Drawings - MIDDLE DECATUR.pdf
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- Attached to
- Missouri River Recovery Program (MRRP) - Middle Decatur Top Width Widening (TWW) Revetment Modification
- Solicitation number
- W9128F21B0011
About this file
This solicitation package includes drawings and specifications for a Missouri River revetment modification project. The US Army Corps of Engineers seeks to repair revetment structures at River Mile 688.5 through an invitation for bid. Small businesses are eligible to bid on the project, valued between $1 million and $2.5 million. The scope of work involves providing all labor, equipment, and materials to repair identified revetment using riprap stone fill per the drawings. Bids are due by June 22, 2021, with award anticipated thereafter. The documents provide river flow data, construction notes, cross sections, profiles and other technical details to inform bid preparation for modifying structures along the Middle Decatur bend to support fish and wildlife habitat as part of the Missouri River Recovery Program.
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Text version
US Army Corps of Engineers
Omaha District
MISSOURI RIVER RECOVERY
MISSOURI RIVER, BURT COUNTY, NE
TOP WIDTH WIDENING PROJECT
MIDDLE DECATUR BEND - PHASE 4
FISH & WILDLIFE MITIGATION
CONTRACT NO. W9128F-21-F-0xxx
SOLICITATION NO. W9128F-21-B-0011
MAY 2021
ADVERTISEMENT SET
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VICINITY MAPCOUNTY
BURT
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THURSTON
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MONONA
INDEX
THE CONTRACTOR.
ACCESS (I.E. ACCESS FROM THE LAND) IS THE RESPONSIBILITY OF
CONTRACTOR'S ACCESS ROUTE IS FROM THE RIVER ONLY. ANY OTHER
615.8
580.3
PILE DIKE
PILE REVETMENT
PILE REVETMENT, STONE FILL
ASPHALT REVETMENT
DESIGNED STABILIZED CHANNEL LINE
BLUFF LINE
1960 CHANNEL MILAGE
BEND CHANGE
STRUCTURE NUMBERS ARE BASED ON 1890 MILAGE
REPRESENTS A SYNTHESIZED WATER SURFACE PROFILE
CRP THIS IS THE CONTRUCTION REFERENCE PLANE WHICH
OF A STEADY DISCHARGE THAT IS EQUALED OR EXCEEDED
STONE FILL DIKE OR REVETMENT
REINFORCED STD. REVET. OR ACCRETION PAVING
TOE TRENCH OR STANDARD REVETMENT OR
2. UPON COMPLETION OF PROJECT, THE CONTRACTOR SHALL REPAIR ALL EXISTING ACCESS ROADS TO PREEXISTING CONDITIONS.
1. CONTRACTING OFFICER REPRESENTATIVE MUST APPROVE THE LOCATION OF ANY STAGING AREAS PRIOR TO ARRIVAL ON SITE.
NOTES:
PROJECT LOCATION
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PROJECT LOCATION
MISSOURI RIVER RECENT RIVER FLOW & ELEV DATA (BASIC & OPTION) C7.01MRR5C701.DGN
TYPICAL DETAILS (BASIC & OPTION) C6.01MRR5C601.DGN
CROSS SECTIONS (OPTION)C5.03MRR5C503.DGN
CROSS SECTIONS (BASIC & OPTION)C5.02MRR5C502.DGN
CROSS SECTIONS (BASIC) C5.01MRR5C501.DGN
CENTERLINE PROFILE (BASIC & OPTION)C4.01MRR5C401.DGN
SITE LAYOUT PLAN WITH CONTOURS (BASIC & OPTION) C3.02MRR5C302.DGN
SITE LAYOUT PLAN (BASIC & OPTION) C3.01MRR5C301.DGN
SHEET LAYOUT PLAN (BASIC & OPTION) C2.02MRR5C202.DGN
GENERAL PLAN VIEW AND RIGHT-OF-WAY MAP (BASIC & OPTION) C2.01MRR5C201.DGN
LOCATION MAP, VICINITY MAP & INDEX (BASIC & OPTION)C1.01MRR5C101.DGN
COVER -MRR5B101.DGN
DESCRIPTIONFILENAME SHEET NO.
75% OF THE TIME DURING THE NAVIGATION SEASON
(APRIL - NOVEMBER).
NOT TO SCALE
LEGEND
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ON THE RIVER CHANNEL WITH STONE PLACEMENT.
UPWARD (SEE SECTION 0+50, SHEET C5.01). THE CONTRACTOR WILL NOT ENCROACH
2. THE PROJECT INTENT IS TO EXTEND THE EXISTING REVETMENT 742.96 RIVER SIDE SLOPE
LOCATE REVETMENT PRIOR TO ROCK PLACEMENT.
PLANS IS APPROXIMATE. THE CONTRACTOR SHALL CONDUCT FIELD SURVEYS TO
1. THE LOCATION OF THE EXISTING REVETMENT 742.96 CENTERLINE AS SHOWN ON THE
NOTES:
REVETMENT STRUCTURE 742.96
BASIC - 78 LF OF RIPRAP
REVETMENT STRUCTURE 742.96
BASIC - 342 LF OF RIPRAP
REVETMENT STRUCTURE 742.96
OPTION - 305 LF OF RIPRAP
FINISHED GRADE
EXISTING GRADE
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STRUCTURE
REVETMENT
THE RIPRAP
STATION'S FOR
CROSS SECTION
ON THE RIVER CHANNEL WITH STONE PLACEMENT.
UPWARD (SEE SECTION 0+50, SHEET C5.01). THE CONTRACTOR WILL NOT ENCROACH
2. THE PROJECT INTENT IS TO EXTEND THE EXISTING REVETMENT 742.96 RIVER SIDE SLOPE
LOCATE REVETMENT PRIOR TO ROCK PLACEMENT.
PLANS IS APPROXIMATE. THE CONTRACTOR SHALL CONDUCT FIELD SURVEYS TO
1. THE LOCATION OF THE EXISTING REVETMENT 742.96 CENTERLINE AS SHOWN ON THE
NOTES:
CROSS SECTIONS OF WEST ROCK STRUCTURE (BASIC)
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3+50
ON THE RIVER CHANNEL WITH STONE PLACEMENT.
CONTRACTOR WILL NOT ENCROACH
UPWARD (SEE SECTION 0+50, SHEET C5.01). THE
EXISTING REVETMENT 742.96 RIVER SIDE SLOPE
2. THE PROJECT INTENT IS TO EXTEND THE
REVETMENT PRIOR TO ROCK PLACEMENT.
CONDUCT FIELD SURVEYS TO LOCATE
IS APPROXIMATE. THE CONTRACTOR SHALL
742.96 CENTERLINE AS SHOWN ON THE PLANS
1. THE LOCATION OF THE EXISTING REVETMENT
NOTES:
CROSS SECTIONS OF MIDDLE ROCK STUCTURE (BASIC AND OPTION)
BASIC
BASIC
BASIC
C5.03
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US ARMY CORPS
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SCALE . INCH FEET=1 5
5' 5'
050' 50'
50SCALE . INCH FEET=1
SCALE:
HORIZ. 1 INCH = 50 FEET
VERT. 1 INCH = 5 FEET
STRUCTURE
REVETMENT
THE RIPRAP
STATION'S FOR
CROSS SECTION
5+50
ON THE RIVER CHANNEL WITH STONE PLACEMENT.
UPWARD (SEE SECTION 0+50, SHEET C5.01). THE CONTRACTOR WILL NOT ENCROACH
2. THE PROJECT INTENT IS TO EXTEND THE EXISTING REVETMENT 742.96 RIVER SIDE SLOPE
LOCATE REVETMENT PRIOR TO ROCK PLACEMENT.
PLANS IS APPROXIMATE. THE CONTRACTOR SHALL CONDUCT FIELD SURVEYS TO
1. THE LOCATION OF THE EXISTING REVETMENT 742.96 CENTERLINE AS SHOWN ON THE
NOTES:CROSS SECTIONS OF MIDDLE ROCK STUCTURE (OPTION)
C6.01
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A P
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NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
T E
F
IL
E N
U M
B E
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S
IZ
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S U
B M
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CONSTRUCT TO A CROWN
ELEVATION AS SPECIFIED
1 ON 1 1/4
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1 ON 1 1/4
1 ON 1 1/2
WIDTH OF 10 FEET AND
EXISTING GROUND LINE
NOT TO SCALE
RIP RAP REVETMENT STRUCTURE TYPICAL DETAIL
AND CROSS SECTIONS
ON THE SITE PLANS, PROFILES
C7.01
(M
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NUMBER
IDENTIFICATION
SHEET
OF ENGINEERS
US ARMY CORPS
D A
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B E
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S
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FOR MINIMUM FLOWS LIMITS ON OVERDEPTH DREDGING REFER TO SPECIFICATIONS.
THE TWO TABLES ABOVE ARE "INFORMATION ONLY" FOR FLOWS AT THE ABOVE RIVER BEND.
CONTRIBUTING ABOVE THIS LOCATION.
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 DECATUR AND OMAHA.
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
DEC
NOV
OCT
SEP
AUG
JUL
JUN
MAY
APR
MAR
FEB
JAN
25% EXCEED EXCEED EXCEED50% 75%
(http://www.nwd-mr.usace.army.mil/rcc/aop.html).
March 15 System storage check as outlined in the Annual Operating Plan, Plate 3.
season flow supports, either full or minimum or somewhere in between, will be based on the normally begins again the following spring in late March. The determination of navigation and Gavins releases may be as low as 9,000 cfs for an extended period. Navigation support to a more normal condition. Once the navigation season ends, flows will drop off significantly
Flows can remain at these altered levels for a significant period until the situation returns flood control objectives should tributary flows increase significantly below Gavins Point Dam.
at any time be significantly altered to meet system flood pool evacuation needs or downstream through October. It is also important to understand that in this reach of the river flows can at less than 25,000 cfs for prolonged durations over the last few years in the period April conservation measures. It is apparent that the river between Sioux City and Omaha has flowed commercial barge traffic is not present as part of normal reservoir operations and drought
4. Navigation support flow releases from Gavins Point Dam have become discretionary when assumed the same.
Omaha and Sioux City. Decatur is not a target location for navigation support flows but is eliminated if necessary. The minimum service navigation support flow is 25,000 cfs at both
1 December at the mouth although navigation season length may be shortened or navigation flows
November during the navigation season. Flow support for the typical navigation season ends on discharges in the project vicinity typically are above 25,000 cfs from late March to late
(25,000 cfs), Nebraska City (31,000 cfs) and Kansas City (35,000 cfs). Missouri River
3. Navigation target locations and minimum navigation support flows are: Sioux City and Omaha tributary inflow.
high or low river levels due to flooding, drought, operation of Gavins Point Dam, and/or high conditions. Contractor operations during the construction period may be impacted by extreme with the Coast Guard regarding possible river closures or operation restrictions due to river 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 will significantly affect site flow conditions in addition to reservoir releases.
on our website on http://www.nwd-mr.usace.army.mil/rcc/. Tributary inflows and other factors period. Flow forecast for reservoir releases are updated on a monthly basis and are available experiences wide flow level variations that should be expected during the project construction
1. All Missouri River data is provided for information only. The Missouri River consistently
MISSOURI RIVER SEASONAL FLOW LEVEL NOTES:
(Elevations based on monthly average flows.)
MISSOURI RIVER RECENT DAILY FLOW (CFS)
THIS DRAWING INCLUDED FOR INFORMATION ONLY
MISSOURI RIVER WATER SURFACE ELEVATION AT MIDDLE DECATUR
RCC phone number: (402) 996-3870 http://www.nwd-mr.usace.army.mil/rcc (DCP IDS: DENE, OMA) http://waterdata.usgs.gov/nwis/rt
(DECATUR) AND 06610000 (OMAHA). THE WEBSITES ARE:
RESERVOIR CONTROL CENTER (RCC). THE GAGE NUMBERS ARE 06601200
OBTAINED FROM THE US GEOLOGICAL SURVEY AS WELL AS FROM THE CORPS'
1. INFORMATION FOR THE MISSOURI RIVER AT DECATUR AND OMAHA CAN BE
GENERAL NOTE:
File details come from the government source that posted it. Updated .