2-Kos_Complete_Drawing_Set_160325.pdf

Is.

NO SCALE

HOLLIS

I.

DUKE

KETCHIKAN

PASS

WHALE

COVE

COFFMAN

BAY

LABOUCHERE

POINT BAKER

KLAWOCK

CRAIG

ISLAND

SUEMEZ

ISLAND

BAKER

LULU

ISLAND

NOYES

CHUCK

MEYERS

BAY

THORNE

LONG

HYDABURG

ISLAND

HECETA

ISLAND

WARREN

ISLAND

CORONATION

ISLAND

PRINCE OF WALES

MONUMENT

NATIONAL

FIORDS

MISTY

ISLAND

REVILLAGIGEDOPENNINSULA

CLEVELAND

KOSCIUSKO ISLAND ROAD

REHABILITATION

SUMMARY OF QUANTITIES

NO.

TYPICAL CULVERT INSTALLATION

COVER SHEET

DESCRIPTION

INDEX TO SHEETS

1500000

1500010

ROAD NO.

MAINTENANCE

RECONDITIONING

2.36

0.19

LENGTH

(MILES)

TYPE

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:08/2004

KOSCIUSKO ROADS REHABILITATION SHEET TITLE

THORNE BAY RANGER DISTRICT

X. XXXXXXX XX/XX/XX

R.JACOBSON 10/08/15

X. XXXXXXXXXX XX/XX/XX

XX/XX/XX XXXXXXXXXX X. XXXXXX

XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

ACAD.DWG

1 8

PROJECT AREA

TYPICAL OVERLAY SECTION

BRUSHING DETAILS

PIT AND QUARRY DETAIL

WORK LISTS

8 EROSION CONTROL

1520000

1520010

MAINTENANCE

RECONDITIONING

13.70

0.26

1520020

1520030

RECONDITIONING

RECONDITIONING

1.03

1.66

1520060

1520100

RECONDITIONING

RECONDITIONING

1.33

0.26

1525000 MAINTENANCE1.66

ROCK SOURCE

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:01/04

KOSCIUSKO ROADS REHABILITATION SUMMARY OF ESTIMATED QUANTITIES

THORNE BAY RANGER DISTRICT

X. XXXXXXX XX/XX/XX

X. XXXXXXX XX/XX/XX

X. XXXXXXXXXX XX/XX/XX

XX/XX/XX XXXXXXXXXX X. XXXXXX

XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

ACAD.DWG

2 8

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:01/04

KOSCIUSKO ROADS REHABILITATION WORK LISTS

THORNE BAY RANGER DISTRICT

X. XXXXXXX XX/XX/XX

X. XXXXXXX XX/XX/XX

X. XXXXXXXXXX XX/XX/XX

XX/XX/XX XXXXXXXXXX X. XXXXXX

XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

ACAD.DWG

3 8

24"

" M

IN

CL

RIPRAP,

SEE NOTE 7

EXIST.

STREAMBED

/2

P

IP

E Ø

GRADE OF CMP SHALL BE SAME AS EXISTING

STREAM CHANNEL UNLESS OTHERWISE SHOWN

ON THE DRAWINGS

SUBGRADE

1.25

SELECT BACKFILL MATERIAL FOR BEDDING

REFER TO FP-03 - SECTION 602,

FP-03 - SECTION 209.09, 209.101

" M

IN

" M

IN

/2

P

IP

E Ø

24"

" D

EP

TH

LC SUBGRADE

1.25

VARIABLE SLOPE

EXISTING STREAMBED

1 1/2 PIPE Ø

OR 5' MIN. CATCH BASIN

SELECT BACKFILL MATERIAL FOR BEDDING

REFER TO FP-03 - SECTION 602,

FP-03 - SECTION 209.09, 209.10

CONSTRUCT DITCH BLOCK OF ROCK

WITH 12" MAX. AVERAGE DIAMETER.

HEIGHT OF DITCH BLOCK SHALL BE NO

GREATER THAN THE TOP OF THE CULVERT

25' TAPER EACH SIDE

0°

B

EG

IN

P

R O

JE

C

T

EN

D

P R O

JE

C T

CL

TYPICAL CULVERT INSTALLATION AT LIVE STREAMS

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:01/05

KOSCIUSKO ROADS REHABILITAION TYPICAL CULVERT DETAILS

THORNE BAY RANGER DISTRICT

X. XXXXXXX XX/XX/XX

1/19/05 CORRECTED DWG SJC / KWB

2/23/07 UPDATED SPECS G.BITTORF

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

ACAD.DWG

4 8

POLYETHYLENE (PE) CULVERT

CELL CLASS.

NO. 334433C

0.075" / 14

0.075" / 14

0.060" / 16

0.105" / 12

ALUMINUM

INCH / GAGE

ALUMINUM & STEEL CULVERT CORRUGATIONS

SHALL CONFORM TO THE FOLLOWING:

60 0.079" / 14

0.109" / 12

INCHES

18 TO 36

SIZE

PIPE

STEEL

0.079" / 14

0.064" / 16

MIN.

12'24" 12" 12"24"

5" x 1"

5" x 1" 30" 36" 12"

12" 10' 10'

10'

11' 12'

12"48"

36" 30"

40" 12" 12"

12"

CORRUGATED

CELL CLASS.

NO. 315412C

POLYETHYLENE (PE) CULVERT

PER ASTM D 3350

2 2/3" X 0.5"

2 2/3" X 0.5"

CORRUGATIONS

18"

PIPE

SIZE

Ø

12"

MIN.

COVER

10'

CELL CLASS.

NO. 324420C

MAXIMUM FILL

HEIGHT IN FEET

12'

PIPE

SIZE

Ø

18" 12"

MIN.

COVER

28'22'

26'21'

25' 21'

22' 31' 27'

28'

CELL CLASS.

NO. 335434C

MAXIMUM FILL

HEIGHT IN FEET

18' 24'

RIBBED

TYPICAL CULVERT INSTALLATION FOR DITCH RELIEF

TYPICAL CATCH BASIN WITH DITCH BLOCK

CULVERT SKEW DIAGRAM

PLACE CULVERT IN ALIGNMENT WITH THE NATURAL STREAM

CHANNEL. WHERE NO CHANNEL IS APPARENT INSTALL

CULVERTS AT SKEWS SHOWN ON THE DRAWINGS OR AS DIRECTED BY THE C.O.

MINIMUM CULVERT GRADES SHALL BE 5% OR 1/2 OF THE TRIBUTARY DITCH GRADE.

CAMBER WILL DEPEND ON SITE CONDITIONS. MAXIMUM CAMBER IS 2% (STEEL OR ALUMINUM

CULVERTS) OR 1% (POLYETHYLENE CULVERTS) OF CULVERT LENGTH BY NO MORE THAN 2.5-IN AT

CENTER.

CATCH BASIN CONSTRUCTION IS REQUIRED WHEN SHOWN ON THE DRAWINGS AND AT ALL

INSTALLATIONS WHERE THE INLET IS LOWER THAN NATURAL GROUND.

CULVERT INLETS AND OUTLETS SHALL EXTEND 24-IN BEYOND THE TOE OF THE FILL UNLESS AGREED

TO BY THE C.O.

MINIMUM COVER OVER CULVERTS UNLESS OTHERWISE SHOWN ON THE DRAWINGS IS 12-IN.

PLACE RIPRAP AT SITES SHOWN ON THE DRAWINGS OR AS DIRECTED BY THE C.O. MINIMUM WIDTH

OF RIPRAP IS 1.5 PIPE DIAMETERS. CLASS 4 (MIN) SIZE.

THE CONTRACTOR SHALL PROVIDE THE C.O. A LIST OF AS- SLOPE STAKED CULVERT LENGTHS AND

LOCATIONS.

7.

8.

5.

6.

4.

3.

2.

1.

NOTES

MINIMUM WIDTH OF APRON

IS 2 PIPE DIAMETERS.

DESIGNED ROADWAY WIDTH 14 FT MIN.

EXISTING

TYPICAL AGGREGATE OVERLAY SECTION

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

KOSCIUSKO ROADS REHABILITATION TYPICAL OVERLAY SECTION

THORNE BAY RANGER DISTRICT

5 8

CL

2% 2%

RECONDITIONED SUBGRADE

EXISTING GROUND

HAUL FOR AGGREGATE IS INCIDENTAL TO PAY ITEM 30107. NO

SEPARATE PAYMENT WILL BE MADE FOR HAUL.

IN THOSE AREAS WHERE THE EXISTING ROAD, AFTER RECONDITIONING, IS

WIDER THAN THE DESIGNED WIDTH OF AGGREGATE, CENTER THE LIFT OF

AGGREGATE ON ROAD SURFACE AND FEATHER TO EXISTING SHOULDERS.

IN TURNOUT, TURNAROUND AND INTERSECTION AREAS, PLACE THE

ADDITIONAL WIDTH OF AGGREGATE ADJACENT TO CENTERLINE LIFT AND

COMPACT TOGETHER.

CONSTRUCT AGGREGATE FILL SLOPES TO 1(V):2.0(H).

CROWN THE SUBGRADE AND FINISHED GRADE TO 2 PERCENT.

THE CONTRACTOR SHALL DETERMINE THE CORRECT LOOSE DEPTH FOR

SPECIFIED COMPACTED LAYER THROUGH THE USE OF TEST STRIPS.

CONSTRUCT INTERVISIBLE TURNOUTS OR AT LOCATIONS DESIGNATED BY

THE C.O.

FINISHED DIMENSIONS OF PLACED AGGREGATE

COMPACTED IN PLACE AGGREGATE

ROAD RUNNING SURFACE

TURNOUTS

TURN AROUNDS

INTERSECTIONS

12 IN. DEPTH

14 FT. WIDTH

50 FT. LENGTH X 10 FT. WIDTH

WITH 25 FT. TAPERS EACH END

COMPACTED AGGREGATE LIFT

20 FT. LENGTH X 14 FT. WIDTH

10 FT. LENGTH X 20 FT. WIDTH

GENERAL NOTES

1.

2.

3.

4.

5.

6.

1. Remove vegetation, including trees, on roadway surfaces and roadsides within the clearing limits.

2. For Method A, cut brush back 5 feet slope distance beyond bottom of ditch or 15' slope distance from road shoulder, whichever less, and 10 feet slope distance beyond edge of road shoulder on fill slope. Cut all brush within clearing limits which is less than or equal to 6 inches in diameter measured 6 inches above the ground.

3. For Method B, cut all brush within 5 feet of culvert inlets.

Cut all brush to 6 inches above ground. Method B includes fekking large diameter trees within specified limits. Treat merchantable timber as specified in section H.9 and 201.04.

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 fill 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 extra visibility on inside of blind corners.

NOTES

10'5'

5'

ALL ROADS IN THIS CONTRACT ARE BRUSHING METHOD A

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:03/05

KOSCIUSKO ROADS REHABILITATION ROADSIDE BRUSHING

THORNE BAY RANGER DISTRICT

R.JACOBSON

6 8

(THIS DRAWING NOT TO SCALE)

THIS AREA TO BE CLEARED ONLY IF

ROAD

DEVELOPMENT PLAN

TO THE BACKWALL BENCH.

REHABILITATION PLAN

REQUIREMENT IS WAIVED BY THE COR.

OF THE ACCESS ROAD WITH ROAD NO. 6030 AND BY ROUGHING UP THE ACCESS

THE ACCESS ROAD WILL BE OBLITERATED BY CUTTING A DITCH AT THE JUNCTION

PROVISIONS FOR FUTURE QUARRY ACCESS WILL BE PROVIDED UNLESS THIS

ACCESS ROAD SURFACES, WILL BE SEEDED AND FERTILIZED IN ACCORDANCE WITH

ALL DISTURBED AREAS, SUCH AS OVERBURDEN PILES, BENCH SURFACES, AND

A MINIMUM OF 12-IN OF OVERBURDEN WILL BE EVENLY SPREAD OVER THE

ALL OVERSIZE ROCK WILL BE PLACED AGAINST THE SIDES OF THE QUARRY NEXT

QUARRY DEVELOPMENT PLAN

DECKED IN THE MUSKEG LEFT OF 27+20

ALL MERCHANTABLE TIMBER WILL BE REMOVED FROM THE QUARRY SITE AND

OVERBURDEN WILL NOT BE PLACED IN THE SMALL STREAM BORDERING THE QUARRY.

QUARRY IS LOCATED RIGHT OF STA 27+58 ON ROAD NO. 6030

QUARRY DEVELOPMENT TYPICAL SHEET.

TEST SHOT OF APPROX. 2000 CU. YD. IS PLANNED.

DEVELOPMENT WILL COMPLY WITH THE GENERAL NOTES SHOWN ON THE PIT &

ROAD AND ROAD NO. 6030

CONTAINED BETWEEN THE ACCESS

THE OVERBURDEN CANNOT BE

TIMBER FROM QUARRY SITE

DECKED IN MUSKEG

CLEARING LIMIT FLAGGED

2+720

ROAD SURFACE.

CONTRACTOR DATE

2.

3.

4.

5.

SPECIFICATIONS.

QUARRY FLOOR.

1.

2.

3.

4.

1.

ELEV 1160

APPROX.

OBD

DISTRICT RANGERCOR DATE DATE

40-FT

15-FT MIN

CROSS SECTION VIEW

3% SLOPE

68%

OBD

ACCESS

ROADLC

CL

72%

SOIL

APPROX.

ELEV 1260

OBD

RD. NO. 6030

PLAN VIEW

ESTIMATE OF VOLUME = 24,850 CU. YD.

OVERBURDEN

ACCESS ROAD

STREAM

18-IN CMP

15-FT MIN

TOTAL POUNDS OF POWDER IN SHOT

(INCLUDING PRIMERS) = 3204 lbs.

MAX. POUNDS OF POWDER PER 8 ms DELAY = 1090

POWDER FACTOR = 1.2 lb. PER CUBIC YARD

NAME OF BLASTER IN CHARGE = BOREHOLE BERRY

PLANNED SHOT DATE = JUNE 15, 2015

NUMBER OF CUBIC YARDS IN SHOT = 2670

"HI DRIVE" PRIMER WITH 125 to 250 ms DU PONT ELECTRIC

BLASTING CAP LOCATED AT

BOTTOM OF HOLE WITH ONE

3-IN x 6-IN STICK OF TOVEX

USED FOR CUSHION.

TYPICAL LOADED HOLE

5-FT STEMMING

3.5-IN DIA HOLE

m s

19,620 CU.YD.

TYPE OF EXPLOSIVES = TOVEX 800, 3" X 16"

SECOND

QUARRY BLASTING PLAN

RIGHT OF STA. 27+58 ON ROAD NO. 6030

THIS PLAN IS FOR THE FIRST TEST SHOT IN THE QUARRY

ACTUAL MILLESECOND DELAY USING

FIRING SEQUENCE - SEQUENCE OF DELAYS

IS THE SAME FOR ALL 5 ROWS

PRODUCTION

STA 27+58

LOCATED IN BOTTOM OF HOLE

TOTAL NUMBER OF HOLES IN SHOT = 45

TYPE OF PRIMER & LOCATION IN HOLE =

STEMMING = 5-FT

BURDEN = 8-FT

DENSITY = 20 lbs./cu. yd.

2" DIA STICK OF HI DRIVE

HOLE DEPTH = 10-FT to 30-FT

BOREHOLE SIZE = 3.5-IN

SPACING = 10-FT

SHOT

SEQUENTIAL TIMER

16 3

SEQUENTIAL TIMER

FR

EE FA

C E m s m s m s m s m s m s m s m s

RD. NO. 6030

PRODUCTION

SHOT

TEST SHOT

13,080 CU.YD.

FIRST

FLOOR

QUARRY

RO

CK F

AC

E

EXIST.

M A X.

15'

MIN

MIN

15'

MIN

15'

CLEARING LIMITS

OVERBURDEN

M A X.

E.O.P.

MP XX.XX

E.O.P.

MP XX.XX

RD. XXXXX RD. XXXXX

R D

XX

XX

X

RD

. X

XX

XX

TO

XX

X M .A

.F.

MP XX.XX =

MP XX.XX

LEGEND

DESIGNATED MATERIAL SOURCE

(ROCK QUARRY)

DIRECTION OF HAUL

MP MILE POST

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:02/05

KOSCIUSKO ROADS REHABILITATION PIT & QUARRY DEVELOPMENT

THORNE BAY RANGER DISTRICT

X. XXXXXXX XX/XX/XX

SJC 2/24/05

K.BRAY 2/24/05

XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

pit_and_quarry_rev.DWG 7 8

NOTES

ALL PITS AND QUARRIES SHALL BE APPROVED IN WRITING BY THE C.O. PRIOR TO

EXPLORATION, CLEARING OR DEVELOPMENT.

REMOVE ALL OVERBURDEN TO SOLID ROCK FOR A MINIMUM DISTANCE OF 15'

FROM THE WORKING FACE.

SLOPE THE CUT BANK OF THE OVERBURDEN TO THE NATURAL ANGLE OF REPOSE

BUT IN NO CASE STEEPER THAN 1:1.

WITHIN THE CLEARING LIMITS:

- MAXIMUM STUMP HEIGHT SHALL BE IN ACCORDANCE WITH SPECIFICATIONS.

- STABLE TREES UP TO 6" dbh NEED NOT BE CUT IF THEY WILL NOT INTERFERE WITH

BACK SLOPE STABILITY.

- STUMPS AND BRUSH MAY BE LEFT IN PLACE, EXCEPT THAT ALL STUMPS THAT

PROTRUDE FROM EXCAVATED BANKS OR THAT HAVE THE POTENTIAL TO BECOME

DISLODGED AT ANY LATER DATE SHALL BE REMOVED.

DISPOSE OF OR STOCKPILE FOR LATER USE ALL OVERBURDEN, CLEARING,

MERCHANTABLE TIMBER AND GRUBBING DEBRIS AS SHOWN ON THE QUARRY

DEVELOPMENT PLAN.

FELL ALL DEAD TREES AND SNAGS WHICH ARE SUFFICIENTLY TALL TO REACH THE

WORK AREA.

LEAVE THE PIT/QUARRY IN A NEAT, ORDERLY AND WELL-DRAINED CONDITION.

REMOVE ALL OVERHANGS AND LOOSE ROCK.

AFTER EXCAVATION IS COMPLETE CLEAN THE AREA AND LEAVE AS SHOWN ON

THE QUARRY DEVELOPMENT PLAN. TREAT ANY ACCESS ROAD AS SHOWN ON THE

QUARRY DEVELOPMENT PLAN.

TEST SHOTS OF 1300 to 2600 CUBIC YARDS ARE REQUIRED AT ALL QUARRY SITES

IF DESCRIBED IN THE SPECIFICATIONS.

LEAVE NO MORE THAN 5% BY VOLUME OF OVERSIZE MATERIAL IN THE QUARRY.

BREAK DOWN ANY MATERIAL OVER THIS VOLUME AND USE AS SPECIFIED IN

SECTIONS 651.

PROVISIONS FOR FUTURE QUARRY DEVELOPMENT ACCESS WILL BE PROVIDED,

UNLESS THIS REQUIREMENT IS WAVED BY THE CO.

INSTALL AND MAINTAIN A COMMERCIALLY AVAILABLE RAIN GAUGE MEASURING IN

UNITS OF INCHES AND FRACTIONS OF INCHES IN ACCORDANCE WITH SECTION

205.08.

HAUL WILL NOT BE ALLOWED BEYOND DESIGNATED SOURCES UNLESS OTHERWISE

SHOWN ON THE DRAWINGS OR AGREED TO BY THE CO.

SEED AND FERTILIZE ALL DISTURBED AREAS SUCH AS OVERBURDEN PILES AND

BENCH SURFACES IN ACCORDANCE WITH SECTION 625.

SAMPLE QUARRY DEVELOPMENT PLAN SAMPLE QUARRY BLASTING PLAN

SAMPLE HAUL DIAGRAM

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

13.

11.

12.

14.

50'-0"

10'-0"

TYPICAL

TYPICAL

50'-0"

TYPICAL

DITCH FLOWDITCH FLOW

S

TR

EA

M

F

LO

W

PLACE SILT FENCE ALONG WATERWAY,

TERMINATE AT END OF CUT, TYPICAL

STRAW BALES, CENTERED IN DITCH LINE

SILT FENCE, TYPICAL

SILT FENCE, SECURE AROUND INLET

TO KEEP DEBRIS OUT OF STREAM

SILT FENCE, TYPICAL

APPROX. 6 ' APPROX. 6'CENTER ON DITCHTYPICAL

135°

135°

DITC

H FL

OW

STRAW BALES (2)

'-6

'-0

GEOTEXTILE FABRIC FILTER CLOTH,

SECURE TO TOP OF POSTS

WOVEN WIRE FENCE FABRIC

BOTTOM OF SILT FENCE BURIED

IN TRENCH MINIMUM 6" DEPTH

SECURE EACH BALE W/

AT LEAST 2 STAKES BURIED

MINIMUM 12" DEPTH

DITCH FLOW

APPROX. 10' TYPICAL

POST

WOVEN WIRE FABRIC

GEOTEXTILE FABRIC

BRUSH BARRIER

SEE NOTES

GEOTEXTILE FABRIC, BURY

BOTTOM EDGE ±6"

ROAD FILL SLOPE

EXIST.

GROUND

VARIES 3' TO 5' VARIES 5' TO 10'

TYPICAL SEDIMENT CONTROL AT CULVERTS

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:01/05

KOSCIUSKO ROADS REHABILITATION EROSION CONTROL DEVICES

THORNE BAY RANGER DISTRICT

X. XXXXXXX XX/XX/XX

SJC 01/2005

K. BRAY 01/2005

XX/XX/XX XXXXXXXXXX X. XXXXXX

XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

ACAD.DWG

8 8

NOTES:

SILT FENCE CONSISTS OF WOVEN WIRE FENCE FABRIC WITH A MAXIMUM 6 INCHES MESH, MINIMUM HEIGHT

30 INCHES.

THE CO MAY REQUIRE ADJUSTMENTS TO ACTUAL LENGTHS OR LOCATIONS TO FIT FIELD CONDITIONS.

INSPECT SILT FENCES AFTER EACH RUNOFF EVENT AND IMMEDIATELY REPAIR ALL EROSION ALONG EDGES

AND BOTTOM.

ACCUMULATED DEPTH OF SEDIMENT SHALL NOT EXCEED ONE HALF THE ORIGINAL HEIGHT OF THE SILT FENCE.

IN AREAS DESIGNATED FOR BRUSH BARRIERS, LIMIT CLEARING TO TREES, SHRUBS AND PLANTS LESS THAN 4

INCHES IN DIAMETER. GRUBBING SHALL NOT BE PERFORMED IN THESE AREAS.

BRUSH BARIER SHALL BE CONSTRUCTED APPROX. PARALLEL TO ORIGINAL GROUND CONTOUR. USE WELL-INTERMINGLED MASS OF BRUSH, TREES, TRIMMINGS, ETC. BARRIER SHALL BE POROUS ENOUGH TO ALLOW WATER TO FILTER THROUGH. SECURE BY PLACING HEAVIER MATERIAL (TREES, LOGS, ETC.) ON TOP

OF AND THROUGHOUT THE BRUSH.

ADJOIN BRUSH BARRIER WITH ROADWAY SLOPE ON THE LOW END AS NEEDED TO CONTAIN SEDIMENTS.

3.

4.

2.

1.

TYPICAL SILT FENCE INSTALLATION FOR DITCHES

POST

TYPICAL SEDIMENT CONTROL AT CULVERTS

TYPICAL BRUSH BARRIER

5.

6.

7.