Drawings - Chute Repairs FY21 W9128F21B0018.pdf

PDF 13 MB Posted Aug 3, 2021

Attached to: Chute Repairs FY21 Missouri River; Atchison and Holt County, Missouri; Nemaha County, Nebraska
Solicitation number: W9128F21B0018
Issued by: Department of the Army Corps of Engineers Engineering District Omaha

About this file

Written by GovTribe AI · Dec 28, 2023

This solicitation is for an Invitation for Bid from the U.S. Army Corps of Engineers Omaha District for chute repairs on the Missouri River. The scope of work involves repairing priority 1 structures damaged by flooding in 2018 and 2019 at three locations, including placing rock at control structures, dikes, eroded banks and island tips. The repairs are considered emergency actions to address critical infrastructure threats. The work consists of grading and placing rock meeting specifications. The construction period is 730 calendar days from notice to proceed. The estimated value is between $1,000,000 to $5,000,000. The solicitation closes on September 7, 2021 and is restricted to small businesses. The U.S. Army Corps of Engineers Omaha District will post all documents to SAM.gov.

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Other files

File	Type	Posted
Signed - Abstract of Bids W9128F21B0018 Chute Repair 2021.pdf	PDF	Sep 7, 2021
Site Visit Sign In - W9128F21B0015 - MRRP Chute Repairs FY21.pdf	PDF	Aug 30, 2021
Amendment 0001.pdf	PDF	Aug 30, 2021
W9128F21B0018 - Chute Repairs FY21 Solicitation .pdf	PDF	Aug 3, 2021
Specs - MRRP Chute Repair Mo River W9128F21B0018.pdf	PDF	Aug 3, 2021

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US Army Corps of Engineers

Omaha District

ADVERTISEMENT SET

CHUTE REPAIRS FY21

MISSOURI RIVER RECOVERY PROGRAM

NEMAHA COUNTY, NEBRASKA

ATCHISON AND HOLT COUNTY, MISSOURI

MISSOURI RIVER

W9128F-18-F-0XXX

CONTRACT NO.

SOLICITATION NO. W9128F21B0018

AUGUST 2021

INDEX

BURT

LOCATION MAP

NOT TO SCALE

MINNESOTA

SOUTH DAKOTA

NEBRASKA

MISSOURI

IOWA

C O

L N

LYON

MURRAY

S A

N B

O R

MINOR

KINGSBURY

BROOKINGS

LAKE MOODY

AURORA

D A

O N

H A

N S

O N

M C C

O O

MINNEHAHA

CHARLES MIX

HUTCHINSON TURNER

C O

L N

Y A N

K T O

CLAYBOYD U

HOLT

KNOX

C E D

A R

D A K O

G A R F

W H E E

A N T E L O P

E PIERCE

WAYNE

THURSTON

VALLEY

BOONE

G R E E

M A D

O N

S T A

N T O

CUMING

MARTINJACKSON

NOBLESROCK

COTTON-

WOOD

S T

O N

LYON

SCEO

CKI

NSO

EMMET

K O S S U

HANCOCK

WRIGHT

PALO

ALTO

P O

C A H

O N

H U

M B O

W E B S

H A

C A

O U

U X

O 'B

N CLAY

PLYMOUTH

C H E R

O K E E

SAC

IDA

MONONA

CRAWFORD CARROLL

GREENE

BOONE STORY

POLK

DALLAS

A U

D U

B O

SHELBY

ATT

MILLS

F R E

M O

N T

G G

HARRISON

BUENA

VISTA

CASS

ADAIR

MADISON

MONT-

GOMERY

ADAMS UNION

TAYLOR

PAGE

NODAWAY

ATCHISON

CHARDSON

PAWNEE

GAGE

JEFFER-

SON

NEMAHA

OTOE

CASS

SARPY

DOUGLAS

N S O

NANCE

M E R R

H A

T O

CLAY

L M

O R E

SALINE

SEWARD

L A

N C

A S

T E

SAUNDERS

BUTLER

C O L F A X

DODGE

WASH-

INGTON

HALL

HOWARD

PLATTE

POLK

YORK

DOUGLAS

B O

H O

M M

W A

W A N

G U T H

O N

PROJECT LOCATION

HOLT

CRP REFERENCE TABLEMRR8C304MRR8C000.DGN

RUSH RIVER FLOW AND STAGE INFOMRR8C303MRR8C000.DGN

DEROIN RIVER FLOW AND STAGE INFOMRR8C302MRR8C000.DGN

LANGDON RIVER FLOW AND STAGE INFOMRR8C301MRR8C000.DGN

SECTION AND PEAK STONE BETWEEN DIKES SECTION

DEROIN LOWER CONTROL STRUCTURE REVETMENT MRR8C208MRR8C000.DGN

DEROIN SIDE CHANNEL GRADE CONTROL SECTIONSMRR8C207MRR8C000.DGN

DEROIN BREACH CLOSURE SECTIONSMRR8C206MRR8C000.DGN

DEROIN DIKE NOTCH AND L-HEAD TYPICALSMRR8C205MRR8C000.DGN

DEROIN BSNP REVETMENT REPAIR TYPICALSMRR8C204MRR8C000.DGN

DEROIN ISLAND TIP GRADINGMRR8C203MRR8C000.DGN

RUSH TYPICAL SECTIONSMRR8C202MRR8C000.DGN

LANGDON TYPICAL SECTIONSMRR8C201MRR8C000.DGN

DEROIN LOCATION MAP (5 OF 5)MRR8C107MRR8C000.DGN

DEROIN LOCATION MAP (4 OF 5)MRR8C106MRR8C000.DGN

DEROIN LOCATION MAP (3 OF 5)MRR8C105MRR8C000.DGN

DEROIN LOCATION MAP (2 OF 5)MRR8C104MRR8C000.DGN

DEROIN LOCATION MAP (1 OF 5)MRR8C103MRR8C000.DGN

RUSH LOCATION MAPMRR8C102MRR8C000.DGN

LANGDON LOCATION MAPMRR8C101MRR8C000.DGN

LOCATION MAP AND INDEXMRR8C001MRR8C000.DGN

COVER SHEETMRR8B001MRR8C000.DGN

DESCRIPTIONSHEETNAMEFILENAME

WOODBURY

S O

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

U T

E R

E P

S F

S O

U R I

E R R

E C

O V

E R

Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

L O

C A

N M

A P A

N D I

N D

E X

C0.01

S O

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

U T

E R

E P

S F

S O

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E C

O V

E R

Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

EXISTING GROUND

EXCAVATE AND BACKFILL

ANGLE OF REPOSE

25'

60'

BURIED

STONE

REFUSAL

NOT TO SCALE

ELEVATION = CRP +1.0' (el. 882.6)

COORDINATE POINT AS SHOWN IN THE SITE PLANS

SHOWN IN THE SITE PLANS

COORDINATE POINT AS

CRP +5.0' (el. 886.6)

ELEVATION =

(AVE 7 TONS/LF)

NEW STONE FILL (AVE 23 TONS/LF)

TYPICAL SECTION

TYPICAL CENTERLINE PROFILE OF SPUR DIKE

REPOSE

ANGLE OF

NOT TO SCALE

PLAN VIEW

NOT TO SCALE

PILING

50'

2SECTION

1SECTION

EXISTING GROUND LINE

INVERT ELEVATION 5' BELOW CRP

V A

B L E

A Z

U T

H L

S T

R U

C T

U R

DIKE REMOVAL DETAIL

PLANE (CRP)

REFERENCE

CONSTRUCTION

BELOW THE CRP

FIVE FEET

PILES) TO

(INCLUDING

ROCK DIKE

EXISTING

REMOVE

PILES IF APPLICABLE) TO FIVE FEET BELOW THE CRP

REMOVE EXISTING ROCK DIKE (INCLUDING

EXISTING STONE FILL

EXISTING ROCK DIKE

REMOVE EXISTING PILES AND ROCK DIKE TO 5' BELOW CRP

50'

BE PLACED NEXT TO EXISITING STRUCTURE.

STONE REMOVED FROM THE ROCK FILL DIKE SHALL

.d g n

E N

A M

C2.01

L A

N G

D O

N T

Y P

A L S

E C

ADVERTISEMENT SET

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

U T

E R

E P

S F

S O

U R I

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O V

E R

Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

ELEVATION = 857.2'

ANGLE OF REPOSE

MINIMUM 2.5FT THICKNESS

WATER LEVEL VARIES

1.5

MIN 2'

VARIES

RESHAPE BANK TO ACCOMODATE STONE

ANGLE OF REPOSE

EXISTING GROUND

(AVE 7 TONS/LF)

STONE FILL

12FT

ELEVATION = 857.2'

1.5

EXCAVATE AND BACKFILL (MINIMUM 1' COVER)

EXISTING GROUND

10'

GREATER

CREST, WHICHEVER IS

TO TOP OF EXISTING

OR EQUIVALENT

TO ELEV 857.2'

WITH RIPRAP

FILL SCOUR HOLE

EXISTING GRADE CONTROL

RIGHT ABUTMENT OF

GREATER

CREST, WHICHEVER IS

TO TOP OF EXISTING

OR EQUIVALENT

TO ELEV 857.2'

WITH RIPRAP

FILL SCOUR HOLE

MIN 2.5' THICKNESS

NOT TO SCALE

PROFILE

GRADE CONTROL SCOUR FILL

NOT TO SCALE

SECTION

GRADE CONTROL SCOUR FILL

NOT TO SCALE

SECTION

UPSTREAM AND DOWNSTREAM REVETMENT

1.5

NOT TO SCALE

SECTION

REFUSAL

40'

BURIED REFUSAL

EXCAVATE AND BACKFILL

EXISTING GROUND

E N

A M

C2.02

S H T

Y P

A L S

E C

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

U T

E R

E P

S F

S O

U R I

E R R

E C

O V

E R

Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

E L E

V F

T N

A V

0 50 100 150-50-100-150

0+00

E L E

V F

T N

A V

0 50 100 150-50-100-150

0+50

E L E

V F

T N

A V

0 50 100 150-50-100-150

1+00

E L E

V F

T N

A V

0 50 100 150-50-100-150

1+50

E L E

V F

T N

A V

0 50 100 150-50-100-150

2+00

E L E

V F

T N

A V

0 50 100 150-50-100-150

2+50

E L E

V F

T N

A V

0 50 100 150-50-100-150

3+00

E L E

V F

T N

A V

0 50 100 150-50-100-150

3+50

E L E

V F

T N

A V

0 50 100 150-50-100-150

4+00

E L E

V F

T N

A V

0 50 100 150-50-100-150

4+50

E L E

V F

T N

A V

0 50 100 150-50-100-150

4+89

890890

0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

ISLAND PROFILE

ISLAND SECTIONS

EXISTING RANDOM FILL TOPSOIL EXISTING PEAK STONE REVETMENT

C2.03

D E

R O

I S

L A

N D T

R A

HORIZONTAL SCALE: 1" = 50'-0"

0 50'50' 25'

VERTICAL SCALE: 1" = 5'-0"

0 5'5' 2.5'

VERTICAL SCALE: 1" = 10'-0"

0 10'10' 5'

SOURCING FILL AND DELIVERING TO SITE

NOTE: CONTRACTOR IS RESPONSIBLE FOR

ELEV 884'

ELEV 883'

3H:1V

C J S

R G

D B

A N

S I

10.25884928625.714637579

-150928775.114637521 station 4+88.57

46.43343928605.914637628

-150928789.114637557 station 4+50.00

44.33223928625.814637674

-150928807.114637603 station 4+00.00

42.21623928645.914637719

-150928825.114637650 station 3+50.00

50.82528928655.914637769

-150928843.214637697 station 3+00.00

49.95389928674.714637815

-103.273928817.614637760 station 2+50.00

56.82123928686.314637865

-91.863992882514637811 station 2+00.00

48.43078928712.214637908

-112.856928862.614637850 station 1+50.00

38.25389928739.714637951

-75.5962928845.914637910 station 1+00.00 offset eastingnorthing

CROSS SECTION ENDPOINT COORDINATES

SECTION

DEGRADED

1V ON 1 1/4 H

APPROX. SLOPE

1V ON 1 1/4 H

APPROX. SLOPE

S O

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

U T

E R

E P

S F

S O

U R I

E R R

E C

O V

E R

Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

STONE FILL

EXISTING

STRUCTURE

EXISTING PILE

AND THE QUANTITIES ESTIMATED IN THE BID SHEET FOR ANY STRUCTURE WITHOUT APPROVAL OF THE COR.

4. REPAIR SEGMENT LENGTH AND ROCK TONS SHALL NOT BE EXPANDED BEYOND THE LENGTHS SHOWN ON THE PLANS

STRUCTURE WITH THE DESIRED GEOMETRY AND MINIMAL VOIDS.

WITH THIS PROCESS. AVOID INCREASING THE REVETMENT LAYER THICKNESS. THIS SHOULD RESULT IN A DENSE AND COMPACT THE ROCK DOWN TO ACHIEVE DESIGN ELEVATION. DO NOT DAMAGE THE REVETMENT OR UNDERLYING BANK MATERIAL WHEN PLACING ROCK ON A REVETMENT IN AREAS WITH AN INTACT BANK BACKING, BUILD ABOVE FINAL GRADE AND TAMP THE REPAIR SECTION AND THEN TAMPING THE ROCK DOWN TO ACHIEVE THE DESIRED CROWN WIDTH AND ELEVATION.

PRACTICE IS SIMILAR TO A DIKE. REPAIR WILL CONSIST OF BUILDING THE STRUCTURE HEIGHT ABOVE THE FINAL GRADE IN

3. AT KICKER STRUCTURES AND REVETMENTS THAT HAVE LOST ALL BANK BACKING MATERIAL BEHIND THE REVETMENT REPAIR, LOWER NON-REPAIR SECTION THAT WOULD CREATE BANK EROSIVE CONDITIONS DUE TO REVETMENT ROCK HEIGHT.

FLOW PATH ALONG THE BANK. UNDER NO CIRCUMSTANCES SHALL THE REVETMENT REPAIR BE TERMINATED TO CAUSE A FIELD ADJUSTMENT MAY BE REQUIRED TO AVOID CREATION OF A LOWER NON-REPAIR SECTION THAT WOULD CREATE A WHEN PRACTICAL. GENERAL PRACTICE IS TO CONTINUE THE REPAIR SEGMENT UNTIL ELEVATIONS ARE WITHIN ONE FOOT.

PREFERABLE IS THAT THE REPAIR SEGMENT TERMINATES IN AN AREA WITH GOOD QUALITY BANK MATERIAL BACKING FINAL REVETMENT GRADE IN THE REPAIR SECTION MAY BE HIGHER THAN AN ADJACENT UNREPAIRED SECTION.

2. REVETMENT STRUCTURE REPAIRS MAY INCLUDE ONE OR MORE SEPARATE SEGMENTS AND NOT THE ENTIRE STRUCTURE.

THE LANDWARD DIKE END BE LOWER ELEVATION THAN THE RIVERWARD END.

AND COMPACT STRUCTURE WITH THE DESIRED GEOMETRY AND MINIMAL VOIDS. UNDER NO CIRCUMSTANCES SHALL TAMP THE ROCK IN A MANNER THAT RESULTS IN SIGNIFICANT MATERIAL DAMAGE. THIS SHOULD RESULT IN A DENSE SECTION AND THEN TAMPING THE ROCK DOWN TO ACHIEVE THE DESIRED CROWN WIDTH AND ELEVATION. DO NOT THIS PROCESS WILL CONSIST OF BUILDING THE DIKE HEIGHT SLIGHTLY ABOVE THE FINAL GRADE IN THE REPAIR SLOPE (MAXIMUM OF 1 FOOT) FOR ENTIRE DIKE LENGTH FROM THE BANK TO THE RIVERWARD END. NORMALLY TO THE RIVERWARD END. CONTRACTOR SHALL REGRADE THE ENTIRE DIKE TOP AS NECESSARY TO PROVIDE MINIMAL

1. FINAL CONSTRUCTED DIKE CROWN MUST MAINTAIN A LEVEL OR SLIGHT DOWNWARD SLOPE FROM THE BANK

STONE NOTES:

DEFICIENCY LENGTH

SEE C1 PLAN SHEETS FOR

TO CRP (+3)

REPAIR REVETMENTS

TO CRP (+3)

REPAIR REVETMENTS

WITHOUT EXCAVATION

MOORING CLUMPS

STONE FILL REVETMENT STONE FILL REVETMENT

WITH EXCAVATION

1V on 1H 1V o n 1H

RIVERWARD SIDE

STRUCTURE AZIMUTH LINE

LANDWARD SIDE

1V ON 1 1/4 H

APPROX. SLOPE

EXISTING GROUND

STONE FILL

EXISTING GROUND

RIVERWARD SIDE

STRUCTURE AZIMUTH LINE

LANDWARD SIDE

FILL

STONE

1V ON 1 1/4 H

APPROX. SLOPE

GROUND

EXISTING

VARIABLE

V A

EXISTING GROUND

REFERENCE PLANE (CRP)

CONSTRUCTION

REFERENCE PLANE (CRP)

CONSTRUCTION

AND GENERAL REPAIR GUIDANCE.

"STRUCTURES" FOR DEFINITIONS

1) SEE SPECIFICATION 35 31 20

NOTES:

REPAIR HEIGHT

AVERAGE

5'5'

REPAIR HEIGHT

AVERAGE

NOT TO SCALE

REVETMENT

EXISTING

REVETMENT REPAIR TYPICAL - PLAN VIEW

PILING

NOT TO SCALE

1SECTION

NOT TO SCALE

SECTION 2

NOT TO SCALE

SECTION 2

E N

A M

C2.04

D E

R O

S N

P R

E V

E T

M E

N T R

E P

Y P

OF DIKE TO HEIGHT OF CRP+3

FILL NOTCH AND REMAINDER

SECTION

DEGRADED

INTERSECTION WITH DIKE

S O

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

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S F

S O

U R I

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E C

O V

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Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

C E

N T

E R L

S T

R U

C T

11 ON 1

TO EXCEED

BUT NOT

11 ON 1

SLOPE

APPROX.

11 ON 1

TO EXCEED

BUT NOT

11 ON 1

SLOPE

APPROX.

STONE FILL

EXISTING GROUND LINE

NOT TO SCALE

TYPICAL CROSS SECTION OF L-HEAD DIKE

CRP+3

CRP +3

HIGH BANK

EXISTING

SECTION 1

LENGTH OF REPAIR

H B

A N

E X

ROCK DIKE

EXISTING

DIKE REPAIR TYPICAL - PLAN VIEW

NOT TO SCALE

PILING

ANGLE OF REPOSE

STONE FILL

NOT TO SCALE

SHOWN IN THE SITE PLANS

COORDINATE POINT AS

TYPICAL SECTION

TYPICAL CENTERLINE PROFILE OF L-HEAD

SHOWN IN THE SITE PLANS

COORDINATE POINT AS

E N

A M

C2.05

R O

E A

N D L -H

E A

D T

Y P

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

U T

E R

E P

S F

S O

U R I

E R R

E C

O V

E R

Y P

R O

G R

A M

C J S

R G

D B

A N

S I

A U

G U

S T

N 14639331

E 929542

N 14639518

N 14639398

E 929534

E 929561

N 14639563

N 14639539

E 929556

E 929490

N 14639520 E 929523

E 929546 N 14639526

N 14639410

E 929586

N 14639386 E 929546

N 14639378 E 929541

N 14639372 E 929543

880880

0+00 0+50

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

880880

0+00 0+50 1+00

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

880880

0+00 0+50 1+00 1+50 2+00

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

N I

N F

E E

T A

B O

V E M

TYPICAL REVETMENT CROSS-SECTION TYPICAL CLOSURE CROSS-SECTION TYPICAL CLOSURE PROFILE

E N

A M

C2.06

R O

R E

A C

H C

L O

S U

R E S

E C

N S

10'

EXISTING GROUND

REPOSE

ANGLE

REPOSE

ANGLE

HORIZONTAL SCALE VERTICAL SCALE

0 5' 10'50' 100'0

ELEV 877'

ELEV 873.5'

ELEV 877'

ELEV 873.5'

3' MIN3' MIN

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

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R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

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O L A

V E

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E O

M A

H A D

T R

C H

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U R I

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O V

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Y P

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C J S

R G

D B

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S I

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G U

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ELEV 876'

880880

0+00 0+50 1+00 1+50

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

REVETMENT SECTION

DOWNSTREAM & UPSTREAM

SIDE CHANNEL BLOCK

REPOSE

ANGLE

MIN 2.5' THICK

EXISTING CHANNEL

BURIED KEY REFUSAL TYPICAL SECTION

ELEV 876'

BURIED KEY REFUSAL

15'

BURIED KEY REFUSAL

880880

0+00 0+50 1+00 1+50

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

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E E

T A

B O

V E M

S L

875875

0+00 0+50 1+00 1+50

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

E L E

V A

N I

N F

E E

T A

B O

V E M

S L

CREST SECTION

SIDE CHANNEL BLOCK

CENTERLINE PROFILE

SIDE CHANNEL BLOCK

10'

REPOSE

ANGLE

EXISTING CHANNELEXISTING CHANNEL

ELEV 872.5'

ANGLE OF REPOSE

EXISTING GROUND

(AVE 7 TONS/LF)

STONE FILL

12'

EXCAVATE AND BACKFILL (MINIMUM 1' COVER)

PLAN VIEW TYPICAL

SIDE CHANNEL BLOCK

ELEVATION = 876'

MIN 2.5' THICK

NOT TO SCALE

SECTION

REFUSAL

E N

A M

E N

U M

B E

C2.07

C T

N S

D E

R O

E C

H A

N N

E L G

R A

D E C

O N

T R

O L

HORIZONTAL SCALE VERTICAL SCALE

50' 100'0 0 5' 10'

10'

ELEV 873'

EXISTING GROUND VARIES (~860-870)

ELEV 876

S O

A T

N N

D E

N E

D B

D E

S C

N M

A R

S U

B M

T E

D B

D A

T E

C O

N T

R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

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N E

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M A

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C H

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E R

Y P

R O

G R

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C J S

R G

D B

A N

S I

A U

G U

S T

1.5

NOT TO SCALE

AVE 12.5 TON/LF

THICKER SLOPE AS SHOWN

MINIMUM 2.5 FT WITH

ANGLE OF REPOSE

VARIES

REVETMENT SECTION

LOWER CONTROL STRUCTURE

NOT TO SCALE

TYPICAL SECTION

BETWEEN DIKES

PEAK STONE REVETMENT

E N

A M

C2.08

E S S

E C

A N

D P

E A

K S

T O

N E R

E V

E T

M E

N T B

E T

W E

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R E

V E

T M

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T S

E C

D E

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O W

E R C

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T R

O L S

T R

U C

T U

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V E

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U M

B E

A T

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D E

N E

D B

D E

S C

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S U

B M

T E

D B

D A

T E

C O

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R A

C T N

C H

E C

K E

D B

D R

A W

N B

U E D

A T

SHEET ID

1 98765432 of Engineers

US Army Corps

O M

A H

N E

A P

O L A

V E

U S

A C

E O

M A

H A D

T R

C H

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S F

S O

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D B

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S I

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G U

S T

(Elevations based on monthly average flows.)

MISSOURI RIVER RECENT DAILY FLOW (CFS)

OPERATING PLAN, PLATE 3. (http://www.nwd-mr.usace.army.mil/rcc/aop.html).

BASED ON THE MARCH 15 SYSTEM STORAGE CHECK AS OUTLINED IN THE ANNUAL

FLOW SUPPORTS, EITHER FULL OR MINIMUM OR SOMEWHERE IN BETWEEN, WILL BE

THE FOLLOWING SPRING IN LATE MARCH. THE DETERMINATION OF NAVIGATION SEASON

9,000 CFS FOR AN EXTENDED PERIOD. NAVIGATION SUPPORT NORMALLY BEGINS AGAIN

ENDS, FLOWS WILL DROP OFF SIGNIFICANTLY AND GAVINS RELEASES MAY BE AS LOW AS

THE SITUATION RETURNS TO A MORE NORMAL CONDITION. ONCE THE NAVIGATION SEASON

DAM. FLOWS CAN REMAIN AT THESE ALTERED LEVELS FOR A SIGNIFICANT PERIOD UNTIL

OBJECTIVES SHOULD TRIBUTARY FLOWS INCREASE SIGNIFICANTLY BELOW GAVINS POINT

TO MEET SYSTEM FLOOD POOL EVACUATION NEEDS OR DOWNSTREAM FLOOD CONTROL

THIS REACH OF THE RIVER FLOWS CAN AT ANY TIME BE SIGNIFICANTLY ALTERED

PERIOD APRIL THROUGH OCTOBER. IT IS ALSO IMPORTANT TO UNDERSTAND THAT IN

THAN 25,000 CFS FOR PROLONGED DURATIONS OVER THE LAST FEW YEARS IN THE

APPARENT THAT THE RIVER BETWEEN SIOUX CITY AND OMAHA HAS FLOWED AT LESS

NORMAL RESERVOIR OPERATIONS AND DROUGHT CONSERVATION MEASURES. IT IS

DISCRETIONARY WHEN COMMERCIAL BARGE TRAFFIC IS NOT PRESENT AS PART OF

4. NAVIGATION SUPPORT FLOW RELEASES FROM GAVINS POINT DAM HAVE BECOME

TARGET LOCATION FOR NAVIGATION SUPPORT FLOWS BUT IS ASSUMED THE SAME.

SUPPORT FLOW IS 25,000 CFS AT BOTH OMAHA AND SIOUX CITY. DECATUR IS NOT A

NAVIGATION FLOWS ELIMINATED IF NECESSARY. THE MINIMUM SERVICE NAVIGATION

AT THE MOUTH ALTHOUGH NAVIGATION SEASON LENGTH MAY BE SHORTENED OR

SEASON. FLOW SUPPORT FOR THE TYPICAL NAVIGATION SEASON ENDS ON 1 DECEMBER

ABOVE 25,000 CFS FROM LATE MARCH TO LATE NOVEMBER DURING THE NAVIGATION

(35,000 CFS). MISSOURI RIVER DISCHARGES IN THE PROJECT VICINITY TYPICALLY ARE

SIOUX CITY AND OMAHA (25,000 CFS), NEBRASKA CITY (31,000 CFS) AND KANSAS CITY

3. NAVIGATION TARGET LOCATIONS AND MINIMUM NAVIGATION SUPPORT FLOWS ARE:

GAVINS POINT DAM, AND/OR HIGH TRIBUTARY INFLOW.

EXTREME HIGH OR LOW RIVER LEVELS DUE TO FLOODING, DROUGHT, OPERATION OF

CONTRACTOR OPERATIONS DURING THE CONSTRUCTION PERIOD MAY BE IMPACTED BY

RIVER CLOSURES OR OPERATION RESTRICTIONS DUE TO RIVER CONDITIONS.

THE CONTRACTOR SHALL ALSO CONSULT WITH THE COAST GUARD REGARDING POSSIBLE

INFORMATION ON http://www.nwd-mr.usace.army.mil/rcc OR CALL 402-996-3870.

2. THE CONTRACTOR SHALL CONSULT THE CURRENT RIVER FLOW AND STAGE

WILL SIGNIFICANTLY AFFECT SITE FLOW CONDITIONS IN ADDITION TO RESERVOIR RELEASES.

http://www.nwd-mr.usace.army.mil/rcc/. TRIBUTARY INFLOWS AND OTHER FACTORS

RELEASES ARE UPDATED ON A MONTHLY BASIS AND ARE AVAILABLE ON OUR WEBSITE ON

DURING THE PROJECT CONSTRUCTION PERIOD. FLOW FORECAST FOR RESERVOIR

CONSISTENTLY EXPERIENCES WIDE FLOW LEVEL VARIATIONS THAT SHOULD BE EXPECTED

1. ALL MISSOURI RIVER DATA IS PROVIDED FOR INFORMATION ONLY. THE MISSOURI RIVER

MISSOURI RIVER SEASONAL FLOW LEVEL NOTES:

RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: NEBC, RULO) http://waterdata.usgs.gov/nwis/rt

06807000 (NEBRASKA CITY) AND 06813500 (RULO). THE WEBSITES ARE:

CORPS' RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE

BE OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM THE

1. INFORMATION FOR THE MISSOURI RIVER AT NEBRASKA CITY AND RULO CAN

GENERAL NOTES:

THE PREVIOUS 17 YEAR PERIOD.

ERROR. INTERPOLATED OBSERVED DATA FROM NEAREST AVAILABLE LOCATION AT VARIOUS TIMES OVER

BY ONE OR TWO FEET OR MORE DUE TO NORMAL MISSOURI RIVER FLUCTUATIONS AND COMPUTATION

2. APPROXIMATE STAGE-FLOW RATING FOR INFORMATIONAL PURPOSES ONLY. ACTUAL VALUES WILL VARY

MISSOURI RIVER WATER SURFACE ELEVATION AT DEROIN BEND

THIS DRAWING INCLUDED FOR INFORMATION ONLY

FOR MINIMUM FLOWS LIMITS ON OVERDEPTH DREDGING REFER TO PARAGRAPH 1.2 IN SPEC 02482.

THE TWO TABLES ABOVE ARE "INFORMATION ONLY" FOR FLOWS AT THE ABOVE RIVER BEND.

DRAINAGE AREA CONTRIBUTING ABOVE THIS LOCATION.

AND RULO GAGES. APPROXIMATING FLOW BETWEEN THOSE GAGES WAS BASED ON THE AMOUNT OF

FLOW VALUES FOR THIS RIVER BEND WERE DERIVED FROM DATA PUBLISHED FOR THE NEBRASKA CITY

MONTHLYAVG MISSOURIR. FLOWS (cfs) ATPROJECT SITE MINIMUM DAILY FLOWS (cfs) AT

PROJECT SITE

DEC

NOV

OCT

SEP

AUG

JUL

JUN

MAY

APR

MAR

FEB

JAN

25% EXCEED EXCEED EXCEED50% 75%

DEC

NOV

OCT

SEP

AUG

JUL

JUN

MAY

APR

MAR

FEB

JAN

S I

D M

R R

A H

N E

A P

O L A

V E

E N

A M

E N

U M

B E

C3.01

N G

D O

N R

E R F

L O

W A

N D S

T A

G E I