Atch_3_revised_drawings.pdf

FOREST SERVICE - REGION 8

UNITED STATES DEPARTMENT OF AGRICULTURE

FRANCIS MARION & SUMTER NATIONAL FORESTS

PLANS FOR PROPOSED

FSR 516 AOP ERFO

CONSTRUCTION PROJECT

Georgia Carolina South

APPROXIMATE PROJECT LOCATION

PROJECT COORDINATES:

(33.09353, -82.39519)

STATE MAP

NO SCALE

DESIGNER

DRAWN

DWG SHEET NO.

E.WHATLEY

E.WHATLEY

*SCALED TO A 11X17

ABBREVIATIONS

ADA - AMERICANS WITH DISABILITIES ACT

AGG - AGGREGATE

BOP - BEGINNING OF PROJECT

BVC - BEGIN OF VERTICAL CURVE

℄ - CENTER LINE

CMP - CORRUGATED METAL PIPE

COR - CONTRACTING OFFICER'S REPRESENTATIVE

DWG - DRAWING

EG - EXISTING GRADE

EOP - EDGE OF PAVEMENT

EOS - EDGE OF SHOULDER

EP - ENDING OF PROJECT

ETW - EDGE OF TRAVELED WAY

EVC - END VERTICAL CURVE

EXT - EXISTING

FRD - FOREST ROAD DESIGNATION

I.E. - INVERT ELEVATION

NTS - NOT TO SCALE

NFSR - NATIONAL FOREST SYSTEM ROAD

OVERALL HP - OVERALL HIGH POINT

OVERALL LP - OVERALL LOW POINT

PC - POINT OF CURVATURE

PCC - POINT OF COMPOUND CURVATURE

PRC - POINT OF REVERSE CURVATURE

PT - POINT OF TANGENCY

PVI - POINT OF VERTICAL INTERSECTION

TW - TRAVELED WAY

TYP - TYPICAL

USFS - UNITED STATES FOREST SERVICE

VC - VERTICAL CURVE

LEGEND

COMMON TO ALL

SHEETS

DETAIL

SEE DETAIL

SHEET NUMBER

CONTROL POINT

DATE

REVIEWED BY DISTRICT RANGER

DATE

DATE

APPROVED BY FOREST SUPERVISOR

SUBMITTED BY DESIGNER

DATE

REVIEWED BY FOREST ENGINEER

E. WHATLEY 03-28-18

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

TITLE SHEET

FSR 516 AOP

CONSTRUCTION

PROJECT

INDEX

SHEET

SUB

SHEET

SHEET TITLE

1 G1 TITLE SHEET

2 G2 VICINITY MAP

3 G3 ESTIMATE OF QUANTITIES

4 G4 GENERAL NOTES

5 C1 SITE PLAN

6 C2 ROADWAY PLAN AND PROFILE

7 C3 PIPE PLAN AND PROFILE

8 D1 OPEN BOTTOM ARCH DETAIL

9 D2 STREAMBED SIMULATION DETAIL

10 D3 DEWATERING PLAN

11 D4 ROADWAY AND RIPRAP DETAIL

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KEY PLAN

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THIS DRAWING

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TRUE NORTH

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U.S. ROUTE

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STATE ROUTE

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RAIL ROAD TRACK

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LEGEND

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VICINITY MAP

NO SCALE

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

E.WHATLEY

E.WHATLEY

G2

PROJECT LOCATION

(FSR 516 AOP CONSTRUCTION

PROJECT)

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

VICINITY MAP

FSR 516 AOP

CONSTRUCTION

PROJECT

MCCORMICK, SC

APPROX. 18 MILES

SE OF PROJECT

LOCATION

MCCORMICK, SC

EVANS, GA APPROX.

48.5 MILES SOUTH OF

PROJECT LOCATION

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* DENOTES CONTRACT QUANTITIES

PER FSSS SECTION 109.02 (b)

TRAIL NUMBER:

MILE POST:

ITEM NO. DESCRIPTION

15101 Mobilization

ESTIMATE OF QUANTITIES

M.P. 1.0

PAY UNIT

QUANTITIES

Lump Sum ALL

NOTES

Includes equipment, equipment cleaning requirements, fire protection, and all erosion control measures. Conform to FSSS and the FP-14.

20101 Clearing and grubbing

Acre 0.25

Includes: arc pipe installation clearing & grubbing. Place slash limbs, brush, & rocks to randomly catch sediment movement per FSSS Section 201 and scatter slash per FSSS 203.05

(f). Construction staking catchpoints shall determine clearing limits.

20801 Structure excavation *Cubic Yard

Includes arch pipe structure excavation, roadway, and foundation excavation per FSSS

Section 208. Place excess and unsuitable excavation material on site in designated area as directed by COR. Contractor can anticipate to reuse all excavation material for backfill.

62502

Seeding, dry method

Acre 0.25

62508

Mulching, dry method Acre

0.25

Mulch all culvert construction disturbed areas per FSSS Section 625 Turf Establishment. Mulch shall be weed free. Also include seeding all dewatering disturbance

Seed all culvert construction disturbed areas w/ approved seed mix per FSSS Section 625

Turf Establishment. Also include seeding all dewatering disturbance

Includes commercial furnishing of structural backfill. Structural backfill shall be used for a min. of 1 foot compacted around new arch pipe on all sides for entire length of pipe.

Structural backfill material shall conform to FP-14 Section 704.04. Place existing excess and unsuitable excavation material on site, or in turnouts, as directed by COR. Excess material shall be graded and compacted per specifications.

15201

Construction survey and staking, method I, tolerance

B

Lump Sum ALL

This method is to be applied to the survey and staking for all construction including: roadway

℄ alignment staking, arch pipe inlet invert and outlet invert elev. staking, roadway subgrade and finished grade staking, fill slopes daylight stakes, references stakes, daylight, and all catchpoint stakes.

20803 Structural backfill *Cubic Yard 623

METHOD

OF MEAS.

LSQ

LSQ

AQ

CQ

AQ

AQ

CQ

20304

Removal of one existing damaged submerged corrugated metal pipe

Lump Sum ALL

Includes removal of one existing damaged squash pipe that may be encountered during excavation. Remove in its entirety and dispose of in its entirety legally off of NF Lands per

FSSS 203.01.

LSQ

60201

23'-0" span, 11'-11" rise aluminum single radius arch pipe with 1V:2H beveled ends with reinforced foundation and receiving channel in its entirety

Foot 72

Includes furnishing & installing new aluminum single radius arch pipe and professional engineered design and placement of reinforced foundation and receiving channel. Foundation and received channel shall be designed by professional engineer. Arch pipe plates shall conform & be manufactured in conformance with AASHTO specification M219 & ASTM B209.

Bolts & nuts shall meet the provisions of ASTM a307/a449 & ASTM A563, & shall be galvanized in accordance w/ the requirements of ASTM A153 or B695. Steel anchor bolts shall conform to ASTM A307. Contractor shall submit arch pipe and reinforced foundation design for approval before purchasing.

AQ

15755 Dewatering structure Lump Sum ALL

Includes all dewatering, pollution control, protection of existing stream features, & all emergency work during storm events to prevent site damage & pollution. Construct temporary channels, temporary culverts, lining, or sandbags to divert water around disturbed areas & slopes for new pipe installation. See sheet D3 for dewatering detail. Dewatering plan shall be submitted to COR for approval per FSSS 157.03 & FP-14 Section 157.04.

LSQ

25102

Machine placed riprap, class 4 Ton 90

AQ

Includes furnishing and placing riprap and geotextile. Refer to FP-14 Section 705.02 and

FP-14 Table 705-1 for riprpap gradation. See subsheet D4 for riprap details.

30101 Aggregate base, grading C, compaction method B *Cubic Yard 97CQ

Includes 6" depth of roadway aggregate placement, grading (sieve), & compaction. Conform to FSSS 301.05 for compaction & FP-14 Table 703-2

64801

Placed Streambed simulation rock, bed class 10, method A, Machine Placed

*Cubic Yard

CQ

Includes furnishing and placement of streambed simulation material. Contractor shall place simulation material per FSSS Section 648.04 subsection (a) Method A, Machine Placed

Streambed simulation shall conform to FSSS 705.08 subsection (a) Simulation Material Bed

Class 10. COR shall coordinate with Fish Biologists during this phase of work.

64805

Placed Channel rock, class CR-2, method A, Machine

Placed

Each

AQ

Includes furnishing and placement of channel rocks. Contractor shall place channel rocks per

FSSS Section 648.04 subsection (a) Method A, Machine Placed...... Streambed channel rock shall conform to FSSS 705.08 subsection (b) Streambed Channel Rock. COR shall coordinate with Fish Biologists during this phase of work.

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

E.WHATLEY

G3

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

ESTIMATE OF

QUANTITIES

FSR 516 AOP

CONSTRUCTION

PROJECT

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DOWN STREAM

THALWEG, TYP

CP1

CP2

CP3

REMOVE TWO

TREES (12" DIA.)

DITCHLINE

FLOOD PLAIN

DOWNSTREAM

BANKFULL, (15.4'

WIDTH MEAN)

UPSTREAM

BANKFULL (15.4'

WIDTH MEAN)

5+61

DOWNSTREAM

THALWEG

-0.01% STREAM

GRADIENT

REMOVE EXISTING

SUBMERGED BURIED

CULVERT PER PAY

ITEM NO. 20304

STATION: 3+33.56

NORTHING: 824988.10

EASTING: 1577770.77

STATION: 0+00.00

NORTHING: 825291.39

EASTING: 1577632.19

STATION: 1+00.00

NORTHING: 825201.29

EASTING: 1577675.56

STATION: 2+00.00

NORTHING: 825109.42

EASTING: 1577715.03

STATION: 3+00.00

NORTHING: 825018.27

EASTING: 1577756.06

BP: 0+00.00

EP: 3+33.56

PC: 2+47.88

PC: 1+27.62

PC: 0+81.28

PT: 2+59.51

PT: 1+33.66

PT: 0+86.75

MID: 2+53.69

MID: 1+30.64

MID: 0+84.01

FSR 516 ROADWAY ℄

ALIGNMENT

FSR 516 ROADWAY ℄

ALIGNMENT

461.0

.0

.5

463.5

.5

456.5

CULVERT INLET INVERT

STATION: 2+14.64

NORTHING: 825139.81

EASTING: 1577738.97

CULVERT OUTLET INVERT

STATION: 2+86.64

NORTHING: 825127.62

EASTING: 1577668.01

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

POINT TABLE

POINT #

NORTHING

825032.98

825291.45

825120.73

EASTING

1577740.60

1577647.96

1577720.09

ELEVATION

457.50

469.23

457.39

DESCRIPTION

CP1

CP2

CP3

EXISTING SITE PLAN

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

GENERAL

NOTES

G4

FSR 516 AOP

CONSTRUCTION

PROJECT

HYDRAULIC DATA

THIS AOP IS DESIGNED TO PASS A 100 YEAR FREQENCY FLOOD OF 846 CFS

WITH A FREEBOARD OF 3.0 FT.

DRAINAGE AREA 1.14 SQ. MILES

Q100 FLOW 846 CFS

Q100 WATER SURFACE ELEV. 454.28 FT.

FREEBOARD PROVIDED (BASED ON Q100) 3.0 FT.

SPECIFICATIONS:

DESIGN:

1. AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, 6TH EDITION (2012) OR NEWER

WITH INTERIM SPECIFICATIONS.

2. CONSTRUCTION:

CONSTRUCTION OF THIS STRUCTURE IS TO BE IN ACCORDANCE WITH THE STANDARD

SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY

PROJECTS, FP-14 WITH FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS.

DESIGN:

DEAD LOAD:

· SUPERIMPOSED DEAD LOAD = AS APPLICABLE PER AASHTO LRFD

· EARTH = 120 PCF

· REINFORCED CONCRETE = 150 PCF

· EARTH PRESSURES = AS APPLICABLE PER AASHTO LRFD

· AGGREGATE SURFACE = 135 PCF

· SUBSTRUCTURE AND SUPERSTRUCTURE = AS APPLICABLE PER AASHTO LRFD

LIVE LOAD:

· STRENGTH 1 LIMIT STATE - AASHTO HL-93

· PEDESTRIAN LIVE LOAD = 90 PSF

· GROUND SNOW LOAD = 10 PSF (ASCE 7)

· WIND LOAD = 115 MPH

· SPAN LENGTH = 23' - 0" MAXIMUM SPAN BY 11' - 11" TOTAL RISE

CENTRIFUGAL FORCE: APPLIED IN ACCORDANCE WITH AASHTO BASED ON A DESIGN

SPEED OF 35 MPH

SEISMIC:

· SEISMIC (IRC) = SITE CLASS B

MATERIALS: CONCRETE: REINFORCED CONCRETE SHALL BE AIR ENTRAINED CLASS

A(AE) WITH A 28 DAY COMPRESSIVE STRENGTH OF 4000 PSI. ALL EXPOSED

CAST-IN-PLACE CONCRETE SHALL BE GIVEN A CLASS 2 RUBBED FINISH. ALL CONCRETE

TO BE MADE IN ACCORDANCE WITH AN APPROVED MIX DESIGN. CHAMFER ALL

EXPOSED EDGES AND CORNERS 3/4".

REINFORCING STEEL: ALL NON-PRESTRESSED REINFORCING STEEL SHALL BE OF THE

DEFORMED TYPE CONFORMING TO AASHTO M31 ASTM A615), GRADE 60. EPOXY

COATED BARS TO CONFORM TO AASHTO M284. CONCRETE COVER SHALL BE 2-INCHES

UNLESS SHOWN OTHERWISE; WHERE NOT SHOWN IT SHALL CONFORM TO AASHTO.

ANY CUTTING AND BENDING SHALL CONFORM TO ACI 315.

STRUCTURAL STEEL: STRUCTURAL STEEL POSTS AND PLATES ARE TO BE IN

ACCORDANCE WITH ASHTO 270 GRADE 36. BOLTS AND NUTS SHALL CO O A325, UNLESS

NOTED OTHERWI SE. HOT-DIP GALVANIZE EXPOSED STEEL FASTENERS, BOLTS AND

NUTS, AND HARDWARE ACCORDING TO AASHTO M232 OR MECHANICALLY GALVANIZE

ACCORDING TO AASHTO M29B, USING ANY OF THE 5 THICKEST COATING CLASSES .

WELDING: IF APPLICABLE, ALL WELDING SHALL BE IN ACCORDANCE WITH AWS D1.5.

WELDERS SHALL BE CERTIFIED TO CARRY HE WELDING PROCEDURE. ELECTRODE

MATERIAL, PLANT EQUIPMENT, AND WELDING PROCEDURE TO BE APPROPRIATE FOR

THE PARENT MATERIAL AND INTENDED USE.

JOINT FILLER: IF APPLICABLE, PREMOLDED JOINT FILLER PER AASHTO M33, M153, OR

M213, AND EXPANDED POLYSTYRENE PER AASHTO M230.

FOUNDATION INVESTIGATION: NO SUBGRADE INVESTIGATION WAS CONDUCTED.

OBSERVATION OF SURFACE MATERIAL AT THIS SITE CATEGORIZES MATERIALS AS

SILTY CLAY AND LOAM WITH AN ASSUMED BEARING PRESSURE OF 2000 PSF.

LOCATE FOOTINGS BELOW THE ESTIMATED SCOUR DEPTH.

DETERMINATION OF UNSUITABLE MATERIAL IS THE SOLE DISCRETION OF THE C.O..

FOUNDATION FILL IS INCIDENTAL AND COVERED IN PAY ITEM 20803 FOR A MAX DEPTH

OF 2 FT. FOUNDATION FILL MATERIAL SHALL CONFORM TO FP-14 SECTION 704.01.

CONTRACTOR SHALL COORDINATE IN WRITING WITH THE CO IF EXPECTED TO EXCEED

2' DEPTH.

HYDROLOGY DATA

· BANKFULL WIDTH, MEAN = 15.4 FT.

· STREAM SIMULATION WIDTH (1.2 X WIDTH OF BANKFULL CHANNEL + 2 FT) PER

WASHINGTON DEPT. OF FISH AND WILDLIFE (WATER CROSSING DESIGN

GUIDELINES) AND U.S ARMY CORPS OF ENGINEERS (STREAM CROSSINGS BMPS) =

20.4 FT.

NOTES:

1. CONTRACTOR SHALL NOT ALLOW WATER TO POND ON THE

NEWLY CONSTRUCTED ROAD TRAVELED WAY DURING

CONSTRUCTION DURATION PER FP-14 SECTION 156.

2. AGGREGATE SURFACE COURSE SOURCE IS UNDESIGNATED

COMMERCIAL SOURCE.

3. STAGING AREAS: CONTRACTOR'S STAGING AND STOCKPILING

AREAS ON NFSR 516 SHALL BE AGREED IN AGGREEMENT WITH

THE C.O. AND COR.

4. IF CONTRACTOR IS PLANNING TO WORK IN THE STREAM OR

DISTURB STREAM BANKS DURING DURATION OF REQUIRED

CULVERT REPLACEMENT WORK, A PERMIT WILL BE REQUIRED.

5. CONTRACTOR SHALL IDENTIFY TREE OR SNAGS TO BE CUT

PRIOR TO WORK THAT'S NOT IDENTIFIED IN PLANS. OBTAIN

APPROVAL FROM THE C.O. PRIOR TO CUTTING. LEAVE FELLED

TREES IN AREA IDENTIFIED BY THE C.O.R..

6. CLEARING AND GRUBBING ARE COVERED IN PAY ITEM 20101.

7. THE CONTRACTOR SHALL CONFINE ALL OPERATION AND

ACTIVITIES TO WITHIN THE CLEARING LIMITS UNLESS

OTHERWISE SHOWN ON DRAWINGS.

8. PLACE EXCESS EXCAVATION AT AN AREA DESIGNATED BY THE

COR.

9. PLACE UNSUITABLE EXCAVATION AT AN AREA DESIGNATED BY

THE COR.

10. IN THE EVENT THAT PREVIOUSLY UNDISCOVERED CULTURAL

RESOURCES ARE ENCOUNTERED DURING THE COURSE OF

THE PROJECT, ALL GROUND-DISTURBRING ACTIVITIES WILL BE

HALTED UNTIL EVALUATED BY THE GOVERNMENT. IF

NECESSARY, THE PROJECT MAY BE MODIFIED IN ORDER TO

PROTECT RESOURCES BEFORE WORK CONTINUES.

11. USE CONTAINMENT PADS UNDER EQUIPMENT IF IT WILL BE

STORED OVERNIGHT NEAR THE WORK SITE TO REDUCE

POTENTIAL CONTAMINATION.

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SURVERY COORDINATES BASED ON PROJECT NORTH

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SCALE IN FEET

DOWN STREAM

THALWEG, TYP

CP1

CP2

CP3

REMOVE TWO

TREES (12" DIA.)

DITCHLINE

FLOOD PLAIN

DOWNSTREAM

BANKFULL, (15.4'

WIDTH MEAN)

UPSTREAM

BANKFULL (15.4'

WIDTH MEAN)

5+61

0+00

UPSTREAM

THALWEG

DOWNSTREAM

THALWEG

-0.01% STREAM

GRADIENT

-0.01% STREAM

GRADIENT

REMOVE EXISTING

SUBMERGED BURIED

CULVERT PER PAY

ITEM NO. 20304

STATION: 3+33.56

NORTHING: 824988.10

EASTING: 1577770.77

STATION: 0+00.00

NORTHING: 825291.39

EASTING: 1577632.19

STATION: 1+00.00

NORTHING: 825201.29

EASTING: 1577675.56

STATION: 2+00.00

NORTHING: 825109.42

EASTING: 1577715.03

STATION: 3+00.00

NORTHING: 825018.27

EASTING: 1577756.06

BP: 0+00.00

EP: 3+33.56

PC: 2+47.88

PC: 1+27.62

PC: 0+81.28

PT: 2+59.51

PT: 1+33.66

PT: 0+86.75

MID: 2+53.69

MID: 1+30.64

MID: 0+84.01

FSR 516 ROADWAY ℄

ALIGNMENT

FSR 516 ROADWAY ℄

ALIGNMENT

END CONSTRUCTION ZONE

STATIONING: 1+10.00

NORTHING: 825192.19

EASTING: 1577679.69

END CONSTRUCTION ZONE

STATIONING: 2+66.17

NORTHING: 825048.68

EASTING: 1577741.24

461.0

.0

.0

.5

463.5

.5

456.5

CULVERT INLET INVERT

STATION: 2+14.64

NORTHING: 825139.81

EASTING: 1577738.97

CULVERT OUTLET INVERT

STATION: 2+86.64

NORTHING: 825127.62

EASTING: 1577668.01

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

CULVERT OUTLET INVERT

STATION: 2+86.64

NORTHING: 825127.61

EASTING: 1577668.01

POINT TABLE

POINT #

NORTHING

825032.98

825291.45

825120.73

EASTING

1577740.60

1577647.96

1577720.09

ELEVATION

457.50

469.23

457.39

DESCRIPTION

CP1

CP2

CP3

SITE PLAN

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

SITE PLAN

C1

FSR 516 AOP

CONSTRUCTION

PROJECT

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SURVERY COORDINATES BASED ON PROJECT NORTH

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SCALE IN FEET

CP3

STATION: 2+00.00

NORTHING: 825109.42

EASTING: 1577715.03

PT: 1+33.66

.0

.5

CULVERT INLET INVERT

STATION: 2+14.64

NORTHING: 825139.81

EASTING: 1577738.97

CULVERT OUTLET INVERT

STATION: 2+86.64

NORTHING: 825127.61

EASTING: 1577668.01

E L

E V

A T

I O

N

F

E E

T

E L

E V

A T

I O

N

F

E E

T

STATION (FEET)

0+60

0+70

0+75

0+80 0+90

1+00

1+10 1+20

1+25

1+30 1+40

1+50

1+60 1+70

1+75

1+80 1+90

2+00

2+10 2+20

2+25

2+30 2+40

2+50

2+60

2+70

3'-2"

FREEBOARD

197 SQ.FT.

3.8 3%

-6 .3

G R

A D

E

B

R E

A K

S

T

E L

G R

A D

E

B

R E

K

E

PVI STA: 1+71.71

PVI ELEV: 463.42

K: 8.70

LVC: 88.75

V C

A

E

V

A

E

V

HP STA: 1+60.62

HP ELEV: 462.36

3' MIN. COVER

UNDISTURBED EARTH

FINISH

GRADE

EXISTING GRADE

AT ℄ OF ROAD

EMBANKMENT

FINISH GRADE

AT ℄ OF ROAD

EXISTING GRADE

AT ℄ OF ROAD

ROADWAY FINISH GROUND

STA 1+70.73

ELEV 462.30

PC: 2+47.88

ELEV: 458.56

PC: 1+27.62

ELEV: 461.73

PT: 2+59.51

ELEV: 457.82

PT: 1+33.66

ELEV: 461.94

MID: 2+53.69

ELEV: 458.19

MID: 1+30.64

ELEV: 461.84

100 YR FLOOD (846 CFS)

ELEV 454.28

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

EXCAVATION LIMIT PER

OSHA REQUIREMENTS.

STRUCTURE EXCAVATION

COVERED IN PAY ITEM 20801

0+60

E G

E L E

V

0+75

E G

E L E

V

E G

E L E

V

1+00

E G

E L E

V

E G

E L E

V

1+25

E G

E L E

V

E G

E L E

V

1+50

E G

E L E

V

E G

E L E

V

1+75

E G

E L E

V

E G

E L E

V

2+00

E G

E L E

V

E G

E L E

V

2+25

E G

E L E

V

E G

E L E

V

2+50

E G

E L E

V

2+70

0+60

F G

E L E

V

0+75

F G

E L E

V

F G

E L E

V

1+00

F G

E L E

V

F G

E L E

V

1+25

F G

E L E

V

F G

E L E

V

1+50

F G

E L E

V

F G

E L E

V

1+75

F G

E L E

V

F G

E L E

V

2+00

F G

E L E

V

F G

E L E

V

2+25

F G

E L E

V

F G

E L E

V

2+50

F G

E L E

V

2+70

ROADWAY VERTICAL PROFILE

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

ROADWAY PLAN

AND PROFILE

C2

FSR 516 AOP

CONSTRUCTION

PROJECT

UPSTREAM

DOWNSTREAM

ROADWAY HORIZONTAL ALIGNMENT

PLACE CLASS 4 RIPRAP ROCK SLOPE

PROTECTION 3'-0" THICK AROUND ARCH PIPE

ON ALL SIDES. ALSO EXTEND 3'-0" FROM ENDS

OF CULVERT. PLACE TYPE IV-C GEOTEXTILE

FABRIC BENEATH RIPRAP. PLACE EXCESSIVE

RIPRAP ON STREAM BANKS TO PROTECT

STRUCTURE FOOTINGS FROM SCOUR. TYP

TO BOTH SIDES

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

FILL SLOPE

CATCHPOINT,

TYP

FILL SLOPE

CATCHPOINT,

TYP

EDGE OF

ROADWAY

OF NFSR

CONTRACTOR SHALL SUBMIT PIPE

GAGE AND CORRUGATIONS TO C.O.

FOR APPROVAL AS RECOMMENDED

BY MANUFACTURE BASED ON FILL

AND LIVE LOAD OF HL-93 LOADING

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SURVERY COORDINATES BASED ON PROJECT NORTH

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SCALE IN FEET

CP3

STATION: 2+00.00

NORTHING: 825109.42

EASTING: 1577715.03

PT: 1+33.66

.0

.5

CULVERT INLET INVERT

STATION: 2+14.64

NORTHING: 825139.81

EASTING: 1577738.97

CULVERT OUTLET INVERT

STATION: 2+86.64

NORTHING: 825127.61

EASTING: 1577668.01

1+75

1+80 1+90

2+00

2+10 2+20

2+25

2+30 2+40

2+50

2+60 2+70

2+75

2+80 2+90

3+00

3+10

CULVERT OUTLET INVERT

STA 2+86.64

ELEV 447.48

CULVERT INLET INVERT

STA 2+14.64

ELEV 448.34

REACH POINT

STA 1+90.00

ELEV 448.68

SEE ROAD VERTICAL

PROFILE FOR ELEVATIONS

14'-0"

SEE ROADWAY DETAIL

BOTTOM OF CONCRETE

BASE OR SLOTTED CHANNEL

72'-0" CULVERT LENGTH

2' BOTTOM STEP

BEGIN BELVED END

2H

1VTYP

1V:2H BEVELED

END, TYP

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

TOP OF PIPE

THALWEG

(PROPOSED

ALIGNMENT)

THALWEG (PROPOSED

ALIGNMENT)

END STREAM CONSTRUCTION

STA 3+00.00

ELEV 447.17

GREAD BREAK

STA 3+00.00

ELEV 447.17

BEGIN STREAM CONSTRUCTION

STA 1+90.00

ELEV 448.68

BEGIN CULVERT END CULVERT

CUT

-1.38%

-1.19%

-2.32%

6" TOP OF BASE CHANNEL

TO BOTTOM OF THALWEG

(SEE CROSS SECTION A-A)

A

D1

A

D1

CONTRACTOR SHALL SUBMIT PIPE

GAGE TO C.O. FOR APPROVAL AS

RECOMMENDED BY MANUFACTURE

BASED ON FILL AND LIVE LOAD

OF HL-93 LOADING

3' MIN. FILL

OVER PIPE

℄ OF ROAD

1V:2H FILL SLOPE

1V:2H FILL SLOPE

PIPE VERTICAL PROFILE

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

PIPE PLAN AND

PROFILE

C3

FSR 516 AOP

CONSTRUCTION

PROJECT

UPSTREAM

DOWNSTREAM

PIPE HORIZONTAL ALIGNMENT

PLACE CLASS 4 RIPRAP ROCK SLOPE

PROTECTION 3'-0" THICK AROUND ARCH PIPE

ON ALL SIDES. ALSO EXTEND 3'-0" FROM ENDS

OF CULVERT. PLACE TYPE IV-C GEOTEXTILE

FABRIC BENEATH RIPRAP. PLACE EXCESSIVE

RIPRAP ON STREAM BANKS TO PROTECT

STRUCTURE FOOTINGS FROM SCOUR. TYP

TO BOTH SIDES

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

FILL SLOPE

CATCHPOINT,

TYP

FILL SLOPE

CATCHPOINT,

TYP

EDGE OF

ROADWAY

OF NFSR

CONTRACTOR SHALL SUBMIT PIPE

GAGE AND CORRUGATIONS TO C.O.

FOR APPROVAL AS RECOMMENDED

BY MANUFACTURE BASED ON FILL

AND LIVE LOAD OF HL-93 LOADING

SEE SHEET D4 FOR

BEVELED END DETAIL

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SURVERY COORDINATES BASED ON PROJECT NORTH

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SCALE IN FEET

1+75

1+80 1+90

2+00

2+10 2+20

2+25

2+30 2+40

2+50

2+60 2+70

2+75

2+80 2+90

3+00

3+10

CULVERT OUTLET INVERT

STA 2+86.64

ELEV 447.48

CULVERT INLET INVERT

STA 2+14.64

ELEV 448.34

REACH POINT

STA 1+90.00

ELEV 448.68

SEE ROAD VERTICAL

PROFILE FOR ELEVATIONS

14'-0"

SEE ROADWAY DETAIL

BOTTOM OF CONCRETE

BASE OR SLOTTED CHANNEL

72'-0" CULVERT LENGTH

2' BOTTOM STEP

BEGIN BELVED END

2H

1VTYP

1V:2H BEVELED

END, TYP

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

TOP OF PIPE

THALWEG

(PROPOSED

ALIGNMENT)

THALWEG (PROPOSED

ALIGNMENT)

END STREAM CONSTRUCTION

STA 3+00.00

ELEV 447.17

GREAD BREAK

STA 3+00.00

ELEV 447.17

BEGIN STREAM CONSTRUCTION

STA 1+90.00

ELEV 448.68

BEGIN CULVERT END CULVERT

CUT

-1.38%

-1.19%

-2.32%

6" TOP OF BASE CHANNEL

TO BOTTOM OF THALWEG

(SEE CROSS SECTION A-A)

A

D1

A

D1

CONTRACTOR SHALL SUBMIT PIPE

GAGE TO C.O. FOR APPROVAL AS

RECOMMENDED BY MANUFACTURE

BASED ON FILL AND LIVE LOAD

OF HL-93 LOADING

3' MIN. FILL

OVER PIPE

℄ OF ROAD

1V:2H FILL SLOPE

1V:2H FILL SLOPE

11'-11" TO RISE

6"

BOTTOM OF THALWEG

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS

STREAM SIMULATION

ROCK CLASS ___

23'-0" SPAN

SEE BASE CHANNEL

OR SLOTTED DETAIL

FOUNDATION DEPTH

AND FOUNDATION DESIGN

IS TO BE DETERMINED AND

DESIGNED BY PROFESSIONAL

ENGINEER, TYP

0.5'V : 7.5'H

TYP

℄ OF CULVERT

15'-0" BANKFULL MEAN 4' TYP.

7'-6" TYP

B

D2

B

D2

10°

ARCH CULVERT

1'-6" MIN.

SLOT SIZE 6" DEPTH

MIN. BY 6" MAX. WIDTH

STEM WALL TO ARCH PIPE

3" CONCRETE

COVER TYP

PER ACI

PROFESSIONAL ENGINEER

SHALL INCLUDE KEYWAY

IN FOUNDATION DESIGN

IF COLD JOINT OCCURS

LEAN NON-

SHRINK

GROUT

SIZE AND REINFORCING OF

FOUNDATION TO BE CONTROLLED

BY SOIL-BEARING CAPACITY AND

LOADING CONDITIONS

CAST-IN-PLACE

BRACKET AND

ANCHORAGE PER

MAUFACTURE

REINFROCEMENT DESIGNED

BY PROFESSIONAL ENGINEER

BOLT HOLES

ALUMINUM

STRUCTURAL

PLATE

PIPE VERTICAL PROFILE

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

OPEN BOTTOM

ARCH DETAIL

D1

FSR 516 AOP

CONSTRUCTION

PROJECT

CROSS SECTION A-A

HIGH PROFILE ARCH PIPE (NTS)

ALUMINUM RECEIVING AND SLOTTED CHANNEL DETAILS

GENERAL NOTES:

1. THE ALUMINUM SINGLE RADIUS ARCH PIPE SHALL HAVE CORRUGATIONS AND A PIPE GAGE AS RECOMMENDED BY MAUACTURE

AND PROFESSIONAL ENGINEER. ARCH PIPE SHALL BE MANUFACTURED IN CONFORMANCE WITH AASHTO SPECIFICATION M 219 AND

ASTM B209. BOLTS AND NUTS SHALL MEET THE PROVISIONS OF ASTM A307/A449 AND ASTM A563, AND SHALL BE GALVANIZED IN

ACCORDANCE WITH THE REQUIREMENTS OF ASTM A153 OR B695. STEEL ANCHOR BOLTS SHALL CONFORM TO ASTM A307.

2. ALL CONCRETE SHALL BE REINFORCED WITH A MIN. COMPRESSIVE STRENGTH OF 4000 PSI. REINFORCED CONCRETE STEM WALL

AND FOUNDATION SHALL BE DESIGNED BY PROFESSIONAL ENGINEER. P.E. SHALL DETERMINE FOUNDATION DEPTH BASED ON SOIL

BEARING AND LOADING.

3. PROFESSIONAL ENGINEER SHALL DETERMINE THE RECEIVING AND SLOTTED CHANNEL THAT THEY PREFER BASED ON REINFORCED

STEM WALL AND FOUNDATION DESIGN AND CONTRACTOR'S CONSTRUCTABILITY.

CONTRACTOR SHALL SUBMIT PIPE

GAGE AND CORRUGATIONS TO C.O.

FOR APPROVAL AS RECOMMENDED

BY MANUFACTURE BASED ON FILL

AND LIVE LOAD OF HL-93 LOADING.

SEE SHEET D4 FOR

BEVELED END DETAIL

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CHANNEL ROCK KEYED INTO GROUND

STREAM SIMULATION BED CLASS 10

6" DEPTH THALWEG (TYP)

18"-24" (ROCK SIZE 2)

CHANNEL ROCKS SCATTERED

STREAM SIMULATION BED CLASS 10

STREAM CHANNEL ROCK (CR-2 SCATTERED)

FOUNDATION, TYP (DESIGNED

BY PROFESSIONAL ENGINEER

6" TYP

STREAM

FLOW

OUTSIDE EDGE OF SPREAD FOOTING

OUTSIDE EDGE OF SPREAD FOOTING

TOP OF SLOPE TYP

0.5'V : 7.5'H TYP

OF

THALWEG

CHANNEL ROCKS KEYED INTO GROUND

STREAM SIMULATION

BED CLASS 10

18" - 24" CHANNEL ROCKS (CR- 2) SCATTERED

AND KEYED INTO GROUND. ACTUAL LOCATION WILL BE STAKED

ON THE GROUND BY C.O.R. WITH CORRELATION WITH FISH BIOLOGIST

23'-0" SPAN

PROPOSED 72' LENGTH BY

23'-0" SPAN BY 11'-11" RISE

SINGLE RADIUS ARCH

BANKFULL MEAN

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

STREAMBED

SIMULATION DETAIL

D2

FSR 516 AOP

CONSTRUCTION

PROJECT

STREAM SIMULATION SECTION B-B

PLANVIEW (NTS)

STREAM FLOW DIRECTION

STREAMBED SIMULATION NOTES:

1. DIMENSIONS AND SLOPES OF

STREAM SIMULATION SECTION B-B

SHALL BE THE SAME AS SHOWN IN

CROSS SECTION A-A ON SHEET D1.

DETAILS, DIMENSIONS, AND SLOPES

ARE SHOWN ON SEPARATE DETAILS

FOR CLARITY.

· ACTUAL LOCATIONS FOR

SCATTERED CHANNEL ROCK (CR- 2)

WILL BE STAKED ON THE GROUND

BY THE C.O.R WITH COORDINATION

WITH NATIONAL FOREST'S FISH

BIOLOGIST.

· FILL ALL VOIDS BETWEEN CHANNEL

ROCKS WITH STREAMBED

SIMULATION BED CLASS 10.

· PROPOSED STREAM GRADIENT

INSIDE CULVERT IS -1.19%

CROSS SECTION D-D

TYPICAL SECTION VIEW (NTS)

CROSS SECTION E-E

TYPICAL SECTION VIEW (NTS)

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STREAM FLOW DIRECTION

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PROPOSED CULVERT

EXISTING CHANNEL

OR STREAM

MIN. WIDTH =

CULVERT O.D.

NATURAL

GROUND

MIN. COVER REUIRED

18" DIA THRU 72"

DIA. TEMPORARY

DRAINAGE PIPE

MATCH EXISTING

SLOPE

WHERE NO TRAFFIC OR

PEDESTRIANS IS PRESENT,

AN OPEN CHANNEL WITH

SHEETING MAYBE USED IN

ROADWAY OR TRAILWAY WITH

APPROVAL BY COR.

BOTTOM WIDTH EQUAL TO OR GREATER

THAN THE NATURAL CHANNEL BOTTOM WIDTH

REQUIRED FINISH GRADE

OF TEMPORARY CHANNEL

DESIGN FLOW

DEPTH

HEIGHT OF RIPRAP SHALL BE

AT LEAST THE DESIGN

FLOW DEPTH PLUS THE

1' OF FREEBOARD

SILT FENCE

ANCHOR TRENCH

SOIL BACKFILL IN

ANCHOR TRENCH

6"

GEOTEXTILE FABRIC

1V:2H OR FLATTER OR

MATCH NATURAL CHANNEL

EXISTING

GROUND

4"

TOP OF CHANNEL

2.5' TYP

SAND BAGS 2 BAG HIGH MIN.

NATURAL

GROUND

EXISTING CHANNEL

OR STREAM

3D

POLYETHYLENE SHEETING

(6 MIL. MINIMUM)

INSTALLED BETWEEN

SANDBAGS (SEE NOTE 6)

D

TEMPORARY

DIVERSION

CULVERT

TOP OF SANDBAGS AT OR

ABOVE TOP OF CHANNEL

BANK (2 BAG HIGH MIN.)

TEMPORARY PLUG

(SANDBAGS, PLYWOOD,

OR RIPRAP WITH

GEOTXTILE)

18" THRU 72"

TEMPORARY

DRAINAGE

PIPE

UPSTREAM SUMP PUMP: PLACE

IN CUTOFF TRENCH OR SUMP

AT DEPTH NEEDED TO DEWATER

FOUNDATIONS. DITCH ALONG

OUTSIDE OF FOUNDATION AS

NEEDED TO DEWATER FOUNDATION

TOE OF FILL

EXISTING CHANNEL

OR STREAM

TOE OF FILL

DOWNSTREAM SUMP-PUMP

PLACE IN CUT OFF TRENCH

OR SUMP AT DEPTH NEDED

TO DEWATER FOUNDATION

ROADWAY CENTERLINE

F L O

W

ANCHOR CULVERT ENDS

WITH SANDBAGS

ANCHOR CULVERT ENDS

WITH SANDBAGS

F L O

W

F L O

W

ELBOW JOINTS

AS NEEDED

PROPOSED CULVERT

REMOVE SEDIMENT FROM PUMPED

WATER USING FILTRATION (EX.

SEDIMENT FILTER BAGS),

DISPERSED ONTO LANDSCAPE

(EX. USING PERFORATED PIPE).

MODIFY AS NEEDED TO MEET

DOWNSTREAM TURBIDITY

REQUIREMENTS

TOE OF FILL

SEDIMENT FILTER

BAG OR DEWATERING

STRUCTURE

PROVIDE ADEQUATE

CLEARANCE FOR

CONSTRUCTION

BETWEEN PROPOSED

CULVERT AND

TEMPORARY DIVERSION

CULVERT

18"-THRU 72"

TEMPORARY

DRAINAGE PIPE

PROPOSED CULVERT

TEMPORARY PLUG

(SANDBAGS, PLYWOOD,

OR RIPRAP WITH

GEOTXTILE)

PLACE RIPRAP AT

TRANSITION CHANNEL

GEOTEXTILE FABRIC

PLACED UNDER RIPRAP

GEOTEXTILE FABRIC

PLACED UNDER RIPRAP

PLACE RIPRAP AT

TRANSITION CHANNEL

SILT FENCE REQUIRED

ALONG ENTIRE LENGTH

OF TRANSITION CHANNEL

(BOTH SIDES)

ROADWAY CENTERLINE

TEMPORARY PLUG

(SANDBAGS, PLYWOOD,

OR RIPRAP WITH

GEOTXTILE)

PUMP

P

F L O

W

B

B

A A

C C

A A

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

DEWATERING

PLAN

D3

FSR 516 AOP

CONSTRUCTION

PROJECT

TEMPORARY DIVERSION CULVERT W/ CHANNEL TRANSITIONS

PLAN VIEW

TEMPORARY DIVERSION CULVERT W/ ELBOWS

PLAN VIEW

NOTE:

1. ALL PUMPS SHALL BE EQUIPPED WITH

A SCREEN PER FSSS SECTION 170.04..

REFER TO FSSS SECTION 170.04 FOR

SCREEN SIZES.

2. SEE SHEET D4 FOR DEWATERING

NOTES

TRANSITION CHANNEL CROSS-SECTIONSECTION C-C

SECTION B-B

SECTION A-A

NOTES:

1. SEE SHEET D4 FOR

DEWATERING NOTES

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FLOW

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SLOPE -2%

SLOPE -2%

6'

6' 1'

ROADWAY

14' FULL WIDTH OF ROADWAY

SHOULDER

EDGE

TRAVELED

WAY

EDGE

6" COMPACTED AGGR

DEPTH, TYP IN ALL SECTIONS

AS SHOWN IN DRAWINGS

SUITABLE EMBANKMENT

MATERIAL

1V:2H SLOPE,

TYP TO BOTH

SIDES

SHOULDER

EDGE

1V:2H FILL SLOPE

TYP, ALL SECTIONS

1V:2H FORESLOPE

TYP, ALL SECTIONS

6" COMPACTED

DEPTH OF AGGR.

COMPACTED SUBGRADE

PROPOSED 72' LENGTH BY

BY 23'-0" SPAN BY 11'-11"

RISE ALUMINUM SINGLE

RADIUS ARCH PIPE WITH

1V:2H BEVELED ENDS. GAGE

SHALL AS RECOMMENDED BY

MANUFACTURE AND

PROFESSIONAL ENGINEER

PLACE RIPRAP

PLACE RIPRAP

AROUND INLET

AND OUTLET

FILL SLOPES OF

PIPE

3.00' MIN.

ABOVE PIPE

EXTEND RIPRAP 3' BEYOND INLET

AND OUTLET OF PIPE

ON SLOPES, TYP TO BOTH SIDES

PLACE SEPARATION AND STABILIZATION

GEOTEXTILE TYPE CLASS I TYPE C, PER FP-14

TABLE 714-1, AS SHOWN BUTTED AGAINST

FILL SLOPE AND EARTH BANK(S), TYP

(COVERED IN PAY ITEM 25102)

CULVERT

FLOW

FINISH FILL

SLOPE

SLOPE

SLOPE

FINISH FILL SLOPE

3' MIN.

36" MIN.

2.0

THALWEG THROUGH

ARCH PIPE

PLACE SEPARATION AND

STABILIZATION GEOTEXTILE

TYPE CLASS I TYPE C, PER

FP-14 TABLE 714-1,

INLET AND OUTLET

INVERT

3'-0' MIN.

2'-0"

BOTTOM STEP

2'-0"

BOTTOM STEP

INLET/OUTLET

INVERT, TYP

TO BOTH SIDES

1V:2H BEVELED

END, TYP

United States Department of Agriculture

Forest Service

USDA FOREST SERVICE

REGION 8

PROJECT NAME

FRANCIS MARION &

SUMTER NATIONAL

FORESTS

DRAWING TITLE

DATE SIGNED

DESIGNER

DRAWN

CHECKED

PROJECT NO.

DWG SHEET NO.

SHEET

ROADWAY AND

RIPRAP DETAIL

D4

FSR 516 AOP

CONSTRUCTION

PROJECT

DEWATERING NOTES

ROADWAY DETAIL

TEMPORARY DIVERSION CULVERT AND DEWATERING PLAN GENERAL NOTES

1. TEMPORARY DIVERSION CULVERTS ARE GENERALLY CONSTRUCTED UNDER AN EXISTING

ROADWAY, WHERE IT IS NECESSARY TO MAINTAIN TRAFFIC, TO CONVEY STREAM FLOW

AROUND IN-STREAM CONSTRUCTION. THIS ALLOWS IN-STREAM WORK TO BE COMPLETED

IN THE DRY, SEPARATED FROM FLOWING WATER.

2. EXAMPLE SHOWN IS FOR CULVERT REPLACEMENT OR NEW CONSTRICTION. TEMPORARY

DIVERSION CULVERTS SHALL BE USED TO WITHSTAND A 2-YEAR FREQUENCY STORM FLOW

RATE. CONTRACTOR WILL BE NOTIFIED OF A SITE WHICH INVOLVE A SEDIMENT-IMPAIRED

STREAMS IN WHICH THE PIPE SHALL BE ADEQUATE TO CONVEY THE FLOW.

3. THE CONTRACTOR SHALL DETERMINE THE SIZE OF THE BYPASS PIPE BY USING THE CFS

PROVIDED BY THE CO. THE CONTRACTOR SHALL COORDINATE WITH CO TO PROVIDE

HIM/HER WITH THE 2 YR OR 5 YR PEAK FLOW STORM EVENT CFS TO DETERMINE BYPASS

PIPE SIZE.

4. THE RIPRAP TRANSITION AT THE INLET AND THE DIVERSION CULVERT SHALL BE SUBMITTED

IN DEWATERING PLAN FOR C.O. APPROVAL.

5. WHERE EXCAVATION FOR A DIVERSION TRANSITION EXPOSES BEDROCK, GEOTEXTILE

FABRIC AND RIPRAP SHALL BE USED ON THE SIDES SLOPES OF THE CHANNEL.

6. IN ORDER TO PROVIDE THE BEST POSSIBLE SEAL, THE POLYETHYLENE SHEETING USED IN

AN UPSTREAM PIPE ANCHOR SHOULD BE FITTED AROUND THE PIPE. SANDBAGS ON THE

DOWNSTREAM SIDE OF THE SHEETING SHOULD BE PLACED FIRST, AND THE SHEETING

PLACED ON THESE BAGS. THE REMAINING SANDBAGS WOULD THEN BE PLACED ON THE

SHEETING. WHERE MULTIPLE SHEETS ARE USED, THEY SHOULD OVERLAP A MIN. OF 18

INCHES.

7. ENSURE THAT THE BYPASS PIPE AND DAM ARE LEAK PROOF. CONSTRUCTION SHALL NOT

PROCEED UNTIL THE IMPLEMENTED DEWATERING PLAN HAS BEEN INSPECTED AND

ACCEPTED BY THE CO IN WRITING.

8. DURING CONSTRUCTION OF THE TEMPORARY DIVERSION CULVERT OR APPROVED ANY

OTHER DEWATERING METHOD, DAMAGE TO THE EXISTING STREAM AND CANOPY SHALL BE

MINIMIZED. ALL EXISTING VEGETATION OUTSIDE THE CUT AND FILL LINES BUT INSIDE THE

RIGHT OF WAY SHALL NOT BE DISTURBED UNLESS IT INTERFERES WITH SAFETY

STANDARDS. THE TEMPORARY CULVERT OR ANY OTHER DEWATERING METHOD SHOULD

BE LOCATED SO AS TO MINIMIZE THE LENGTH OF ANY TRANSITIONS REQUIRED.

9. DEWATERING CONSTRUCTION SHALL BE COMPLETED IN THE DRY BEFORE DIVERTING

WATER FROM THE EXISTING CHANNEL. WHERE THIS IS FEASIBLE, TEMPORARY FLOW

DIVERSION STRUCTURES CAN BE USED UNTIL WORK IS COMPLETE. THESE STRUCTURES

CAN BE ANY NON-ERODIBLE MATERIAL. SUBMIT TO CO FOR APPROVAL.

10. CONSTRUCTION SHALL PROCEED AS FOLLOWS:

11. CONTRACTOR SHALL SUBMIT TYPE OF GEOTEXTILE TO USE TO CO FOR APPROVAL.

12. DIVERSION CULVERT OR ANY OTHER APPROVED DEWATERING METHOD, SANDBAGS

ANCHORS, AND TRANSITIONS SHALL BE INSPECTED WEEKLY OR AFTER EVERY RAIN EVENT.

ANY NEEDED REPAIRS SHALL BE DONE IMMEDIATELY.

13. DRAWDOWN POOL FOR SUMPS SHALL BE EXCAVATED A MINIMUM OF 2 FEET BELOW THE

BOTTOM OF FOUNDATION FORMS AND BE A MINIMUM OF 5 FEET IN DIAMETER.

14. MAINTAIN ALL ELEMENTS OF THE OPERATION IN ORDER TO DEWATER THE FOUNDATION,

FACILITATE CONSTRUCTION, PREVENT HARM TO AQUATIC ORGANISMS (NOT JUST FISH)

AND PREVENT SEDIMENT AND TURBIDITY FROM ENTERING THE STREAM. THE DEWATER

SYSTEM WILL BE CONSTRUCTED IN A MANNER WHICH ENABLES FS BIOLOGIST TO COLLECT

AND TRANSPORT ORGANISMS FROM THE LIVE CHANNEL, JUST BEFORE COMPLETION OF

THE DIVERSION DAM.

15. PUMPS SHALL REMAIN OPERATING DOWNSTREAM OF THE BYPASS DAM IF THE DAM DOES

NOT SEAL THOROUGHLY. PUMPS SHALL REMAIN IN POSITION ON SITE EVEN IF WATER

DISCHARGE DROPS CONSIDERABLY, TO BE PREPARED FOR STORM FLOWS. PUMPS SHALL

BE CLEAN AND FREE OF LEAKS AND SHALL BE PLACED IN A CONTAINMENT KIT.

16. DEWATERIN STRUCTURES, GEOTEXTILE, SAND BAGS, SHEETING, SEDIMENT FILTER BAGS,

SILT FENCE, TEMPORARY PLUGS, RIPRAP, ALL OTHER MATERIALS, LABOR NECESSARY FOR

CONSTRUCTION, MAINTENANCE, AND REMOVAL OF TEMPORARY DIVERSION CULVERT OR

ANY OTHER APPROVED DEWATERING PLAN IN ITS ENTIRETY SHALL BE INCLUDED IN PAY

ITEM 15755.

A. CONSTRUCT THE TEMPORARY CULVERT ADJACENT TO

THE PROPOSED PROJECT. ISOLATE THE TEMPORARY

CHANNEL FROM THE EXISTING CHANNEL WITH

TEMPORARY PLUGS.

B. DIVERT FLOW BY MOVING THE TEMPORARY PLUGS FROM

THE TEMPORARY CHANNEL TO THE EXISTING CHANNEL.

C. CONSTRUCT THE PROJECT IN THE EXISTING STREAM

AND PLACE TEMPORARY EROSION CONTROL ON THE

EXISTING STREAM BANKS THAT MAY BE VULNERABLE TO

EROSION DURING DURATION OF PROJECT OR STORM

EVENTS.

D. WHERE A TEMPORARY PLUG IS REQUIRED AT THE

DOWNSTREAM END OF THE DIVERSION, IT SHOULD BE

REMOVED FIRST. THEN REMOVE THE UPPER PLUG IN

ORDER TO RELEASE FLOW INTO THE RECONSTRUCTED

CHANNEL.

E. REMOVE LINING MATERIALS FROM THE DIVERSION

TRANSITIONS, RESTORE THE AREA TO GRADE AND

STABILIZE EXPOSED SOILS.

RIPRAP DETAILS

ARCH PIPE BEVELED END

DETAIL

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