Appendix 3 Typical Drawings.pdf

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

3/7 /23

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ALASKA REGION

PRD MITKOF

ISLAND BRUSHING

& BRIDGE WEARING

SURFACE

REPLACEMENTS

TONGASS NATIONAL

FOREST

PETERSBURG RANGER DISTRICT

TYPICAL BRUSHING

FEB 2023

TNF ENG

F.BECERRA

C.LAVOIE

01 02

UPDATE TO NEW TEMPLATE AUG 2022

Method A Treatment Area: From 5' Slope Distance Beyond Toe of Ditch to 10' Slope Distance on Fill Slope

Method B Treatment Area: From Toe of Ditch to 5' Slope Distance on Fill Slope

GENERAL NOTES:

1. CUT ALL BRUSH WITHIN TREATMENT AREA WHICH IS LESS THAN

OR EQUAL TO 6 INCHES IN DIAMETER MEASURED 6 INCHES

ABOVE THE GROUND.

2. FOR METHOD A, CUT BRUSH BACK 5 FEET SLOPE DISTANCE

BEYOND BOTTOM OF DITCH OR 15 FEET SLOPE DISTANCE FROM

ROAD SHOULDER, WHICH IS LESS, AND 10 FEET SLOPE

DISTANCE BEYOND THE EDGE OF ROAD SHOULDER ON FILL

SLOPE.

3. FOR METHOD B, CUT ALL BRUSH WITHIN 5 FEET OF CULVERT

INLETS ON ROAD SURFACE.

4. CUT BRUSH TO PROVIDE OVERHEAD CLEARANCE OF 14 FEET

ON ROAD SURFACE.

5. REMOVE DEBRIS FROM ROAD SURFACE, DITCHES, AND CUT

SLOPE ABOVE ROAD. SCATTER TO TILL SLOPES BELOW ROAD,

NO DEBRIS PILES ALLOWED AT CULVERT OUTLETS.

6. CLEAR DITCHES OF WOODY DEBRIS. CLEAN CULVERT INLETS

AND OUTLETS OF DEBRIS A MINIMUM OF 2 CULVERT

DIAMETERS.

7. CUT BRUSH TO PROVIDE SUFFICIENT SITE DISTANCE THE

INSIDE OF SHARP CURVES TO ELIMINATE BLIND CORNERS AND

INTERSECTIONS.

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CLEARING LIMITS

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METHOD A

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CLEARING

AutoCAD SHX Text HEIGHT 14 feet

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ROADBED

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SHOULDERS

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DITCH LINE

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CUT SLOPE

AutoCAD SHX Text 10'

AutoCAD SHX Text 5'

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CLEARING LIMITS

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METHOD B

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FILL SLOPE

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CLEARING

AutoCAD SHX Text HEIGHT 14 feet

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ROADBED

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SHOULDERS

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DITCH LINE

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CUT SLOPE

AutoCAD SHX Text 5'

RUNNING PLANK

CUPPED PLANKS WILL BE PLACED WITH THE CONVEX SIDE UP.

RECESS NAIL HEAD 3/8".

AT 3 ft SPACING THROUGHOUT LENGTH.

SPIRAL SPIKE, 2 AT PLANK ENDS. STAGGER

NOTE: ON RAINIER BRIDGES NAIL RUNNING

AND DECK PLANKS ONLY TO CROSS TIES.

RUNNING PLANK TO DECK CONNECTION

USE 60d RING SHANK OR DOUBLE

EXTEND RUNNING PLANKS TO

COVER TOP OF BACKWALL

WHERE POSSIBLE.

i n

1-1/2 in

WHICH TERMINATE AT END OF

CHAMFER RUNNING PLANK ENDS

BRIDGE DECK

i n

DECK PLANK

GENERAL NOTES

1. VERIFY BRIDGE LENGTH AND WIDTH PRIOR TO ORDERING RUNNING PLANK

MATERIALS.

2. NEW RUNNING PLANKS SHALL BE UNTREATED DOUG FIR, HEMLOCK,

OR SITKA SPRUCE, No. 2 or BETTER, ROUGH FINISH 3" X 12".

3. ALL HARDWARE SHALL BE GALVANIZED.

4. CLEAN DECK SURFACE OF ROCKS, SAND, DIRT, AND OTHER MATERIAL PRIOR TO

REMOVING EXISTING PLANKS AND INSTALLATION OF NEW RUNNING PLANKS.

PRESSURE WASHING IS NOT AN ACCEPTABLE MEANS OF CLEANING A BRIDGE.

MATERIAL REMOVED FROM A BRIDGE WILL BE DEPOSITED AWAY FROM ANY LIVE

STREAM AS DIRECTED BY THE ENGINEER.

5. STAGGER BUTT JOINTS BETWEEN SUCCESSIVE RUNNING PLANKS.

6. PRESERVATIVE TREATMENT SHALL BE COPPER NAPTHENATE. TREAT MATERIAL IN

ACCORDANCE WITH AWPA C1 AND C2 ABOVE GROUND USE.

7. TREAT ALL FIELD DRILLED HOLES IN ACCORDANCE WITH AWPA M4.

8. DISPOSE OF EXCESS AND WASTE MATERIALS OFF FOREST SERVICE LAND.

9. MINIMUM LENGTH OF PLANK IS 10 FEET.

10. LEAVE 4"-6" GAP BETWEEN OUTSIDE PLANKS AND TREATED CURBING.

COVER BACKWALL IF POSSIBLE

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

3/7 /23

:2

2 F

BE

CE

RR

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CH

OA

C

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S.

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G;

(R10)

ALASKA REGION

PRD MITKOF

ISLAND BRUSHING

& BRIDGE WEARING

SURFACE

REPLACEMENTS

TONGASS NATIONAL

FOREST

PETERSBURG RANGER DISTRICT

TYPICAL BRIDGE

WEARING SURFACE

REPLACEMENT

FEB 2023

TNF ENG

F.BECERRA

C.LAVOIE

02 02

UPDATE TO NEW TEMPLATE

CROWNED DESIGN GRADE 3%

ADDED NOT TO SCALE TEXT FEB 2023

FEB 2023

AUG 2022

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