A22 - Amendment 0003 - Attachment J-2 Plan Set - VOL 401 Floodwall Rev2.pdf

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Attached to
Cedar Rapids Flood Risk Management Project, Reach 4 Phase 1 Downstream River Floodwall and Pump Station
Solicitation number
W912EK26BA001
Issued by

About this file

These are design and construction drawings for the Cedar Rapids Flood Risk Management Project's Downstream River Floodwall and Culverts, prepared by the U.S. Army Corps of Engineers. The document set includes typical cross-sections, profile views, plan views, trail jointing details, and specialized vault and water main penetration details for a flood control infrastructure project located in Cedar River, Cedar Rapids, Iowa (Contract No. 3317510-10).

The drawings specify construction requirements for approximately 3,000 linear feet of floodwall systems with varying configurations including 8-inch PCC trails with 1.5% slopes, modified subbase and compacted earth shoulders, safety railings, and retaining walls. Key features include stamped concrete details with sawed joints and expansion joints, sheet pile connections at the Alliant Substation, gate well retaining walls, and water main vault penetrations with casing pipes and junction structures. The specifications detail reinforcement patterns (#5 and #8 bars at 12-inch on-center spacing), shoring systems using W10x45 wales with HSS pipe struts, flowable fill materials, hydrophilic waterstops, and mechanical joint restraining glands for the 20-inch DIP water main. Construction loads are required to remain 15 feet from the steepest part of the riverbank slopes until completion, and designs accommodate a 100-year floodway elevation of approximately 729-730 feet with various site-specific elevations ranging from 705 to 740 feet noted throughout the details.

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VOL 401

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20" DIP WATER MAIN

INSIDE CONCRETE VAULT

CONCRETE CAPPED

SHEET PILE WALL

20" DIP WATER MAIN INSIDE

36" HDPE CASING PIPE

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EXISTING SHEET PILE

CONTROL LINE

CONTROL LINE

EL 712.1

EL 712.1

PIPE BEDDING

SEE A/CU304

TYPICAL VAULT SECTION OVER FLOODWALL WM STA 11+46 TO 12+45

SCALE: 1" = 10'D1

TYPICAL SECTION BETWEEN SHEET PILES WM STA 7+83 TO 10+59

SCALE: 1" = 10'A6

NOTES:

1. THE SHORING SYSTEM DEPICTED ABOVE IS ONE POSSIBLE DESIGN. A COMPLETE SHORING DESIGN MUST BE SUBMITTED FOR REVIEW AT LEAST 30 CALENDAR DAYS PRIOR TO INSTALLATION. SEE

SPECIFICATIONS SECTION 01 53 02 FOR FULL REQUIREMENTS.

2. TOP ROW OF SHORING:

· EL 725.0

· W10x19 WALES

· ROUND HSS8.625x0.322 PIPE STRUTS SPACED AT 10'-0" O.C. MAX

3. BOTTOM ROW OF SHORING:

· EL 716.0

· W10x45 WALES

· ROUND HSS8.625x0.322 PIPE STRUTS SPACED AT 10'-0" O.C. MAX

4. WALES ASSUMED TO BE A992 STEEL (50 KSI)

5. PIPE STRUTS ASSUMED TO BE A500 GRADE B STEEL (42 KSI)

6. BOTH SHEET PILE WALLS CONSIST OF PZC 13 SECTIONS

TOP ROW OF SHORING

SEE NOTES

BOTTOM ROW OF SHORING

SEE NOTES

EL 706.1

EL 705.5

10' 20'0

SCALE:1"=10'

10' 20'0

SCALE:1"=10'

SOLICITATION

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20" WATERMAIN

NOTE:

1. ALL VAULT REINFORCING IS #5 BARS AT 12" O.C. EACH WAY

UNLESS NOTED OTHERWISE.

12" IA DOT GR-11

CRUSHED STONE

FLOWABLE FILL

WATERSTOP (TYP)

EL 712.1

EL 711.6

6" 1'

-0

3' -4

4" 8"

1'-0" 1'-0"4'-6"

WATERMAIN

8' -4

7'-0"10'-9"

2' -4

8'-03 4"

#5 BARS @ 12" O.C.

EACH WAY EACH FACE

2"

TYP

FLOODWALL STEM

FLOODWALL M4003

A1-CU306A1-CU306

1'-0"

(TYP)6"

(T

YP

FLOWABLE FILL TO

PIPE SPRINGLINE

#5 BARS @ 12" O.C.

EACH WAY CENTERED

A6 -C

U

A6

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4' -4

3 4"5' -8

1 2"

4' -9

3' -6

1 2

6'-6"

22.5°

E1-CU308

E1-CU308

A1-CU306 A1-CU306

#5 BARS @ 12" O.C.

EACH WAY EACH FACE

S-12 JUNCTION STRUCTURE SECTION

SCALE: NTSE1

TYPICAL VAULT SECTION - STA 10+57.15 TO 10+92.15 AND STA 12+71.15 TO 13+06.90

SCALE: NTSA1 VAULT PLAN DETAIL

SCALE: NTSA6

SOLICITATION

EL 712.1

EL 711.1

9'-0"

WATERMAIN

HYDROPHILIC

WATERSTOP (TYP.)

6" TOP SLAB #8 BARS @ 12" O.C.

#5 BARS @ 12" O.C.

EACH WAY

TOP AND BOT.

CASING

PIPE

CASING

SPACER

FLOWABLE FILL TO

PIPE SPRINGLINE

#5 BARS @ 12" O.C.

6"

(TYP)

#5 BARS @ 12" O.C.

EACH WAY EACH FACE

CENTER BARS

IN TOP SLAB

A1-CU510

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OPENING FOR CASING PIPE

IN END OF VAULT TO BE

REINFORCED PER

"ADDITIONAL REINFORCING"

NOTE ON DETAIL A1-CU306

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CASING PIPE

WATERMAIN

#5 BARS @ 12" O.C.

EACH WAY EACH FACE

1'-0"

(TYP.)

VAR

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PIPE

C/L

2"

(TYP.)

HYDROPHILIC

WATERSTOP (TYP.)

9' -0

9'-0"

NOTE:

1. SEE JUNCTION VAULT SCHEDULE

ON SHEET CU-118 FOR ELEVATIONS.

WATERMAIN

HYDROPHILIC

WATERSTOP (TYP.)

HDPE RING FUSED

TO EXTERIOR OF PIPE

OR MECHANICAL JOINT

RESTRAINING GLAND (TYP)

#5 BARS @ 12" O.C.

EACH WAY

TOP AND BOT.

CASING

PIPE

CASING

SPACER

T/ VAULT

EL VARIES

PIPE SPRINGLINE

EL VARIES

T/ FOOTING

EL VARIES

2' -2

1'

-6

A1 -C

U

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HYDROPHILIC

WATERSTOP (TYP.) WATERMAIN

FLOW

5' -1

0"

HDPE RING FUSED

TO EXTERIOR OF PIPE

OR MECHANICAL JOINT

RESTRAINING GLAND (TYP)

FLOWABLE FILL TO

PIPE SPRINGLINE

INSTALLATION

DIRECTION

CASING SPACER SET

ON FLOOR OF VAULT

FLOWABLE FILL TO

PIPE SPRINGLINE

20" MECHANICALLY

RESTRAINED JOINT (TYP)

BEGIN 4 FT WIDE

PCC VAULT (TYP.)

FLOWABLE FILL TO

PIPE SPRINGLINE

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BEGIN 4 FT WIDE

PCC VAULT (TYP.)

CASING PIPE

20" WATERMAIN

HYDROPHILIC WATERSTOP

AROUND PIPE AND OUTER

PERIMETER OF OF BLOCKOUT

1'-0" EMBED FOR

VERTICAL AND

HORIZONTAL BARS (TYP)

2'-0"

6'-0" X 6'-0"

BLOCKOUT

FLOODWALL

FOOTING

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CASING SPACER

MECHANICAL JOINT

RESTRAINING GLAND

HDPE RING FUSED

TO EXTERIOR OF PIPE

OR MECHANICAL JOINT

RESTRAINING GLAND (TYP)

#5 BARS @ 12" O.C.

#8 BARS @ 12" O.C.

12" TOP SLAB

12" TOP SLAB

#8 BARS @ 12" O.C.

#5 BARS @ 12" O.C.

2"

(TYP.)

#8 BARS @ 12" O.C.

#7 BARS @ 12" O.C.

#5 BARS @ 12" O.C.

EACH WAY EACH FACE

#5 BARS @ 12" O.C.

EACH WAY EACH FACE

#5 BARS @ 12" O.C.

EACH WAY

TOP AND BOT.

VAULT TOP SLAB

REINFORCING

SEE D1/ CU304 FOR

SIZE AND SPACING

1'-0" EMBED FOR

VERTICAL AND

HORIZONTAL BARS (TYP)

6" VAULT WALL

NOTE:

1. REFER TO A1/ CU306 FOR REINFORCEMENT

GROUT OR EPOXY DETAILS.

S-10 JUNCTION STRUCTURE PLAN SECTION

SCALE: NTSE1 S-10 JUNCTION STRUCTURE SECTION

SCALE: NTSE6

S-10/S-12 JUNCTION STRUCTURE SECTION

SCALE: NTSA1 FLOODWALL PENETRATION DETAIL

SCALE: NTSA6

SOLICITATION

TOP HALF OF CASING PIPE TO BE LEFT

OPEN INTO THE VAULT TO ALLOW ANY

LEAKED WATER TO EXIT THE VAULT AND

DRAIN AWAY THROUGH THE CASING PIPE

TOP HALF OF CASING PIPE TO BE LEFT

OPEN INTO THE VAULT TO ALLOW ANY

LEAKED WATER TO EXIT THE VAULT AND

DRAIN AWAY THROUGH THE CASING PIPE

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OPENING FOR CASING PIPE

IN END OF VAULT TO BE

REINFORCED PER

"ADDITIONAL REINFORCING"

NOTE ON DETAIL A1-CU306

AMND_0003_PLANS_VOL401.pdf
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