Specifications_-_Drawings_-_Owl_Creek.pdf

N

N

N

N

START WORK

ROAD 27N98

START WORK

ROAD 26N23

END WORK

ROAD 26N23

END WORK

ROAD 27N98

OWL CREEK

CULVERT

W

W

W

W

W

W

W

SITE PLAN

SCALE 1" = 40'

NOTES:

1. STOCKPILE ALL EXCAVATED STREAM MATERIAL FOR

REUSE IN COLLECTION POOL WORK; REFER TO

COLLECTION POOL DETAILS. SHEET 19.

RIPRAP GRADE CONTROL AND BANK

STABILIZATION STRUCTURES.

186 CY RIPRAP. SHEETS 22-24

RE-GRADE STREAM CHANNEL TO ALIGN

WITH NEW CULVERT INLET AND OUTLET.

520 CY EXCAVATION, NOT INCLUDING

RIPRAP SUBEXCAVATION. SHEET 22

REPLACE EXISTING 30" CMP WITH NEW 81"X

59" CMPA. SHEETS 22 & 25

RIPRAP GRADE CONTROL STRUCTURE. 27

CY RIPRAP. SHEETS 22-23

FOREST ROAD 26N23

ABANDONED MINE

WATERLINE CONTROL VALVE

AND AIR RELEASE VALVE.

SHEET 20

COLLECTION POOL & WATER INTAKE.

15 CY EXCAVATION, NOT INCLUDING

RIPRAP SUBEXCAVATION. 12 CY

RIPRAP. SHEETS 19 & 20

NEW 4" HDPE WATERLINE.

SHEET 18 & 20

INSTALL 10,000 GALLON

CONCRETE WATER STORAGE

TANK. SHEET 21

TANK OVERFLOW AND DRAIN

PIPES. SHEET 21

NEW 4" WATER TANK DRAIN LINE WITH

OUTLET BANK PROTECTION. 5 CY RIPRAP.

SHEETS 18 & 20

RAISE ROADBED. SHEET 26. RAISED

ROADBED TO BE SURFACED IN ROAD

WORK LIST MP = 2.183 - 2.221

ARMORED DIP IN ROAD WORK LIST MP =

2.202

DITCH RECONDITIONING IN ROAD WORK

LIST MP = 2.202

CULVERT HEADWALL AND OUTLET SLOPE

ARMORING. 79 CY RIPRAP

W

W

W

W

W

W

W

W

W

Elevation

Station

0+00 1+00 2+00 3+00 3+60

-2.4%

-4.6%

-8.5%

S

TA

.0

EL

EV

.6

.0

EL

EV

.3

.0

EL

EV

.5

.3

EL

EV

.9

-4.5%

.5

EL

EV

.0

.7

EL

EV

.0

WATERLINE PROFILE VIEW

VERTICAL SCALE 1" = 30'

HORIZONTAL SCALE 1" = 30'

WATERLINE PLAN VIEW

SCALE 1" = 30'

0+00 1+00

2+00

STA 0+06

WATERLINE INTAKE

(APPROX.)

STA 0+31.7

CURB VALVE

& BOX

STA 2+65.3

STORAGE TANK INLET

STA 0+00

CENTER OF

COLLECTION POOL

ELEV = 2013.6

STA 3+04.4

TEE: DRAIN AND OVERFLOW

3+00

CURB VALVE & BOX

(WATERLINE CONTROL VALVE

AND AIR RELEASE VALVE)

COLLECTION POOL &

WATERLINE INTAKE

NEW 4" HDPE

WATER SUPPLY LINE

96" RADIUS

COLD BEND

10,000 GALLON PRECAST

CONCRETE WATER STORAGE

TANK

IF REQUIRED, CONSTRUCT EMBANKMENT

FOR CRANE ACCESS DURING WATER TANKS

PLACEMENT

CURB VALVE & BOX (TYP.)

FOR DRAIN LINE

PLACE RIPRAP ALONG FALL

LINE OF SLOPE; END AT EDGE

OF CREEK

4" DRAIN LINE

DRAIN LINE OUTLET

FO

RE

S T

RO

AD

N2

EXISTING ROADBED

IN

TA

KE

EXISTING GROUND

WATERLINE INVERT

COLLECTION POOL CROSS SECTION

NOT TO SCALE

COLLECTION POOL PLAN VIEW

NOT TO SCALE

FLOW

FLOW

PROFILE VIEW

NOT TO SCALE

10'

12"

12"

12"

A

12'

A

B

WEIR STONE INSTALLATION

NOT TO SCALE

FLOW

3'

NOTES:

1. CONSTRUCT COLLECTION POOL SEAL TO INCLUDE SOIL WITH 20% MINIMUM CLAY CONTENT.

CLAY TO MEET FSSS 704.13. UTILIZE EXCAVATED MATERIALS AND IMPORT CLAY AS REQUIRED

BY SPECIFICATIONS.

2. SUBMIT A STREAM DIVERSION/DEWATERING PLAN TO THE CONTRACTING OFFICER FOR

APPROVAL PRIOR TO THE COMMENCEMENT OF IN-STREAM WORK. SEE SHEET 29.

8'

4" GALVANIZED/HDPE

ADAPTER

COLLECTION POOL SEAL

KEYED RIPRAP OUTFALL

PROTECTION, CLASS 4.

KEYED RIPRAP OUTFALL

PROTECTION, CLASS 4.

4" HDPE WATERLINE

ANGULAR KEYED ROCKS WITH

MINIMUM ROCK SIZE OF 2' X 3' X 1.5'.

CONSTRUCT TO PRODUCE HIGH

WATER ELEVATION AS SHOWN.

WATERLINE INTAKE INLET

ELEV = 2014.6 (SEE DETAIL

ON SHEET 20)

HIGH WATER LEVEL

EMBED WATERLINE INTAKE ALONG THE SIDE

SLOPE OF THE COLLECTION POOL; ALLOW

THE INTAKE TO PROTRUDE 6" ABOVE THE

SLOPE ROCK

CONSTRUCT CLAY SOIL LAYER (NOTE #1)

TO 12" THICKNESS USING COMPACTION

METHOD B. KEY 8" CUBIC DIMENSION

RIPRAP ROCKS (FSSS TABLE 705.02) IN A

SINGLE LAYER INTO POOL SIDES AND

BOTTOM.

12" DIAMETER STONES KEYED INTO

TOP RIM OF POOL.

TOP OF EDGE ELEV = 2017.6

FOUNDATION ROCK; FULLY EMBED

INTO CREEK AND COVER WITH

MATERIAL FROM STREAM

EXCAVATION (6 INCH COVER)

ROCK WEIR KEYED INTO

EMBANKMENT

ROCK WEIR STRUCTURE (SEE

DETAIL ON THIS SHEET)

KEY INTO PLACE 12" STONES

ALONG SIDES OF CHANNEL

LIMIT OF EXCAVATION

INSTALL TEMPORARY STREAM

DIVERSION UPSTREAM OF

NEW COLLECTION POOL

DURING CONSTRUCTION

WATERLINE INTAKE

COLLECTION POOL HIGH WATER

SURFACE ELEV = 2016.6

COLLECTION POOL BOTTOM

ELEV = 2013.6

B

C

EN

TE

R

LI

N E

D

EP

TH

V A R

IE

S

EXISTING GROUND

30°

WATERLINE INTAKE DETAILS

NOT TO SCALE

DAYLIGHT OUTLET DRAIN DETAILS

NOT TO SCALETRENCH CROSS SECTION

NOT TO SCALE

24"

4"

12"

VALVE AND BOX DETAIL

NOT TO SCALE

VALVE

OPERATING

WRENCH

UNCLASSIFIED NATIVE

MATERIAL

4" HDPE PIPE. MAINTAIN 1%

MINIMUM SLOPE TO DRAIN

FOR SEASONAL USE.

1/2" MINUS BEDDING

MATERIAL, 4" DEEP

3' TO 4'

EXCAVATION TO MEET OSHA TRENCH

SAFETY REQUIREMENTS

3" MINUS NATIVE MATERIAL

6" WIDE DETECTABLE

MARKING TAPE

5 CY CLASS 4 RIPRAP

APRON, 2 FT WIDE 3FT

DEEP, EXTEND TO CREEK

AS SHOWN ON SHEET 4.

EXISTING GROUND

"CHRISTY" CONCRETE VALVE

BOX & EXTENSIONS WITH

LOCKING LID MARKED

"WATER"

TOP OF BOX 2" ABOVE

GRADE- SLOPE BACKFILL TO

DRAIN AWAY FROM BOX

BRASS VALVE, FULL UNION

OR EQUIVALENT

3" MINUS NATIVE MATERIAL

UNDER PIPE AND VALVE, 6

INCHES DEEP

GALVANIZED STEEL PIPE

HDPE PIPE

GSP/HDPE TRANSITION

FITTING, MIN. 5 FT FROM

EDGE OF BOX

COMPACTED FILL,

METHOD B

FURNISH ONE VALVE OPERATING WRENCH,

6' LONG SHAFT

SOCKET TO FIT NUT ON TOP

OF VALVE

4" N-12 DOUBLE

WALL DRAIN PIPE,

SLOPE TO DRAIN

DRAIN OUTLET SET ON

RIPRAP APRON.

WATER SURFACE

BOTTOM OF COLLECTION

POOL ELEV = 2013.6

GALVANIZED STEEL SUCTION STRAINER, 3/8"

PERFORATIONS. GALVANIZED STEEL, THREADED

ONTO 4" GSP. STRAINER PERFORATION AREA 100

SQ INCH MINIMUM. CONTRACTOR SHALL SUBMIT

PROPOSED PRODUCT FOR APPROVAL.

NO. 4 GALVANIZED WIRE

SCREEN WRAPPED AROUND

SUCTION STRAINER

TWO STAINLESS STEEL PIPE

CLAMPS SECURING

GALVANIZED WIRE SCREEN.

INLET PIPE SHALL DAYLIGHT

AT LEAST 12 INCHES ABOVE

BOTTOM OF COLLECTION

POOL.

TO DRAINOUTLET

LEGEND

1 4" CURB VALVE (FULL UNION OR EQUIVALENT) AND BOX

2 4" N-12 (DOUBLE WALL) DRAIN LINE FROM WATER STORAGE

TANK TO OUTLET NEAR CULVERT INLET, SLOPE TO DRAIN

3 4" GSP OVERFLOW LINE FROM WATER STORAGE TANK

4 4" SIDE PORT, TANK DRAIN SET 12" ABOVE BOTTOM OF TANK (TYP.)

5 4" SIDE PORT, TANK OVERFLOW SET 9" BELOW TOP OF THE TANK

6 PIPE ADAPTER, GALVANIZED STEEL PIPE (GSP) TO DRAIN PIPE

7 PIPE ADAPTER, HDPE TO GSP

8 4"X4"X4" GALVANIZED TEE

9 4" GALVANIZED UNION

10 4" GALVANIZED NIPPLE

11 24" DIAM. 12" DEPTH CONCRETE RISER AND IRON LID, SET FLUSH WITH

FINISHED GRADE

INSTALLATION SCHEMATIC

NOT TO SCALE.

TANK PLAN VIEW

NOT TO SCALE

TANK CROSS SECTION

NOT TO SCALE

18" MIN.

8' MIN.

4" G

SP

4" G

SP

4" GSP

FLO

W

4" HDPE

FROM INTAKE

COLLE

CTIO

N PO

OL

10,000 GALLON WATER STORAGE TANK

(JENSEN PRECAST 2X HZ-5000), OR TWO

5,000 GALLON WATER STORAGE TANKS (2X

HP5000), OR APPROVED EQUAL.

TANK JOINT. TANK

INSTALLATION BY

MANUFACTURER.

10,000 GALLON WATER STORAGE TANK

(JENSEN PRECAST 2X HZ-5000), OR TWO

5,000 GALLON WATER STORAGE TANKS (2X

HP5000), OR APPROVED EQUAL.

UNCLASSIFIED BORROW

24" DIAM. CONCRETE RISER

WITH LOCKABLE IRON LID, SET

RISER FLUSH WITH FINISHED

GRADE.

OPTION: USE TRENCH

SUPPORTS IN LIEU OF LAYING

BACK SLOPE PER OSHA

REQUIREMENTS.

NATIVE UNDISTURBED

MATERIAL OR COMPACT TO

95% MAXIMUM DENSITY

LADDER

EXISTING

GROUND

NATIVE BACKFILL

EXISTING SLOPE

BLEND INTO HILLSIDE

UNDERGROUND PRECAST

CONCRETE TANK(S)

12" TYP.

Elevation El ev at io n

Station

0+00 1+00 2+00 3+00

-50.0%

-9.0%

-50.1%

-9.0%

-9.0% -9.0%

-9.0%

-9.0% -9.0%

W

W

W

OWL CREEK PROFILE VIEW

VERTICAL SCALE 1" = 30'

HORIZONTAL SCALE 1" = 30'

OWL CREEK PLAN VIEW

SCALE 1" = 20'

G B S

TA

.5

EL

M A

TC

H G

R A D

E

0+

1+

2+00

3+00

G B S

TA

.9

EL

.3

G B S

TA

.9

EL

.1

C U

LV

IN

V S

TA

.1

IN

V E

L

.9

C U

LV

IN

V S

TA

.5

IN

V E

L

.2

G B S

TA

.5

EL

.0

G B S

TA

.9

EL

.3

G B S

TA

.5

EL

.2

G B S

TA

.5

EL

.2

V

G B S

TA

.9

EL

.3

FO

RE

ST

R

OA

D

N2

EDGE OF

CHANNEL

INCISION.

END CHANNEL

WIDENING AT THE

INLET OF THE NEW

CULVERT

LIMITS OF

EXCAVATION

SLOPE STABILIZATION RIPRAP

ALONG CURVE (EAST BANK)

8' WIDE KEYED RIPRAP GRADE

CONTROL STRUCTURE

SLOPE STABILIZATION RIPRAP

KEY SLOPE STABILIZATION

RIPRAP INTO HILLSIDE

START CHANNEL WIDENING; FINISHED

GRADE SHALL MATCH PROFILE &

ELEVATIONS PROVIDED BELOW

TAPER EDGES OF THE GRADE CONTROL

STRUCTURE INWARD TO BLEND INTO

EXISTING CHANNEL

8' WIDE KEYED RIPRAP

GRADE CONTROL

STRUCTURE

NEW 81"X59" CMPA

EXISTING GROUND

FINISHED GRADE

10' 8' 15'

4' 3'

FLOW

RIPRAP GRADE CONTROL

STRUCTURE PROFILE VIEW

NOT TO SCALE

SLOPE STABILIZATION TYPICAL

CROSS SECTION

NOT TO SCALE

3'

8'

TYP.

1.5:1

3'

CHANNEL EXCAVATION TYPICAL

CROSS SECTION

NOT TO SCALE

1.5:1

1.5:1

8'

TYP.

GRADE CONTROL CROSS SECTION

NOT TO SCALE

10'

TYP.

3' TYP.

3'

TYP.

CLASS 4 RIPRAP, 36" DEEP

FILL ALL VOIDS IN RIPRAP APRON WITH

NATIVE STREAM MATERIAL FROM

EXCAVATION.

CLASS 4 RIPRAP, 36" DEEP

EXCAVATE CHANNEL TO THE

GRADES SHOWN ON THE

PROFILE VIEW, SHEET 22

3' DEEP x 3' LONG KEYED

RIPRAP KEYWAY

SEE GRADE CONTROL CROSS

SECTION DETAIL BELOW

EXISTING CHANNEL FLOWLINE

3' DEEP X 3' LONG

KEYED RIPRAP KEYWAY

EXISTING GROUND

SLOPE STABILIZATION RIPRAP;

RE-BUILD EMBANKMENT BEHIND

RIPRAP OR INSTALL RIPRAP AT A

SLOPE FLATTER THAN 1:1

LIMIT OF EXCAVATION

EXISTING GROUND

LIMIT OF EXCAVATION

SLOPE STABILIZATION RIPRAP WITH

RE-BUILT EMBANKMENT BEHIND ROCK;

REFER TO SLOPE STABILIZATION TYPICAL

CROSS SECTION ON THIS SHEET

EXISTING GROUND

ADDITIONAL HEIGHT MAY BE

REQUIRED TO BLEND RIPRAP

INTO THE EXISTING GROUND;

REFER TO CROSS SECTIONS

ON SHEET 24.

SLOPE STABILIZATION RIPRAP

(EAST BANK)

INSTALL KEYWALL, 3 FT DEEP,

WHERE SHOWN ON THE

DRAWINGS

RIPRAP APRON WITH NATIVE

BACKFILL IN VOIDS

NOTES:

1. KEY CLASS 4 RIPRAP IN TWO LIFTS.

2. MIX NATIVE STREAM BED MATERIAL FROM EXCAVATION WITH RIPRAP.

3. PLACE SECOND LIFT AS DESCRIBED ABOVE IN (1.) AND (2.)

4. CONSULT COR PRIOR TO PROCEEDING IF BEDROCK IS ENCOUNTERED DURING SUBEXCAVATION

FOR KEYING RIPRAP.

0 10 20 30 40 500-10-20-30-40-50

0 10 20 30 40 500-10-20-30-40-50

0 10 20 30 40 500-10-20-30-40-50 1980

0 10 20 30 40 500-10-20-30-40-50

0 10 20 30 40 500-10-20-30-40-50

0 10 20 30 40 500-10-20-30-40-50

W

W

W

C

STA 0+69 SECTION

A

STA 0+46 SECTION

2002.0

2001.4

B

24STA 0+58 SECTION F

STA 1+02 SECTION

D

24STA 0+79 SECTION

E

STA 0+87 SECTION

@ 1994.9

2000.8

2002.0

2004.2

@ 1989.5 2000.2

B

C

D

F

E

A

1+

2005.3

@ 1990.9 2000.6

@ 1995.8

2000.8

2002.9

STREAM RESTORATION PLAN VIEW

1" = 20'

EXISTING GROUND

RIPRAP APRON

EXISTING GROUND

RIPRAP APRON

EXISTING GROUND

RIPRAP APRON

EXISTING GROUND

RIPRAP APRON

NEW EMBANKMENT, 40

CY, UNCLASSIFIED

BORROW COMPACTION

METHOD B.

APPROXIMATE MIRROR

OF SECTION A

0+50

2003.4

CULVERT TRENCH DETAIL

NOT TO SCALE

CULVERT PLAN VIEW

NOT TO SCALE

12"

3" MINUS

NATIVE

12"

6"

48"

(MIN.)

UNCLASSIFIED

NATIVE

MATERIAL

CULVERT PROFILE VIEW

NOT TO SCALE

KEY GRADE CONTROL

STRUCTURE 24"

UNDER EMBANKMENT

FLOW

4' MIN.

1.5' MIN.

STREAM

CHANNEL

ALIGN CULVERT AS STAKED

FLOW

ALIGN CULVERT AS STAKED

3' MIN.

KEY CLASS 4 RIPRAP INTO

SLOPE. 79 CY RIPRAP.

1/2" AGGREGATE

BEDDING MATERIAL

EXCAVATION TO

MEET OSHA TRENCH

SAFETY

REQUIREMENTS

EXISTING ROAD SURFACE

6-INCH COMPACTED

LAYERS (TYP.)

81"X59" CMPA

FINISHED GRADE

(CREEK)

TOE OF FILL

ROAD SHOULDERTOE OF FILL

GRADE CONTROL

STRUCTURE

NEW 81"X59"X66'

CMPA

EXISTING ROADWAY

FINISHED GRADE

7' MIN.

Elevation El ev at io n

Station

115+75 116+00 117+00 117+50

PLAN VIEW

SCALE 1" = 20'

FO

REST RO

AD 26N23

RAISE ROADBED 40 CY UNCLASSIFIED

BORROW, NO MATERIAL LARGER THAN 6",

COMPACTION METHOD B

116+00

117+

117+

PROFILE

SCALE 1" = 20'

VERTICAL SCALE EXAGGERATED 5X

TYPICAL SECTION

NOT TO SCALE

EXISTING GROUND

EXISTING ROADBED

UNCLASSIFIED BORROW, NO

MATERIAL LARGER THAN 6".

COMPACTION METHOD B.

MATCH EXISTING FILL

SLOPES

EXISTING GROUND

NEW ROAD SURFACE

5% OUTSLOPE

CENTERLINE OF DIP, SEE ROAD WORK LIST

116+60

116+26

116+50

115+88

MAGNETIC DECLINATIONFROM NOAA

NGDC 'DECLINATION CALCULATOR'

PROGRAM FOR NOVEMBER 9, 2015,

BASED ON GEOGRAPHIC POSITION

FOR CP 1.

U

CONTROL POINT NOTE:

EACH CONTROL POINT, INCLUDING BENCHMARKS,

WERE SET USING #4 X 18" REBAR, HAMMERED IN

PLACE AND FLUSH WITH THE GROUND. A PLASTIC

YELLOW CAP WAS PLACED ONTO THE TOP OF THE

REBAR, AND THE CENTER OF THE YELLOW CAP WAS

IMPRINTED WITH A SMALL DIVOT TO MARK THE

CENTER POINT. PINK FLAGGING WAS TIED TO THE

REBAR, JUST BELOW GRADE. A 3-FOOT WOOD

STAKE WAS USED TO MARK THE LOCATION OF THE

CONTROL POINT, AND WAS SET 1 TO 2 FEET FROM

THE REBAR.

CP 4

CP 1 BM 102

BM 101

CP 2

CP 3

LOCATION OF EACH CONTROL POINT :

BM 1 - BENCHMARK SET TO REPLACE ANY LOST CONTROL POINTS. LOCATED ON AN

EMBANKMENT BETWEEN ROAD 26N23 AND THE DECOMMISSIONED ROAD

(APPROXIMATELY 40 FEET NORTHEAST OF THE INTERSECTION OF THOSE TWO

ROADS).

BM 2 - BENCHMARK SET TO REPLACE ANY LOST CONTROL POINTS. LOCATED ON AN

EMBANKMENT TO THE SOUTHEAST OF THE CULVERT (APPROXIMATELY 110 FEET

TO THE EAST OF THE 30 INCH CULVERT).

CP 1 - SET ON THE SURFACE OF ROAD 26N23, ABOVE THE OUTLET OF THE 30" CULVERT.

APPROXIMATE GEOGRAPHIC POSITION FOR CP 1:

LAT 40° 07' 10.60" N

LONG 121°06.44.90" W

ELEVATION 4583.0 Ft.

CP 2 - SET ON NATIVE GROUND (ON DECOMMISSIONED ROAD), APPROXIMATELY 160

FEET FROM CP 1AT AN AZIMUTH OF 290°, AND 20 FEET FROM THE TOP OF CREEK

BANK.

CP 3 - SET ON NATIVE GROUND, APPROXIMATELY 140 FEET NORTHWEST OF CP 3, AND 5

FEET TO THE EAST OF THE TOP OF CREEK BANK.

CP 4 - SET ON THE EXTREME SOUTH END OF THE SURVEY LIMITS AND ON THE

DOWNSTREAM SIDE OF THE CULVERT. LOCATED APPROXIMATELY 165 FEET FROM

THE CULVERT OUTLET.

W

W

W

W

W

W

W

W

W

STAKEOUT POINTS PLAN VIEW

SCALE 1" = 30'

STAKEOUT POINTS

6001 6002

6007 6008

10001

10002

BM 101

BM 102

CP 2CP 3

CP 1

CP 4 LOCATED 165 FEET FROM

CULVERT OUTLET, ON WEST BANK OF

THE CREEK

FOREST ROAD 26N23

SANDBAG BYPASS DAM

LOCATION STAKED BY

CONTRACTOR AND

APPROVED BY THE COR

NOTES:

1. DEWATER EXCAVATIONS IN ACCORDANCE WITH FP-03 SECTIONS 208, 157, AND THE

REQUIREMENTS SHOWN.

2. DEWATERING IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR. DEVELOP AND

SUBMIT TO THE CONTRACTING OFFICER REPRESENTATIVE (COR) A PROJECT SPECIFIC

DEWATERING PLAN FOR APPROVAL. AT MINIMUM, THE DEWATERING PLAN MUST

INCLUDE DRAWINGS AND A WRITTEN OUTLINE ILLUSTRATING AND DESCRIBING

PROPOSED LAYOUT, METHODS, EQUIPMENT. AND ANTICIPATED STREAM FLOW

VOLUME. APPROVAL OF THE CONTRACTOR'S DEWATERING PLAN DOES NOT RELIEVE

CONTRACTOR FROM COMPLETING THE WORK AS REQUIRED. IF THE CONTRACTOR'S

METHODS ARE NOT PRODUCING ADEQUATE RESULTS, THE CONTRACTOR SHALL

RE-EVALUATE AND SUBMIT ANOTHER DEWATERING PLAN. RESUBMITTAL OF THE

DEWATERING PLAN, IF REQUIRED, IS INCIDENTAL TO THE WORK.

3. THIS SHEET ILLUSTRATES THE GENERAL DEWATERING REQUIREMENTS AND POSSIBLE

METHODS AND EQUIPMENT AND IS NOT CONSIDERED ADEQUATE OR COMPLETE FOR

THIS PROJECT.

4. CONTRACTOR IS RESPONSIBLE FOR SIZING ALL PUMPS, DAMS, BYPASS PIPE, OPEN

CHANNELS, AND ANY OTHER MEANS PROPOSED TO DIVERT THE STREAM FLOW. THE

CONTRACTOR MUST HAVE A HIGH CAPACITY PUMP ON SITE AND AVAILABLE AT ALL

TIMES.

5. SOIL EROSION AND SEDIMENT CONTROL MEASURES SPECIFIC TO THE DEWATERING

PLAN MUST BE IN CONFORMANCE WITH THE PROJECT PERMITS AND SHOWN IN THE

DEWATERING PLAN.

6. INITIAL AND ANY SEDIMENT LADEN WATER SHALL BE DISCHARGED INTO A VEGETATED

AREA AWAY FROM THE STREAM CHANNEL.

BYPASS PUMP

SUMP PUMP AT DEPTH

NEEDED TO INTERCEPT

SEEPAGE FROM BYPASS

DAM

SITE PLAN

SCALE 1" = 40'

BYPASS DAM

SCALE 1" = 10'

B

SCALE 1" = 10'

ENERGY DISSIPATOR AS NEEDED TO

PREVENT EROSION. DISCHARGE LOCATION

TO BE:

LOCATED BEYOND WORK AREA

STAKED BY CONTRACTOR

APPROVED BY COR

B

CONSTRUCT BACKWATER

DAM AS NEEDED TO

PREVENT WATER FROM

ENTERING WORK AREA

DISCHARGE AND DISPERSE

HIGHLY TURBID WATER INTO

VEGETATED AREA AWAY

FROM STREAM CHANNEL

C

A B

CBA

B E E