H.01.01_CI Earthwork_RTA_PLANS_revised.pdf

PDF 28 MB Posted Jan 11, 2021

Attached to: Craney Island Earthwork IDIQ, Portsmouth, Virginia
Solicitation number: W9123621B5007
Issued by: Department of the Army Corps of Engineers Engineering District Norfolk

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File	Type	Posted
ABSTRACT OF OFFERORS 21B5007 CI Earthwork IDIQ 02172021.pdf	PDF	Feb 17, 2021
A.07.24_21B5007_Amendment 0002_02042021.pdf	PDF	Feb 4, 2021
Site Visit Roster_20210121.pdf	PDF	Jan 26, 2021
A.01.24_21B5007_Amendment 0001_01132021.pdf	PDF	Jan 13, 2021
H.01.04_CI Earthwork_RTA_SPECIFICATIONS.pdf	PDF	Jan 11, 2021
A.07.23_Solicitation_21B5007_01112021.pdf	PDF	Jan 11, 2021

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EARTHWORK PROJECT 2021

FOR CRANEY ISLAND DREDGED MATERIAL MANAGEMENT AREA

PORTSMOUTH, VIRGINIA

US Army Corps of Engineers

Norfolk District

US Army Corps of Engineers

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AutoCAD SHX Text SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION AND APPROVAL OF ALL DRAWINGS IN THIS SET AS INDICATED ON INDEX TO DRAWINGS.

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NORFOLK, VIRGINIA

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DEPARTMENT OF THE ARMY

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NORFOLK DISTRICT, CORPS OF ENGINEERS

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CHIEF, WATER RESOURCES DIVISION

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CHIEF, DESIGN SECTION

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CHIEF, OPERATIONS BRANCH

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APPROVED:

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REVIEWED:

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SUBMITTED:

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APPROVED:

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CHIEF, NAVIGATION SUPPORT AND SURVEY SECTION

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SHEET

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AS SHOWN

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NORFOLK DISTRICT

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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DESCRIPTION

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8 JAN 2021

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COVER SHEET

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LOCATION MAP

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LEGEND AND GENERAL NOTES

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OVERALL PLAN & BORROW AREA

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BD & AD SURVEYING

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SPILLBOX IMAGES AND DESCRIPTIONS

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WEST DIKE TYPICAL CROSS-SECTIONS

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NORTH & EAST DIKE TYPICAL CROSS-SECTIONS

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EAST DIKE CONT'D & SOUTH DIKE TYPICAL CROSS-SECTIONS

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NORTH & SOUTH CROSS DIKE TYPICAL CROSS-SECTIONS

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WEST DIKE PROPOSED PROFILE

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NORTH DIKE PROPOSED PROFILE

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EAST DIKE PROPOSED PROFILE

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SOUTH DIKE PROPOSED PROFILE

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NORTH & SOUTH CROSS-DIKE PROPOSED PROFILE

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TYPICAL BORROW AREA & CI EASTWARD EXPANSION CROSS-SECTIONS

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TYPICAL E&S PLAN FOR DIKE RAISING PROJECT

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REFERENCE DRAWINGS FOR SPILLWAY EROSION CONTROL

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TYPICAL SW REPLACEMENT E&S CONTROL FOR SW

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TYPICAL EROSION & SEDIMENT CONTROL DETAILS

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REFERENCE DRAWINGS FOR EXISTING SHORELINE PROTECTION

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OVERALL PROJECT PHASING PLAN - REFERENCE DRAWING

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PHASE I WEST SHORE AND NORTH REVETMENT - REFERENCE DRAWING

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PHASE III NORTH SHORE AND REVETMENT - REFERENCE DRAWING

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REFERENCE DRAWINGS FOR EXISTING SPILWAY 1 THRU 6

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AutoCAD SHX Text SPILLWAY No.1 - FOR INFORMATION ONLY

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AutoCAD SHX Text SPILLWAY No.1 - FOR INFORMATION ONLY (CONT'D)

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AutoCAD SHX Text SPILLWAY No.3 - FOR INFORMATION ONLY

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AutoCAD SHX Text AS-BUILTS FOR SPILLWAY No.4 - FOR INFORMATION ONLY

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AutoCAD SHX Text SPILLWAY No.5 - FOR INFORMATION ONLY

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AutoCAD SHX Text SPILLWAY No.6 - FOR INFORMATION ONLY

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AutoCAD SHX Text EXISTING SPILWAY No. 6 (REFERENCE ONLY)

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AutoCAD SHX Text EXISTING SPILWAY No. 6 (REFERENCE ONLY) CONT'D

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AutoCAD SHX Text EXISTING SPILWAY No. 6 (REFERENCE ONLY) CONT'D

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AutoCAD SHX Text EXISTING SPILWAY No. 2 THRU 5 (REFERENCE ONLY)

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AutoCAD SHX Text EXISTING SPILWAY No. 2 THRU 5 (REFERENCE ONLY) CONT'D

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AutoCAD SHX Text EXISTING SPILWAY No. 2 THRU 5 (REFERENCE ONLY) CONT'D

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CRANEY ISLAND INSTRUMENTATION CLUSTERS - FOR INFORMATION ONLY

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STRUCTURAL PLAN AND DETAILS, INTERIOR REPAIR SHEETING

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STRUCTURAL PLAN AND DETAILS, EXTERIOR REPAIR SHEETING

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LOCATION

CRANEY ISLAND

USACE OFFICE

4599 RIVER SHORE ROAD

PORTSMOUTH, VA 23703

757 484-1021

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N.I.T. SOUTH

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N.I.T. NORTH

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NORFOLK HARBOR CHANNEL

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EXISTING SPILLBOX #4

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WESTERN FREEWAY (EBL) HWY 164

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WESTERN FREEWAY (WBL) HWY 164

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RIVER SHORE LANE

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TWIN PINES ROAD

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HEDGEROW LANE

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RIVER SHORE LANE

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CEDAR LANE

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TO MIDTOWN TUNNEL

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TO I-664

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CRANEY ISLAND

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SCALE IN MILES

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%%ULOCATION MAP

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US HWY 13

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CHESAPEAKE BAY

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ATLANTIC OCEAN

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(HWY 13)

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US HWY

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HRBT

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SCALE IN MILES

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VIRGINIA

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NORTH CAROLINA

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CBBT

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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NORTH CELL

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SOUTH CELL

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SCALE IN FEET

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N.I.T. NORTH

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NORFOLK HARBOR CHANNEL

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EXISTING SPILLBOX #4

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RIVER SHORE LANE

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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LIMITS OF EARTHWORK CONSTRUCTION

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BENCHMARKS

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ELEVATIONS

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BENCHMARKS

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AutoCAD SHX Text Elevations are relative to NOS MLLW, 1983-2001 NTDE

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CE "AR-2 RESET, 1975"

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2.58' RANGE

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DATUM DIAGRAM CRANEY ISLAND NOS MLLW, 1983-2001 NTDE (SCALE 1"-1')

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NOS MLLW, 1983-2001 TIDAL EPOCH

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PREVIOUS USED NOS MLLW, 1960-1978 TIDAL EPOCH

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ELEV

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ELEVATION

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BEGINNING OF PROJECT

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NATIONAL TIDAL DATUM EPOCH

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INVERT

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MEAN HIGH WATER

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PLACEMENT SITE

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HORIZONTAL SCALE

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MHW

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HORIZONTAL

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NTDE

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END OF PROJECT

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BOP

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EOP

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%%UABBREVIATIONS

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MEAN LOW WATER

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MEAN LOWER LOW WATER

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NATIONAL OCEAN SERVICE

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NATIONAL GEODETIC VERTICAL DATUM

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NOS

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MLLW

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NGVD

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MLW

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ADJUSTMENT

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UNITED STATES COAST AND GEODETIC SURVEY

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USC&GS

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VERTICAL

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VERTICAL

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NOS MLW, 1983-2001 TIDAL EPOCH

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NOS MHW, 1983-2001 TIDAL EPOCH

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NAVD 88

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- NOTES -

AutoCAD SHX Text FEDERAL PROJECT: Dike construction to raise dikes in critical areas as shown in the drawings. MEAN LOWER LOW WATER, 1983-2001 NATIONAL TIDAL DATUM EPOCH (NTDE), which was determined by using the National Ocean Service (NOS) VDATUM program, based on USACE digital leveling of the NAVD88 elevation established on CE"AR-2 Reset, 1975", CE "NICO 1993" and CE "REHANDLING, 2015", near the bulkhead at the Craney Island Rehandling Basin, Hampton Roads Va. The NAVD88 to NOS MLLW 83-01 separation values are shown to be a 0.01' different between all 3 sites. MEAN RANGE OF TIDE is 2.58 feet at Craney Island Bulkhead, Hampton Roads, VA based on NOS VDATUM Program. COORDINATES are referred to the Virginia State Plane Coordinate System, South Zone in U.S. survey feet, and are based on the North American Datum of 1983.

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CE "NICO, 1993"

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"REHANDLING, 2015" OPUS

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- L E G E N D -

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LIMITS OF CONSTRUCTION

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SHORELINE

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PROFILE EXISTING SURFACE

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PROFILE PROPOSED SURFACE

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BENCHMARK

FEDERAL NAVIGATION CHANNEL

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SCALE IN FEET

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CE "REHANDLING, 2015" OPUS

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CE "NICO, 1993"

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CE "AR-2 RESET, 1975"

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REHANDLING BASIN

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NORTH ACCESS CHANNEL

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SOUTH ACCESS CHANNEL

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NORFOLK HARBOR CHANNEL

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HAMPTON ROADS HARBOR

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EXISTING SPILLBOX #5

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NORTH CELL

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CENTER CELL

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SOUTH CELL

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EXISTING SPILLBOX #1

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EXISTING SPILLBOX #6

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ELIZABETH RIVER

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COE ADMIN COMPLEX & MAIN ENTRANCE

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EXISTING SPILLBOX #3

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RIVER SHORE ROAD

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SPILLBOX #2

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EXISTING SPILLBOX #4

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FUTURE SPILLBOX #1 (TO BE BUILT UNDER A SEPARATE CONTRACT)

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CONTRACTOR'S LAYDOWN AREA

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BORROW AREA

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SHEET

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AS SHOWN

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NORFOLK DISTRICT

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NORFOLK, VIRGINIA

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DESCRIPTION

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JOSEPH MOORE

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SEE SHEET 16 FOR BORROW AREA DRAINAGE DITCH SPACING.

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EXTERIOR SIDE OF DIKE

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INTERIOR SIDE OF DIKE

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NEW WORK

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LOW ROAD

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HIGH ROAD

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MAINTAIN EXISTING SLOPE AS SHOWN ON THE DRAWINGS

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EXISTING SURFACE

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PHASE II PROPOSED SURFACE

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SUITABLE MATERIAL

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1. FOR ALL TASK ORDERS, THE CONTRACTOR IS RESPONSIBLE FOR THE BEFORE DIKE (BD) SURVEY OF ONLY FOR ALL TASK ORDERS, THE CONTRACTOR IS RESPONSIBLE FOR THE BEFORE DIKE (BD) SURVEY OF ONLY THE EXISTING SURFACE THAT WILL BE RECEIVING NEW MATERIAL. ON THE INTERIOR SLOPE OF THE DIKE, SURVEY TO THE TOP OF THE WATER SURFACE. ON THE EXTERIOR SLOPE, SURVEY TO 15' BEYOND THE EDGE OF THE NEW DIKE MATERIAL. SURVEY SHOULD BE CONTINUOUS ACROSS THE TOP DIKE SURFACE AND DOWN THE TWO DIKE SIDES. 2. FOR ALL TASK ORDERS, THE CONTRACTOR IS RESPONSIBLE FOR THE AFTER DIKE (AD) SURVEYS OF ONLY THE FOR ALL TASK ORDERS, THE CONTRACTOR IS RESPONSIBLE FOR THE AFTER DIKE (AD) SURVEYS OF ONLY THE NEW DIKE MATERIAL PLACED AND COMPACTED AREA PLUS 15' ON THE EXTERIOR SLOPE; AND TO THE TOP OF WATER SURFACE ON THE INTERIOR SLOPE. SURVEY SHOULD BE CONTINUOUS ACROSS THE TOP DIKE SURFACE AND DOWN THE TWO DIKE SIDES. 3. SURVEY DATUM AND LAYOUT OF STATIONING IS BASED ON THE GOVERNMENT'S CENTER LINE THAT RUNS SURVEY DATUM AND LAYOUT OF STATIONING IS BASED ON THE GOVERNMENT'S CENTER LINE THAT RUNS DOWN/NEAR THE DIKE'S TOPS SURFACE. CONTRACTOR'S BEFORE (BD) AND AFTER (AD) SURVEYS MUST USE THE SAME CENTER LINE. SURVEY CROSS-SECTIONS SHOULD BE TAKEN EVERY 100 FEET AND INCLUDED A MINIMUM OF 6 POINTS SUCH THAT A TRUE LAYOUT IS REPRESENTED.

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30' CREST PHASE I

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30' CREST PHASE II

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BEFORE DIKE (BD) AND AFTER DIKE (AD) SURVEYS

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TOP SURFACE FOR PHASE II'S AD SURVEY

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PHASE I PROPOSED SURFACE

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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8 JAN 2021

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(1)

SPILLWAY TYPE #1 - STEEL FRAME & ABOVE GROUND

RE: SPILLWAY #1 & IN SECTION #1

SPILLWAY TYPE #2 - FREESTANDING WITH LAND BRIDGE

RE: SPILLWAY #2, #3, #4 & #5 IN SECTION 1, 2 & 3 RE: SPILLWAY #5 IN SECTION #3

SPILLWAY TYPE #4 - CONCRETE FRAME & ABOVE GROUND

LEVEL

RE: SPILLWAY #6 IN SECTION #3

SPILLWAYS LOCATED ON THE WEST SIDE DIKES

SPILLWAY #2

SPILLWAY #3

SPILLWAY #4

SPILLWAY TYPE #2 - FREESTANDING WITH LAND BRIDGE

SPILLWAY #5

SPILLWAY #5 SPILLWAY #6

SPILLWAY #6

SPILLWAY #1

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DESCRIPTION

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JOSEPH MOORE

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DESCRIPTION

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JOSEPH MOORE

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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DESCRIPTION

AutoCAD SHX Text CRI.XXXXc.XX,XXXX.PS

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JOSEPH MOORE

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SHEET

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AS SHOWN

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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DESCRIPTION

AutoCAD SHX Text CRI.XXXXc.XX,XXXX.PS

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JOSEPH MOORE

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18" MAX PER RAISING CYCLE

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CENTER CELL

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EXISTING SURFACE

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SOUTH CELL

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CENTER CELL

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18" MAX PER RAISING CYCLE

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SHEET

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AS SHOWN

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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DESCRIPTION

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JOSEPH MOORE

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Norfolk District

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HEADING NORTH

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HORIZONTAL SCALE

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VERTICAL SCALE

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PROPOSED SPILLWAY #1 STATION: 7+50

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PROPOSED SPILLWAY 32 STATION: 19+50

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EXISTING SPILLWAY STATION: 26+39

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EXISTING SPILLWAY #3 STATION: 38+55

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EXISTING SPILLWAY #5 STATION: 71+90

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EXISTING SPILLWAY #6 STATION: 100+50

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SOUTH CROSS-DIKE STATION: 29+00

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NORTH CROSS-DIKE STATION: 65+85

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EXISTING SPILLWAY #1 STATION: 0+16

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EXISTING SPILLWAY #4 STATION: 65+30

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AS SHOWN

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DESCRIPTION

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JOSEPH MOORE

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EXISTING SPILLWAY #6 STATION: 100+50

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DESCRIPTION

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JOSEPH MOORE

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SOUTH CROSS-DIKE STATION: 253+89

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NORTH CROSS-DIKE STATION: 216+00

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DESCRIPTION

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DESCRIPTION

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SHEET

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DESCRIPTION

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8 JAN 2021

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BORROW AREA DRAINAGE DITCH TYPICAL X-SECTION NOT TO SCALE

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VARIES

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MINIMUM WIDTH 2'

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APPROXIMATE 100'

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VARIES

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MINIMUM WIDTH 2'

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DRAINAGE DITCH

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DRAINAGE DITCH

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SEE SHEET 4 FOR LOCATION OF DRAINAGE AREA.

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3:1 OR FLATTER

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3:1 OR FLATTER

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3:1 OR FLATTER

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3:1 OR FLATTER

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NORTH DIKE

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REHANDLING BASIN SPUR DIKE

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CRANEY ISLAND REHANDLING BASIN

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CRANEY ISLAND EASTWARD EXPANSION

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SHEET

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AS SHOWN

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NORFOLK DISTRICT

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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8 JAN 2021

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NORFOLK HARBOR CHANNEL

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CRANEY ISLAND REHANDLING BASIN

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CRANEY ISLAND EASTWARD EXPANSION

NOTE: EASTWARD EXPANSION SURVEY TAKEN SPRING 2017 AND REHANDLING BASIN TAKEN NOVEMBER 2019.

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2" DIA.

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WASHER

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3/16" DIA.

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STEEL PIN

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11 GAUGE STEEL

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%%UPIN

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1) 1x4 TRIANGULAR SURVEY STAKE - MINIMUM

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10" IN LENGTH. PLACEMENT OF THE STAKE

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ACROSS THE FLOW OF THE WATER IS THOUGHT

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TO PROVIDE A "PINBALL EFFECT" TO HELP

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SLOW THE VELOCITY.

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2) 11 GAUGE STEEL - MINIMUM 1" WIDE BY 6"

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MAY BE REQUIRED IN CERTAIN SOIL CONDITIONS.

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BY 18" IN LENGTH WITH A 2" DIAMETER

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WASHER ON TOP. (SEE ILLUSTRATION)

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FOR

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INSTALLATION OF

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TREATMENT - 2

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SOIL STABILIZATION MATTING

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SOURCE: PRODUCT LITERATURE FROM GREENSTREAK, INC.

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PLATE: 3.36-3

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STAKES, STAPLES, & PINS

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%%USTAPLE

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3) STEEL PINS - 3/16 DIAMETER STEEL PIN

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TYPICAL TREATMENT - 2

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SOIL STABILIZATION MATTING

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SLOPE INSTALLATION

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OVERLAP

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AT ROLL

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TERMINAL

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OVERLAP

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MIN. 6"

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DIRT SHALL BE

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TAMPERED PRIOR

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TO LAYING TOP

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LAP OVER

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%%UFILL SLOPE SECTION

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%%UTOE

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%%UBERM

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%%USLOPE LINING

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%%U(WET SLOPE)

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%%USLOPE LINING

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%%U(DRY SLOPE)

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SOIL STABILIZATION MATS SHOULD

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BE INSTALLED VERTICALLY

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DOWNSLOPE FOR BEST RESULTS.

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%%UNOTE:%%U SLOPE SURFACE

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SHALL BE SMOOTH

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AND FREE OF

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ROCKS, LUMPS OF

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DIRT, GRASS AND

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STICKS. MAT SHALL

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BE PLACED FLAT

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ON SURFACE FOR

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PROPER SOIL

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CONTACT.

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MAINTAIN SLOPE ANGLE

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TRENCH INTO BERM AND

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PROGRESS DOWNSLOPE

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BOTTOM OF FILL SLOPE

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OR SHOULDER

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BREAK POINT

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BOTTOM OF CUT SLOPE

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TOP OF

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CUT SLOPE

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WATER TABLE

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FILTER CLOTH

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4' ABOVE SOURCE

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OF WATER (AQUIFIER)

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BOTTOM OF CUT SLOPE

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POLYPROPELYENE

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NON-WOVEN

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(NEEDLE PUNCHED)

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GEOTEXTILE FILTER

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CLOTH

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SOIL

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SOURCE: VDOT %%UROAD AND BRIDGE STANDARDS%%U

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PLATE: 3.36-5

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TREATMENT - 2

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TREATMENT - 2

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(BEHIND

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TREATMENT - 2)

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PLATE: 3.36-6

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SOURCE: PRODUCT LITERATURE FROM NORTH AMERICAN GREEN

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FOR OPTIMUM RESULTS, THESE RECOMMENDED

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GRADIENTS AFFECT STAPLING PATTERNS.

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CHART SHOWS HOW SLOPE LENGTHS AND

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ACCORDING TO THE MANUFACTURER. THIS

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SUGGESTED ANCHORING METHODS VARY

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STAPLE PATTERN GUIDES MUST BE FOLLOWED.

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NOTE:

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3 1/2 STAPLES PER SQ. YD.

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2 STAPLES PER SQ. YD.

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1 1/2 STAPLES PER SQ. YD.

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1 STAPLE PER SQ. YD.

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SHORELINE

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AND

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CHANNEL

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FLOW

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MED. / HIGH

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CHANNEL

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FLOW

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LOW

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(SOIL STABILIZATION MATTING)

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FOR TREATMENT - 2

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AND RECOMMENDATIONS

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GENERAL STAPLE PATTERN GUIDE

AutoCAD SHX Text INSTALLATION REQUIREMENTS 1. SITE PREPARATION - AFTER SITE HAS BEEN SHAPED AND GRADED TO APPROVED DESIGN, SITE PREPARATION - AFTER SITE HAS BEEN SHAPED AND GRADED TO APPROVED DESIGN, PREPARE A FRIABLE SEEDBED RELATIVELY FREE FROM CLODS AND ROCKS MORE THAN 1INCH IN DIAMETER, AND ANY FOREIGN MATERIAL THAT WILL PREVENT CONTACT OF THE SOIL STABILIZATION MAT WITH THE SOIL SURFACE. IF NECESSARY, REDIRECT ANY RUNOFF AWAY FROM THE SLOPE DURING INSTALLATION. INSTALLATION. 2. PLANTING - LIME, FERTILIZE AND SEED IN ACCORDANCE WITH MS #1 AND THE PLANTING - LIME, FERTILIZE AND SEED IN ACCORDANCE WITH MS #1 AND THE APPROVED PLAN, PAYING SPECIAL ATTENTION TO THE PLANT SELECTION THAT MAY HAVE BEEN CHOSEN FOR THE MATTED AREA. IF THE AREA HAS BEEN SEEDED PRIOR TO MATTED AREA. IF THE AREA HAS BEEN SEEDED PRIOR TO INSTALLING THE MAT, MAKE SURE AND RESEED ALL AREAS DISTURBED DURING INSTALLATION. 3. MULCHING - MULCH (NORMALLY STRAW) SHOULD BE APPLIED FOLLOWING INSTALLATION MULCHING - MULCH (NORMALLY STRAW) SHOULD BE APPLIED FOLLOWING INSTALLATION OF TREATMENT-2 AT RATES NOTED IN STD. & SPEC. 3.35, MULCHING. TREATMENT-2 AT RATES NOTED IN STD. & SPEC. 3.35, MULCHING. 4. SECURING THE MATERIAL AND JOINING MATS - AGAIN, PRODUCT SPECIFICATIONS VARY - SECURING THE MATERIAL AND JOINING MATS - AGAIN, PRODUCT SPECIFICATIONS VARY - UPSTREAM AND DOWNSTREAM TERMINAL SLOTS, NEW ROLL OVERLAPS AND MULTIPLE WIDTH INSTALLATIONS DIFFER BY VARIOUS PRODUCTS AND MANUFACTURERS. DIFFER BY VARIOUS PRODUCTS AND MANUFACTURERS. FINAL CHECK - THESE INSTALLATION TECHNIQUES MUST BE ADHERED TO: 6.1 SOIL STABILIZATION MAT IS IN UNIFORM CONTACT WITH THE SOIL. SOIL STABILIZATION MAT IS IN UNIFORM CONTACT WITH THE SOIL. 6.2 ALL REQUIRED SLOTS AND LAPPED JOINTS ARE IN PLACE. 6.3 THE MATERIAL IS PROPERLY ANCHORED. 6.4 ALL DISTURBED AREAS ARE SEEDED. 5. MAINTENANCE MAINTENANCE ALL SOIL STABILIZATION BLANKETS AND MATTING SHOULD BE INSPECTED PERIODICALLY FOLLOWING INSTALLATION, PARTICULARLY AFTER RAINSTORMS TO CHECK FOR EROSION AND UNDERMINING. ANY DISLOCATION OR FAILURE SHOULD BE REPAIRED IMMEDIATELY. IF WASHOUTS OR BREAKAGE OCCURS, REINSTALL THE MATERIAL AFTER REPAIRING DAMAGE INSTALL THE MATERIAL AFTER REPAIRING DAMAGE TO THE SLOPE. CONTINUE TO MONITOR THESE AREAS UNTIL WHICH TIME THEY BECOME PERMANENTLY STABILIZED.

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EROSION CONTROL CRANEY ISLAND DIKE RAISING PROJECT

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DIKE CREST

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INTERIOR DIKE SLOPE

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EXTERIOR DIKE SLOPE

AutoCAD SHX Text EXTERIOR SLOPE VARIES 6:1 TO 8:1. CONTRACTOR SHALL INSPECT THE EXTERIOR SLOPES OF THE PERIMETER DIKE FOR ANY WASHOUTS OR DEGRADING AREAS THAT MAY CAUSE THE DIKE TO FAIL AND REPAIR IF NEEDED.

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SHEET

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NORFOLK DISTRICT

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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8 JAN 2021

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AutoCAD SHX Text (17)

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FOR REFERENCE ONLY

REFERENCE DRAWINGS FOR SPILLWAY EROSION CONTROL

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SHEET

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NORFOLK DISTRICT

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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SHEET

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NORFOLK, VIRGINIA

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CORPS OF ENGINEERS

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NORFOLK DISTRICT FILE NO.:

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DESCRIPTION

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JOSEPH MOORE

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8 JAN 2021

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2. STAPLE WIRE FENCING TO THE POSTS.

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4. BACKFILL AND COMPACT THE

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EXCAVATED SOIL.

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EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.

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(WITH WIRE SUPPORT)

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CONSTRUCTION OF A SILT FENCE

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3. ATTACH THE FILTER FABRIC TO THE WIRE

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FENCE AND EXTEND IT INTO THE TRENCH.

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FILTER FABRIC

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WIRE

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FLOW

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1. SET POSTS AND EXCAVATE A 4"X4"

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TRENCH UPSLOPE ALONG THE LINE

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FLOW

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OF POSTS.

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PLATE. 3.05-1

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MINIMUM TOP WIDTH (W)

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REQUIRED FOR SEDIMENT

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TRAP EMBANKMENTS

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ACCORDING TO HEIGHT OF

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EMBANKMENT (FEET)

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EXCAVATED AREA

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SOURCE: VA. DSWC

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PLATE. 3.13-1

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ORIGINAL

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GROUND

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ELEV.

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MAX. DEPTH = 4'

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TEMPORARY SEDIMENT TRAP

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CROSS SECTION OF OUTLET

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OUTLET (PERSPECTIVE VIEW)

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SOURCE: VA. DSWC

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PLATE. 3.13-2

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ORIGINAL

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GROUND

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ELEV.

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FILTER CLOTH

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COARSE AGGREGATE

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(EXCAVATED)

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67 CU. YD./ACRE

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67 CU. YD./ACRE

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