BR158.7 CBD IFB CAO 5.22.26.pdf

PDF 18 MB Posted Jun 9, 2026

Attached to: ITB 26-23-214657 ARRC BRIDGE 158. 7 REPLACEMENT
Solicitation number: ITB 26-23-214657 ARRC BRIDGE 158.7 REPLACEMENT
Issued by: Anchorage Municipality, Alaska

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Written by GovTribe AI · Jun 18, 2026

BR158.7 Replacement CBD IFB Plan Set Summary

This is an Invitation for Bid (IFB) plan set document prepared by the Alaska Railroad Corporation (ARRC) Engineering Department for the BR158.7 Replacement CBD (Concrete Box Deck) bridge construction project located at Milepost 158.7 near Cottonwood Creek in the Palmer-Wasilla area of Alaska. The project involves the complete replacement of an existing timber bridge and supporting structures with a new two-span precast concrete box deck bridge on steel pipe piles, including bulkhead construction with sheet piling, riprap apron installation, track work, and associated site restoration. Key estimated quantities include 2.55 acres of clearing and grubbing, 337 cubic yards of unclassified excavation, 4 precast concrete CBD half-span units, 3 precast concrete double-row pile caps, 21 structural steel piles (12-inch and 24-inch diameter pipe), 58 structural steel sheet piles and soldier piles, 304 linear feet of chain link fence, 318 cubic yards of Class II riprap, and 256 track feet of track tamping and surfacing work. Sealed proposals are due by 3:00 PM local time on June 30, 2026, at the ARRC office in Anchorage, with bids submitted to Sarah Wallace at 327 W. Ship Creek Avenue. The complete contract documents include the CBD standards, geotechnical report, standard specifications, and typical sections referenced across the 12-sheet plan set dated May 22, 2026.

The plan set establishes project stations from 13+28.87 to 15+84.87 and includes comprehensive details for contractor responsibilities, including transportation of precast members from the Anchorage warehouse, assembly, installation, and site completion. Pay items range from mobilization and demobilization to specialized construction tasks such as pile pre-boring, structural steel installation, and erosion control, with an additive alternate for concrete barrier installation and temporary railroad crossing. The contract specifies that ARRC will furnish all precast concrete members and establish the contractor's responsibility for quantity verification using contract documents. Prevailing wage requirements apply per the Minimum Rates of Pay for Laborers and Mechanics effective April 1, 2026, and contractors must comply with utility location requirements through the Alaska call center (811/1-800-478-3121) prior to excavation. The project documentation notes estimated material weights and schedules for steel falloff materials totaling approximately 7,510 pounds and walkway/handrail assemblies totaling approximately 4,356 pounds, with detailed specifications for all bolting, welding, and connection requirements per ASTM and AWS standards.

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Other files

File	Type	Posted
Addendum No. 4 – ITB 26-23-214657 Bridge 158.7 Replacement.pdf	PDF	Jul 10, 2026
Addendum No.3 – ITB 26-23-214657 Bridge 158.7 Replacement.pdf	PDF	Jul 2, 2026
Addendum No.2 – ITB 26-23-214657 Bridge 158.7 Replacement.pdf	PDF	Jul 2, 2026
Bid Abstract signed final.pdf	PDF	Jun 24, 2026
Addendum No.1 – ITB 26-23-214657 Bridge 158.7 Replacement.pdf	PDF	Jun 24, 2026
CBD Standards 2025 RevI.pdf	PDF	Jun 9, 2026
Typical Sections-1.01.pdf	PDF	Jun 9, 2026
ITB 26-23-214657 ARRC Bridge 158.7 Replacement.pdf	PDF	Jun 9, 2026
S-2.16 End Track and Bridge.pdf	PDF	Jun 9, 2026

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VICINITY MAP

ALASKA RAILROAD CORPORATION

ENGINEERING SERVICES

P.O. BOX 107500, ANCHORAGE, ALASKA 99510-7500

MAY 2026

BR158.7 REPLACEMENT CBD

IFB PLAN SET

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BRIDGE LOCATION

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WASILLA LAKE

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PARKS HIGHWAY

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PALMER-WASILLA HIGHWAY

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MP158.7

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SHEET LIST TABLE

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SHEET NUMBER

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SHEET TITLE

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COVER

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ABBREVIATIONS & LEGEND

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ESTIMATE OF QUANTITIES

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STEEL STRUCTURES MATERIAL SCHEDULE

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SURVEY CONTROL

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EXISTING PLAN

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PROJECT SITE

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PROPOSED PLAN AND PROFILE

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PROPOSED SHEET PILE LAYOUT

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TYPICAL BULKHEAD SECTION

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PROPOSED PILE LAYOUT

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PROPOSED DETAILS

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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COVER

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BLG

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BAO

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ARRC_CTB_2023.CTB

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5/22/2026 10:35 AM

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RUSSIA

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ANCHORAGE

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NOME

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KOTZEBUE

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JUNEAU

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FAIRBANKS

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CANADA

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KODIAK

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BETHEL

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UNALASKA

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ST. LAWRENCE

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ISLAND

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ST.

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MATTHEW

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ISLAND

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NUNIVAK

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ISLAND

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PRIBILOF

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ISLANDS

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UTQIAGVIK

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WHITTIER

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SEWARD

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ANDERSON

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PALMER

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WASILLA

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WILLOW

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TALKEETNA

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CANTWELL

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HEALY

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NENANA

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ALASKA VICINITY MAP

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NTS

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NORTON SOUND

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BERING SEA

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ALEUTIAN

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ISLANDS

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BRISTOL BAY

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GULF

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ALASKA

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COOK INLET

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SUSITNA

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RIVER

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RIVER

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RIVER

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RIVER

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RIVER

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RIVER

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RIVER

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RIVER

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RIVER

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COPPER

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TANANA

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KUSKOKWIM

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YUKON

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KOYUKUK

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YUKON

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KOBUK

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COLVILLE

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CHUKCHI SEA

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ARCTIC OCEAN

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PROJECT LOCATION

MP158.7

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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ABBREVIATIONS & LEGEND

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BLG

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BAO

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BLG

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ARRC_CTB_2023.CTB

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5/22/2026 10:35 AM

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RIGHT OF WAY

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SIGN

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EXISTING

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PROPOSED

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GENERAL

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MAJOR CONTOUR

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POWER POLE

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ELECTRICAL PEDISTAL

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GUY ANCHOR

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FIBER OPTIC VAULT

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EXISTING

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PROPOSED

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UTILITIES

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EXISTING

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PROPOSED

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TOPOGRAPHY

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LEGEND

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GROUNDLINE

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TRACK

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ROADWAY

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CHAIN LINK FENCE

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FILL LIMITS

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EXCAVATION LIMITS

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STRUCTURE

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EXISTING STRUCTURE TO BE REMOVED

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OVERHEAD POWER

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FIBER OPTIC LINE

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MINOR CONTOUR

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SECTION DESIGNATION

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DETAIL DESIGNATION

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LETTER SERIES

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SHEET NUMBER

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LETTER SERIES

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ABBREVIATIONS

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ABBREVIATIONS (CONT.)

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PVI

ALCAP ALUMINUM CAP ALUMINUM CAP AKDOT & PF ALASKA DEPARTMENT OF TRANSPORTATION & ALASKA DEPARTMENT OF TRANSPORTATION & PUBLIC FACILITIES APPROX. APPROXIMATE APPROXIMATE AREMA AMERICAN RAILWAY ENGINEERING AND MAINTENANCE AMERICAN RAILWAY ENGINEERING AND MAINTENANCE OF WAY ASSOCIATION ARRC ALASKA RAILROAD CORPORATION ALASKA RAILROAD CORPORATION ASTM AMERICAN SOCIETY FOR TESTING AND MATERIALS AMERICAN SOCIETY FOR TESTING AND MATERIALS AWS AMERICAN WELDING SOCIETY AMERICAN WELDING SOCIETY BD BALLAST DECK BALLAST DECK BMP BEST MANAGEMENT PRACTICE BEST MANAGEMENT PRACTICE B.O.P. BEGINNING OF PROJECT BEGINNING OF PROJECT BR BRIDGE BRIDGE BRG BEARING BEARING BVCE BEGIN VERTICAL CURVE ELEVATION BEGIN VERTICAL CURVE ELEVATION BVCS BEGIN VERTICAL CURVE STATION BEGIN VERTICAL CURVE STATION CENTERLINE CENTERLINE C-C CENTER-TO-CENTER CENTER-TO-CENTER CC CIRCULAR CURVE CIRCULAR CURVE CMP CORRUGATED METAL PIPE CORRUGATED METAL PIPE C.P. CONTROL POINT CONTROL POINT CRSI CONCRETE REINFORCING STEEL INSTITUTE CONCRETE REINFORCING STEEL INSTITUTE CS POINT OF CURVE TO SPIRAL POINT OF CURVE TO SPIRAL CSP CORRUGATED STEEL PIPE CORRUGATED STEEL PIPE CWR CONTINUOUSLY WELDED RAIL CONTINUOUSLY WELDED RAIL Dc DEGREE OF CURVATURE, CENTRAL CURVE DEGREE OF CURVATURE, CENTRAL CURVE DIA DIAMETER DIAMETER (E) EXISTING EXISTING E OR EXP EXPANSION EXPANSION Ea SUPERELEVATION ACTUAL SUPERELEVATION ACTUAL ELEV. OR EL. ELEVATION ELEVATION E.O.P. END OF PROJECT END OF PROJECT Eu SUPERELEVATION UNBALANCED SUPERELEVATION UNBALANCED EVCE END VERTICAL CURVE ELEVATION END VERTICAL CURVE ELEVATION EVCS END VERTICAL CURVE STATION END VERTICAL CURVE STATION F OR FIX FIXED OR FREIGHT FIXED OR FREIGHT FG FINISHED GRADE FINISHED GRADE GALV. GALVANIZED GALVANIZED GR GRADE GRADE HORIZ. HORIZONTAL HORIZONTAL H.S. HIGH STRENGTH HIGH STRENGTH IGR INNER GUARD RAIL INNER GUARD RAIL INV. INVERT INVERT K "K" VALUE "K" VALUE LC LENGTH OF CENTRAL CURVE LENGTH OF CENTRAL CURVE LF LINEAR FEET LINEAR FEET LS LENGTH OF SPIRAL CURVE OR LUMP SUM LENGTH OF SPIRAL CURVE OR LUMP SUM LT CURVE LEFT CURVE LEFT LVC LENGTH OF VERTICAL CURVE LENGTH OF VERTICAL CURVE MIN. MINIMUM MINIMUM MISC. MISCELLANEOUS MISCELLANEOUS MK MARK MARK MP MILEPOST MILEPOST (N) NEW OR PROPOSED NEW OR PROPOSED O.C. ON CENTER ON CENTER OD OPEN DECK OPEN DECK OHWM ORDINARY HIGH WATER MEASURED ORDINARY HIGH WATER MEASURED O-O OUT-TO-OUT OUT-TO-OUT P PASSENGER PASSENGER PC POINT OF CURVATURE POINT OF CURVATURE PCF POUNDS PER CUBIC FOOT POUNDS PER CUBIC FOOT POB POINT OF BEGINNING POINT OF BEGINNING POE POINT OF END POINT OF END PT POINT OF TANGENT POINT OF TANGENT PTFE POLYTETRAFLUOROETHYLENE POLYTETRAFLUOROETHYLENE PSI POUNDS PER SQUARE INCH POUNDS PER SQUARE INCH PSF POUNDS PER SQUARE FOOT POUNDS PER SQUARE FOOT PVI POINT OF VERTICAL INTERSECTION POINT OF VERTICAL INTERSECTION R RADIUS RADIUS RBBD ROLLED BEAM BALLAST DECK ROLLED BEAM BALLAST DECK RBOD ROLLED BEAM OPEN DECK ROLLED BEAM OPEN DECK RR RAILROAD RAILROAD RT CURVE RIGHT CURVE RIGHT R/W OR ROW RIGHT OF WAY RIGHT OF WAY SBM STEEL BEAM STEEL BEAM SC POINT OF SPIRAL TO CURVE POINT OF SPIRAL TO CURVE SLV SHORT LEG VERTICAL SHORT LEG VERTICAL SPA SPACE OR SPACING SPACE OR SPACING SPI SPIRAL POINT OF INTERSECTION SPIRAL POINT OF INTERSECTION SSC STANDARD SPECIFICATIONS FOR STANDARD SPECIFICATIONS FOR CONSTRUCTION SSHC STANDARD SPECIFICATIONS FOR STANDARD SPECIFICATIONS FOR HIGHWAY CONSTRUCTION SSP SMOOTH STEEL PIPE SMOOTH STEEL PIPE SSPC STEEL STRUCTURES PAINTING COUNCIL STEEL STRUCTURES PAINTING COUNCIL ST POINT OF SPIRAL TO TANGENT POINT OF SPIRAL TO TANGENT STA. STATION STATION T TANGENT LENGTH TANGENT LENGTH T/XXX TOP OF XXX (T/TIE, T/CAP, ETC.) TOP OF XXX (T/TIE, T/CAP, ETC.) TOR TOP OF RAIL TOP OF RAIL TPI TOTAL HORIZONTAL CURVE POINT OF TOTAL HORIZONTAL CURVE POINT OF INTERSECTION TPT TIMBER PILE TRESTLE TIMBER PILE TRESTLE TS POINT OF TANGENT TO SPIRAL POINT OF TANGENT TO SPIRAL TT THROUGH TRUSS THROUGH TRUSS TYP. TYPICAL TYPICAL V VELOCITY VELOCITY VERT. VERTICAL VERTICAL YPC YELLOW PLASTIC CAP YELLOW PLASTIC CAP Δc CENTRAL ANGLE OF CIRCULAR CURVE CENTRAL ANGLE OF CIRCULAR CURVE ΔT TOTAL ANGLE OF DIVERGENCE TOTAL ANGLE OF DIVERGENCE Θs ANGLE OF SPIRAL CURVE s ANGLE OF SPIRAL CURVE ANGLE OF SPIRAL CURVE

BR158.7 REPLACEMENT CBD

PROJECT STATIONS: 13+28.87 TO 15+84.87

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MP158.7

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1. PAY ITEM QUANTITIES ARE APPROXIMATE. CONTRACTOR IS RESPONSIBLE FOR THEIR OWN QUANTITY TAKE-OFFS USING THE INFORMATION PAY ITEM QUANTITIES ARE APPROXIMATE. CONTRACTOR IS RESPONSIBLE FOR THEIR OWN QUANTITY TAKE-OFFS USING THE INFORMATION WITHIN THE CONTRACT DOCUMENTS TO VERIFY THE QUANTITIES LISTED HEREON. 2. BALLAST REQUIRED FOR TAMPING AND SURFACING TO BE SUBSIDIARY TO TRACK WORK.BALLAST REQUIRED FOR TAMPING AND SURFACING TO BE SUBSIDIARY TO TRACK WORK.

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TABLE OF ESTIMATING FACTORS

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ITEM DESCRIPTION

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ESTIMATING FACTOR

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TRACK BALLAST, TYPE 3

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110 LB/FT 3

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SELECTED MATERIAL

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135 LB/FT 3

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AGGREGATE BASE COURSE , GRADING C-1

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144 LB/FT 3

AutoCAD SHX Text ITEMS FURNISHED BY ARRC: 1. PRECAST CBD SPAN HALVES AND PILE CAPS SHALL BE FURNISHED BY ARRC. CONTRACTOR IS PRECAST CBD SPAN HALVES AND PILE CAPS SHALL BE FURNISHED BY ARRC. CONTRACTOR IS RESPONSIBLE FOR TRANSPORTING ALL PRECAST CONCRETE MEMBERS FROM THE ANCHORAGE WAREHOUSE TO THE SITE, ASSEMBLING, AND SETTING IN PLACE.

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SUMMARY OF ESTIMATED QUANTITIES PROVIDED BY ARRC

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DESCRIPTION

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UNIT

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QUANTITY

AutoCAD SHX Text 7"x9"x8'-6" TIE

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AutoCAD SHX Text 7"x9"x10'-0" TIE

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MISC. TRACK MATERIAL (TIE PLATES, ETC.)

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ALL REQ'D

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NEW 115RE RAIL

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PRECAST CONCRETE CBD (HALF SPAN)

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PRECAST CONCRETE DOUBLE ROW PILE CAP

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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ESTIMATE OF QUANTITIES

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BLG

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BAO

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BLG

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ARRC_CTB_2023.CTB

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5/22/2026 10:35 AM

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TABLE OF PAY ITEMS

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PAY ITEM

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ITEM DESCRIPTION

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PAY UNIT

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TOTAL QUANTITY

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CLEARING AND GRUBBING

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REMOVAL OF EXISTING BRIDGE AND STRUCTURES

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UNCLASSIFIED EXCAVATION

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SELECTED MATERIAL, TYPE A

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TON

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SELECTED MATERIAL, TYPE C

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TON

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TEMPORARY ACCESS

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AGGREGATE BASE (SUBBALLAST), GRADING C-1

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TON

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RAILROAD BALLAST, TYPE 3

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TON

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AutoCAD SHX Text CLASS A CONCRETE, 12"ø x 0.500”t PILEt PILE

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AutoCAD SHX Text CLASS A CONCRETE, 12"ø x 0.500”t BOLLARDt BOLLARD

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AutoCAD SHX Text CLASS A CONCRETE, 24"ø x 0.500”t PILEt PILE

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AutoCAD SHX Text 501.0007.1

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INSTALL PRECAST CONCRETE MEMBER, 28' CBD SPAN

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INSTALL PRECAST CONCRETE MEMBER, DOUBLE ROW PILE CAP

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AutoCAD SHX Text FURNISH REINFORCING STEEL, 12"ø PILE CAGES

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AutoCAD SHX Text FURNISH REINFORCING STEEL, 24"ø PILE CAGES

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FURNISH STRUCTURAL STEEL, 28' CBD FALLOFF MATERIALS

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FURNISH STRUCTURAL STEEL, WALKWAY WITH HANDRAIL ASSEMBLY

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INSTALL STRUCTURAL STEEL, 28' CBD FALLOFF MATERIALS

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INSTALL STRUCTURAL STEEL, WALKWAY WITH HANDRAIL ASSEMBLY

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AutoCAD SHX Text FURNISH STRUCTURAL STEEL PILES, 12"Ø x 0.500"t PIPE

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FURNISH PS-31 SHEET PILE (35 FT LENGTH, ASTM A572, GRADE 50)

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FURNISH PS-31 90° T PILE (35 FT LENGTH, ASTM A572, GRADE 50)

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AutoCAD SHX Text FURNISH HP12x63 PS-31 SOLDIER PILE (40 FT LENGTH, ASTM A572, GRADE 50)

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AutoCAD SHX Text DRIVE STRUCTURAL STEEL PILES, 12"ø PIPE

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AutoCAD SHX Text DRIVE STRUCTURAL STEEL PILES, 12"ø PIPE BOLLARD

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STRUCTURAL STEEL SHEET PILES, PS-31 PILES

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PILE PRE-BORE, 12"Ø PILES

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PILE PRE-BORE, 24"Ø PILES

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CHAIN LINK FENCE

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RIPRAP, CLASS II

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STANDARD SIGN, BRIDGE SIGN - TYPE D

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SEEDING

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GEOTEXTILE, EROSION CONTROL, CLASS 1

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MOBILIZATION AND DEMOBILIZATION

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EROSION, SEDIMENT, AND POLLUTION CONTROL ADMINISTRATION

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AutoCAD SHX Text 641.0003

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TEMPORARY EROSION, SEDIMENT, AND POLLUTION CONTROL

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AutoCAD SHX Text 642.0001

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CONSTRUCTION SURVEYING

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AutoCAD SHX Text 643.0002

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TRAFFIC MAINTENANCE

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AutoCAD SHX Text 643.0023

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TRAFFIC PRICE ADJUSTMENT

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AutoCAD SHX Text 646.0001

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CPM SCHEDULING

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AutoCAD SHX Text 647.0001

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AS-BUILT DRAWINGS AND SPECIFICATIONS

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AutoCAD SHX Text 802.0001

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TRACK WORK, 115# RE RAIL

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AutoCAD SHX Text 802.0005

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TRACK TAMPING, SURFACING, AND FINAL DRESSING

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AutoCAD SHX Text 803.0001

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TRACK REMOVAL

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ADDITIVE ALTERNATE

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PAY ITEM

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ITEM DESCRIPTION

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PAY UNIT

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TOTAL QUANTITY

AutoCAD SHX Text 614.0001

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CONCRETE BARRIER

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AutoCAD SHX Text 617.0001

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TEMPORARY RAILROAD CROSSING

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BR158.7 REPLACEMENT CBD

STEEL STRUCTURES MATERIAL SCHEDULE

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MP158.7

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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STEEL STRUCTURES MATERIAL SCHEDULE

AutoCAD SHX Text 12268

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BLG

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BAO

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BLG

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ARRC_CTB_2023.CTB

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5/22/2026 10:35 AM

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ESTIMATED STEEL FALLOFF MATERIAL SCHEDULE

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DESCRIPTION

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MARK

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SIZE

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LENGTH

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UNIT

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PER SPAN

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QUANTITY

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WEIGHT PER SPAN

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ESTIMATED WEIGHT

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ABUTMENT TRANSITION PLATE, UNCOATED

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DP-E

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INTERMEDIATE TRANSITION PLATE, UNCOATED

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DP-I

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STEEL HSS FOR INTERMEDIATE TRANSITION PLATE

AutoCAD SHX Text D/17

AutoCAD SHX Text HSS2x2

AutoCAD SHX Text 5'-1"

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STEEL T-20, UNCOATED

AutoCAD SHX Text T-20

AutoCAD SHX Text WT3x4.5

AutoCAD SHX Text 8'-5"

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STEEL HSS FOR STEPPED TEE

AutoCAD SHX Text D/16

AutoCAD SHX Text HSS2x2

AutoCAD SHX Text 4"

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DIAPHRAGM PLATE, GALVANIZED

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SD-1

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DIAPHRAGM ANGLES, GALVANIZED

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DA-1 / DA-2

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PAIR

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GIRDER STOPS, EXPANSION, GALVANIZED

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GS-1

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GIRDER STOPS, FIXED, GALVANIZED

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GS-2

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GIRDER BOLT ASTM F3125, GRADE A325, GALVANIZED

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1" DIA.

AutoCAD SHX Text 2 1/2"

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CAP ANCHOR ROD ASTM F1554, GRADE 36, GALVANIZED

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1 1/2" DIA

AutoCAD SHX Text 2'-0"

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AutoCAD SHX Text TENSION BAR ASTM F1554, GRADE 36 w/ ASTM A563 NUTS, GALVANIZED

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1" DIA.

AutoCAD SHX Text 4'-0"

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TENSION BAR SQUARE PLATE GALVANIZED WASHER

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AutoCAD SHX Text 3/8"t

AutoCAD SHX Text 3" X 3"

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AutoCAD SHX Text DIAPHRAGM PLATE BOLT ASTM F3125, GRADE A325 AND TWO F436 FLAT CIRCULAR WASHERS, GALVANIZED w/ HEAVY HEX ELASTIC LOCKNUT, ZINC PLATED OR GALVANIZED

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7/8" DIA.

AutoCAD SHX Text 3"

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TOTAL ESTIMATED WEIGHT

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AutoCAD SHX Text CBD STANDARD DRAWINGS: 1. SHEET 10, DETAIL D. NO PLATE PLUG ASSEMBLIES OR 16" PILES PLANNED IN PROJECT. SHEET 10, DETAIL D. NO PLATE PLUG ASSEMBLIES OR 16" PILES PLANNED IN PROJECT. 2. SHEET 13, NO PILE BRACING REQUIRED IN PROJECT. SHEET 13, NO PILE BRACING REQUIRED IN PROJECT. 3. CONTRACTOR TO VERIFY LOCATION OF ANCHOR ROD HOLES IN PRECAST CONCRETE PILE CAPS CONTRACTOR TO VERIFY LOCATION OF ANCHOR ROD HOLES IN PRECAST CONCRETE PILE CAPS MATCH PLANNED LOCATION OF ANCHOR RODS. NEW HOLES MAY NEED TO BE CORED IN PRECAST CONCRETE CAPS TO ACCEPT ANCHOR RODS.

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ESTIMATED WALKWAY AND HANDRAIL ASSEMBLY MATERIAL SCHEDULE

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DESCRIPTION

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MARK

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SIZE

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LENGTH

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UNIT

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PER SPAN

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QUANTITY

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WEIGHT PER SPAN

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ESTIMATED WEIGHT

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WALKWAY BRACKET, ASTM A36, GALVANIZED

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WB-2

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AutoCAD SHX Text WALKWAY BRACKET TO CBD CURB BOLT ASTM F3125, GRADE A325 GALVANIZED w/ ONE F436 WASHER AND ONE BEVELED WASHER PW-1, AND HEAVY HEX ELASTIC LOCKNUT, ZINC PLATED OR GALVANIZED

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3/4" DIA.

AutoCAD SHX Text 9"

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BEVELED PLATE WASHER, GALVANIZED

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PW-1

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HANDRAIL PANEL

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AutoCAD SHX Text HANDRAIL POST TO WALKWAY BRACKET BOLT ASTM F3125, GRADE A325 AND F436 FLAT CIRCULAR WASHER, GALVANIZED w/HEAVY HEX ELASTIC LOCKNUT , ZINC PLATED OR GALVANIZED

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7/8" DIA.

AutoCAD SHX Text 2"

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HANDRAIL ABUTMENT END

AutoCAD SHX Text E/20

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HANDRAIL INTERMEDIATE END

AutoCAD SHX Text F/20

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AutoCAD SHX Text HANDRAIL PANEL TO HANDRAIL END BOLT ASTM F3125, GRADE A325 AND TWO F436 FLAT CIRCULAR WASHERS, GALVANIZED w/ ELASTIC LOCKNUT, ZINC PLATED OR GALVANIZED

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AutoCAD SHX Text 3/4"

AutoCAD SHX Text 5-1/2"

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3' X 20' 38W2 STEEL GRATE DECKING, GALVANIZED

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AutoCAD SHX Text 3'

AutoCAD SHX Text 20'

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SQ. FT.

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VARIES*

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VARIES

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AutoCAD SHX Text CARRIAGE BOLTS, WASHER, AND GRIP STRUT DIAMOND WASHER, ALL GALVANIZED w/ ELASTIC LOCKNUT, ZINC PLATED OR GALVANIZED

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5/16" DIA.

AutoCAD SHX Text 5-1/2"

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CONDUIT BRACKET, ASTM A36, GALVANIZED

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CB-1

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AutoCAD SHX Text CONDUIT BRACKET TO HANDRAIL POST BOLT ASTM F3125, GRADE A325, GALVANIZED w/ HEAVY HEX ELASTIC LOCKNUT, ZINC PLATED OR GALVANIZED

AutoCAD SHX Text

3/4" DIA.

AutoCAD SHX Text 3-1/2"

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AutoCAD SHX Text CONDUIT BRACKET RETAINER BOLT ASTM F3125, GRADE A325, GALVANIZED w/ ELASTIC LOCKNUT, ZINC PLATED OR GALVANIZED

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3/8" DIA.

AutoCAD SHX Text 2"

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TOTAL ESTIMATED WEIGHT

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1. BOLT QUANTITIES ARE ESTIMATED REQUIRED QUANTITY, AND DO NOT INCLUDE CONTINGENCY FOR BOLT QUANTITIES ARE ESTIMATED REQUIRED QUANTITY, AND DO NOT INCLUDE CONTINGENCY FOR LOST OR DAMAGED MATERIALS.

NOTES

LEGEND

#99 #303

#309

#100

#102

PRELIMINARY

NOT FOR CONSTRUCTION

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(PRVT)

AutoCAD SHX Text 11A

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CREEKSIDE PLAZA

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E FINANCIAL DR

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LOTS 2B & 2C

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CREEKSIDE PLAZA

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E OLD MATANUSKA RD

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BELLA VISTA WEST

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PARK

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COTTONWOOD

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COTTONWOOD

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E GLENWOOD AVE

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S WOODCREST CIR

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HILLS II

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RICHMOND

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E PALMER-WASILLA HWY

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CREEK

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E FINANCIAL DR

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ARRC MAINLINE

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1) HORIZONTAL DATUM AND VERTICAL DATUM IS ALASKA STATE PLANE COORDINATE SYSTEM ZONE 4, NAD83(2011), GEOID12B ORTHOMETRIC HEIGHTS PER OPUS PROCESSING OF CONTROL POINT #100. 2) CONTOURS PER 2019 M.S.B. LIDAR DATA. 3) IMAGERY PER APRIL 2022 APN UAV AND 2019 M.S.B. DATA.

AutoCAD SHX Text CONTROL POINT, SEE POINT TABLE PROPERTY LINES PER MAT-SU BOROUGH G.I.S. CONTOURS PER MAT-SU BOROUGH LIDAR, SEE NOTE 2.

AutoCAD SHX Text

MP158.7

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(FEET)

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CONTROL POINTS

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POINT

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NORTHING

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EASTING

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ELEVATION

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DESCRIPTION

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AutoCAD SHX Text 2767969.38

AutoCAD SHX Text 1742732.21

AutoCAD SHX Text 328.33

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SET REBAR W/ YPC

AutoCAD SHX Text

AutoCAD SHX Text 2768539.02

AutoCAD SHX Text 1742681.24

AutoCAD SHX Text 330.48

AutoCAD SHX Text

SET REBAR W/ YPC

AutoCAD SHX Text

AutoCAD SHX Text 2768541.57

AutoCAD SHX Text 1742676.96

AutoCAD SHX Text 330.55

AutoCAD SHX Text

SET MAG-SPIKE

AutoCAD SHX Text

AutoCAD SHX Text 2767971.04

AutoCAD SHX Text 1742752.41

AutoCAD SHX Text 328.59

AutoCAD SHX Text

FND PK IN CL TRACKS

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AutoCAD SHX Text 2767761.88

AutoCAD SHX Text 1742889.15

AutoCAD SHX Text 317.46

AutoCAD SHX Text

FOUND BRASS CAP

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 SURVEY CONTROL.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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SURVEY CONTROL

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BLG

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BAO

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BLG

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ARRC_CTB_2023.CTB

5/22/2026 10:35 AM

EXISTING BRIDGE DEMO PLAN

COTTONWOOD CREEK

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OHW

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(E) TIMBER BRIDGE TO BE REMOVED

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TO FAIRBANKS

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(E) TIMBER ABUTMENT TO BE REMOVED, TYP.

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(E) TIMBER PILE BENT TO BE REMOVED, TYP.

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(E) CONCRETE BARRIERS

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EDGE OF WATER SURVEYED APRIL 2022

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TO ANCHORAGE

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(E) SIGN TO REMAIN

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(E) WALKWAY TO BE REMOVED, TYP.

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OHW

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OHW

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OHW

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(E) CONCRETE RETAINING WALL

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EXISTING WALKWAY

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EXISTING WALKWAY

AutoCAD SHX Text MODIFICATION OF EXISTING SPAN REQUIRED FOR INSTALLATION OF 24" PILES BETWEEN STRINGERS

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(FEET)

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SCALE:

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1" = 5' (FULL SIZE)

AutoCAD SHX Text A

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MP158.7

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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EXISTING PLAN

AutoCAD SHX Text 12268

AutoCAD SHX Text

BLG

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BAO

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BLG

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ARRC_CTB_2023.CTB

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5/22/2026 10:36 AM

NOTES: 1. CONTRACTOR RESPONSIBLE TO REMOVE ALL TIMBER STRUCTURES AND PILES FROM SITE AND CONTRACTOR RESPONSIBLE TO REMOVE ALL TIMBER STRUCTURES AND PILES FROM SITE AND DISPOSE OF AT AN APPROVED LOCATION. 2. EXISTING BRIDGE AND PILING TO BE REMOVED IN ACCORDANCE WITH 202-3.03.EXISTING BRIDGE AND PILING TO BE REMOVED IN ACCORDANCE WITH 202-3.03.

PROPOSED PROJECT SITE

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(FEET)

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COTTONWOOD CREEK

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MP158.7

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SCALE:

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1" = 40' (FULL SIZE)

AutoCAD SHX Text A

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

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KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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PROJECT SITE

AutoCAD SHX Text 12268

AutoCAD SHX Text

BLG

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BAO

AutoCAD SHX Text

BLG

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ARRC_CTB_2023.CTB

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5/22/2026 10:36 AM

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E OLD MATANUSKA RD

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E GLENWOOD AVE.

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E PALMER-WASILLA HWY.

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(E) CONCRETE BARRIERS, TO BE REMOVED

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(N) CHAIN LINK FENCE

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APPROX. CLEARING AND GRUBBING LIMITS, REFER TO PERMITS FOR ALLOWED LIMITS

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APPROX. CLEARING AND GRUBBING LIMITS, REFER TO PERMITS FOR ALLOWED LIMITS

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(N) CHAIN LINK FENCE

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(N) CONCRETE BARRIER BERM

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TEMPORARY ACCESS

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TEMPORARY ACCESS

AutoCAD SHX Text CHAIN LINK FENCE TO CONTINUE PAST CLEARING AND GRUBBING LIMITS TO ROW, SEE NOTE 1

AutoCAD SHX Text NOTES: 1. FENCE TO EXTEND TO ROW, APPROXIMATE LOCATION SHOWN. CONSULT CONTRACT MANAGER OR FENCE TO EXTEND TO ROW, APPROXIMATE LOCATION SHOWN. CONSULT CONTRACT MANAGER OR ENGINEER TO ESTABLISH ACTUAL ALIGNMENT IN THE FIELD FOR FENCE BEYOND CLEARING AND GRUBBING LIMITS.

AutoCAD SHX Text

(N) CHAIN LINK FENCE

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TEMPORARY ACCESS

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(N) CONCRETE BARRIER BERM

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PROPOSED BRIDGE PROFILE

PROPOSED BRIDGE PLAN

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COTTONWOOD CREEK

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OHW

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TO FAIRBANKS

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EDGE OF WATER SURVEYED APRIL 2022

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TO ANCHORAGE

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OHW

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OHW

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OHW

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(N) WALKWAY

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(N) 2 SPAN CBD BRIDGE

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(N) 3' THICK CLASS II RIPRAP, TYP.

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(N) 12" PIPE PILE BOLLARDWITH SIGNAGE, TYP.

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(N) FIBER OPTIC JUNCTION BOX, TYP.

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(N) CHAIN LINK FENCE, TYP.

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(N) GEOTEXTILE, EROSION CONTROL, CLASS I

AutoCAD SHX Text MODIFICATION OF EXISTING SPAN REQUIRED FOR INSTALLATION OF 24" PILES BETWEEN STRINGERS

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FAIRBANKS

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0.59% GRADE

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(E) TIMBER PILING BENTS TO BE REMOVED, TYP.

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(N) 2 SPAN CBD BRIDGE

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TOP OF RAIL

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3' MIN.

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EXISTING GROUND 2022 SURVEY CREEK SECTIONS

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(N) SHEET PILE BULKHEAD, TYP.

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ANCHORAGE

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(N) RIPRAP, CLASS II, TYP.

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OHW ELEV.=315'

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LOW CHORD ELEV. 323.97

AutoCAD SHX Text 3'

AutoCAD SHX Text E

AutoCAD SHX Text F

AutoCAD SHX Text E

AutoCAD SHX Text

3' TYP.

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2" GROUT PAD, SEE NOTE 1

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3' TYP.

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PREPARED EMBANKMENT FOUNDATION, SEE NOTE 3, TYP.

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WATER LEVEL SURVEYED APRIL 2022

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(N) GEOTEXTILE, EROSION CONTROL, CLASS I, TYP.

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MODIFICATION OF EXISTING SPAN REQUIRED FOR INSTALLATION OF 24" PILES

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PROPOSED GROUND

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EXISTING GROUND

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LEVELING PAD, TYP., SEE NOTE 2

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(FEET)

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COTTONWOOD CREEK

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MP158.7

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SCALE:

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1" = 5' (FULL SIZE)

AutoCAD SHX Text B

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SCALE:

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1" = 5' (FULL SIZE)

AutoCAD SHX Text A

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AutoCAD SHX Text NOTES: 1. CUT-OFF ELEV. OF BENT #3 TO BE SET ABOVE BENTS #1 AND #2 PER PILE LAYOUT SHEET 07. GROUT PADS TO BE BUILT UP CUT-OFF ELEV. OF BENT #3 TO BE SET ABOVE BENTS #1 AND #2 PER PILE LAYOUT SHEET 07. GROUT PADS TO BE BUILT UP BELOW BEARING PADS AND ANCHORS ON UPHILL SIDE OF INTERMEDIATE PILE CAP AS SHOWN IN THE CBD STANDARD DRAWINGS. 2. A SKIM COAT OR LESS THAN " OF SELF LEVELING GROUT OR EPOXY SHALL BE PLACED UNDER EACH BEARING PAD TO A SKIM COAT OR LESS THAN " OF SELF LEVELING GROUT OR EPOXY SHALL BE PLACED UNDER EACH BEARING PAD TO 12" OF SELF LEVELING GROUT OR EPOXY SHALL BE PLACED UNDER EACH BEARING PAD TO ACCOUNT FOR VARIANCE IN PRECAST CBD AND PILE CAP SURFACES AND ENSURE MAXIMUM BEARING CONTACT. 3. BENCH EXISTING SLOPES STEEPER THAN 4H:1V IN ACCORDANCE WITH SUBSECTION 203-3.03. BENCH EXISTING SLOPES STEEPER THAN 4H:1V IN ACCORDANCE WITH SUBSECTION 203-3.03. 4. SHEET PILE SHALL BE DRIVEN TO AN EMBEDMENT LENGTH OF DOUBLE THE STICKUP AMOUNT. SHEET PILE SHALL BE DRIVEN TO AN EMBEDMENT LENGTH OF DOUBLE THE STICKUP AMOUNT.

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

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PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

AutoCAD SHX Text

DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

AutoCAD SHX Text

KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

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PROPOSED PLAN AND PROFILE

AutoCAD SHX Text 12268

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BLG

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BAO

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BLG

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ARRC_CTB_2023.CTB

AutoCAD SHX Text

5/22/2026 10:36 AM

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1.5:1 MAX

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1.5:1 MAX

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1.5:1 MAX

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1.5:1 MAX

PROPOSED SHEET PILE LAYOUT

SHEET PILE SWING ANGLE

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SHEET PILE PS-31, TYP.

AutoCAD SHX Text 11'-7"

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PS-31 90° T-PILE, TYP.

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AutoCAD SHX Text B

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SHEET PILE SWING ANGLE DETAIL, TYP.

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2' MAX, TYP.

AutoCAD SHX Text 4'-10 "58"

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SHEET PILE "0"SHEET PILE "0"

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SHEET PILE "3" TYP.SHEET PILE "3" TYP.

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4', MIN. SEE NOTE 2

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SHEET PILE "3" TYP.SHEET PILE "3" TYP.

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PROPOSED BRIDGE PROPOSED BRIDGE & BULKHEAD

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PROPOSED BRIDGE PROPOSED BRIDGE & BULKHEAD

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SHEET PILE "0"SHEET PILE "0"

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SHEET PILE "3" TYP.SHEET PILE "3" TYP.

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SHEET PILE "3" TYP.SHEET PILE "3" TYP.

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2'-11", MIN.

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"A" SWING ANGLE

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HP PS-31 SOLDIER PILE, TYP.

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SCALE:

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1" = 6' (FULL SIZE)

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MP158.7

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(FEET)

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PROJECT:

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SHEET TITLE:

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AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

AutoCAD SHX Text

PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

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CHECKED BY:

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DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

AutoCAD SHX Text

KEY MAP

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ANCHORAGE

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SEWARD

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FAIRBANKS

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BR158.7 REPLACEMENT CBD

AutoCAD SHX Text

PROPOSED SHEET PILE LAYOUT

AutoCAD SHX Text 12268

AutoCAD SHX Text

BLG

AutoCAD SHX Text

BAO

AutoCAD SHX Text

BLG

AutoCAD SHX Text

ARRC_CTB_2023.CTB

AutoCAD SHX Text

5/22/2026 10:36 AM

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BENT #1

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BENT #3

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SHEET PILES

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ANGLE "A"

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SHEET PILES

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ANGLE "A"

AutoCAD SHX Text 0 - 3

AutoCAD SHX Text 0.0°

AutoCAD SHX Text 0 - 3

AutoCAD SHX Text 0.0°

AutoCAD SHX Text 4 - 24

AutoCAD SHX Text 8.2°

AutoCAD SHX Text 4 - 24

AutoCAD SHX Text 8.2°

AutoCAD SHX Text NOTES: 1. DECK PLATES DP-E AND T-20 NOT SHOWN FOR CLARITY. DECK PLATES DP-E AND T-20 NOT SHOWN FOR CLARITY. 2. UTILITY SLACK BOX TO BE INSTALLED BY OTHERS (UTILITY) WITH 4 FEET MINIMUM DISTANCE FROM END OF TIE AND MINIMUM UTILITY SLACK BOX TO BE INSTALLED BY OTHERS (UTILITY) WITH 4 FEET MINIMUM DISTANCE FROM END OF TIE AND MINIMUM DEPTH OF 2 FEET. 3. TIES ON SPANS TO BE 8.5' TIES. FIRST 10 TIES OFF EITHER SIDE OF BRIDGE TO BE 10' TIES BEFORE RESUMING 8.5' TIES, TIES ON SPANS TO BE 8.5' TIES. FIRST 10 TIES OFF EITHER SIDE OF BRIDGE TO BE 10' TIES BEFORE RESUMING 8.5' TIES, TYPICAL SPACING. 4. INSTALL WALKWAY ASSEMBLY ON DOWNSTREAM SIDE OF BRIDGE. CONDUIT BRACKETS, WHEN REQUIRED, MAY BE MOUNTED TO INSTALL WALKWAY ASSEMBLY ON DOWNSTREAM SIDE OF BRIDGE. CONDUIT BRACKETS, WHEN REQUIRED, MAY BE MOUNTED TO THE WALKWAY OR CURB. 5. SHEET PILES "1" AND "3" SHALL BE PS-31 90 T-PILES, TYPICAL.SHEET PILES "1" AND "3" SHALL BE PS-31 90° T-PILES, TYPICAL.

AutoCAD SHX Text

SHEET PILE SWING ANGLE TABLE

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SCALE:

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1" = 6' (FULL SIZE)

AutoCAD SHX Text B

TYPICAL BULKHEAD SECTION

1% MIN.

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1% MIN.

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1% MIN.

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1% MIN.

AutoCAD SHX Text 2:1

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6', TYP.

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VARIES, SEE NOTE 7

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VARIES, SEE NOTE 8.

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VARIES, SEE NOTE 8

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3' MIN., TYP.

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3' MIN., TYP.

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1:1 MAX., TYP.

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1.5 MAX/4:1 MIN, TYP.

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1' MIN.

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1' MIN.

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2' MIN.

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(N) GEOTEXTILE, EROSION CONTROL, CLASS I, TYP.

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SCALE:

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1" = 2' (FULL SIZE)

AutoCAD SHX Text A

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MP158.7

AutoCAD SHX Text UTILITIES: : VERIFY ALL UNDERGROUND UTILITIES PRIOR TO DIGGING. LOCATE CALL CENTER OF ALASKA (811): - ANCHORAGE ............1.907.278.3121 ANCHORAGE ............1.907.278.3121 - STATEWIDE ..............1.800.478.3121 STATEWIDE ..............1.800.478.3121 CALL CENTER WILL NOTIFY SUBSCRIBED UTILITIES ONLY, OTHER UTILITIES NEED TO BE CONTACTED INDIVIDUALLY.

AutoCAD SHX Text GENERAL: : 1. OLD BALLAST AND SUB-BALLAST TO BE SCARIFIED AND MIXED INTO THE NEW EMBANKMENT MATERIALS; THEN GRADED, SHAPED, AND COMPACTED. OLD BALLAST AND SUB-BALLAST TO BE SCARIFIED AND MIXED INTO THE NEW EMBANKMENT MATERIALS; THEN GRADED, SHAPED, AND COMPACTED. 2. EXCAVATE MATERIAL ADJACENT TO RIPRAP TO ESTABLISH POSITIVE DRAINAGE AWAY FROM THE RIPRAP AND ANY OTHER STRUCTURES; AND SUCH THAT EXCAVATE MATERIAL ADJACENT TO RIPRAP TO ESTABLISH POSITIVE DRAINAGE AWAY FROM THE RIPRAP AND ANY OTHER STRUCTURES; AND SUCH THAT PONDING DOES NOT OCCUR BELOW OR ADJACENT TO ANY PLACED MATERIALS OR STRUCTURES. 3. BALLAST DEPTH SHALL BE, AT A MINIMUM, 12" BELOW THE TIE, AS MEASURED AT THE LOW RAIL. BALLAST DEPTH SHALL BE, AT A MINIMUM, 12" BELOW THE TIE, AS MEASURED AT THE LOW RAIL. 4. TEN (10) TEN FOOT TIES SHALL BE PLACED AT BOTH APPROACHES WITHIN THE BULKHEADS. TEN (10) TEN FOOT TIES SHALL BE PLACED AT BOTH APPROACHES WITHIN THE BULKHEADS. 5. EXCAVATION (NATIVE MATERIAL) MAY BE USED FOR THE ROADBED EMBANKMENT IF IT MEETS REQUIREMENTS FOR SELECTED MATERIAL, TYPE A. EXCAVATION (NATIVE MATERIAL) MAY BE USED FOR THE ROADBED EMBANKMENT IF IT MEETS REQUIREMENTS FOR SELECTED MATERIAL, TYPE A. 6. EXCAVATION (NATIVE MATERIAL) MAY BE USED FOR THE SUB-ROADBED EMBANKMENT IF IT MEETS THE REQUIREMENTS FOR SELECTED MATERIAL, TYPE C. EXCAVATION (NATIVE MATERIAL) MAY BE USED FOR THE SUB-ROADBED EMBANKMENT IF IT MEETS THE REQUIREMENTS FOR SELECTED MATERIAL, TYPE C. 7. EMBANKMENT WIDTH VARIES WITHIN THE BULKHEAD AND IS BASED ON THE INSIDE TO INSIDE DIMENSIONS OF THE PS-31 SHEET PILES. EMBANKMENT WIDTH VARIES WITHIN THE BULKHEAD AND IS BASED ON THE INSIDE TO INSIDE DIMENSIONS OF THE PS-31 SHEET PILES. 8. ALL MATERIALS WITHIN THE BULKHEAD TO BE SHAPED AND COMPACTED IN ACCORDANCE WITH SUBSECTION 301-3.03. ALL MATERIALS WITHIN THE BULKHEAD TO BE SHAPED AND COMPACTED IN ACCORDANCE WITH SUBSECTION 301-3.03. 9. DIMENSIONS VARY AS THE RIPRAP APRON SLOPES BOTH PARALLEL AND PERPENDICULAR TO THE CENTERLINE OF THE TRACK. DIMENSIONS VARY AS THE RIPRAP APRON SLOPES BOTH PARALLEL AND PERPENDICULAR TO THE CENTERLINE OF THE TRACK. 10. WHEN RIPRAP IS PLACED ADJACENT TO THE TRACK PRISM, TIE INTO EXISTING EMBANKMENT LINES AND GRADES UP TO AN ELEVATION NOT EXCEEDING THE WHEN RIPRAP IS PLACED ADJACENT TO THE TRACK PRISM, TIE INTO EXISTING EMBANKMENT LINES AND GRADES UP TO AN ELEVATION NOT EXCEEDING THE TOP OF SUB-BALLAST ELEVATION. MATERIALS: : - ROADBED EMBANKMENT: SELECTED MATERIAL, TYPE A IN ACCORDANCE WITH SUBSECTION 703-2.07. ROADBED EMBANKMENT: SELECTED MATERIAL, TYPE A IN ACCORDANCE WITH SUBSECTION 703-2.07. - SUB-BALLAST: AGGREGATE BASE COURSE, GRADING C-1 IN ACCORDANCE WITH SUBSECTION 703-2.03. SUB-BALLAST: AGGREGATE BASE COURSE, GRADING C-1 IN ACCORDANCE WITH SUBSECTION 703-2.03. - BALLAST: TYPE 3 IN ACCORDANCE WITH SUBSECTION 703-2.17. BALLAST: TYPE 3 IN ACCORDANCE WITH SUBSECTION 703-2.17. - RIPRAP: CLASS II/III IN ACCORDANCE WITH SUBSECTION 611-2.01.3.RIPRAP: CLASS II/III IN ACCORDANCE WITH SUBSECTION 611-2.01.3.

AutoCAD SHX Text

(FEET)

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PROJECT:

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SHEET TITLE:

AutoCAD SHX Text

AutoCAD SHX Text P:\ENGINEERING\BRIDGES\BR 158_7 COTTONWOOD CREEK\2022 BRIDGE REPLACEMENT PROGRAM\BR 158.7 CBD REPLACEMENT.DWG

AutoCAD SHX Text

PUBLISHED CTB

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DRAWING LOCATION

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DATE TIME

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SCALE

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ENGINEERING DEPARTMENT

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P.O. BOX 107500 BOX 107500 ANCHORAGE, ALASKA 99510-7500

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SHEET

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YEAR

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AFE NO.

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AS NOTED

AutoCAD SHX Text

CHECKED BY:

AutoCAD SHX Text

DRAFTED BY:

AutoCAD SHX Text ALASKA RAILROAD CORPORATION PO BOX 107500, ANCHORAGE, AK 99510-7500 327 W SHIP CREEK AVE ANCHORAGE, AK 99501 (907) 265-2300

AutoCAD SHX Text

KEY MAP

AutoCAD SHX Text

ANCHORAGE

AutoCAD SHX Text

SEWARD

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FAIRBANKS

AutoCAD SHX Text

BR158.7 REPLACEMENT CBD

AutoCAD SHX Text

TYPICAL BULKHEAD SECTION

AutoCAD SHX Text 12268

AutoCAD SHX Text

BLG

AutoCAD SHX Text

BAO

AutoCAD SHX Text

BLG

AutoCAD SHX Text

ARRC_CTB_2023.CTB

5/22/2026 10:36 AM

PROPOSED PIPE PILE LAYOUT

AutoCAD SHX Text 5'-2"

AutoCAD SHX Text 5'-4 "12"

AutoCAD SHX Text 45°

AutoCAD SHX Text 5'-4 "12"

AutoCAD SHX Text

FORWARD BATTER PILE 1:12

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PROPOSED BRIDGE = EXISTING BRIDGE ALIGNMENT: TANGENT

AutoCAD SHX Text 45°

AutoCAD SHX Text

FORWARD BATTER PILE 1:12

AutoCAD SHX Text BENT #1 ABUTMENT DOUBLE ROW PILE CAP (6)…

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File details come from the government source that posted it. Updated Jun 18, 2026.