3-AG04T0S170012-WorkTypicalsAndMaps.pdf

30'

ORIGINAL GROUND LINES

60°-75° SKEW

60°-75° SKEW

90°'

GRADIENT "A"

DESIGNED GRADE GRADIENT "A"

0% - 8%

+2%

8% - 10%

-1%

10% - 12%

-3%

PLAN VIEW

ROLLING DIP NOTES:

1. OUTSLOPE ENTIRE LENGTH OF DIP 5% - 7%

2. CONSTRUCT DIP TO THE DIMENSIONS SHOWN PRIOR TO

PLACEMENT OF AGGREGATE COURSE, WHEN DESIGNATED ON

TASK ORDER.

3. ROLLING DIP STATIONS SHOWN ARE APPROXIMATE. FINAL

STATIONS TO BE DESIGNATED BY C.O. BEFORE CONSTRUCTION.

4. CONSTRUCTION TOLERANCES FOR GRADIENT "A" IS ±1%

5. CONSERVE ANY 6" TO 18" ROCK ENCOUNTERED IN THE

EXCAVATION AND PLACE AT THE OUTLET OF ROLLING DIP TO

ACT AS DISSIPATER.

6. ROLLING DIP LOCATIONS WILL BE STAKED ON THE PROJECT

SITE OR LISTED ON BPA CALL.

NOT TO SCALE

NOT TO SCALE

90' 30' 60'

ROLLING DIP

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P A

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MATERIAL TO BE EXCAVATED

1.5

MATERIAL TO BE EXCAVATEDEXCAVATED MATERIAL

A

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D

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BOULDER

BURY

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DEPTH

DOW

NGRADE

NOT TO SCALE

PROFILE VIEW

NOT TO SCALE

BOULDER INSTALLATION

NOT TO SCALE

ROAD NUMBER LOCATION A B C D E

PER BPA CALL AS STAKED 3' 5' FULL WIDTH 24' 90°

A = DEPTH OF EXCAVATION AT TOE

B = HEIGHT OF BERM

C = WIDTH OF BERM

D = EXCAVATED LENGTH

E = SKEW OF BERM

NOTE:

PLACE LOGS, ROCKS OR OTHER

MATERIAL ON BERM TO DISCOURAGE

VEHICULAR NEGOTIATION.

EARTH BERM

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NOT TO SCALE

30°-60° SKEW

10' 10' 10'

PLAN VIEW

NOT TO SCALE

10' 10' 10'

APPROX. 15'

M

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. PROFILE GRADE

COMPACT MOUND

PLACE 6" DEPTH 3" MINUS

CRUSHED AGGREGATE WHEN

DESIGNATED ON BPA CALL.

PROFILE VIEW

NOT TO SCALE

WATERBAR NOTES:

1. CONSERVE ANY 6" TO 18" ROCK ENCOUNTERED IN THE

EXCAVATION AND PLACE AT THE OUTLET OF THE WATER

BAR TO ACT AS ENERGY DISSIPATER.

2. WATER BARS SHALL BE SKEWED TO FACILITATE

DRAINAGE. 30° TO 60° ANGLE FROM ROAD CENTERLINE.

3. INTERCEPT DITCH WATER BY INCLUDING A DITCH BLOCK

DURING CONSTRUCTION OF WATER BARS.

4. SPACE WATER BARS PER SECTION 5.1 OR AS

DESIGNATED ON BPA CALL.

5. EXISTING AGGREGATE SHALL BE CONSERVED AND

UTILIZIED TO SURFACE WATER BAR.

ORIGINAL GROUND LINES

WATER BAR (DRIVABLE)

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NOT TO SCALE

30°-60° SKEW

2' 2.5' 4'

PLAN VIEW

NOT TO SCALE

2' 2.5' 4'

M

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PROFILE GRADE

COMPACT MOUND

PROFILE VIEW

NOT TO SCALE

WATERBAR NOTES:

1. CONSERVE ANY 6" TO 18" ROCK ENCOUNTERED IN THE

EXCAVATION AND PLACE AT THE OUTLET OF THE WATER

BAR TO ACT AS ENERGY DISSIPATER.

2. WATER BARS SHALL BE SKEWED TO FACILITATE

DRAINAGE. 30° TO 60° ANGLE FROM ROAD CENTERLINE.

3. INTERCEPT DITCH WATER BY INCLUDING A DITCH BLOCK

DURING CONSTRUCTION OF WATER BARS.

4. SPACE WATER BARS PER SECTION 5.1 OR AS

DESIGNATED ON BPA CALL.

5. EXISTING AGGREGATE SHALL BE CONSERVED AND

UTILIZIED TO SURFACE WATER BAR.

ORIGINAL GROUND LINES

WATER BAR (NON-DRIVABLE)

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ORIGINAL ROAD SURFACE.

PLACED FILL SLOPE MATERIAL.

CUT SLOPE WITH OR WITHOUT DITCH.

ORIGINAL GROUND LINE

NOTES:

1. REMOVE MATERIAL FROM FILL SLOPES AND PLACE ON CUT SLOPES AND

SHAPE TO A 1V:1.5H SLOPE OR FLATTER.

2. PLACE LOGS, ROCKS, AND OTHER MATERIALS ON DISTURBED AREAS TO

MATCH THE NATURAL SURROUNDINGS.

3. TREES LARGER THAN 6" GROWING IN FILL SHALL NOT BE DISTURBED.

FILL SLOPE PULLBACK

NOT TO SCALE

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1.5 X CULVERT DIA. OR AS DESIGNATED ON BPA CALL

V

H

V

H

SEED AND MULCH EXCAVATED

SLOPES AND WASTE MATERIAL,

AS PER SECTION 5.8 AS

STATED ON TASK ORDER.

STREAM CHANNEL ROCK

SEE SUB SECTION 5.6.4

ROAD SURFACEROAD SURFACE

STREAM CROSS SECTION

ROAD CROSS SECTION

CULVERT REMOVAL

EXCAVATED MATERIAL SHALL BE PLACED

AND SLOPED TO DRAIN AS PER SECTION 5.6

ROAD SURFACE

NOT TO SCALE

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GENERAL NOTES

1. AFTER EXCAVATION, CHANNEL BOTTOM WIDTH SHALL BE THE DIAMETER OF

REMOVED CULVERT, AND CHANNEL SLOPES SHALL BE NO STEEPER THAN 1:2

(RISE TO RUN), OR AS SHOWN ON WORK LIST.

2. WHEN SHOWN ON THE WORK LIST, CULVERT PIPE REMOVAL MAY REQUIRE

ADDITIONAL CHANNEL EXCAVATION TO THE BASE OF AN EXISTING OUTLET PIPE,

OR TO OTHER DIMENSION AS DESIGNATED.

3. PLACE EXCAVATED MATERIAL AGAINST THE BACK SLOPE BLOCKING DRAINAGE

DITCH, AND SHAPE TO DRAIN.

PLACE MATERIAL AGAINST BACK SLOPE

DRAINAGE DITCH

TOE OF FILL

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TOP OF BACKSLOPE

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CULVERT REMOVAL-a

PERSPECTIVE VIEW

NOT TO SCALE

EXCAVATE MATERIAL

LOWER EXCAVATION LIMIT

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EXCAVATION SECTION VIEW A - A

NOT TO SCALE

S H

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CULVERT REMOVAL - a

U.S.D.A. FOREST SERVICE PACIFIC NORTHWEST REGION

MULTI - AGENCY ROAD DECOMMISSIONING & STORM PROOFING - BPA

GENERAL NOTES:

1. AFTER EXCAVATION, CHANNEL BOTTOM WIDTH SHALL BE

THE DIAMETER OF REMOVED CULVERT, AND CHANNEL

SLOPES SHALL BE NO STEEPER THAN 1:2 (RISE TO RUN)

OR AS SHOWN ON WORK LIST.

2. WHEN SHOWN ON THE WORK LIST, CULVERT PIPE

REMOVAL MAY REQUIRE ADDITIONAL CHANNEL

EXCAVATION TO THE BASE OF AN EXISTING OUTLET

PIPE, OR TO OTHER DESIGNATED DIMENSION.

3. REMOVE ALL CULVERT APPURTENANCES INCLUDING

HEADWALL, ANCHORS, BASKETS, AND OTHER

UNNATURAL PRODUCTS.

4. REMOVE VEGETATION FROM DISPOSAL AREA PRIOR TO

PLACEMENT OF EXCAVATED MATERIAL. AFTER

PLACEMENT SCATTER ALL UNEARTHED VEGETATION ON

DISPOSAL AREA.

5. PLACE EXCAVATED MATERIAL ONLY ON INSIDE HALF OF

THE ROADBED DOWNGRADE OF CHANNEL AND AGAINST

THE BACK SLOPE. SHAPE TO DRAIN AT MAXIMUM 1:1.5

(RISE TO RUN) SLOPE.

CULVERT REMOVAL - b

NOT TO SCALE

A

A B

B

PERSPECTIVE VIEW

NOT TO SCALE

TOE OF FILL

PLACE MATERIAL AGAINST BACK SLOPE

DRAINAGE DITCH

D

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A

D

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TOP OF BACKSLOPE

EXCAVATE MATERIAL

LOWER EXCAVATION LIMIT

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EXCAVATION SECTION VIEW A - A

NOT TO SCALE

DISPOSAL SECTION VIEW B - B

NOT TO SCALE

INSIDE HALF OF ROADWAY

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MATERIAL SHALL NOT EXCEED TOP OF CUT

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1. EXCAVATE OUTSIDE PORTION OF EXISTING ROADBED AND PLACE ON INSIDE PORTION OF

ROADBED AND ANY DRAINAGE DITCH.

2. REMOVE VEGETATION FROM AFFECTED FILL SLOPE, CUT SLOPE, AND DRAINAGE DITCH

PRIOR TO EXCAVATION OF MATERIAL.

3. THE CONTRACTING OFFICER MAY APPROVE A LESSER PERCENT OF OUTSLOPE WHEN

EXCESSIVE ROCK IS ENCOUNTERED DURING EXCAVATION.

GENERAL NOTES

PLACE EXCAVATED

MATERIAL AGAINST

CUT SLOPE

EXISTING ROADBED

EXCAVATE MATERIAL

MINIMUM OUTSLOPE OF

15% OR AS STATED ON

BPA CALL

OUTSLOPING TYPICAL

NOT TO SCALE

CROSS SECTION VIEW

NOT TO SCALE

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