2020 Mo River Bank Stab Nav Project NORTH MRQ8 Drawings_RTA.pdf
PDF 10 MB Posted
- Solicitation number
- W9128F20B0022
About this file
This is an invitation for bid for bank stabilization and navigation structure repair work along the Missouri River. The U.S. Army Corps of Engineers is seeking bids from small businesses to rehabilitate damaged bank stabilization and navigation project structures between River Mile 563 and 624 in Nebraska and Iowa. The 2019 floods caused significant damage to revetments, dikes, kickers, and other structures critical for maintaining the navigation channel. Work will involve adding stone to areas of deterioration and rebuilding parts of substantially damaged structures, with stone placement anticipated from a barge. The estimated value of construction is between $5 million and $10 million. The bid response deadline is on or about July 16, 2020, and construction duration will be 450 calendar days.
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US Army Corps of Engineers
Omaha District
MISSOURI RIVER BANK STABILIZATION
MISSOURI RIVER, IA AND NE
CONTRACT NO. W9128F-18-F-0XXX
SOLICITATION NO. W9128F20B0022
JUNE, 2020
ADVERTISEMENT SET
THE 2020 SEASON (RM 624 - 563)
REPAIR NORTH STRUCTURES FOR
& NAVIGATION PROJECT
INDEX
BURT
MISSOURI RIVER CONSTRUCTION REFERENCE PLANE (CRP)C5.06MRQ8_c000_N.DGN
MISSOURI RIVER RECENT RIVER FLOW & ELEVATION DATA (RM563)C5.05MRQ8_c000_N.DGN
MISSOURI RIVER RECENT RIVER FLOW & ELEVATION DATA (RM573)C5.04MRQ8_c000_N.DGN
MISSOURI RIVER RECENT RIVER FLOW & ELEVATION DATA (RM583)C5.03MRQ8_c000_N.DGN
MISSOURI RIVER RECENT RIVER FLOW & ELEVATION DATA (RM595)C5.02MRQ8_c000_N.DGN
MISSOURI RIVER RECENT RIVER FLOW & ELEVATION DATA (RM624)C5.01MRQ8_c000_N.DGN
C4.05 LOWERED DIKE/REVERSE SILL REPAIR TYPICAL DETAILMRQ8_c000_N.DGN
C4.04 REVETMENT/KICKER NOTCH TYPICAL DETAILMRQ8_c000_N.DGN
C4.03 REVETMENT REPAIR TYPICAL DETAILMRQ8_c000_N.DGN
C4.02 NOTCHED DIKE REPAIR TYPICAL DETAILMRQ8_c000_N.DGN
C4.01 DIKE REPAIR TYPICAL DETAILMRQ8_c000_N.DGN
C3.02 STRUCTURE TABULATION SHEET (OPTION)MRQ8_c000_N.DGN
C3.01 STRUCTURE TABULATION SHEET (BASIC)MRQ8_c000_N.DGN
PLAN SHEET - RM 568-561C2.09MRQ8_c000_N.DGN
PLAN SHEET - RM 575-568C2.08MRQ8_c000_N.DGN
PLAN SHEET - RM 582-575C2.07MRQ8_c000_N.DGN
PLAN SHEET - RM 588-582C2.06MRQ8_c000_N.DGN
PLAN SHEET - RM 595-588C2.05MRQ8_c000_N.DGN
PLAN SHEET - RM 601-595C2.04MRQ8_c000_N.DGN
PLAN SHEET - RM 609-601C2.03MRQ8_c000_N.DGN
PLAN SHEET - RM 616-609C2.02MRQ8_c000_N.DGN
PLAN SHEET - RM 625-616C2.01MRQ8_c000_N.DGN
C1.02 LAYOUT MAPMRQ8_c000_N.DGN
C1.01 LOCATION MAP & INDEXMRQ8_c000_N.DGN
- COVERMRQ8_c000_N.DGN
FILENAME SHEET NO. DESCRIPTION
C1.01
L O
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LOCATION MAP
NOT TO SCALE
MINNESOTA
SOUTH DAKOTA
NEBRASKA
MISSOURI
IOWA
L
IN
C O
L N
LYON
MURRAY
S A
N B
O R
N
MINOR
KINGSBURY
BROOKINGS
LAKE MOODY
AURORA
D A
V
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O N
H A
N S
O N
M C C
O O
K
MINNEHAHA
CHARLES MIX
HUTCHINSON TURNER
L
IN
C O
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Y A N
K T O
N
CLAYBOYD U
N
IO
N
HOLT
KNOX
C E D
A R
D A K O
TA
G A R F
IE
LD
W H E E
LE
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A N T E L O P
E PIERCE
WAYNE
THURSTON
VALLEY
BOONE
G R E E
LE
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M A D
IS
O N
S T A
N T O
N
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MARTINJACKSON
NOBLESROCK
COTTON-
WOOD
S T
O N
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LYON
O
SCEO
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DI
CKI
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EMMET
K O S S U
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HANCOCK
WRIGHT
PALO
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P O
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PLYMOUTH
C H E R
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MONONA
CRAWFORD CARROLL
GREENE
BOONE STORY
POLK
DALLAS
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PROJECT LOCATION
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A B
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C3.01
S H
E E
T O
F
OF THE WORK.
2. THE 0701 SUBMITTAL SHALL BE COMPLETED 30 DAYS WITHIN COMPLETION
DEPTH (DEFICIENCY HEIGHT) DIFFERENCES GREATER THAN 2.5 FEET.
THAN 100 FT FOR DEFICIENCY LENGTHS OF GREATER THAN 300 FT AND ANY
WITH DEFICIENCY LENGTHS OF LESS THAN 300 FT, DIFFERENCES GREATER
DEFICIENCY LENGTH DIFFERENCES GREATER THAN 50 FT FOR STRUCTURES
PLACING ROCK FOR THE STRUCTURE. EXCESSIVE DIFFERENCES INCLUDE
THE CONTRACTING OFFICERS REPRESENTATIVE FOR DIRECTION PRIOR TO
NUMBERS SHOWN ARE ENCOUNTERED, THE CONTRACTOR SHOULD CONTACT
1. IF STRUCTURE LENGTHS OR DEPTHS THAT DIFFER APPRECIABLY FROM THE
NOTES:
ALL STUCTURES INCLUDED UNDER BASE 4.
DATE NO LATER THAN 31 MAY 2021.
3. THE CONTRACTOR SHALL SUBMIT THE PROPOSED ORDER OF WORK WITHIN THE WORK PLAN FOR APPROVAL. THE STRUCTURES BELOW SHOULD BE INCLUDED IN THE WORK PLAN WITH A COMPLETION
PERFORMANCE PERIOD TO ADDRESS SPECIFIC STRUCTURES TO RELIEVE SHOALING OR OTHER PERFORMANCE ISSUES.
2. NAVIGATION CHANNEL PERFORMANCE IS CRITICAL DURING THE WORK PERIOD. ON A LIMITED BASIS, THE GOVERNMENT MAY REQUIRE THE CONTRACTOR TO SHIFT WORK ORDER DURING THE
TO ADEQUATELY PLACE (AND NOT JUST DUMP OR CAST) ROCK, AS WELL AS THE ABILITY TO INSPECT AND VERIFY QUANTITIES AT THESE HIGHER RIVER STAGES.
1. THE CONTRACTOR MUST REQUIRE SPECIFIC APPROVAL FROM THE COR PRIOR TO PLACEMENT IF THE RIVER ELEVATION IS CRP+5 OR GREATER. THE CONTRACTOR WILL NEED TO SHOW THEIR ABILITY
ORDER OF WORK NOTES:
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US ARMY CORPS
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C3.02
OF THE WORK.
2. THE 0701 SUBMITTAL SHALL BE COMPLETED 30 DAYS WITHIN COMPLETION
DEPTH (DEFICIENCY HEIGHT) DIFFERENCES GREATER THAN 2.5 FEET.
THAN 100 FT FOR DEFICIENCY LENGTHS OF GREATER THAN 300 FT AND ANY
WITH DEFICIENCY LENGTHS OF LESS THAN 300 FT, DIFFERENCES GREATER
DEFICIENCY LENGTH DIFFERENCES GREATER THAN 50 FT FOR STRUCTURES
PLACING ROCK FOR THE STRUCTURE. EXCESSIVE DIFFERENCES INCLUDE
THE CONTRACTING OFFICERS REPRESENTATIVE FOR DIRECTION PRIOR TO
NUMBERS SHOWN ARE ENCOUNTERED, THE CONTRACTOR SHOULD CONTACT
1. IF STRUCTURE LENGTHS OR DEPTHS THAT DIFFER APPRECIABLY FROM THE
NOTES:
ALL STUCTURES INCLUDED UNDER BASE 4.
DATE NO LATER THAN 31 MAY 2021.
3. THE CONTRACTOR SHALL SUBMIT THE PROPOSED ORDER OF WORK WITHIN THE WORK PLAN FOR APPROVAL. THE STRUCTURES BELOW SHOULD BE INCLUDED IN THE WORK PLAN WITH A COMPLETION
PERFORMANCE PERIOD TO ADDRESS SPECIFIC STRUCTURES TO RELIEVE SHOALING OR OTHER PERFORMANCE ISSUES.
2. NAVIGATION CHANNEL PERFORMANCE IS CRITICAL DURING THE WORK PERIOD. ON A LIMITED BASIS, THE GOVERNMENT MAY REQUIRE THE CONTRACTOR TO SHIFT WORK ORDER DURING THE
TO ADEQUATELY PLACE (AND NOT JUST DUMP OR CAST) ROCK, AS WELL AS THE ABILITY TO INSPECT AND VERIFY QUANTITIES AT THESE HIGHER RIVER STAGES.
1. THE CONTRACTOR MUST REQUIRE SPECIFIC APPROVAL FROM THE COR PRIOR TO PLACEMENT IF THE RIVER ELEVATION IS CRP+5 OR GREATER. THE CONTRACTOR WILL NEED TO SHOW THEIR ABILITY
ORDER OF WORK NOTES:
NOT TO SCALE
STRUCTURE
EXISTING PILE
OF DIKE
PORTION
BURIED
STONE FILL
EXISTING SECTION
DEGRADED
D
IK
E R
E P
A
IR
T
Y P
IC
A L D
E T
A
IL
REPAIR HEIGHT
FOR AVERAGE
SEE C3 SHEETS
DEFICIENCY LENGTH
SEE C3 SHEETS FOR
TO CRP (+2)
REPAIR DIKES
C4.01
SECTION 1
EXISTING
HIGH BANK
H
IG
H B
A N
K
E X
IS
T
IN
G
ROCK DIKE
EXISTING
DIKE REPAIR TYPICAL - PLAN VIEW
NOT TO SCALE
PILING
MILE IS LISTED ON THE C2 OR C3 SHEETS.
3) APPROXIMATE STRUCTURE RIVER
AND GENERAL REPAIR GUIDANCE.
"STRUCTURES" FOR DEFINITIONS
2) SEE SPECIFICATION 35 31 20
AVAILABLE ON THE C2 OR C3 SHEETS.
1) STRUCTURE REPAIR DIMENSIONS
NOTES:
DEFICIENCY LENGTH
SEE C3 SHEETS FOR
EXISTING GROUND
ANGLE OF REPOSE
8'
BURIED
STONE
REFUSAL
SHOWN IN THE SITE PLANS
COORDINATE POINT AS
(AVE 7 TONS/LF)
CRP +4.0'
ELEVATION =
ELEVATION = CRP +2.0
DEFICIENCY LENGTH
SEE C3 SHEETS FOR
25'
NEW STONE FILL
C E
N T
E R L
IN
E
S T
R U
C T
U R
E
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
TYPICAL CROSS SECTION OF SPUR DIKE
NOT TO SCALE
STRUCTURE WITHOUT PRIOR APPROVAL OF THE COR.
4. REPAIR SEGMENT LENGTH AND ROCK TONS SHALL NOT BE EXPANDED BEYOND THE TABULATED AMOUNT FOR ANY
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:
(RECYCLING ALL TOP SOIL REMOVED)
EXCAVATE AND BACKFILL
REPAIR TOP WIDTH
SEE C3 SHEETS FOR
WIDTH
FOR REPAIR TOP
SEE C3 SHEETS
ANGLE OF REPOSE
8'
9'
TYPICAL SECTION
BURIED STONE REFUSAL
NOT TO SCALE
(AVE 7 TONS/LF)
STONE FILL
EXISTING GROUND
ANGLE OF REPOSE
STONE FILL
NOT TO SCALE
SHOWN IN THE SITE PLANS
COORDINATE POINT AS
ELEVATION = CRP +2.0'
CRP +4.0'
OF REPOSE
ANGLE
(CRP) (typically +2)
REFERENCE PLANE
CONSTRUCTION
DISTANCE ABOVE
TYPICAL SECTION
TYPICAL CENTERLINE PROFILE OF SPUR DIKE ONLY
AZIMUTH LINE
STRUCTURE
SECTION
NOT TO SCALE
DIKE
ROCK
EXISTING
PLANE (CRP)
REFERENCE
CONSTRUCTION
PILING
NOT TO SCALE
GROUND
EXISTING
REPOSE
ANGLE OF
TYPICAL SECTION
TYPICAL CENTERLINE PROFILE OF SPUR DIKE & REFUSAL
(RECYCLING ALL TOP SOIL REMOVED)
EXCAVATE AND BACKFILL
PLANE (CRP)
REFERENCE
CONSTRUCTION
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OF ENGINEERS
US ARMY CORPS
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D .B
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EXISTING
STRUCTURE
EXISTING PILE
DEFICIENCY LENGTH
SEE C3 SHEETS FOR
DEGRADED SECTION
ROCK DIKE
EXISTING
PILING
H
IG
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IS
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VARIES
NOT TO SCALE
NOTCHED DIKE REPAIR TYPICAL - PLAN VIEW
SEE C3 SHEETS
NOTCH LENGTH
INVERT ELEVATION 3' BELOW CRP
DEFICIENCY LENGTH
SEE C3 SHEETS FOR
1 1
N O
T C
H E
D D
IK
E R
E P
A
IR
T
Y P
IC
A L D
E T
A
IL
C4.02
REPAIR HEIGHT
FOR AVERAGE
SEE C3 SHEETS
TO CRP (+2)
REPAIR DIKES
DIKE LENGTH AWAY FROM THE BANK.
A MINIMUM DISTANCE OF 2/3 THE TOTAL
5) NOTCH LOCATION SHALL BE LOCATED
NOTCH OPENINGS.
SHOULD BE MADE TO MAINTAIN
THE C2 OR C3 SHEETS. EFFORTS
4) NOTCHED DIKES ARE IDENTIFIED ON
ON THE C2 OR C3 SHEETS.
STRUCTURE RIVER MILE IS LISTED
3) APPROXIMATE
AND GENERAL REPAIR GUIDANCE.
"STRUCTURES" FOR DEFINITIONS
2) SEE SPECIFICATION 35 31 20
AVAILABLE ON THE C2 OR C3 SHEETS.
1) STRUCTURE REPAIR DIMENSIONS
NOTES:
TYP. CRP (-3)
ELEVATION
INVERT
NOTCH
REPOSE
ANGLE OF
VARIESSEE C3 SHEETS
NOTCH LENGTH
NOT TO SCALE
1SECTION
STRUCTURE WITHOUT PRIOR APPROVAL OF THE COR.
4. REPAIR SEGMENT LENGTH AND ROCK TONS SHALL NOT BE EXPANDED BEYOND THE TABULATED AMOUNT FOR ANY
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:
WIDTH
FOR REPAIR TOP
SEE C3 SHEETS
AZIMUTH LINE
STRUCTURE
NOT TO SCALE
2SECTION
PLANE (CRP)
REFERENCE
CONSTRUCTION
NOT TO SCALE
SECTION
EXISTING
DIKE
ROCK
AZIMUTH LINE
STRUCTURE
PILING
PLANE (CRP)
REFERENCE
CONSTRUCTION
.0 s f in
M R
Q c
N .d g n
/1 /2
L
IC
IT
A T
IO
N N
O
F
IL
E N
A M
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D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
R K
D E
S C
R
IP
T
IO
N A
P P
R
D A
T E
C O
N T
R A
C T N
O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
J U
N E
R E
P A
IR
N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
STONE FILL
STRUCTURE
EXISTING PILE
STRUCTURE WITHOUT PRIOR APPROVAL OF THE COR.
4. REPAIR SEGMENT LENGTH AND ROCK TONS SHALL NOT BE EXPANDED BEYOND THE TABULATED AMOUNT FOR ANY
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 C3 SHEETS FOR
R E
V E
T M
E N
T R
E P
A
IR
T
Y P
IC
A L D
E T
A
IL
SECTION
DEGRADED
C4.03
TO CRP (+4)
REPAIR REVETMENTS
TO CRP (+4)
REPAIR REVETMENTS
REPAIR TOP WIDTH
SEE C3 SHEETS FOR
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
R
IE
S
EXISTING GROUND
REFERENCE PLANE (CRP)
CONSTRUCTION
REFERENCE PLANE (CRP)
CONSTRUCTION
REPAIR HEIGHT
FOR AVERAGE
SEE C3 SHEETS
REPAIR TOP WIDTH
SEE C3 SHEETS FOR
REPAIR HEIGHT
FOR AVERAGE
SEE C3 SHEETS
1V ON 1 1/4 H
APPROX. SLOPE
1V ON 1 1/4 H
APPROX. SLOPE
ON THE C2 OR C3 SHEETS.
STRUCTURE RIVER MILE IS LISTED
3) APPROXIMATE
AND GENERAL REPAIR GUIDANCE.
"STRUCTURES" FOR DEFINITIONS
2) SEE SPECIFICATION 35 31 20
AVAILABLE ON THE C2 OR C3 SHEETS.
1) STRUCTURE REPAIR DIMENSIONS
NOTES:
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
.0 s f in
M R
Q c
N .d g n
/1 /2
L
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IT
A T
IO
N N
O
F
IL
E N
A M
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D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
R K
D E
S C
R
IP
T
IO
N A
P P
R
D A
T E
C O
N T
R A
C T N
O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
J U
N E
R E
P A
IR
N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
STONE FILL
STRUCTURE
PILE
EXISTING
STRUCTURE WITHOUT PRIOR APPROVAL OF THE COR.
4. REPAIR SEGMENT LENGTH AND ROCK TONS SHALL NOT BE EXPANDED BEYOND THE TABULATED AMOUNT FOR ANY
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:
R E
V E
T M
E N
T /K
IC
K E
R N
O T
C H
T Y
P
IC
A L D
E T
A
IL
C4.04
TO CRP (+4)
REPAIR
IN NOTCH SECTIONS
SECTION TO CRP (-3)
LEAVE DEGRADED
MINIMUM NOTCH
ELEVATION CRP (-3)
CRP (-3)
NOTCH IF BELOW
PARTIALLY REPAIR
PLAN SHEETS.
INDICATED ON THE
NOTCHES ARE
REVETMENT/KICKER
SECTION WHERE
LEAVE DEGRADED
SECTION
DEGRADED
CRP (-5)
IS LOWER THAN
ELEVATION
TOP OF ROCK
FILL IN WHERE
& KICKERS TO CRP (+4)
REPAIR REVETMENTS
MOORING CLUMPS
RIVERWARD SIDE
STRUCTURE AZIMUTH LINE
LANDWARD SIDE
STONE FILL
REFERENCE PLANE (CRP)
CONSTRUCTION
MOORING CLUMPS
RIVERWARD SIDE
STRUCTURE AZIMUTH LINE
LANDWARD SIDE
STONE FILL
REFERENCE PLANE (CRP)
CONSTRUCTION
GROUND
EXISTING
GROUND
EXISTING
GROUND
EXISTING
GROUND
EXISTING
REPAIR HEIGHT
FOR AVERAGE
SEE C3 SHEETS
REPAIR TOP WIDTH
SEE C3 SHEETS FOR
CONSTRUCTION GUIDANCE.
35 31 20 PAR 2.1.1/2.3.1 FOR
REFER TO SPECIFICATION SECTION
PROVIDED IN TABLE & ON PLAN SHEETS.
4) GENERAL NOTCH LOCATIONS
ON THE C2 OR C3 SHEETS.
STRUCTURE RIVER MILE IS LISTED
3) APPROXIMATE
AND GENERAL REPAIR GUIDANCE.
"STRUCTURES" FOR DEFINITIONS
2) SEE SPECIFICATION 35 31 20
AVAILABLE ON THE C2 OR C3 SHEETS.
1) STRUCTURE REPAIR DIMENSIONS
NOTES:
NOTCH
REVETMENT
NOT TO SCALE
REVETMENT
EXISTING
REVETMENT/KICKER NOTCH TYPICAL - PLAN VIEW
PILING
CRP (-5)
ELEVATION
INVERT
NOTCH
SEE C3 SHEETS
NOTCH LENGTH
CRP (-3)
IN NOTCH IF ABOVE
REMOVAL REQUIRED
NO MATERIAL
NOT TO SCALE
SECTION 2
NOT TO SCALE
1SECTION
NOT TO SCALE
SECTION 3
.0 s f in
M R
Q c
N .d g n
/1 /2
L
IC
IT
A T
IO
N N
O
F
IL
E N
A M
E
D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
R K
D E
S C
R
IP
T
IO
N A
P P
R
D A
T E
C O
N T
R A
C T N
O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
J U
N E
R E
P A
IR
N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
SECTION
DEGRADED
L O
W E
R E
D D
IK
E /R
E V
E R
S E S
IL
L R
E P
A
IR
T Y
P
IC
A L D
E T
A
IL
C4.05
REPAIR HEIGHT
FOR AVERAGE
SEE C3 SHEETS
SILLS TO CRP (+4)
REPAIR REVERSE
NOT TO SCALE
HIGH BANK
EXISTING
REVERSE SILL REPAIR TYPICAL - PLAN VIEW
REVERSE SILLS.
SECTIONS ADJACENT TO THE
ELEVATION IN THE LOWERED DIKE
MAINTAIN ORIGINAL DESIGN
4) EFFORTS SHOULD BE MADE TO
ON THE C2 OR C3 SHEETS.
STRUCTURE RIVER MILE IS LISTED
3) APPROXIMATE
AND GENERAL REPAIR GUIDANCE.
"STRUCTURES" FOR DEFINITIONS
2) SEE SPECIFICATION 35 31 20
AVAILABLE ON THE C2 OR C3 SHEETS.
1) STRUCTURE REPAIR DIMENSIONS
NOTES:
VARIES 75' TYP.
+4'
H
IG
H B
A N
K
E X
IS
T
ROCK DIKE
OF DIKE
PORTION
BURIED
STONE FILL
EXISTING
STRUCTURE
EXISTING PILE
REPOSE
ANGLE OF
VARIES
CRP ELEV.
NOT TO SCALE
SECTION
DEFICIENCY LENGTH
SEE C3 SHEETS FOR
INVERT ELEVATION 5' BELOW CRP
PREVIOUSLY LOWERED DIKE SECTION
REVERSE SILL
100' TYP.
STRUCTURE WITHOUT PRIOR APPROVAL OF THE COR.
4. REPAIR SEGMENT LENGTH AND ROCK TONS SHALL NOT BE EXPANDED BEYOND THE TABULATED AMOUNT FOR ANY
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:
WIDTH
FOR REPAIR TOP
SEE C3 SHEETS
AZIMUTH LINE
STRUCTURE
NOT TO SCALE
2SECTION
PLANE (CRP)
REFERENCE
CONSTRUCTION
.0 s f in
M R
Q c
N .d g n
/1 /2
L
IC
IT
A T
IO
N N
O
F
IL
E N
A M
E
D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
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D E
S C
R
IP
T
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R
D A
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R A
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O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
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N E
R E
P A
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N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
(Elevations based on monthly average flows.)
MISSOURI RIVER RECENT DAILY FLOW (CFS)
MISSOURI RIVER WATER SURFACE ELEVATION AT 624.0
RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: DENE, OMA) http://waterdata.usgs.gov/nwis/rt
06601200 (DECATUR) AND 06610000 (OMAHA). THE WEBSITES ARE:
CORPS' RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE
OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM THE
1. INFROMATION FOR THE MISSOURI RIVER AT DECATUR AND OMAHA CAN BE
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
(http://www.nwd-mr.usace.army.mil/rcc/aop.html).
MARCH 15 SYSTEM STORAGE CHECK AS OUTLINED IN THE ANNUAL OPERATING PLAN, PLATE 3.
NAVIGATION SEASON FLOW SUPPORTS (FULL, MINIMUM, OR IN BETWEEN) WILL BE BASED ON THE
NORMALLY BEGINS AGAIN THE FOLLOWING SPRING IN LATE MARCH. THE DETERMINATION OF
RELEASES MAY BE AS LOW AS 9,000 CFS FOR AN EXTENDED PERIOD. NAVIGATION SUPPORT
6. ONCE THE FLOW SUPPORT SEASON ENDS, FLOWS WILL DROP OFF SIGNIFICANTLY AND GAVINS
ALTERED LEVELS FOR A SIGNIFICANT PERIOD.
INCLUDING THE UNCONTROLLED INFLOWS BELOW GAVINS POINT DAM. FLOWS CAN REMAIN AT
DOWNSTREAM FLOOD CONTROL OBJECTIVES DURING PERIODS WITH VARIABLE TRIBUTARY INFLOWS
RIVER FLOWS AT ANY TIME CAN BE SIGNIFICANTLY ALTERED TO MEET RESERVOIR POOL TARGETS OR
LESS THAN 25,000 CFS FOR PROLONGED DURATIONS IN THE PERIOD APRIL THROUGH OCTOBER.
AND DROUGHT CONSERVATION MEASURES. AS A RESULT, THE MISSOURI RIVER HAS FLOWED AT
WHEN COMMERCIAL BARGE TRAFFIC IS NOT PRESENT AS PART OF NORMAL RESERVOIR OPERATIONS
5. NAVIGATION SUPPORT FLOW RELEASES FROM GAVINS POINT DAM HAVE BECOME DISCRETIONARY
NAVIGATION FLOWS ELIMINATED IF NECESSARY.
1 DECEMBER AT THE MOUTH ALTHOUGH NAVIGATION SEASON LENGTH MAY BE SHORTENED OR
THE NAVIGATION SEASON. FLOW SUPPORT FOR THE TYPICAL NAVIGATION SEASON ENDS ON
SERVICE SUPPORT FLOW LEVEL OF 25,000 CFS FROM LATE MARCH TO LATE NOVEMBER DURING
RIVER DISCHARGES IN THE PROJECT VICINITY TYPICALLY ARE ABOVE THE MINIMUM NAVIGATION
AND OMAHA (25,000 CFS), NEBRASKA CITY (31,000 CFS) AND KANSAS CITY (35,000 CFS). MISSOURI
4. NAVIGATION TARGET LOCATIONS AND MINIMUM NAVIGATION SUPPORT FLOWS ARE: SIOUX CITY
FLOW LEVELS AND FAST STAGE RAISING CONDITIONS.
FLOODPLAIN. WET ANTECEDENT CONDITIONS IN 2019 MAY LEAD TO ABOVE NORMAL MISSOURI RIVER
3. RECENT HIGH FLOWS IN 2018 AND 2019 HAVE ALTERED THE MISSOURI RIVER CHANNEL AND
OF GAVINS POINT DAM, AND/OR HIGH TRIBUTARY INFLOW.
BE IMPACTED BY EXTREME HIGH OR LOW RIVER LEVELS DUE TO FLOODING, DROUGHT, OPERATION
DUE TO RIVER CONDITIONS. CONTRACTOR OPERATIONS DURING THE CONSTRUCTION PERIOD MAY
WITH THE COAST GUARD REGARDING POSSIBLE RIVER CLOSURES OR OPERATION RESTRICTIONS
http://www.nwd-mr.usace.army.mil/rcc OR CALL 402-996-3870. THE CONTRACTOR SHALL ALSO CONSULT
2. THE CONTRACTOR SHALL CONSULT THE CURRENT RIVER FLOW AND STAGE INFORMATION ON
GAGE STATIONS ARE AVAILABLE AT: https://water.weather.gov/ahps/region_forecast.php?rfc=mbrfc.
IN ADDITION TO RESERVOIR RELEASES. NATIONAL WEATHER SURFACE FORECASTS FOR
TRIBUTARY INFLOWS AND OTHER FACTORS WILL SIGNIFICANTLY AFFECT SITE FLOW CONDITIONS
ARE UPDATED ON A MONTHLY BASIS AND ARE AVAILABLE AT: http://www.nwd-mr.usace.army.mil/rcc/.
DURING THE PROJECT CONSTRUCTION PERIOD. FLOW FORECAST FOR RESERVOIR RELEASES
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:
R
IV
E R F
L O
W E
L E
V A
T
IO
N D
A T
A M
IS
S O
U R I
R
IV
E R R
E C
E N
T
C5.01
THIS DRAWING INCLUDED FOR INFORMATION ONLY
CONTRIBUTING ABOVE THIS LOCATION.
GAGES. APPROXIMATING FLOW BETWEEN THOSE GAGES WAS BASED ON THE AMOUNT OF DRAINAGE AREA
FLOW VALUES FOR THIS RIVER BEND WERE DERIVED FROM DATA PUBLISHED FOR THE DECATUR AND OMAHA
THE TWO TABLES ABOVE ARE "INFORMATION ONLY" FOR FLOWS AT THE ABOVE RIVER BEND.
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
.0 s f in
M R
Q c
N .d g n
/1 /2
L
IC
IT
A T
IO
N N
O
F
IL
E N
A M
E
D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
R K
D E
S C
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IP
T
IO
N A
P P
R
D A
T E
C O
N T
R A
C T N
O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
J U
N E
R E
P A
IR
N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
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
RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: OMA, NCNE) http://waterdata.usgs.gov/nwis/rt
06610000 (OMAHA) AND 06807000 (NEBRASKA CITY). THE WEBSITES ARE:
THE CORPS' RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE
CAN BE OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM
1. INFROMATION FOR THE MISSOURI RIVER AT OMAHA AND NEBRASKA CITY
GENERAL NOTES:
MISSOURI RIVER WATER SURFACE ELEVATION AT 595.0
C5.02
R
IV
E R F
L O
W E
L E
V A
T
IO
N D
A T
A M
IS
S O
U R I
R
IV
E R R
E C
E N
T
(http://www.nwd-mr.usace.army.mil/rcc/aop.html).
MARCH 15 SYSTEM STORAGE CHECK AS OUTLINED IN THE ANNUAL OPERATING PLAN, PLATE 3.
NAVIGATION SEASON FLOW SUPPORTS (FULL, MINIMUM, OR IN BETWEEN) WILL BE BASED ON THE
NORMALLY BEGINS AGAIN THE FOLLOWING SPRING IN LATE MARCH. THE DETERMINATION OF
RELEASES MAY BE AS LOW AS 9,000 CFS FOR AN EXTENDED PERIOD. NAVIGATION SUPPORT
6. ONCE THE FLOW SUPPORT SEASON ENDS, FLOWS WILL DROP OFF SIGNIFICANTLY AND GAVINS
ALTERED LEVELS FOR A SIGNIFICANT PERIOD.
INCLUDING THE UNCONTROLLED INFLOWS BELOW GAVINS POINT DAM. FLOWS CAN REMAIN AT
DOWNSTREAM FLOOD CONTROL OBJECTIVES DURING PERIODS WITH VARIABLE TRIBUTARY INFLOWS
RIVER FLOWS AT ANY TIME CAN BE SIGNIFICANTLY ALTERED TO MEET RESERVOIR POOL TARGETS OR
LESS THAN 25,000 CFS FOR PROLONGED DURATIONS IN THE PERIOD APRIL THROUGH OCTOBER.
AND DROUGHT CONSERVATION MEASURES. AS A RESULT, THE MISSOURI RIVER HAS FLOWED AT
WHEN COMMERCIAL BARGE TRAFFIC IS NOT PRESENT AS PART OF NORMAL RESERVOIR OPERATIONS
5. NAVIGATION SUPPORT FLOW RELEASES FROM GAVINS POINT DAM HAVE BECOME DISCRETIONARY
NAVIGATION FLOWS ELIMINATED IF NECESSARY.
1 DECEMBER AT THE MOUTH ALTHOUGH NAVIGATION SEASON LENGTH MAY BE SHORTENED OR
THE NAVIGATION SEASON. FLOW SUPPORT FOR THE TYPICAL NAVIGATION SEASON ENDS ON
SERVICE SUPPORT FLOW LEVEL OF 25,000 CFS FROM LATE MARCH TO LATE NOVEMBER DURING
RIVER DISCHARGES IN THE PROJECT VICINITY TYPICALLY ARE ABOVE THE MINIMUM NAVIGATION
AND OMAHA (25,000 CFS), NEBRASKA CITY (31,000 CFS) AND KANSAS CITY (35,000 CFS). MISSOURI
4. NAVIGATION TARGET LOCATIONS AND MINIMUM NAVIGATION SUPPORT FLOWS ARE: SIOUX CITY
FLOW LEVELS AND FAST STAGE RAISING CONDITIONS.
FLOODPLAIN. WET ANTECEDENT CONDITIONS IN 2019 MAY LEAD TO ABOVE NORMAL MISSOURI RIVER
3. RECENT HIGH FLOWS IN 2018 AND 2019 HAVE ALTERED THE MISSOURI RIVER CHANNEL AND
OF GAVINS POINT DAM, AND/OR HIGH TRIBUTARY INFLOW.
BE IMPACTED BY EXTREME HIGH OR LOW RIVER LEVELS DUE TO FLOODING, DROUGHT, OPERATION
DUE TO RIVER CONDITIONS. CONTRACTOR OPERATIONS DURING THE CONSTRUCTION PERIOD MAY
WITH THE COAST GUARD REGARDING POSSIBLE RIVER CLOSURES OR OPERATION RESTRICTIONS
http://www.nwd-mr.usace.army.mil/rcc OR CALL 402-996-3870. THE CONTRACTOR SHALL ALSO CONSULT
2. THE CONTRACTOR SHALL CONSULT THE CURRENT RIVER FLOW AND STAGE INFORMATION ON
GAGE STATIONS ARE AVAILABLE AT: https://water.weather.gov/ahps/region_forecast.php?rfc=mbrfc.
IN ADDITION TO RESERVOIR RELEASES. NATIONAL WEATHER SURFACE FORECASTS FOR
TRIBUTARY INFLOWS AND OTHER FACTORS WILL SIGNIFICANTLY AFFECT SITE FLOW CONDITIONS
ARE UPDATED ON A MONTHLY BASIS AND ARE AVAILABLE AT: http://www.nwd-mr.usace.army.mil/rcc/.
DURING THE PROJECT CONSTRUCTION PERIOD. FLOW FORECAST FOR RESERVOIR RELEASES
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:THIS DRAWING INCLUDED FOR INFORMATION ONLY
DRAINAGE AREA CONTRIBUTING ABOVE THIS LOCATION.
NEBRASKA CITY 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 OMAHA AND
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
.0 s f in
M R
Q c
N .d g n
/1 /2
L
IC
IT
A T
IO
N N
O
F
IL
E N
A M
E
D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
R K
D E
S C
R
IP
T
IO
N A
P P
R
D A
T E
C O
N T
R A
C T N
O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
J U
N E
R E
P A
IR
N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
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
RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: OMA, NCNE) http://waterdata.usgs.gov/nwis/rt
06610000 (OMAHA) AND 06807000 (NEBRASKA CITY). THE WEBSITES ARE:
THE CORPS' RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE
CAN BE OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM
1. INFROMATION FOR THE MISSOURI RIVER AT OMAHA AND NEBRASKA CITY
GENERAL NOTES:
MISSOURI RIVER WATER SURFACE ELEVATION AT 583.0
C5.03
R
IV
E R F
L O
W E
L E
V A
T
IO
N D
A T
A M
IS
S O
U R I
R
IV
E R R
E C
E N
T
(http://www.nwd-mr.usace.army.mil/rcc/aop.html).
MARCH 15 SYSTEM STORAGE CHECK AS OUTLINED IN THE ANNUAL OPERATING PLAN, PLATE 3.
NAVIGATION SEASON FLOW SUPPORTS (FULL, MINIMUM, OR IN BETWEEN) WILL BE BASED ON THE
NORMALLY BEGINS AGAIN THE FOLLOWING SPRING IN LATE MARCH. THE DETERMINATION OF
RELEASES MAY BE AS LOW AS 9,000 CFS FOR AN EXTENDED PERIOD. NAVIGATION SUPPORT
6. ONCE THE FLOW SUPPORT SEASON ENDS, FLOWS WILL DROP OFF SIGNIFICANTLY AND GAVINS
ALTERED LEVELS FOR A SIGNIFICANT PERIOD.
INCLUDING THE UNCONTROLLED INFLOWS BELOW GAVINS POINT DAM. FLOWS CAN REMAIN AT
DOWNSTREAM FLOOD CONTROL OBJECTIVES DURING PERIODS WITH VARIABLE TRIBUTARY INFLOWS
RIVER FLOWS AT ANY TIME CAN BE SIGNIFICANTLY ALTERED TO MEET RESERVOIR POOL TARGETS OR
LESS THAN 25,000 CFS FOR PROLONGED DURATIONS IN THE PERIOD APRIL THROUGH OCTOBER.
AND DROUGHT CONSERVATION MEASURES. AS A RESULT, THE MISSOURI RIVER HAS FLOWED AT
WHEN COMMERCIAL BARGE TRAFFIC IS NOT PRESENT AS PART OF NORMAL RESERVOIR OPERATIONS
5. NAVIGATION SUPPORT FLOW RELEASES FROM GAVINS POINT DAM HAVE BECOME DISCRETIONARY
NAVIGATION FLOWS ELIMINATED IF NECESSARY.
1 DECEMBER AT THE MOUTH ALTHOUGH NAVIGATION SEASON LENGTH MAY BE SHORTENED OR
THE NAVIGATION SEASON. FLOW SUPPORT FOR THE TYPICAL NAVIGATION SEASON ENDS ON
SERVICE SUPPORT FLOW LEVEL OF 25,000 CFS FROM LATE MARCH TO LATE NOVEMBER DURING
RIVER DISCHARGES IN THE PROJECT VICINITY TYPICALLY ARE ABOVE THE MINIMUM NAVIGATION
AND OMAHA (25,000 CFS), NEBRASKA CITY (31,000 CFS) AND KANSAS CITY (35,000 CFS). MISSOURI
4. NAVIGATION TARGET LOCATIONS AND MINIMUM NAVIGATION SUPPORT FLOWS ARE: SIOUX CITY
FLOW LEVELS AND FAST STAGE RAISING CONDITIONS.
FLOODPLAIN. WET ANTECEDENT CONDITIONS IN 2019 MAY LEAD TO ABOVE NORMAL MISSOURI RIVER
3. RECENT HIGH FLOWS IN 2018 AND 2019 HAVE ALTERED THE MISSOURI RIVER CHANNEL AND
OF GAVINS POINT DAM, AND/OR HIGH TRIBUTARY INFLOW.
BE IMPACTED BY EXTREME HIGH OR LOW RIVER LEVELS DUE TO FLOODING, DROUGHT, OPERATION
DUE TO RIVER CONDITIONS. CONTRACTOR OPERATIONS DURING THE CONSTRUCTION PERIOD MAY
WITH THE COAST GUARD REGARDING POSSIBLE RIVER CLOSURES OR OPERATION RESTRICTIONS
http://www.nwd-mr.usace.army.mil/rcc OR CALL 402-996-3870. THE CONTRACTOR SHALL ALSO CONSULT
2. THE CONTRACTOR SHALL CONSULT THE CURRENT RIVER FLOW AND STAGE INFORMATION ON
GAGE STATIONS ARE AVAILABLE AT: https://water.weather.gov/ahps/region_forecast.php?rfc=mbrfc.
IN ADDITION TO RESERVOIR RELEASES. NATIONAL WEATHER SURFACE FORECASTS FOR
TRIBUTARY INFLOWS AND OTHER FACTORS WILL SIGNIFICANTLY AFFECT SITE FLOW CONDITIONS
ARE UPDATED ON A MONTHLY BASIS AND ARE AVAILABLE AT: http://www.nwd-mr.usace.army.mil/rcc/.
DURING THE PROJECT CONSTRUCTION PERIOD. FLOW FORECAST FOR RESERVOIR RELEASES
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:THIS DRAWING INCLUDED FOR INFORMATION ONLY
DRAINAGE AREA CONTRIBUTING ABOVE THIS LOCATION.
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
.0 s f in
M R
Q c
N .d g n
/1 /2
L
IC
IT
A T
IO
N N
O
F
IL
E N
A M
E
D W
N B
Y
C K
D B
Y
D E
S
IG
N E
D B
Y
D E
S C
R
IP
T
IO
N
1 2 3
C
4 5
A
B
M A
R K
A P
P R
NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
R
S
IZ
E
S U
B M
IT
T E
D B
Y
P L
O T S
C A
L E
P L
O T D
A T
E
D A
T E
C O
R P
S O
F E
N G
IN
E E
R S
U S
A R
M Y E
N G
IN
E E
R D
IS
T R
IC
T
M A
R K
D E
S C
R
IP
T
IO
N A
P P
R
D A
T E
C O
N T
R A
C T N
O h tt p /w w w u s a c e .a rm y
.1
X
O M
A H
A
N E
B R
A S
K A
OMAHA DISTRICT
R .G .P
I.
D .C
D .B
S
IC
W F -1
X -F -0
X X
X
M R
P M
R -3
M
IS
S O
U R I
R
IV
E R
D
B P
B A
N K S
T A
B
IL
IZ
A T
IO
N N
A V
IG
A T
IO
N P
R O J E
C T
R
IV
E R M
IL
E
W F
B
J U
N E
R E
P A
IR
N
O R
T H S
T R
U C
T U
R E
S F
O R
S
E A
S
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
RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: OMA, NCNE) http://waterdata.usgs.gov/nwis/rt
06610000 (OMAHA) AND 06807000 (NEBRASKA CITY). THE WEBSITES ARE:
THE CORPS' RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE
CAN BE OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM
1. INFROMATION FOR THE MISSOURI RIVER AT OMAHA AND NEBRASKA CITY
GENERAL NOTES:
MISSOURI RIVER WATER SURFACE ELEVATION AT 572.8
C5.04
R
IV
E R F
L O
W E
L E
V A
T
IO
N D
A T
A M
IS
S O
U R I
R
IV
E R R
E C
E N
T
(http://www.nwd-mr.usace.army.mil/rcc/aop.html).
MARCH 15 SYSTEM STORAGE CHECK AS OUTLINED IN THE ANNUAL OPERATING PLAN, PLATE 3.
NAVIGATION SEASON FLOW SUPPORTS (FULL, MINIMUM, OR IN BETWEEN) WILL BE BASED ON THE
NORMALLY BEGINS AGAIN THE FOLLOWING SPRING IN LATE MARCH. THE DETERMINATION OF
RELEASES MAY BE AS LOW AS 9,000 CFS FOR AN EXTENDED PERIOD. NAVIGATION SUPPORT
6. ONCE THE FLOW SUPPORT SEASON ENDS, FLOWS WILL DROP OFF SIGNIFICANTLY AND GAVINS
ALTERED LEVELS FOR A SIGNIFICANT PERIOD.
INCLUDING THE UNCONTROLLED INFLOWS BELOW GAVINS POINT DAM. FLOWS CAN REMAIN AT
DOWNSTREAM FLOOD CONTROL OBJECTIVES DURING PERIODS WITH VARIABLE TRIBUTARY INFLOWS
RIVER FLOWS AT ANY TIME CAN BE SIGNIFICANTLY ALTERED TO MEET RESERVOIR POOL TARGETS OR
LESS THAN 25,000 CFS FOR PROLONGED DURATIONS IN THE PERIOD APRIL THROUGH OCTOBER.
AND DROUGHT CONSERVATION MEASURES. AS A RESULT, THE MISSOURI RIVER HAS FLOWED AT
WHEN COMMERCIAL BARGE TRAFFIC IS NOT PRESENT AS PART OF NORMAL RESERVOIR OPERATIONS
5. NAVIGATION SUPPORT FLOW RELEASES FROM GAVINS POINT DAM HAVE BECOME DISCRETIONARY
NAVIGATION FLOWS ELIMINATED IF NECESSARY.
1 DECEMBER AT THE MOUTH ALTHOUGH NAVIGATION SEASON LENGTH MAY BE SHORTENED OR
THE NAVIGATION SEASON. FLOW SUPPORT FOR THE TYPICAL NAVIGATION SEASON ENDS ON
SERVICE SUPPORT FLOW LEVEL OF 25,000 CFS FROM LATE MARCH TO LATE NOVEMBER DURING
RIVER DISCHARGES IN THE PROJECT VICINITY TYPICALLY ARE ABOVE THE MINIMUM NAVIGATION
AND OMAHA (25,000 CFS), NEBRASKA CITY (31,000 CFS) AND KANSAS CITY (35,000 CFS). MISSOURI
4. NAVIGATION TARGET LOCATIONS AND MINIMUM NAVIGATION SUPPORT FLOWS ARE: SIOUX CITY
FLOW LEVELS AND FAST STAGE RAISING CONDITIONS.
FLOODPLAIN. WET ANTECEDENT CONDITIONS IN 2019 MAY LEAD TO ABOVE NORMAL MISSOURI RIVER
3. RECENT HIGH FLOWS IN 2018 AND 2019 HAVE ALTERED THE MISSOURI RIVER CHANNEL AND
OF GAVINS POINT DAM, AND/OR HIGH TRIBUTARY INFLOW.
BE IMPACTED BY EXTREME HIGH OR LOW RIVER LEVELS DUE TO FLOODING, DROUGHT, OPERATION
DUE TO RIVER CONDITIONS. CONTRACTOR OPERATIONS DURING THE CONSTRUCTION PERIOD MAY
WITH THE COAST GUARD REGARDING POSSIBLE RIVER CLOSURES OR OPERATION RESTRICTIONS
http://www.nwd-mr.usace.army.mil/rcc OR CALL 402-996-3870. THE CONTRACTOR SHALL ALSO CONSULT
2. THE CONTRACTOR SHALL CONSULT THE CURRENT RIVER FLOW AND STAGE INFORMATION ON
GAGE STATIONS ARE AVAILABLE AT: https://water.weather.gov/ahps/region_forecast.php?rfc=mbrfc.
IN ADDITION TO RESERVOIR RELEASES. NATIONAL WEATHER SURFACE FORECASTS FOR
TRIBUTARY INFLOWS AND OTHER FACTORS WILL SIGNIFICANTLY AFFECT SITE FLOW CONDITIONS
ARE UPDATED ON A MONTHLY BASIS AND ARE AVAILABLE AT: http://www.nwd-mr.usace.army.mil/rcc/.
DURING THE PROJECT CONSTRUCTION PERIOD. FLOW FORECAST FOR RESERVOIR RELEASES
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:THIS DRAWING INCLUDED FOR INFORMATION ONLY
DRAINAGE AREA CONTRIBUTING ABOVE THIS LOCATION.
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
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THE PREVIOUS 22 YEAR PERIOD.
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 NEBRASKA CITY (RM 562.6)
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RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: OMA, NCNE) http://waterdata.usgs.gov/nwis/rt
06610000 (OMAHA) AND 06807000 (NEBRASKA CITY). THE WEBSITES ARE:
THE CORPS' RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE
CAN BE OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM
1. INFORMATION FOR THE MISSOURI RIVER AT NEBRASKA CITY AND OMAHA
GENERAL NOTES:
(http://www.nwd-mr.usace.army.mil/rcc/aop.html).
MARCH 15 SYSTEM STORAGE CHECK AS OUTLINED IN THE ANNUAL OPERATING PLAN, PLATE 3.
NAVIGATION SEASON FLOW SUPPORTS (FULL, MINIMUM, OR IN BETWEEN) WILL BE BASED ON THE
NORMALLY BEGINS AGAIN THE FOLLOWING SPRING IN LATE MARCH. THE DETERMINATION OF
RELEASES MAY BE AS LOW AS 9,000 CFS FOR AN EXTENDED PERIOD. NAVIGATION SUPPORT
6. ONCE THE FLOW SUPPORT SEASON ENDS, FLOWS WILL DROP OFF SIGNIFICANTLY AND GAVINS
ALTERED LEVELS FOR A SIGNIFICANT PERIOD.
INCLUDING THE UNCONTROLLED INFLOWS BELOW GAVINS POINT DAM. FLOWS CAN REMAIN AT
DOWNSTREAM FLOOD CONTROL OBJECTIVES DURING PERIODS WITH VARIABLE TRIBUTARY INFLOWS
RIVER FLOWS AT ANY TIME CAN BE SIGNIFICANTLY ALTERED TO MEET RESERVOIR POOL TARGETS OR
LESS THAN 25,000 CFS FOR PROLONGED DURATIONS IN THE PERIOD APRIL THROUGH OCTOBER.
AND DROUGHT CONSERVATION MEASURES. AS A RESULT, THE MISSOURI RIVER HAS FLOWED AT
WHEN COMMERCIAL BARGE TRAFFIC IS NOT PRESENT AS PART OF NORMAL RESERVOIR OPERATIONS
5. NAVIGATION SUPPORT FLOW RELEASES FROM GAVINS POINT DAM HAVE BECOME DISCRETIONARY
NAVIGATION FLOWS ELIMINATED IF NECESSARY.
1 DECEMBER AT THE MOUTH ALTHOUGH NAVIGATION SEASON LENGTH MAY BE SHORTENED OR
THE NAVIGATION SEASON. FLOW SUPPORT FOR THE TYPICAL NAVIGATION SEASON ENDS ON
SERVICE SUPPORT FLOW LEVEL OF 25,000 CFS FROM LATE MARCH TO LATE NOVEMBER DURING
RIVER DISCHARGES IN THE PROJECT VICINITY TYPICALLY ARE ABOVE THE MINIMUM NAVIGATION
AND OMAHA (25,000 CFS), NEBRASKA CITY (31,000 CFS) AND KANSAS CITY (35,000 CFS). MISSOURI
4. NAVIGATION TARGET LOCATIONS AND MINIMUM NAVIGATION SUPPORT FLOWS ARE: SIOUX CITY
FLOW LEVELS AND FAST STAGE RAISING CONDITIONS.
FLOODPLAIN. WET ANTECEDENT CONDITIONS IN 2019 MAY LEAD TO ABOVE NORMAL MISSOURI RIVER
3. RECENT HIGH FLOWS IN 2018 AND 2019 HAVE ALTERED THE MISSOURI RIVER CHANNEL AND
OF GAVINS POINT DAM, AND/OR HIGH TRIBUTARY INFLOW.
BE IMPACTED BY EXTREME HIGH OR LOW RIVER LEVELS DUE TO FLOODING, DROUGHT, OPERATION
DUE TO RIVER CONDITIONS. CONTRACTOR OPERATIONS DURING THE CONSTRUCTION PERIOD MAY
WITH THE COAST GUARD REGARDING POSSIBLE RIVER CLOSURES OR OPERATION RESTRICTIONS
http://www.nwd-mr.usace.army.mil/rcc OR CALL 402-996-3870. THE CONTRACTOR SHALL ALSO CONSULT
2. THE CONTRACTOR SHALL CONSULT THE CURRENT RIVER FLOW AND STAGE INFORMATION ON
GAGE STATIONS ARE AVAILABLE AT: https://water.weather.gov/ahps/region_forecast.php?rfc=mbrfc.
IN ADDITION TO RESERVOIR RELEASES. NATIONAL WEATHER SURFACE FORECASTS FOR
TRIBUTARY INFLOWS AND OTHER FACTORS WILL SIGNIFICANTLY AFFECT SITE FLOW CONDITIONS
ARE UPDATED ON A MONTHLY BASIS AND ARE AVAILABLE AT: http://www.nwd-mr.usace.army.mil/rcc/.
DURING THE PROJECT CONSTRUCTION PERIOD. FLOW FORECAST FOR RESERVOIR RELEASES
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:THIS DRAWING INCLUDED FOR INFORMATION ONLY
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%…
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