FY14_EII_Amd2_Plans.pdf

PDF 1 MB Posted Sep 10, 2013

Attached to: Award of Contract No. W912PM-13-C-0012 Wilmington Harbor Eagle Island DA Improvements 2014, New Hanover and Brunswick Counties, NC
Solicitation number: W912PM-13-B-0006
Issued by: Department of the Army Corps of Engineers Engineering District Wilmington

About this file

From the source

AMENDMENT PLANS

View the file

Other files

File	Type	Posted
Bid_Abstract_Afetr_Bid_Opening.pdf	PDF	Sep 18, 2013
W912PM-13-B-0006-0002_Conformed_Copy.pdf	PDF	Sep 10, 2013
FY14_EII_Amendment0002.pdf	PDF	Sep 10, 2013
Site_Visit_Sign-In.pdf	PDF	Sep 4, 2013
EI_FY14_Amd1_Plans.pdf	PDF	Aug 29, 2013
EII_FY14_Amendment0001.pdf	PDF	Aug 29, 2013
FY14_EagleIsland_AdvPlans.pdf	PDF	Aug 19, 2013
FY14_EI_ADV_SPECS.pdf	PDF	Aug 19, 2013

On GovTribe

Work with this file

Download the original file
Contacts named in this file
Similar government files
Ask GovTribe AI about this file

Try for free Login

Text version

The file's text, extracted by GovTribe without its formatting.

E F

C L D

A U

G-1

SHEET 1 OF 21

A W

G S

A D

S H

E E T S

C L D

B Y

D E S

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R T

R O

C O

R P

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

A P P

R O

C H

C T

C H

F E

N G

E E

A N

C H

W H

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

REFERENCE DRAWINGS

R-1

R-2

R-3

INDEX OF DRAWINGS

LOCATION MAP

SITE PLAN - SPILLWAY 7

DEMOLITION PROFILE AND NEW PROFILE - SPILLWAY 7

SITE PLAN - SPILLWAY 8

SITE PLAN - SPILLWAY 9

SPILLWAY DETAILS

STEEL WALKWAY DETAILS

STEEL WALKWAY SUPPORT DETAILS

SEDIMENT AND EROSION CONTROL - DETAILS

PIPE SADDLE DETAILS

MISCELLANEOUS DETAILS

SADDLE SUPPORT DETAIL

SEDIMENT AND EROSION CONTROL PLAN - CELL 3 SPILLWAYS

PROFILE - SPILLWAY 8

PROFILE - SPILLWAY 9

SPILLWAY DETAILS, EXCAVATION

4X8 SPILLWAY DETAILS - SHEET 1 OF 4

4X8 SPILLWAY DETAILS - SHEET 2 OF 4

4X8 SPILLWAY DETAILS - SHEET 3 OF 4

4X8 SPILLWAY DETAILS - SHEET 4 OF 4

SPILLWAY DETAILS EXCAVATION

DEMOLITION PROFILE AND NEW PROFILE SPILLWAY 3

SITE PLAN - SPILLWAY 3

Plate No. Title

INDEX OF DRAWING

E I_

D E

X .d g n

Sheet No.

G-1

G-2

C-1

C-2

C-3

C-4

C-5

C-6

C-7

C-8

S-1

S-2

S-3

S-4

S-5

S-7

S-8

18S-6

S-9

C-9

C-10

01_EI_14_INDEX.dgn 9/10/2013 11:05:22 AM

D E S

C T

ANCHORAGE BASIN

ACCESS ROAD

BETWEEN CHANNEL

N 160,000

E 2,310,000 N 170,000

E 2,310,000

BRUNSWICK R

IVER

NORTH CAROLINA STATE PORTS AUTHORITY

NC STATE PORTS AUTHORITY DOCKS

ACCESS ROAD

WETLANDS

WETLANDS WETLANDS

WETLANDS

DISPOSAL SITE

OF GATE TO EAGLE ISLAND

APPROXIMATE LOCATION

DIKE

CELL NO. 3

EXISTING

DISPOSAL AREA

CELL NO. 2

SCALE: 1"=800’

800’800’

YARD

REPAIR

ENGINEER

US ARMY

ELEV.=5.18 NAVD 88

E=2315621.55

N=174691.12

PID: EA3063

"8120 C 1976 NO1 1986"

CONTROL POINT #4

ELEV.=20.04 NAVD 88

E=2305275.60

N=157642.27

PID: EA0580

"JOHNSON 2 1965"

CONTROL POINT #1

ELEV.=43.31 NAVD 88

E=2322247.68

N=162378.76

PID: EA3092

"MCDONALDS 1980"

CONTROL POINT #9

ELEV.=32.41 NAVD 88

E=2318380.99

N=162523.85

PID: DJ5930

"PORT 2006"

CONTROL POINT #8

ELEV.=18.37 NAVD 88

E=2318057.65

N=163894.21

PID: DJ5931

"LENFESTEY 2006"

CONTROL POINT #7

DIKE 1-2

CROSS

EXISTING

ROAD

ACCESS

ROAD

ACCESS

DIKE

CELL 1

EXISTING

LANDS

WET-

SPILLWAY NO. 8

CONSTRUCT NEW

SPILLWAY NO. 9

CONSTRUCT NEW

PERIOD SEPTEMBER 2013 THRU JANUARY 2014.

MATERIAL IN THE CELL NO. 2 DISPOSAL AREA DURING THE

SPILLWAY INSTALLATION WORK AND DISPOSAL OF DREDGED

GOVERNMENT CONTRACT ARE PLANNED WHICH WILL REQUIRE

6. DREDGING AND DISPOSAL OPERATIONS UNDER SEPARATE

CONTRACTING OFFICER.

DAMAGE TO THE WETLANDS TO THE SATISFACTION OF THE

CONTRACTOR SHALL BE RESPONSIBLE FOR RESTORING ANY

TEMPORARILY, IN AREAS DEFINED AS WETLANDS. THE

OF ANY KIND SHALL BE PLACED AT ANY TIME, INCLUDING

AND 3 DIKES ARE PROTECTED BY LAW. NO FILL MATERIAL

5. THE WETLANDS LOCATED OUTSIDE OF CELLS 1, 2.

SPILLWAYS 7, 8 AND 9 CONSTRUCTION DETAILS

4. SEE PLATES C-1 THRU C-8 FOR EAGLE ISLAND CELL 3

3. CONTROL POINTS ARE NOTED ON DRAWING

2. VERITICAL DATUM NAVD 88

1. HORIZONTAL DATUM NAD 1983

NOTES:

DIKE 2-3

CROSS

EXISTING

RISER

SPILLWAY NO. 6

MODIFY EXISTING

RISER

SPILLWAY NO. 5

MODIFY EXISTING

RISER

SPILLWAY NO. 4

MODIFY EXISTING

RISER

SPILLWAY NO. 1

MODIFY EXISTING

NO. 2

SPILLWAY

EXISTING SPILLWAY NO. 3

MODIFY EXISTING

WETLANDS

G-2

SHEET 2 OF 21

L O

C A T

S P

L W

A Y S

1, A N

A D

L W

A Y

A T

N S

O R

C L D

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R O

C O

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

S Y

M B

O L

D E S

C R

N D

A T E

A P P

R O

V E

D E S

SHEET OF

W H

C L D

E F

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

B B

E 2,315,000

N 175,000

FOURTH EAST JETTY CHANNEL

WETLANDS

U.S. 74, 76, 17 & 421

MEMORIAL BRIDGE

CAPE FEAR

ELEV.=11.99 NAVD 88

E=2311564.90

N=177996.70

PID: EA1250

"BRU 21 1979"

CONTROL POINT #12

E L

E V

T R

A V

E R

C O

N T

AREA

DISPOSAL

CELL NO. 1

DISPOSAL AREA

CELL NO. 3

NO. 7

SPILLWAY

REPLACE

LIMITS

BORROW AREA

300’(TYP.)

E I_

D E

X .d g n

CAPE FEAR RIVER

HWY 421

TO US

ON WALKWAY

LEGEND

ACCESS ROAD

BORROW AREA LIMITS

DIKE CENTERLINE

02_EI_14_LOCATION_MAP.dgn 9/10/2013 3:14:59 PM

LEGEND

ACCESS ROAD

DIKE CENTERLINE

EXCAVATION LIMITS

MAJOR CONTOUR

MINOR CONTOUR

SCALE IN FEET

SCALE: 1" = 40’

40 80 12040

NOTES:

DESIGNATED REPRESENTATIVE.

TO THE SATISFACTION OF THE CONTRACTING OFFICER OR HIS/HER

WETLANDS DAMAGED BY THE CONTRACTOR’S OPERATION SHALL BE RESTORED

BY LAW. EXCAVATION AND/OR FILLING OF WETLANDS WILL NOT BE ALLOWED.

THE WETLANDS LOCATED OUTSIDE THE DISPOSAL AREA DIKE ARE PROTECTED

AT NO ADDITIONAL EXPENSE TO THE GOVERNMENT.

OF THE CONTRACTOR SHALL BE REPAIRED OR REPLACED BY THE CONTRACTOR

DESIGNATED REPRESENTATIVE, RESULTED FROM LACK OF CARE ON THE PART

ANY NEW DAMAGE THAT, IN THE OPINION OF THE CO OR HIS/HER

BE NOTED.

THE CO OR HIS/HER DESIGNATED REPRESENTATIVE. ANY DAMAGE SHALL

OR HDPE PIPE, THE CONTRACTOR SHALL INSPECT THE HDPE PIPE WITH

BEFORE BEGINNING ANY DEMOLITION/ALTERATIONS TO THE SPILLWAY

SPILLWAY 3 - WORK SITE PLAN

C H

D E S

C T

P L A

S P

L W

A Y

30" HDPE PIPE

> FACE OF SPILLWAY RISER

SPILLWAY RISER

S T

30" STEEL PIPE

E I_

S P

W Y P L A

N .d g n

A D

E E T E

X C

A V

A T

S P

L W

A Y

C-9

SHEET 11 OF 21

D R

S E P

C L D

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R O

C O

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

S Y

M B

O L

D E S

C R

N D

A T E

A P P

R O

V E

D E S

W H

C L D

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

A A

X X

TEMPORARY SILT FENCE

N 165,712.9

E 2,312,211.13

21_EI_14_SPWY3_PLAN.dgn 9/10/2013 11:01:39 AM

SPILLWAY No. 3 - DEMOLITION PROFILE

EL. 35.4’

7.0’ 88.0’

78.0’

INV. EL. 12.0’

EXISTING GRADE

AND CONCRETE SADDLE

EXISTING 30" STEEL PIPE 22.5°

ELBOW

STEP IN >

EL 27.5’ APPROX. LEVEL OF

3’ 3’

8 SPACED @ 9’ = 72’

SPILLWAY FOUNDATION

SADDLE

CONCRETE

SEEPAGE CUTOFF

BENT (TYP)

SUPPORT

SEEPAGE COLLAR

30" HDPE

EXISTING PIPE

4’ GAP

SPILLWAY No. 3 - NEW WORK PROFILE

EL. 35.4’

SCALE IN FEET

VERTICAL SCALE: 1" = 10’

10 20 301020

HORIZONTAL SCALE: 1" = 20’

40 20 20 40 60

EL. 13.4’

EL 27.5’ APPROX. LEVEL OF

INV. EL. 13.9’

30" STEEL PIPE

STEP IN >

SPILLWAY FOUNDATION

OPENING (SEE NOTE 6)

TO COVER 30" PIPE

NEW STEEL PLATE

C H

D E S

C T

-2+47 -2+00 -1+00 0+00 1+00 1+50

LOCATION OF SPILLWAY

E l e v a t i o n

V D

EL. 6.65’

C-10

S P

L W

A Y

O F

E D

E M

O L

O F

SHEET 12 OF 21

P 1_

E I_

S P

W Y D

E M

O P

R O .d g n

A D

E E T

D E

L W

A Y

D R

S E P

C L D

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R O

C O

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

S Y

M B

O L

D E S

C R

N D

A T E

A P P

R O

V E

D E S

W H

C L D

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

EL. 13.4’

EXISTING GRADE

BACKFILL TO

EL. 39.0

30" HDPE

EXISTING PIPE

PIPE AT FLANGE

PIPE FROM HDPE

DISCONNECT STEEL

-2+47 -2+00 -1+00 0+00 1+00 1+50

LOCATION OF SPILLWAY

E l e v a t i o n

V D

EL. 6.65’

NEW STEEL PLATE SHALL BE BOLTED TO PLATE STEEL OF RISER BOX.

PPE OPENING OF SPILLWAY RISER BOX SHALL BE COVERED WITH 1/4-INCH THICK STEEL PLATE.

SEE REFERENCE DRAWINGS FOR DETAILS OF ITEMS TO BE REMOVED.

FOR DEMOLITION REQUIREMENTS SEE SECTION 02 41 00 OF THE SPECIFICATIONS.

AND CRIBBING SHALL BE REPAIRED AT THE CONTRACTOR’S EXPENSE.

HDPE PIPE AND TIMBER CRIBBING. ANY DAMAGE OR ALTERATION CAUSED TO THE HDPE PIPE

THE STEEL PIPE SHALL BE REMOVED WITHOUT ANY DAMAGE OR ALTERATION TO THE EXISTING

SEE EXCAVATION DETAIL ON SHEET S-1.

AT LEAST 10-FEET OF UNDAMAGED GEOTEXTILE FABRIC TO OVERLAP WITH NEW GEOTEXTILE FABRIC.

THE CONTRACTOR SHALL CUT AND PULL BACK THE GEOTEXTILE FABRIC AS NECESSARY TO RETAIN

THREE LAYERS OF HIGH STRENGTH GEOTEXTILE WILL BE ENCOUNTERED DURING EXCAVATION.

DIVERSIONS TO PROVIDE A DRY WORK AREA.

& SOFT, CONSTRUCTION MAY REQUIRE DEWATERING AND USE OF COFFER CELLS AND/OR DITCH

THE CONTRACTOR SHOULD NOTE THAT WATER LEVEL IS HIGH & FOUNDATION MATERIAL IS WET

GENERAL NOTES:

GEOTEXTILE

GEOGRID

22_EI_14_SPWY3_DEMO_PRO.dgn 9/10/2013 11:49:41 AM

SEPARATING THE SAND (SW/SP FILTER) AND THE SUBGRADE SOILS.

3. THE CONTRACTOR SHALL INSTALL A GEOTEXTILE THAT IS APPROPRIATE FOR

FROM WHERE PIPE DAYLIGHTS OUT DIKE EMBANKMENT.

PIPE DAYLIGHTS OUT DIKE EMBANKMENT AND EXTEND TO POINT 10’ DOWN SLOPE

2. BEGIN 4" SOLID CORRUGATED PLASTIC DRAIN PIPE 10’ FROM WHERE DRAIN

UP TO 10’ FROM WHERE DRAIN PIPE DAYLIGHTS OUT DIKE EMBANKMENT.

1. USE 4" PERFORATED CORRUGATED PLASTIC DRAIN PIPE WITH SOCK SLEEVE

FRENCH DRAIN NOTES:

GOOD CONDITION WITH NO TEARS OR HOLES.

GEOTEXTILE SHALL OVERLAP EXISTING GETEXTILE THAT IS IN

EQUIPMENT ON BOTH SIDES OF THE EXCAVATION. THE NEW

OF GEOTEXTILE MATERIAL WITHOUT TEARS OR HOLES FROM

AT ELEV. +24 NAVD88 IN A MANNER THAT SHALL RETAIN 10-FEET

3. THE CONTRACTOR SHALL EXCAVATE TO EXISTING GEOTEXTILE

FABRIC SEAMS ARE NOT REQUIRED TO BE SEWN.

OVERLAP 10-FEET. NEW TO NEW AND NEW TO EXISTING GEOTEXTILE

NEW GEOTEXTILE FABRIC TO EXISTING GEOTEXTILE FABRIC SHALL

FABRIC TO NEW GEOTEXTILE FABRIC SHALL OVERLAP 3-FEET.

SPECIFICATION SECTION 31 05 22 GEOTEXTILE. NEW GEOTEXTILE

2. GEOTEXTILE FOR DIKE EMBANKMENT SHALL COMPLY WITH

WITH SPECIFICATION SECTION 31 01 00 DIKE EMBANKMENT.

1. EXCAVATION AND BACKFILL OF DIKE EMBANKMENT SHALL COMPLY

DIKE EMBANKMENT NOTES:

SPILLWAY 7 - FRENCH DRAIN DETAIL

N.T.S.

12’ (TYP)

SADDLE AND CAP

REMOVE CONCRETE

SPILLWAY 7 - HDPE PIPE DETAIL

SW / SP

PLASTIC DRAIN PIPE

4" DIA. CORRUGATED

N.T.S.

6" TYP.

2" TYP.

(TYP.)

2’-3"

SDR 11

12" HDPE

(SEE FRENCH DRAIN NOTE 3)

GEOTEXTILE FILTER FABRIC

8’

EL 24’

OR EXTRACT PILES

3-FT BELOW GEOTEXTILE

CUT TOP OF H-PILES TO MIN.

SDR 26

30" HDPE PIPE

SDR 11

12" HDPE PIPE

30-INCH HDPE PIPE

15-FEET INSIDE THE

EXTEND A MINIMUM OF

12-INCH HDPE PIPE SHALL

C H

D E S

C T

PIPE

NEW

2’

VARIES

30’

4’ TYP

EXISTING ALIGNMENT

TO COINCIDE WITH

NEW 12" HDPE PIPE

30" O.D. STEEL PIPE

REMOVE EXISTING

(SEE NOTE 3)

EXISTING GEOTEXTILE BY 10’.

GEOTEXTILE MUST OVERLAP THE

THE TOP LAYER OF THE NEW

EXISTING GRADE

BACKFILL TO

E F

E X

C A

V A T

N .d g n

E I_

S P

W A

Y D

E T

S-1

SHEET 11 OF 21

E X

C A

V A T

S P

L W

S R

E V

O T E

X T

A B

T E

C L D

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R O

C O

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

S Y

M B

O L

D E S

C R

N D

A T E

A P P

R O

V E

D E S

W H

C L D

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

GEOTEXTILE

12H TO 4V (TYP.)

STEP SLOPED AT

SPILLWAY 7 - TYPICAL DIKE EMBANKMENT EXCAVATION SECTION

N.T.S.

11_EI_14_SPWAY_DETAILS_EXCAVATION.DGN 9/10/2013 10:57:01 AM

D E S

C T

N E F

E I_

S P

W A

Y D

E T

S .d g n

S H

E E

S P

L W

S H

E E T

L A

Y O

U T

E A

R R

A N

L E T

T E

A D

L L

R O

T E

C T

N R

E V

H A T

C L D

S P

L W

A Y S

1, D

A D

L W

A Y

A T

N S

C L D

S-6

SHEET 16 OF 21

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R O

C O

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

S Y

M B

O L

D E S

C R

N D

A T E

A P P

R O

V E

D E S

W H

C L D

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

BANDED END

(TYP.)

C 5x6.7

(TYP.)

C 5x6.7

C 5x6.7C 5x6.7

C 5x6.7 C 5x6.7

STEEL SPILLWAY

E C

CROSS BARS SPAN THIS DIRECTION

8’-2"

0’-2"

3’-11�" (GRATING DIMENSION)

R A

E N

MIN

HANDRAIL DETAIL

SHALL BE GALVANIZED IN ACCORDANCE WITH ASTM A 123.

POUNDS PER SQUARE FOOT ON A 48�" SPAN AND DEFLECT LESS THAN �". GRATING

CROSS BARS. GRATING IS TO SAFELY SUSTAIN A UNIFORMLY DISTRIBUTED LOAD OF 200

MAIN BARS TO BE "DOVETAIL" SLOTTED AND HAVE THEIR SLOTS SOLIDLY FILLED BY THE

SO AS NOT TO REMOVE EXCESSIVE MATERIAL FROM THE LOAD SUSTAINING MEMBERS.

CENTER. MAIN BARS AND CROSS BARS TO BE SLOTTED AT THEIR INTERSECTIONS

TO BE RECTANGULAR CROSS SECTION, FLUSH TOP AND SPACED AT 4" CENTER TO

BARS TO BE SERRATED 1�" x�" SPACED AT 1�" CENTER TO CENTER. CROSS BARS

BY IKG INDUSTRIES, A DIVISION OF HARSCO CORPORATION, OR APPROVED EQUAL. MAIN

GRATING TO BE PRESSURE LOCKED RECTANGULAR DESIGN, TYPE B, AS MANUFACTURED

RAILING AND GRATING.

CONTRACTOR TO FIELD VERIFY ALL DIMENSIONS, PRIOR TO FABRICATION OF THE

WITH ASTM A 123.

ALL STEEL RAILING, CONNECTION PLATES, ETC. SHALL BE GALVANIZED IN ACCORDANCE

NOTES

4. ALL STEEL HARDWARE SHALL BE GALVANIZED IN ACCORDANCE WITH ASTM A 153.

N.T.S.

1’-9"

1�"

3’-6"

L 3x3x�

(TYP.)

L 3x3x�

(TYP.)

MITER CORNERS

(TYP.)

�" DIA. A325 GALV.

BOLT (TYP.)

STEEL GRATING MAIN

BAR �x 1 �

GRATING, BANDED END (TYP.)

P �X 1�L

MAIN BAR �x 1�

(TYP.)

BEARING P �x 1 x 1�L

N.T.S.

BEARING PLATE DETAIL

�" BANDING BAR

STEEL WALKWAY

DRILL BOLT HOLES.

CONTRACTOR TO FIELD

SIDES)

HANDRAIL (TYP. 3

C 5x6.7

GRATING CONNECTION DETAIL

N.T.S.

C 5x6.7

(TYP.)

�" DIA. A325 BOLT

AT EACH CORNER

AND 12" MAX.

NOTE: BANDING BAR NOT SHOWN

MAIN GRATING BAR, �x 1�

BEARING P �x 1 x 1�

STRUCTURES, SECTION 1080.

WITH NCDOT STANDARD SPECIFICATIONS FOR ROADS AND

BE PAINTED WITH TWO COATS OF ZINC RICH PAINT, IN ACCORDANCE

REQUIRED. EXPOSED STEEL FROM FIELD DRILLING HOLES TO

CONTRACTOR TO FIELD DRILL BOLT HOLES IN C 5X6.7 WHERE

(HINGE SIDE)

(LOCK SIDE)

MODIFICATION NOTES

N.T.S.

MODIFICATION NOTES

NEW HATCH (2’ X 3’) SEE

MODIFICATION NOTES

SPACE ENTRY DAVIT SEE

NEW BASE FOR CONFINED

1 1

5. 2

2 PLAN - SPILLWAY RISER MODIFICATIONS

TO SPILLWAY RISER STRUCTURES FOR SPILLWAYS 1, 4, 5, 6, 7, 8, AND 9.

OF THE RISER STRUCTURE. SPILLWAY RISER ACCESS MODIFICATIONS SHALL BE MADE

LOCATED ON THE INTERIOR OF THE BACKSIDE (SIDE WITH ‰-INCH PLATE STEEL)

ENTRY AND RESCUE SYSTEM EQUIPMENT. THE FIXED VERTICAL LADDER SHALL BE

INCLUDE: AN ACCESS HATCH DOOR, A FIXED VERTICAL LADDER, AND CONFINED SPACE

THE CONTRACTOR SHALL MODIFY EXISTING SPILLWAY RISER STRUCTURES TO

COMPLY WITH THE REQUIREMENTS OF SPEC SECTION 33 40 02 SPILLWAY SYSTEM.

ENTRY POST AND DAVIT. THE CONFINED SPACE ENTRY BASE AND DAVIT SHALL

CONTRACTOR SHALL BOLT MANUFACTURED BASE FOR A CONFINED SPACE

FRAMING FOR 2-FT X 3-FT ACCESS DOOR.

MODIFY TOP STEEL RISER TO INCLUDE L2x2x1/4 STEEL MEMBERS TO PROVIDE

VALVE STEM.

ALLOW ACCES FOR A "T" HANDLE VALVE WRENCH TO OPERATE THE GATE

THE CONTRACTOR SHALL MODIFY THE GRATING FOR SPILLWAY 7 RISER TO

RISER. ACCESS DOOR SHALL BE STAINLESS STEEL WITH HINGES AND LOCKING DEVICE.

INSTALLATION OF A 2-FT X 3-FT ACCESS DOOR ON THE TOP OF THE SPILLWAY

THE CONTRACTOR SHALL MODIFY THE GRATING FOR EACH SPILLWAY TO ALLOW

15_EI_14_SPWAY_DETAILS4.dgn 9/10/2013 3:17:06 PM

PARAGRAPH FILL ABOVE GEOGRID.

COMPLY WITH SPECIFICATION SECTION 31 01 00 DIKE EMBANKMENT,

5. FILL MATERIAL BETWEEN GEOTEXTILE AND GEOGRID AT ELEV. 15 SHALL

SECTION 31 05 21 GEOGRID.

4. GEOGRID FOR DIKE EMBANKMENT SHALL COMPLY WITH SPECIFICATION

THAT IS IN GOOD CONDITION WITH NO TEARS OR HOLES.

EXCAVATION. THE NEW GEOTEXTILE SHALL OVERLAP EXISTING GEOTEXTILE

WITHOUT TEARS OR HOLES FROM EQUIPMENT ON BOTH SIDES OF THE

IN A MANNER THAT SHALL RETAIN 10-FEET OF GEOTEXTILE MATERIAL

3. THE CONTRACTOR SHALL EXCAVATE TO EXISTING GEOTEXTILE LAYERS

NEW TO EXISTING GEOTEXTILE FABRIC SEAMS ARE NOT REQUIRED TO BE SEWN.

EXISTING GEOTEXTILE FABRIC SHALL OVERLAP 10-FEET. NEW TO NEW AND

GEOTEXTILE FABRIC SHALL OVERLAP 3-FEET. NEW GEOTEXTILE FABRIC TO

SECTION 31 05 22 GEOTEXTILE. NEW GEOTEXTILE FABRIC TO NEW

2. GEOTEXTILE FOR DIKE EMBANKMENT SHALL COMPLY WITH SPECIFICATION

SPECIFICATION SECTION 31 01 00 DIKE EMBANKMENT.

1. EXCAVATION AND BACKFILL OF DIKE EMBANKMENT SHALL COMPLY WITH

DIKE EMBANKMENT NOTES:

12’ (TYP)

SADDLE AND CAP

REMOVE CONCRETE

N.T.S.

EL 27’

EL 19’

EL 15’

CONCRETE CRADLE

BELOW BOTTOM OF

CUT PILES 1-FOOT

C H

D E S

C T

PIPE

VARIES

30’

4’ TYP

PIPE

30" O.D. STEEL

REMOVE EXISTING

1’

(SEE NOTE 3)

THE EXISTING GEOTEXTILE BY 10’.

NEW GEOTEXTILE MUST OVERLAP

(APPROX ELEV +39 NAVD88)

TOP OF DIKE

BACKFILL TO EXISTING

D R

E X

C A

V A T

N .d g n

P E I_

S P

W A

Y D

E T

S-9

SHEET 21 OF 21

E X

C A

V A T

S P

L W

S E P

A D

E E T

C L D

B C D

E F G H

D E S

C R

N D

A T E

A P P

R O

V E

D S

Y M

B O

M E

G T

O N

N O

R O

C O

N G

E E

R S

U .S

A R

M Y

N G

T R

D A T E

R E

D R

A W

D E

NUMBER

PLATE

S Y

M B

O L

D E S

C R

N D

A T E

A P P

R O

V E

D E S

W H

C L D

B R

U N

S W

U N

T Y

N O

R O

G T

R B

O R

F Y

A G

L E

L A

P R

O V E

M E

N T S

SPILLWAY 3 - TYPICAL DIKE EMBANKMENT EXCAVATION SECTION

GEOTEXTILE

12H TO 4V (TYP.)

STEP SLOPED AT

GEOTEXTILE

GEOGRID

1-FOOT LAYER

FILL MATERIAL

23_EI_14_SPWAY_3_DETAILS_EXCAVATION.DGN 9/10/2013 10:59:22 AM

REVISED------ G-1 INDEX OF DRAWINGS

REVISED------ G-2 LOCATION MAP

ADDED------ C-9 SITE PLAN - SPILLWAY 3

ADDED------ C-10 DEMOLITION PROFILE AND NEW PROFILE SPILLWAY 3

REVISED------ S-1 SPILLWAY DETAILS EXCAVATION

REVISED------ S-6 4X8 SPILLWAY DETAILS SHEET 4 OF 4

ADDED------ S-9 SPILLWAY DETAILS EXCAVATION

File details come from the government source that posted it. Updated Nov 14, 2017.