Plans - MD SP NASA 2(1).pdf

Title Sheet

Symbols And Abbreviations

Location Map

Summaries and Schedules

Standards & Details

DESCRIPTION

INDEX TO SHEETS

PLANS FOR PROPOSED

PLANS PREPARED BY

EASTERN FEDERAL LANDS HIGHWAY DIVISION

ASHBURN, VIRGINIA

DESCRIPTION OF PROJECT

IMPROVEMENT:

PROJECT LENGTH: 0.75 Mile

SPECIFICATIONS:

BRIDGE:

DESIGN DESIGNATION:

PRINCE GEORGE'S COUNTY, MARYLAND

OF NASA ACCESS BRIDGE

REPAIR/REHABILITATION

Administration

Federal Highway

U.S. Department of Transportation

SHEET

NO

A01

LANE MILES:

SPACE ADMINISTRATION

NATIONAL AERONAUTICS AND

Bridge Plans

GODDARD SPACE FLIGHT CENTER

PROJECT MD SP NASA 2(1)

ROAD: WIDTH

15'-17'

SURFACE BASE

ACP N/A

Last inspected April, 2022

Structure no. 2170-001P

NASA Access Bridge over Baltimore-Washington Parkway

0511AZ

JULY, 2023

0.96 Mile

Project Manager

Katerina Roman

Lead Designer

Alazar Feleke

Highway Design Manager

Ashley Timm guardrail sections, and other miscellaneous work.

approaches and ramps, replacement of damaged

Parkway, pavement rehabilitation of bridge

NASA Access Bridge over Baltimore-Washington

Schedule B: Work includes rehabilitation of the

Parkway;

NASA Access Bridge over Baltimore-Washington

Schedule A: Work includes immediate repairs of the

This project consists of the following:

N/A

None

40 (posted)

N/A

50/50

N/A e (max)

C/A

V (mph)

% Truck

D

DHV

Design ADT

ADT (2016)

and Bridges on Federal Highway Projects", FP-14.

"Standard Specifications for Construction of Roads

Tabulation Of Quantities

Erosion & Sediment Control Narrative

A02-A03

A04

C01

M01-M03

R01-R22

S01-S09

B01 Typical Sections

D01 Construction Plan

C02-C05

KEY MAP

STATE OF MARYLAND

SALISBURY

BALTIMORE

CUMBERLAND

FREDERICK

0 4040

SCALE IN MILES

PROJECT MD SP NASA 2(1)

SCALE IN MILES

0 12

N

N/A0511BZ ACP

N/A0511CZ/DZ/Explorer Rd ACP

15'-17'

34'-38'

Know what'sbelow.

before you dig.Call

R

811 or 1-800-257-7777 http://www.missutility.net/

N01 Traffic Control Narrative

N02-N03 Temporary Traffic Control Plan

Striping PlanP01

7+40 to 11+71 0.07*

Schedule Station to Station

B 0511AZ 101+00 to 105+95 0.09

B 0511BZ 201+00 to 209+84 0.17

Length (miles) Lane MilesRoute Number Route Name

0.14*

0.09

0.17

NB B-W Pkwy Off-Ramp to Explorer Rd

NB B-W Pkwy On-Ramp from Explorer Rd

0.040.04

5+50 to 16+64 0.21 0.42

B 0511DZ 301+00 to 304+14 0.06 0.06SB B-W Pkwy Off-Ramp from Explorer Rd

0.96Total 0.75

B 0511CZ SB B-W Pkwy On-Ramp to Explorer Rd 401+00 to 403+28

N

A Explorer Rd Explorer Rd / NASA Access Bridge

B Explorer Rd Explorer Rd

1+00 to 5+50 0.09 0.09B

B 0.090.091+00 to 5+50

SB B-W Pkwy On-Ramp to Explorer Rd

SB B-W Pkwy Off-Ramp from Explorer Rd0511DZ

0511CZ

length only counted once in total.

*This length is in both schedules;

Project MD SP NASA 2(1)

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PROJECT

NUMBER

SHEET

A01

NASA Drwg No. GD-000-42870

MD SP NASA 2(1)

0.00EL.

pavement point of tangent point of spiral to tangent point of spiral to curve point of tangent to spiral point on tangent point on spiral point on curve plate point of intersection point of curve to spiral point of compound curve point of curve original ground outside diameter out to out ordinary high water mark on center nominal maximum size aggregate normal crown north mon.

min.

max.

MP

MOD

ML

monument minimum maximum mile post modification main line spacing, spaces or spaced shoulder section point of spiral to curve seasonal average daily traffic south spa.

shldr.

sec.

SC

SADT

S

NMSA

NC

N

OG

OD

o. to o.

ohwm

o. c.

pvmt.

PT

PST

PSC

PS

POT

POS

POC

pl.

PI

PCS

PCC

PC

rte.

rt. or RT reqd.

reinf.

RECP

rdwy.

R/W

R.

R route right required reinforcement rolled erosion control product roadway right-of-way range radius symmetrical point of spiral to tangent spiral structural stiffener stringer standard station point of spiral to tangent point of spiral to spiral (no curve) point of spiral to reverse spiral square yard square foot sym.

STS

struc.

stiff.

stgr.

std.

Sta.

ST

SS

SRS

sqyd sqft typ.

Ts

TS

thd.

TBM

T.

T typical tangent distance (spiraled curve) point of tangent to spiral thread temporary bench mark township tangent distance

VPI

vph

V vertical point of intersection vehicles per hour design speed

W west

1 6

1 6

SEC.

SEC.

E

N 0

RBAR

NO. DATE BY REVISIONS

OFFICE OF FEDERAL LANDS HIGHWAY

FEDERAL HIGHWAY ADMINISTRATION

U.S. DEPARTMENT OF TRANSPORTATION GODDARD SPACE FLIGHT CENTER

DSY

drwg(s).

dist.

diaph.

diag.

dia.

DHV

D ctrs.

CS

cont.

constr. jt.

conn.

conc.

col.

CO

CMP

CL

cc or c. to c.

brg.

br.

BP

BM

BK

appr.

AMD

AH

ADT

ACP

abut.

double solid yellow drawing(s) distance diaphragm diagonal diameter design hourly volume diameter centers curve to spiral continuous construction joint connection concrete column contracting officer corrugated metal pipe centerline center to center bearing bridge balance point bench mark back approach amendment ahead average daily traffic asphalt concrete pavement abutment expansion joint excavation edge of water equivalent single axle load edge of road equation edge of travel way edge of shoulder edge of pavement embankment elevation elevation with number superelevation rate east flg.

fin.

flange finish exp. jt.

exc.

EW

ESAL

ER

EQ or eq.

EOT

EOS

EOP

emb.

elev.

elev.

e

E θs Ø ∆c spiral central angle diameter curve central angle total central angle ftg.

galv.

ga.

HW

hex.

hdwl.

ID

jt.

footing galvanized gage (gauge) high water hexagon headwall inside diameter joint lat.

lam.

L latitude lamination length of curve

LW

lt. or LT Ls

LPSM

long.

LOD

low water left length of spiral lump sum longitudinal Limits of Disturbance

National Boundary

State Boundary

County Boundary

City Boundary

Township or Range Line

Section Line

Section Corner (Found, Projected)

Section Line4

Section Corner (Found, Projected)4

Section Line16

Section Corner (Found, Projected)16

Property Line w/Found Property Corner

Parcel Number

National Park Boundary

National Forest Boundary

National Wildlife Refuge Boundary

BLM Lands Boundary

Indian Reservation Boundary

Existing Roadway (Road, Paved, Gravel)

Railroad

Trail

Intermittent Drainage or Small Creek

Large Creek or River

Lake, Pond or Reservoir; Marshland

Spring or Seep

Treeline; Individual Trees, Pine

Material Source; Bore Hole; Test Pit

Spot Elevation; Coordinate Grid Tick

Control Point (Terrestrial and GPS); Jump Hub

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SYMBOLS AND ABBREVIATIONS

PROJECT

A02

NASA Drwg No. GD-000-42871

N

AREA PATTERN

STEEL-BACKED TIMBERSBT

BALTIMORE-WASHINGTON PARKWAYB-W

PROJECT SPECIFIC SYMBOLS AND ABBREVIATIONS:

U.S. DEPARTMENT OF TRANSPORTATION GODDARD SPACE FLIGHT CENTER

Fiber Roll or Wattle

North Arrow

Fence

Gate with Fence

Cattleguard

Guardrail

Retaining Wall

Concrete Barrier

Slope Stake Limits

Delineators

Signs (single, double post; portable)

Transition

Toe of Fill

Top of Cut

Pipe Culvert (arrow shows flow)

Pipe Culvert with End Section

Pipe Culvert with Headwall

Underdrain

Pipe Culvert with Drop Inlet

Box Culvert

Underground Utilities

Overhead/Above Ground Utilities

STEAM = steam, T = telephone, TV = CATV, W = water

P = power, SA = sanitary sewer, SD = storm drain, SS = storm sewer, FM = force main, FO = fiber optic, G = gas, IRR = irrigation, O = oil, Light, Support w/Anchor)

Poles (Power, Telephone, Joint Use, Miscellaneous Utility Features

UP = transformer or junction box, WF = water fountain

EM = electric meter, T = telephone pedestal, TV = CATV pedestal, Building

Right-of-Way Line with Monument

Permanent Easement

Construction Easement

Riprap

EXISTING PROPOSED

DI

Pavement Removal / Roadway Obliteration

Full Depth Pavement

Sidewalk Asphalt/Concrete

Mill and Overlay

Overlay

Silt Fence

Diversion Berm

Drainage Divide

Check Dam

Limits of Disturbance

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SYMBOLS AND ABBREVIATIONS

PROJECT

A03

NASA Drwg No. GD-000-42872

FLIGHT CENTER

GODDARD SPACE

NASA

CENTER

VISITOR

N

Closed Roadway

Roadway

Parkway

LEGEND:

y a w kr a P n ot g ni h s a W er o mitl a

Bd n u o b ht u o

S d n u o b htr o N d a o R n oit a vr e s n o

C l i o

S d a o R r e r ol p x E

)391 .t R( d a o R tl e b n e er G

NOTE:

staging areas to their original condition as directed by the CO.

material within existing edge of pavement. Obtain approval from the CO before using this location for staging. Restore interchange ramps within the road closure area as a staging area. Do not cause damage to gate house. Stage and stockpile Use the Explorer Road (up to entrance gate house to Goddard National Space Flight Facility) and Baltimore-Washington Parkway

U.S. DEPARTMENT OF TRANSPORTATION

GODDARD SPACE FLIGHT CENTER

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LOCATION MAP

PROJECT

A04

NASA Drwg No. GD-000- .

42873

Do not disturb existing curb.8.

finished top edge of pavement. Round hinge points as directed by the CO.

inch below the 2 Place 4 inches of topsoil and apply turf establishment. Maintain a final shoulder elevation adjacent to the pavement edge, at7.

replacement. Obtain CO approval for limits of guardrail replacement.

Guardrail is not shown on typical sections. Replace damaged sections of SBT guardrail. Assume 25% of guardrail within project limits requires 6.

percent. The maximum rollover rate between the travel lane and adjacent shoulder is 8 percent.

Recondition shoulders prior to installing guardrail to ensure positive drainage away from the traveled way. The maximum shoulder cross slope is 8 5.

Construct pavement transitions according to Detail E401-01.4.

Construct wedge and leveling course after milling as directed by the CO.3.

Work limits may be changed to fit field conditions as approved or directed by the CO. Obtain CO approval of all work limits before beginning work.2.

Match roadway cross slopes and superelevations to existing field conditions and maintain roadway grades to existing field conditions.1.

NOTES:

/ 0511DZ (SB B-2 Pkwy On Ramp from Explorer Road) 0511CZ (SB B-W Pkwy Off Ramp to Explorer Road)

Sta. 1+00 - Sta. 5+50

PROPOSED PAVEMENT STRUCTURE

15' - 17'

Travel lane

Aggregate base, depth varies

EXISTING PAVEMENT STRUCTURE

Existing ground

V ar ie s

ACP, depth varies

Asphalt pavement milling, 2-inch depth

Asphalt tack coat

ESAL, Type IV Roughness, 2-inch depth

ACP, Gyratory Mix, ½-inch NMSA, 0.3 to < 3 million

2' - 5'

Shoulder

15' - 17'

Travel lane exist.

Match exist.

Match

See Note 7 and turf establishment (typ.)

Lateral pay limit of topsoil

Construction Limits

CL RoadwayCL

3'

Explorer Road

Sta. 13+94 - Sta. 16+64

Existing median

4' +/-

Median

2' - 5'

Shoulder

3'

PROPOSED PAVEMENT STRUCTURE

Aggregate base, depth varies

EXISTING PAVEMENT STRUCTURE

Existing ground

V ar ie s

ACP, depth varies

Asphalt pavement milling, 2-inch depth

Asphalt tack coat

ESAL, Type IV Roughness, 2-inch depth

ACP, Gyratory Mix, ½-inch NMSA, 0.3 to < 3 million

2' - 5'

Shoulder

15'-17'

Travel lane exist.

Match

See Note 7 and turf establishment (typ.)

Lateral pay limit of topsoil

3'

0511AZ (NB B-W Pkwy Off Ramp to Explorer Road)

Sta. 101+00 - Sta. 105+95

2' - 5'

Shoulder

3'

CL

Roadway

0511BZ (NB B-W Pkwy On Ramp from Explorer Road)

Sta. 201+00 - Sta. 209+54

/ 0511DZ (SB B-2 Pkwy On Ramp from Explorer Road) 0511CZ (SB B-W Pkwy Off Ramp to Explorer Road)

Sta. 5+50 - Sta. 7+40

PROPOSED PAVEMENT STRUCTURE

17' - 19'

Travel lane

Aggregate base, depth varies

EXISTING PAVEMENT STRUCTURE

Existing ground

V ar ie

ESAL, Type IV Roughness, 2-inch depth

ACP, Gyratory Mix, ½-inch NMSA, 0.3 to < 3 million

2' - 5'

Shoulder

17' - 19'

Travel lane exist.

Match exist.

Match

See Note 7 and turf establishment (typ.)

Lateral pay limit of topsoil

Construction Limits

CL RoadwayCL

3'

Explorer Road

Sta. 11+71 - Sta. 13+94

2' - 5'

Shoulder

3'

GUARDRAIL

DETAIL A

Proposed pavement structure

Recondition shoulder, see Note 5

8% max various locations, see Notes 5 and 6

Proposed SBT guardrail type B, 3'-0"+/-

Shoulder

624 and 625 (typ.)

disturbed areas in accordance with Sections Place 4-inch depth topsoil and establish turf on

624 and 625 (typ.)

disturbed areas in accordance with Sections Place 4-inch depth topsoil and establish turf on

624 and 625 (typ.)

disturbed areas in accordance with Sections Place 4-inch depth topsoil and establish turf on

624 and 625 (typ.)

disturbed areas in accordance with Sections Place 4-inch depth topsoil and establish turf on

PROPOSED PAVEMENT STRUCTURE

Aggregate base, depth varies

EXISTING PAVEMENT STRUCTURE

Existing ground

V ar ie

ESAL, Type IV Roughness, 2-inch depth

ACP, Gyratory Mix, ½-inch NMSA, 0.3 to < 3 million

2' - 5'

Shoulder

15'-17'

Travel lane exist.

Match

See Note 7 and turf establishment (typ.)

Lateral pay limit of topsoil

3'

0511CZ (SB B-W Pkwy Off Ramp to Explorer Road)

Sta. 401+00 - Sta. 403+28

2' - 5'

Shoulder

3'

CL

Roadway

0511DZ (SB B-2 Pkwy On Ramp from Explorer Road)

Sta. 301+00 - Sta. 303+60

See Note 8 (typ.)

NO SCALE

SCHEDULE B

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TYPICAL SECTIONS

PROJECT

B01

NASA Drwg. No. GD-000-42874

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TABULATION OF QUANTITIES

PROJECT

C01

NASA Drwg. No. GD-000-42875

Assume 15% of guardrail within project limits requires replacement. Obtain CO approval for limits of guardrail replacement.

NOTE:

U.S. DEPARTMENT OF TRANSPORTATION

PAVEMENT AND SHOULDER, BARRIER, AND

CLEARING AND REMOVALS SUMMARIES

GODDARD SPACE FLIGHT CENTER

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SUMMARIES AND SCHEDULES

PROJECT

C02

42876

PAVEMENT MARKING SUMMARY

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SUMMARIES AND SCHEDULES

PROJECT

C03

42877 prior to installation.

approval from the CO for sign location traffic control devices. Obtain for approximate location of temporary

See Temporary Traffic Control Plan 4.

sign dimensions, legend and colors.

"Standard Highway Signs" manual for

See the latest edition of the 3.

according to Section 635.

Provide aluminum sign panels 2.

Control Devices".

the "Manual on Uniform Traffic accordance with the latest edition of

Install signs and supports in 1.

NOTES:

CONSTRUCTION SIGN SUMMARY

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SUMMARIES AND SCHEDULES

PROJECT

C04

42878 prior to installation.

approval from the CO for sign location control devices. Obtain approximate location of temporary traffic

See Temporary Traffic Control Plan for 4.

dimensions, legend and colors.

Highway Signs" manual for sign

See the latest edition of the "Standard 3.

to Section 635.

Provide aluminum sign panels according 2.

Uniform Traffic Control Devices".

with the latest edition of the "Manual on

Install signs and supports in accordance 1.

NOTES:

CONSTRUCTION SIGN SUMMARY

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SUMMARIES AND SCHEDULES

PROJECT

C05

42879 roadway

Remove fallen trees and associated debris from and NB B-W Pkwy on-ramp from Explorer Rd;

NB B-W Pkwy off-ramp to Explorer Rd, Mill and overlay bridge approach, Explorer Road dR rer olpxE ot pmar-ffo ywkP W-B BN

N B B

W P k w y o n r a m p fr o m E x p lo r e r R d dR re rolpxE morf pmar-no ywkP

W-B BS

dR re rolpx

E ot pmar-ffo ywkP W-B B

S

N B B

W P k w y

S B B

W P k w y purposes and are for information only.

Alignments and stationing shown for estimating 4.

locations with the CO.

northwest corner of bridge, as needed. Confirm final

3. Perform joint sealing on concrete drainage ditch on

7+40 and 11+71.

2. Mill and overlay limit is at the bridge joint, Stations property. Saw cut at the gore.

1. Mill and overlay limit on National Park Service

NOTES:

See Note 1

See Note 1

Mill and overlay to the nose of the median

See Note 2

See Note 2

STATION 101+00

BEGIN WORK

STATION 201+00

BEGIN WORK

STATION 16+64

END WORK

STATION 209+84

END WORK

STATION 105+95

END WORK

STATION 304+14

BEGIN WORK

and SB B-W Pkwy on-ramp from Explorer Rd

SB B-W Pkwy off-ramp to Explorer Rd, Mill and overlay bridge approach, STATION 401+00

BEGIN WORK

See Note 3

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CONSTRUCTION PLAN

PROJECT

D01

NASA Drwg. No. GD-000-42880

Response Center at 1-800-424-8802 requirements under 40 CFR 112. Report spills large enough to discharge to surface waters to the National

Develop and implement a Spill Prevention Control and Countermeasures (SPCC) plan following the material according to Federal, State, and local regulations.

waste materials. Do not dispose of hazardous water materials into the on-site dumpsters. Dispose of containers away from other non-avoid contact with storm water. Store all hazardous waste materials in appropriate and clearly marked like motor oil, diesel, gasoline, and battery fluid. If feasible, conduct these activities in a covered area to removal instructions. Equipment fueling and maintenance could generate spills, leaks, and hazardous wastes health protection plan (including decontamination facilities). Refer to Section 534 for hazardous waste preparation debris, dispposal of surface preparation debris (hazardous and contaminated), and a worker

This work consists of removing and applying paint including the containment and collection of surface

Collect and store all waste in dumpsters, or in metal or plastic drums, as appropriate.

Solid waste generated from the project will consist of construction debris, garbage, and empty containers.

contamination from fuels, lubricants, hydraulic fluids, or other toxic materials.

Inspect and maintain on a regular basis, all mechanized equipment used in or near surface water to prevent

Waste, garbage, sanitary waste

Soaps, solvents used for vehicle washing

Fuels, oils, equipment-related compounds

Wash-water from concrete, paint, curing compounds, and other construction materials

The following discharges are prohibited:

Prohibited Discharges area totals less than 1,000 sqft.

miscellaneous work. The project also includes replacing damaged sections of guardrail. The disturbed

Washington Parkway, pavement rehabilitation of bridge approaches and interchange ramps, and other

This project consists of immediate repairs and rehabilitation of the NASA Access Bridge over Baltimore-

Project Description be stablized the same day.

The only disturbance for this project will be the removal and replacement of guardrail. Any disturbance should

Road. No construction access will be permitted through a wetland or waterway.

Construction access to the project will be through the Baltimore-Washington Parkway off-ramps to Explorer prior approval from the Contracting Officer (CO).

Special Contract Requirements. Do not modify the type, size, or location of any control or practice without

Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-14, and the waters. The measures consist of soil erosion control measures which are also defined and outlined in the minimize the sedimentation of rivers, streams, and impoundments such as lakes, reservoirs, bays, and coastal sediment. The work consists of applying measures throughout the life of the project to control erosion and to

The Erosion & Sediment Control Narrative is meant as a guideline for preventing erosion and controlling

General Guidelines

4. Replace guardrail as shown in the plans.

the disturbed sediment does not leave the project site.

Administration (WMA) Inspector. With WMA Inspector approval, construct perimeter controls to ensure that

3. Prior to any clearing, grubbing and excavation, obtain the permission of the Water Management pre-construction meeting.

2. Clearly identify in the field the limit of disturbance and all sensitive areas not to be disturbed prior to the

(unless waived by the administration) minimum of seven (7) days prior to any earth disturbance in order to schedule a pre-construction meeting

1. Contact the Maryland Department of Environment (MDE) Compliance Program at 410-537-3510 a

General sequence of construction:

Sequence of Construction

Record the inspection date and summary of findings within 24 hours of completing a site inspection.

a rain event. Repair and replace any damaged measures by the end of the day.

Inspect and maintain erosion control facilities daily during construction activates and immediately following according to Section 157, the details shown in the plans, and the individual permitting requirements.

Unless stated otherwise, construct and maintain all vegetated and structural erosion control practices

Maintenance and Inspection Procedures

7. Stabilize areas disturbed by removal of sediment controls.

vegetation is well established.

after all upslope areas are stabilized and any erosion and sediment controls6. With MDE approval, remove

-Inspect, clean and repair all culvert outlet protection, riprap basins, and stabilized channels.

where vegetation is yet to be established.

-Where necessary, replace eroded topsoil and re-apply permanent turf establishment to disturbed areas

-Finish grading and apply permanent turf establishment to any remaining disturbed areas.

5. Final Grading

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CONTROL NARRATIVE

EROSION AND SEDIMENT

PROJECT

M01

NASA Drwg. No. GD-000-42881

STANDARD EROSION AND SEDIMENT CONTROL NOTES

Water Management Administration

Maryland Department of the Environment not under active grading.

B. Seven (7) calendar days as to all other disturbed or graded areas on the project site

(3:1); and ditches, perimeter slopes, and all slopes steeper than 3 horizontal to 1 vertical

A. Three (3) calendar days as to the surface of all perimeter controls, dikes, swales, shall be completed within;

12. Following initial soil disturbance or re-disturbance, permanent or temporary stabilization of dust particles and/or prevent dust from blowing off-site to areas without treatment.

11. Construction activities producing dust shall implement control measures to avoid the suspension equipment is rinsed or cleaned on-site.

10. Concrete washout structures shall be used when concrete trucks, drums, pumps, chutes, or other ot to stable ground surface.

practice or pumped to a sediment trap or basin prior to discharge to a funtional storm drain system

9. All water removed from excavated areas shall be passed through an MDE approved dewatering each working day. No more trench shall be opened than can be completed the same day.

B. Trenches for utility installation shall be backfilled, compacted, and stabilized at the end of

A. Excavated trench material shall be placed on the high side of the trench.

day stabilization is approved:

disturbance. Call “Miss Utility” at 1-800-257-7777 48 hours prior to the start of work. When same approved plans. Utility construction shall only be for areas within the delineated limit of Erosion and sediment control for utility construction shall be provided in accordance with 8.

permission from the MDE inspector.

all erosion and sediment control measures until such times as they are removed with prior

7. The contractor shall inspect daily and maintain continuously in an effective operating condition removed immediately.

deposition of materials onto public roads. All materials deposited onto public roads shall be

6. The contractor shall protect all points of construction ingress and egress to prevent the deemed necessary.

5. The MDE inspector has the option of requiring additional safety or sediment control measures, if

Plan and / or Sequence of Construction.

shall obtain prior agency and MDE approval for modifications to the Erosion and Sediment Control erosion or sediment control measure without prior permission from MDE inspector. The contractor runoff from disturbed areas is directed to the sediment control devices and shall not remove any made in the field with the approval of the MDE Inspector. The contractor shall ensure that all beginning any other land disturbances. Minor sediment control device location adjustments may be and construction sequence and shall have them inspected and approved by the MDE inspector prior to

4. The contractor shall construct all erosion and sediment control measures per the approved plan agency responsible for project.

reports shall be available at the site for inspection by duly authorized officials of MDE and the

3. The plan approval letter, approved Erosion and Sediment Control Plans, daily log books, and test

F. Prior to final acceptance.

E. Prior to removal of all sediment control devices.

D. Prior to removal or modification of any sediment control structure(s).

Notification prior to commencing construction of each step is mandatory.

management structures) at the required inspection points (see Inspection Checklist on plan).

C. During the installation of sediment basins (to be converted into permanent stormwater B. Following installation of sediment control measures.

A.The required pre-construction meeting.

The contractor shall notify MDE in writing and by telephone at the following points: 2.

between project representatives and a representative of MDE.

disturbing activity and, unless waived by MDE, shall be required to hold a pre-construction meeting

1. The contractor shall notify the MDE at (410) 537-3510 seven (7) days before commencing any land applicant's contractor.

individual note not applicable to the subject project is not binding upon the applicant or the plan. It is recognized that every note may not apply to all projects. The requirement of any MDE requires that these notes, in their entirety, be included on the erosion and sediment control 13. Vegetative stabilization shall be performed in accordance with the 2011 Maryland Standards and

Specifications for Soil Erosion and Sediment Control. Refer to appropriate specifications for temporary seeding, permanent seeding, mulching, sodding, and ground covers.

14. When seeding, all disturbed areas with slopes flatter than 2:1 shall be stabilized with 4 inches of topsoil, seed, and mulch. All disturbed areas with slopes 2:1 or steeper shall be stabilized with matting over 2 inches of topsoil and seed.

15. All sediment basins, trap embankments and slopes, perimeter dikes, swales and all disturbed slopes steeper or equal to 3:1 shall be stabilized with seed and anchored straw mulch, sod, or other approved stabilization measures, as soon as possible but no later than three (3) calendar days after establishment. All areas disturbed outside of the perimeter sediment control system shall be minimized. Maintenance shall be performed as necessary to ensure continued stabilization.

16. Permanent swales or other points of concentrated water flow shall be stabilized with seed and an approved erosion control matting, sod, rip-rap, or other approved stabilization measures.

17. For stockpile slopes steeper than 3 horizontal to 1 vertical (3:1), the contractor shall apply seed and anchored straw mulch, sod, or other approved stabilization measures to the face of the stockpile within three (3) calendar days of activity having ceased on the respective face. For slopes 3:1 or flatter, the contractor shall apply stabilization measures to the face of the stockpile within seven (7) calendar days of activity having ceased on the respective face.

Maintenance shall be performed as necessary to ensure continued stabilization.

18. For finished grading, the contractor shall provide adequate gradients to prevent water from ponding for more than twenty-four (24) hours after the end of a rainfall event. Drainage courses and swale flow areas may take as long as forty-eight (48) hours after the end of a rainfall event to drain. Areas designed to have standing water shall not be required to meet this requirement.

19. Where deemed appropriate by the engineer or inspector, sediment basins and traps may need to be surrounded with an approved safety fence. The fence must conform to local ordinances and regulations. The developer or owner shall check with local building officials on applicable safety requirements. Where safety fence is deemed appropriate and local ordinances do not specify fencing sizes and types, the following shall be used as a minimum standard: The safety fence shall be made of welded wire and at least 42 inches high, have posts spaced no farther apart than 8 feet, have mesh openings no greater than 2 inches in width and 4 inches in height with a minimum of 14 gauge wire. Safety fence shall be maintained and in good condition at all times.

20. All sediment trap depth dimensions are relative to the outlet elevation. All traps shall have a stable outfall. All traps and basins shall have stable inflow points.

21. Sediment shall be removed and the trap or basin restored to its original dimensions when the sediment has accumulated to one quarter of the total depth of the trap or basin. Total depth shall be measured from the trap or basin bottom to the crest of the outlet.

22. Sediment removed from traps (and basins) shall be placed and stabilized in approved areas, but not within a floodplain, wetland or tree-save area. When pumping sediment laden water, the discharge shall be directed to an MDE approved sediment trapping device prior to release from the site. A sump pit may be used if sediment traps themselves are being pumped out.

23. Prior to removal of sediment control measures, the contractor shall stabilize and have established permanent stabilization for all contributory disturbed areas using sod or an approved permanent seed mixture with required soil amendments and an approved anchored mulch. Wood fiber mulch may only be used in seeding season where the slope does not exceed 10% and grading has been done to promote sheet flow drainage. Areas brought to finished grade during the seeding season shall be permanently stabilized as soon as possible, but not later than three (3) calendar days after establishment for slopes steeper than 3 horizontal to 1 vertical (3:1) and seven (7) calendar days for flatter slopes. When property is brought to finished grade during the months of November through February, and permanent stabilization is found to be impractical, temporary seed and anchored straw mulch shall be applied to disturbed areas.

The final permanent stabilization of such property shall be applied by March 15 or earlier if ground and weather conditions allow.

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EROSION AND SEDIMENT

PROJECT

M02

NASA Drwg. No. GD-000-42882

DATE

OWNER'S/DEVELOPER'S CERTIFICATION

(Continued)

STANDARD EROSION AND SEDIMENT CONTROL NOTES

Water Management Administration

Maryland Department of the Environment

STANDARD STABILIZATON NOTE

ACCORDANCE WITH APPROVED PLANS.

I/WE HEREBY CERTIFY THAT STORMWATER MANAGEMENT FACILITIES WILL BE MAINTAINED IN

ENFORCEMENT AUTHORITY OR THE STATE OF MARYLAND, DEPARTMENT OF THE ENVIRONMENT.

RIGHT OF ENTRY FOR PERIODIC ON-SITE EVALUATION BY APPROPRIATE INSPECTION AND

EROSION AND SEDIMENT BEFORE BEGINNING THE PROJECT. I/WE HEREBY AUTHORIZE THE

DEPARTMENT OF THE ENVIRONMENT APPROVED TRAINING PROGRAM FOR THE CONTROL OF

IN THE CONSTRUCTION PROJECT WILL HAVE A CERTIFICATE OF ATTENDANCE AT A MARYLAND

WILL BE DONE PURSUANT TO THIS PLAN AND THAT ANY RESPONSIBLE PERSONNEL INVOLVED

I/WE HEREBY CERTIFY THAT ALL CLEARING, GRADING, CONSTRUCTION AND/OR DEVELOPMENT

OWNER/DEVELOPER SIGNATURE

PRINT NAME AND TITLERESPONSIBLE PERSONNEL CERTIFICATION NO.

DATE DESIGNER'S SIGNATURE

DESIGN CERTIFICATION

RESPECTIVELY.

26.17.02 FOR EROSION AND SEDIMENT CONTROL AND STOMWATER MANAGEMENT,

4-201 AND 215, AND THE CODE OF MARYLAND REGULATIONS (COMAR) 26.17.01 AND COMAR

SUPPLEMENTS, THE ENVIRONMENT ARTICLE SECTIONS 4-101 THROUGH 116 AND SECTIONS

THE 2000 MARYLAND STORMWATER DESIGN MANUAL, VOLUMES I & II INCLUDING

MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL,

I HEREBY CERTIFY THAT THIS PLAN HAS BEEN DESIGNED IN ACCORDANCE WITH THE 2011

PRINTED NAME

MD. REGISTRATION NO.

P.E., R.L.S., RLA, OR R.A. (CIRCLE ONE)

D. Off-Site Waste / Borrow Area Location: N/A

C. Total Fill: 0 Cubic Yard

B. Total Cut: 0 Cubic Yard

A. Area Disturbed: 1,410 Square Feet = 52.22 Square Yards

26. Site Information:

measures and stabilized.

local authorities. All waste and borrow areas off-site shall be protected by sediment control and other applicable State, federal, and local agencies; otherwise approval shall be granted by the

25. Off-site spoil or borrow areas on State or federal property shall have prior approval by MDE to the permanent configuration within this time period as well.

removal. Stormwater management structures used temporarily for sediment control shall be converted removal shall be stabilized with topsoil, seed, and mulch, or as specified, within 24 hours of said contributory drainage areas. Upon removal of sediment control devices, the area disturbed by within thirty (30) calendar days following establishment of permanent stabilization in all

24. Temporary sediment control devices shall be removed with permission of the MDE inspector disturbed or graded areas on the project site not under active grading.

steeper than 3 horizontal to 1 vertical (3:1); and seven (7) days as to all other of all perimeter controls, dikes, swales, ditches, perimeter slopes, and all slopes stabilization shall be completed within three (3) calendar days as to the surface

Following initial soil disturbance or redisturbance, permanent or temporary

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William Topper, Civil EngineerRPC010566

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EROSION AND SEDIMENT

PROJECT

M03

NASA Drwg. No. GD-000-42883

d) Baltimore-Washington southbound on-ramp from Explorer Road.

c) Baltimore-Washington southbound off-ramp to Explorer Road;

b) Baltimore-Washington northbound on-ramp from Explorer Road;

a) Baltimore-Washington northbound off-ramp to Explorer Road;

closed to public traffic during the entirety of the construction operations.

7. The NASA Access Bridge, Explorer Road bridge approach, and the associated ramps listed below are closed and will remain stockpiled materials approved by the CO will be permitted for use.

topsoil, and other loose materials will be permitted in areas where the roadway profile grade is no more than 4 percent. Only the road closure area for staging or stockpiling. Stockpiling of aggregates, excavation material, asphalt concrete millings, interchange ramps within the road closure area. Obtain approval from the CO at least 10 days before closing any area outside

6. Stage or stockpile material within existing edge of pavement of the Explorer Road and Baltimore-Washington Parkway signs.

of portable changeable message signs 24 hours a day, including inputting or changing sign message and general maintenance of

CO. Coordinate with the CO to input and change message(s) on portable changeable message signs. Ensure proper operation

5. Place post-mounted advance warning signs and portable changeable message signs at locations shown or as directed by the the planned work.

Contractor finds it necessary to work on one of these restricted days, request approval from the CO at least 7 days before

Note: Construction operations performed under road closure are not subject to the work restrictions listed above. If the of 9:00 pm. to 5:00 a.m., Sunday through Thursday

d) No work will be permitted along State maintained roadways at the Baltimore-Washington Parkway interchanges outside stadiums, colleges, casinos, fields, and arenas for their schedules of events, and submit to the CO;

c) No work will be permitted on days with special events occuring in the vicinity, as determined by the CO. Contact local

b) No work will be permitted the day before or the day after a National legal holiday;

a) No work will be permitted on Sundays or National legal holidays;

4. Construction operations are limited as follows, unless performed under closed roadway (as stated on the Location Map):

3. Contractor employee's personal vehicles are not permitted to park along Baltimore-Washington Parkway roadway shoulders.

2. Cover all conflicting signs during construction operations.

c) Remove temporary traffic control devices upon contract completion or when directed otherwise by the CO.

E635-B, and E635-01.

the completion of all construction activities. Install additional devices for lane closures according to Details E635-A,

b) Install temporary traffic control devices for advanced signing prior to beginning the project and maintain devices through

a) Obtain approval from the CO for location and spacing of temporary traffic control devices.

Section 635, and the latest edition of the MUTCD.

1. Provide and maintain temporary traffic control devices for the duration of the project in accordance with Section 156, GENERAL NOTES:

2. Do not place the final lift of asphalt concrete pavement and permanent pavement markings at night.

b) Nighttime hours are defined as beginning at 9:00 p.m. and ending at 5:00 a.m. the following day.

a) Submit lighting plan according to Subsection 156.08.

1. Nighttime operations are permitted upon approval by the CO.

NIGHTTIME OPERATIONS:

Do not install traffic control devices for full roadway closures outside of nighttime hours.3.

b) Phase 2, Baltimore-Washington Parkway (southbound) from MD 212 (Powder Mill Road) to MD 193 (Greenbelt Road)

a) Phase 1, Baltimore-Washington Parkway (northbound) from MD 193 (Greenbelt Road) to MD 212 (Powder Mill Road)

2. Perform road closures in two phases as follows:

approved otherwise by the CO.

later than 5:00 a.m. for each phase. If construction activities are completed before this time, re-open the roadway unless

e) Complete all construction activities, remove temporary traffic control devices, and open the roadway to public traffic no

d) Accommodate emergency vehicle (i.e., police, fire, ambulance, etc.) access through the work site; and

Thursday for the duration of the closure.

c) Construction operations, unless otherwise noted, are permitted only from 9:00 p.m. to 5:00 a.m., Sunday through

b) Close the road no earlier than 9:00 p.m. for each phase.

Advanced Signing and Closure Plan.

Control a) Install temporary traffic control devices in preparation for a full road closure according to the Temporary Traffic

1. Setup and maintain a full road closure as follows:

BALTIMORE-WASHINGTON PARKWAY ROAD CLOSURES:

b) Evenings from 2:30 p.m. to 7:30 p.m., Monday through Friday

a) Mornings from 5:00 a.m. to 9:30 a.m., Monday through Friday

Rush hours are defines as:

applicable traffic control devices from the roadway and install the necessary traffic control devices to safely maintain traffic.

Do not install traffic control devices during the rush hours. Before rush hours begin, remove materials, equipment, and non-3.

2. Construction operations are not permitted on Sundays and nighttime hours as defined in Subsection 108.01(e).

d) During periods of inactivity, re-open the roadway to one-way, two lane traffic unless approved otherwise by the CO.

c) Limit construction-caused delays to public traffic to a maximum of 15 minutes per passage through the project.

b) The maximum length of a lane closure is 1.5 miles for all activities on Baltimore-Washington Parkway.

a) A maximum of one single lane temporary closure is permitted at any one time.

1. Maintain one-way, one lane of traffic according to Detail E635-A through active construction zones.

Setup and maintain single lane closures for construction operations that occur outside a road closure as follows:

BALTIMORE-WASHINGTON PARKWAY LANE CLOSURES:

In addition to the requirements under General Notes, meet the following:

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TEMPORARY TRAFFIC CONTROL

PROJECT

N01

NASA Drwg. No. GD-000-42884

PCMS

Channelizing device, drum

Traffic flow direction

Type 3 barricade

Portable changeable message sign

Construction sign, post mounted

LEGEND:

Only one closure phase is permitted at any one time.

from Powder Mill Rd to MD 193 (Greenbelt Rd)

b) Phase 2, SB B-W Pkwy from MD 193 (Greenbelt Rd) to Powder Mill Rd

a) Phase 1, NB B-W Pkwy

3. Perform road closures in two phases as follows:

and spacing of temporary traffic control devices.

2. Space signs at intervals of 500 feet minimum when possible. Obtain approval from the CO for the final location maintain devices through the completion of all work or as directed by the CO.

1. Install temporary traffic control devices for advanced signing prior to beginning construction activities and

NOTES:

PCMS

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S B B

W P k w y N

B B

W P k w y d R n oit a v r e s n o

C li o

S dR rerolpxE dR tlebneerG

4- I

D

M

391 DM

INSET A

M6-2RM4-8

DETOUR

M6-1L

M6-3

M5-2R

Special signSpecial sign

B-W Pkwy

Baltimore

M4-8a

END

DETOUR

ORTHN

M3-1

M5-1L

1 7

M5-1R

M6-1R

INSET B

(see Inset B this sheet)

NB B-W Pkwy On Ramp, (see Inset A this sheet)

NB B-W Pkwy Off Ramp, PCMS

(During closure)

NEXT 3.5 MI

CLOSED

NB BW PKWY

DETOUR

SIGNS FOR

FOLLOW

meet project limits and field conditions as approved by the CO.

5. Adjust the location of temporary traffic control devices to closed at all times during road closure period.

gates where shown to supplement barricades. Keep gates respectively. Use existing gates and install temporary metal two Type B warning lights on the right and left barricade, outside existing gate facing traffic. Mount signs 5 and 6 with

4. Setup road closure by staggering two Type 3 barricades dR lli M red woP

C o n s e r v a tio n R d

S o il

P k w y

N B B

W

P k w y

S B B

W

Mill Rd Powder

Pk wyNB B

-WSB B

-W Pk wy

Ridge Rd ya whtuoS

Rd

Greenbelt d R eg di

R y a whtuoS

P C

M S

P C

M S

Work area

48" x 30"

R11-2 (Modified)

ROAD

CLOSED

Mount on Type 3 Barricade

ADVANCED SIGNING AND CLOSURE PLANNO SCALE

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TEMPORARY TRAFFIC CONTROL

PROJECT

N02

NASA Drwg. No. GD-000-42885

M6-2RM4-8

DETOUR

M6-1L

M6-3

M5-2R

Special signSpecial sign

B-W Pkwy

Washington

M4-8a

END

DETOUR

M3-3

M5-1L

M5-1R

M6-1R

PCMS

(During closure)

NEXT 3.5 MI

CLOSED

SB BW PKWY

DETOUR

SIGNS FOR

FOLLOW

INSET A

PCMS

this sheet

See Inset B

INSET B

(see Inset A this sheet)

SB B-W Pkwy Off Ramp, OUTHS

5. Adjust the location of temporary traffic control devices to meet project limits and field conditions as approved by the CO.

shown to supplement barricades. Keep gates closed at all times during road closure period.

Type B warning lights on the right and left barricade, respectively. Use existing gates and install temporary metal gates where

4. Setup road closure by staggering two Type 3 barricades outside existing gate facing traffic. Mount signs 5 and 6 with two

Only one closure phase is permitted at any one time.

b) Phase 2, SB B-W Pkwy from Powder Mill Rd to MD 193 (Greenbelt Rd)

a) Phase 1, NB B-W Pkwy from MD 193 (Greenbelt Rd) to Powder Mill Rd

3. Perform road closures in two phases as follows:

of temporary traffic control devices.

2. Space signs at intervals of 500 feet minimum when possible. Obtain approval from the CO for the final location and spacing through the completion of all work or as directed by the CO.

1. Install temporary traffic control devices for advanced signing prior to beginning construction activities and maintain devices

NOTES:

dR lli M red woP

E x p lo r e r R d

S B B

W P k w y N

B B

W P k w y

391 DM

Greenbelt Rd

R e s e a r c h R d d R eg di

R y a whtuoS

P k w y

N B B

W

P k w y

S B B

W

Powder Mil l Rd

C o n s e r v a tio n R d

S o il

Work area

PC

M

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PCMS

LEGEND:

Channelizing device, drum

Traffic flow direction

Type 3 barricade

Portable changeable message sign

Construction sign, post mounted

48" x 30"

R11-2 (Modified)

ROAD

CLOSED

Mount on Type 3 Barricade

M D

Sun nys ide

Ave

Ivy Ln

Crescen t Rd

I-4

R d C d R n oit a v r e s n o

C li o

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NASA Drwg. No. GD-000-42886

Explorer Road dR rer olpxE ot pmar-ffo ywkP W-B BN

N B B

W P k w y o n r a m p fr o m E x p lo r e r R d dR re rolpxE morf pmar-no ywkP

W-B BS

dR re rolpx

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S

N B B

W P k w y

S B B

W P k w y

Sta. 401+00 - 403+28

4" SSW, Type D;

See Note 1

Sta. 1+00 - 5+50

4" SSW, Type D;

Sta. 401+00 - 401+45

8" SSW, Type D;

Sta. 401+45 - 403+28

4" SSY, Type D;

Sta. 301+00 - 303+60

4" SSY, Type D;

Sta. 301+00 - 304+14

4" SSW, Type D;

Sta. 1+00 - 5+50

4" SSW, Type D;

Sta. 1+00 - 5+50

4" SSY, Type D;

Sta. 1+00 - 5+50

4" SSY, Type D;

Sta. 5+50 - 14+00

4" DSY, Type D;

Sta. 7+40 - 11+71

4" SSW, Type D;

Sta. 5+50 - 7+40

Taper from 15' lane to 12' lane

4" SSW, Type D;

Sta. 5+50 - 7+40

Taper from 15' lane to 12' lane

4" SSW, Type D;

Sta. 11+71 - 13+00

Taper from 12' lane to 14' lane

4" SSW, Type D;

Sta. 11+71 - 13+00

Taper from 12' lane to 15' lane

4" SSW, Type D;

Sta. 201+00 - 209+84

4" SSW, Type D;

Sta. 202+43 - 209+84

4" SSY, Type D;

Sta. 201+00 - 202+43

8" SSW, Type D;

Sta. 15+25 - 16+64

8" SSW, Type D;

Sta. 13+00 - 16+00

4" SSW, Type D;

Sta. 16+00 - 16+64

8" SSW, Type D;

Sta. 105+60 - 105+95

8" SSW, Type D;

Sta. 101+00 - 105+95

4" SSW, Type D;

Sta. 101+00 - 101+60

8" SSW, Type D;

Sta. 14+00 - 16+64

4" SSY, Type D;

SSY = Single solid yellow pavement marking

SSW = Single solid white pavement marking

DSY = Double solid yellow pavement marking

LEGEND:

'5

15'

15'

15'

1'

1'

15'

Sta. 303+60 - 304+14

8" SSW, Type D;

Sta. 101+60 - 105+60

4" SSY, Type D;

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R01

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REVISIONSNO. DATE BYNO. DATE BY REVISIONS

GENERAL NOTES AND INDEX

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GENERAL NOTES:

Design:

AASHTO LRFD Bridge Design Specifications, 9 Edition, 2020

SPECIFICATIONS:

Dead Load:

Steel: 490 pcf

Lightweight Concrete: 115 pcf

Concrete: 150 pcf

DESIGN LOADS:

Field welding of any kind is not permitted on beams.

Magnetic particle testing (MT.) - 10% min.

Fillet welds - Visual - 100%

Perform non-destructive testing of welds as follows:

electrodes classified E7028.

Welding Code. Perform Shielded Metal Arc Welding (SMAW) using low hydrogen

Perform all welding in accordance with the current AASHTO/AWS D1.5 Bridge

Welding:

HS-20 Truck Load

Live Loads:

Cast-in-place Concrete:

inch unless noted otherwise. -4 exposed edges of concrete f'c=3,000 psi at 48-hours and minimum compressive strength f'c=5,000 psi at 28 days. Chamfer all

Furnish Class HES concrete for pier pedestals and deck repairs with minimum compressive strength

MATERIALS:

Field verify all demensions and work locations prior to ordering materials.

Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-14.

Construction:

NO SCALE

INDEX OF BRIDGE PLAN SHEETS

Typical Bar Bends - 2

Typical Bar Bends - 1

Epoxy Coated Reinforcement Steel Bar List

Miscellaneous Details

Expansion Joint Detail

Bridge Railing Detail

Bearing Detail

Exterior Girder Detail - Span 2

Framing Plan

Deck Reinforcement Detail - Span 2

Typical Section

Concrete Repair Detail

Pier 5 Concrete Repair

Pier 4 Concrete Repair

Pier 3 Concrete Repair

Pier 2 Concrete Repair - 2

Pier 2 Concrete Repair - 1

Pier 1 Concrete Repar

Abutment "B" Concrete Repair

Abutment "A" Concrete Repair

Plan and Elevation

General Notes and Index

SHEET NO. SHEET TITLE

Cast-in-place Lightweight Concrete:

inch unless noted otherwise.-4 ASTM C567. Chamfer all exposed edges of all concrete conforming to AASHTO M 195. Do not exceed LWC equilibrium density of 110 pcf as determined by with a minimum compressive strength f'c=5,000 psi at 28 days. Furnish lightweight coarse aggregate

Furnish Class LWT-D(AE) Concrete for repairs to expansion joints, span 2 deck, curbs, and parapets

Method "A" used for elastomeric pad design.

hardness. Furnish steel shim plates that conform to ASTM A36 or ASTM A1011. AASHTO LRFD Design

Furnish steel reinforced elastomeric bearing pad that conform to AASHTO M 251 with 60 Durometer

Bearing:

sealant.

5. Seal span 2 concrete parapet interior faces with a silicone-based acrylic and anti-graffiti pedestals.

bearing pads. Locate and repair all deteriorated concrete on the pier's exterior

4. Remove and replace exterior bearings for span 2 with steel reinforced elastomeric connected to exterior girders over span 2.

3. Remove and replace exterior girders, x-bracing, and intermedate diaphragms lightweight concrete and epoxy coated reinforcement.

2. Remove and replace reinforced concrete deck, curbs, and parapets in Span 2 with

1. Remove and reset span 2 aluminum railing.

Schedule A:

SCOPE OF WORK:

36306.

Furnish a 3-coat paint system according to Subsection 563.09. Furnish top coat to match federal color

Paint:

impact.

deflection in front of the temporary support system to protect it from vehicular concrete repairs according to Section 562. Place TL-3 concrete barrier with zero

Design and place temporary works support system for bearing replacement and

Reinforcing Steel:

conforming to ASTM A775.

reinforcing steel unless otherwise noted. Furnish epoxy coating for all superstructure bridge elements

Furnish reinforcing steel conforming to AASHTO M 31, Grade 60 deformed. Provide 2-inch cover for clearance. Remove the signs when the original clearance is restored.

portion of the containment system. Furnish and erect signs indicating the exact vertical shoulders during construction. Do not encroach on the vertical clearance with any

Maintain a minimum vertical clearance of 12'-6" over the B-W Pkwy roadway and otherwise noted. Furnish weld shear connections that confrom to AASHTO M 169 .

-inch dia. fasteners conforming to ASTM F 3125, Grade A 325, Type 3, Heavy Hex Style, unless 8 with structure during all phases of construction. All field connections are slip critical, friction type, Class B made for all structural steel unless otherwise noted. The Contractor is responsible for the stability of the

Furnish high-strength low alloy corrosion resistant steel conforming to AASHTO M 270, Grade 50 or 50S

Structural Steel:

VOC requirements. Furnish top coat to match federal color 25630.

sealer that passes NCHRP 244 Series II: salt spray resistance requirements and complies with local

Provide a sealer that is an opaque, non-forming, and penetrating silicone acrylic compound. Provide a or marine oils, paraffin materials, stearates, or organic pigments in the formulation.

Use laminar silicates, titanium dioxides, and inorganic oxide for toning pigments. Do not use vegetable and toning pigments suspended in solution at all times by a chemical suspension agent and solvent.

graffiti sealant. Provide a sealer that consists of methyl methacrylate-ethyl acrylate copolymer resins

Coat span 2 concrete parapet interior faces and concrete piers with silicon-based acrylic and anti-

Silione-Based Acrylic Coating Sealant:

and diaphragms; do not paint bridge railings.

6. Clean and paint all superstructure steel, including bridge steel girders, bracing, backer rod.

5. Clean and reseal expansion joints at abutments with silicone joint sealant and sealant.

4. Seal concrete surface on piers with a silicone-based acrylic and anti-graffiti

3. Remove and replace expansion joints over abutments and piers.

2. Remove and replace all bearings with steel…