Drawing and Specifications.pdf

DocuSign Envelope ID: 6B5BFA5D-7597-4B71-919D-A463ACAA985F

2/13/2020

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2 3.9'

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50' TRANS. TO EXIST.

5 50' TRANS. TO EXIST.

REMOVE EXIST. BRIDGE

POSTS AND NO WIDENING FOR GUARDRAIL.

USE 8' EXTRA DEPTH GUARDRAILNOTE:

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EXISTING TRUSS BRIDGE

EXISTING GRAVEL ROAD EXISTING GRAVEL ROAD

OVERFLOW AREA

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U.S.D.A. FOREST SERVICE

REGION 8

ENGINEERS

TGS

CORP. LICENSE NO.: C-0275

PH (704) 476-0003

SHELBY, NC 28150

804-C N. LAFAYETTE ST

TGS ENGINEERS

EROSION CONTROL PLAN 7

AND BRIDGES ON FEDERAL HIGHWAY PROJECTS - FP-14

SPECIFICATIONS FOR CONSTRUCTION OF ROADS

ALL ACTIVITY SHALL ABIDE BY THE STANDARD

INSTALLED DURING CLEARING AND GRUBBING PHASE.

PERIMETER EROSION CONTROL MEASURES SHALL BE

Sta. 12+60 to Sta. 13+80 on Slope as Work Allows.

Place Matting for Erosion Control

D

24PEDLAR RANGER DISTRICT

GW/JEFF NATIONAL FORESTS

ALL EROSION CONTROL PAY ITEMS SHOWN IN BOLD

EROSION AND SEDIMENT CONTROL MEASURES

Temporary Silt Fence

Temporary Rock Silt Check Type-A

Temporary Silt Fence Description Symbol

Special Sediment Control Fence

SITE DESCRIPTION

SOIL STABILIZATION TIMEFRAMES

STABILIZATION TIME

7 DAYS

TIMEFRAME EXCEPTIONS

PERIMETER DIKES, SWALES, DITCHES AND SLOPES

HIGH QUALITY WATER (HQW) ZONES 7 DAYS NONE

SLOPES STEEPER THAN 3:1 7 DAYS

IF SLOPES ARE 10' OR LESS IN LENGTH AND ARE

NOT STEEPER THAN 2:1, 14 DAYS ARE ALLOWED.

NONE

SLOPES 3:1 OR FLATTER 14 DAYS

14 DAYS

7 DAYS FOR SLOPES GREATER THAN 50' IN

LENGTH.

ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1 NONE, EXCEPT FOR PERIMETERS AND HQW ZONES.

U.S.D.A. FOREST SERVICE

REGION 8

ENGINEERS

TGS

CORP. LICENSE NO.: C-0275

PH (704) 476-0003

SHELBY, NC 28150

804-C N. LAFAYETTE ST

TGS ENGINEERS

DETAILS

EROSION CONTROL PLAN 8

TEMPORARY SILT FENCE SPECIAL SEDIMENT CONTROL FENCE

TEMPORARY ROCK SILT CHECK TYPE A

PEDLAR RANGER DISTRICT

GW/JEFF NATIONAL FORESTS

MATTING INSTALLATION DETAIL

NOTES:

THIS DETAIL APPLIES TO STRAW, EXCELSIOR, AND PERMANENT SOIL REINFORCEMENT MAT (PSRM) INSTALLATION.

STAPLES SHALL BE NO. 11 GAUGE STEEL WIRE FORMED INTO A "U" SHAPE WITH A MINIMUM THROAT WIDTH OF 1

INCH AND NOT LESS THAN 6 INCHES IN LENGTH.

MATTING IN DITCHES

MATTING ON SLOPES

BACKFILL

MATTING SHALL BE

PLACED IN TRENCH

AND BACKFILLED

18"

(MIN.)

6" MIN

STAPLES ON

1' CENTERS

IN TRENCH

EXISTING

GROUND

6"

(MIN.)

S L O P E

STAPLES ON

1' CENTERS

IN TRENCH

NOT TO SCALE

A

B

A

B

A

4"

4"

10"

10"

10"

DIAGRAM B

DIAGRAM A

10"

6"

30'

C

4"

4"

30'

C

STAPLE

CHECK

10"

4"

4"

Staple Check

Staple

Staple Check Pattern

DIAGRAM c

6'

3'

3'

Staple

FLOW

A A

*T = 12" MIN., 18" MAX.

H

WIDTH

*T

PLAN

SECTION A-A

SECTION B-B

B

B

2/3 CHANNEL

STRUCTURAL STONE

SEDIMENT CONTROL STONE

2' MIN

2' MIN

L=3xH

12"

CONTROL STONE.

USE NO. 5 OR NO. 57 STONE FOR SEDIMENT

FOR STRUCTURAL STONE.

USE CLASS 'B' EROSION CONTROL STONE

NOTE

FILTER FABRIC

COMPACTED FILL

WIRE

NOTES

OF 6 LINE WIRES WITH 12" STAY

SPACING.

DIRECTED BY THE ENGINEER.

FILTER FABRIC

8"

4"

WIRE INTO TRENCH

EXTENSION OF FABRIC AND

8' MAX. WITH WIRE

(6' MAX. WITHOUT WIRE)

SHALL BE 12• GAUGE MIN.

MIDDLE AND VERTICAL WIRES

SHALL BE 10 GAUGE MIN.

TOP AND BOTTOM STRAND

STEEL POST - 2'-0" DEPTH

USE WIRE A MINIMUM OF 32"

IN WIDTH AND WITH A MINIMUM

USE FILTER FABRIC A MINIMUM

OF 36" IN WIDTH AND FASTEN

ADEQUATELY TO THE WIRE AS

PROVIDE 5'-0" STEEL POST OF THE

SELF-FASTENER ANGLE STEEL TYPE.

SEDIMENT CONTROL STONE

SEDIMENT CONTROL STONE

WATER FLOW

STEEL POST - 2 ft DEPTH

2:

*DIMENSION

VARIABLE

2 ft

3 ft

‚ WIRE MESH

1 ft min

‚ WIRE MESH

1 ft min

2 ft

‚ WIRE MESH

D

D

D

D D

SPACE POST A MAXIMUM OF 3 FT.

POST 2 FT. DEEP MINIMUM.

INSTALL 5 FT. SELF FASTENER ANGLE STEEL

WITH 1/4 INCH MESH OPENINGS.

USE HARDWARE CLOTH 24 GAUGE WIRE MESH

CONTROL STONE.

USE NO. 5 OR NO. 57 STONE FOR SEDIMENT

GENERAL NOTES: