23-01-30-04 - Plans.pdf
PDF 20 MB Posted
- Solicitation number
- 23-01-30-04
- Issued by
- Des Moines County, Iowa
About this file
This file contains construction plans for the Nepple Wildlife Management Area (WMA) Wetland Restoration project in Dickinson County, Iowa, prepared by the Iowa Department of Natural Resources. The project is designed to create a wetland pool area through embankment and dike construction, excavation of spillway and borrow areas, tile investigation and repair, and installation of a water control structure with associated piping. Bids for this project must be submitted electronically by July 23, 2026, at 3:00 PM. The plans document serves as the technical specification reference for bidders responding to this opportunity and should be reviewed in conjunction with the bid package and General Information and Instructions to Bidders.
The plans file provides the detailed engineering drawings and specifications necessary for contractors to accurately estimate costs and develop construction methodologies for the wetland restoration work. Prospective bidders are required to review both the plans and the complete bid package prior to submission. No pricing information, set-asides, site visit requirements, or pre-bid conferences are specified within the plans document itself, as these details are contained in the accompanying bid package and instructions to bidders materials.
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| File | Type | Posted |
|---|---|---|
| 23-01-30-04 - Bid Package.pdf |
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Text version
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PROJECT DESCRIPTION
SHEET INDEX
IOWA DEPARTMENT OF NATURAL RESOURCES
CONSTRUCTION DOCUMENTS
FOR
NEPPLE WMA WETLAND RESTORATION
DICKINSON COUNTY, IOWA
GREAT LAKES WILDLIFE UNIT
PROJECT #23-01-30-04
DIRECTORY
CONSTRUCTION INSPECTOR
IOWA DEPARTMENT OF NATURAL RESOURCES
3120330TH AVE
RUTHVEN, IA 51358
TJ HERRICK
515-250-3715 tj.herrick@dnr.iowa.gov
A.01 A.02 B.01 B.02 C.01 D.01 D.02
COVER SHEET
LOCATION DETAIL
PLAN & PROFILE
DETAILS
NOTES
OVERALL PLAN MAP
GRADING PLAN
PROJECT MANAGER
IOWA DEPARTMENT OF NATURAL RESOURCES
951 STARVIEW DR.
HINTON, IA 51024
JEFF FELTS, P.E.
515-250-3712 jeff.felts@dnr.iowa.gov
AUTHORIZATION TO BID
ENGINEERING BUREAU CHIEF DATE
AUTHORIZATION - WILDLIFE DATE
WMA LOCATION MAP
2/6/26
AutoCAD SHX Text THIS PROJECT INCLUDES CONSTRUCTING AN EMBANKMENT WITH AN EMERGENCY SPILLWAY AND WATER CONTROL STRUCUTRE CONSTRUCTION PER IOWA STATEWIDE URBAN DESIGN AND SPECIFICATIONS (SUDAS).
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DICKINSON COUNTY
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NEPPLE WMA
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CAYLER PRAIRIE WMA LOCATION DETAIL MAP
NORTH
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180TH AVE
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CAYLER PRAIRIE WMA NEPPLE TRACT
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WCS PROFILE
12'
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24" SECONDARY INTAKE
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DIKE TOP ELEV = 1422.0'
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FIREPROOF COVER TOP ELEV. 1422.0' SEE DETAIL 1/B.02
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POOL ELEV. 1420.5'
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18" CMP 18GA WITH COUPLERS RATGUARD INSTALLED
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24" CMP
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24" CMP 18GA 24" HEAVY DUTY BAR GUARD INSTALLED
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AGRIDRAIN WCS TOP ELEV. 1421.5' BOTTOM ELEV. 1413.5'
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24" TEE
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DIKE TOP ELEV. 1422.0'
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24" CMP 18GA
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FL ELEV. 1413.5'
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6" BEDDIING STONE
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FL ELEV. 1413.0'
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FL ELEV. 1413.5'
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24' INTAKE ELEV. 1420.5'
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ELEV. 1413.5'
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24" HEAVY DUTY BAR GUARD INSTALLED
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1' DEPTH EROSION STONE
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"BLISTER" BERM
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4'X4' ANTI-SEEP COLLAR'
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4'X4' ANTI-SEEP COLLAR
4'X4' ANTI-SEEP COLLAR'
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FIREPROOF COVER DETAIL
INLET WITH EROSION STONE
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OUTLET WITH EROSION STONE
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2" BEDDING STONE
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4' CORRUGATED METAL PIPE 48" DIA. - 16 GA W/ 3"X1" CORR.
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AGRIDRAIN WATER CONTROL STRUCTURE CENTERED IN CMP
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BOTTOM OF EROSION STONE 1412.5'
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TOP OF EROSION STONE 1420.5'
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31" AGRIDRAIN WCS CENTERED IN FIREPROOF COVER
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FIREPROOF COVER
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INLET ELEV. 1413.5'
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OUTLET ELEV. 1413.0'
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BOTTOM OF EROSION STONE MATCH EXISTING SURFACE
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TOP OF EROSION STONE 1415.0'
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AGRIDRAIN FIRE PROOF COVER (OR EQUAL)
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AutoCAD SHX Text A. The contractor shall notify the following two weeks prior to construction: The contractor shall notify the following two weeks prior to construction: 1. District Inspector: JEFF FELTS, P.E. 515-250-3712 B. The contractor shall verify actual locations and elevations with the D.N.R Inspector. The contractor shall verify actual locations and elevations with the D.N.R Inspector. C. All work shall conform to and be performed in accordance with all applicable codes and ordinances. All work shall conform to and be performed in accordance with all applicable codes and ordinances. D. The contractor shall visit the site and inspect the project area and thoroughly familiarize themselves with The contractor shall visit the site and inspect the project area and thoroughly familiarize themselves with the actual job conditions prior to the start of work. Failure to visit the project site shall not relieve the actual job conditions prior to the start of work. Failure to visit the project site shall not relieve the contractor from performing the work in accordance to the plans, specifications, special provisions and the contractor from performing the work in accordance to the plans, specifications, special provisions and contract. contract. E. The contractor shall verify, at the site, all dimensions and conditions shown on the plans and shall notify The contractor shall verify, at the site, all dimensions and conditions shown on the plans and shall notify the D.N.R Inspector of any discrepancies, omissions and/or conflicts prior to proceeding with the work. the D.N.R Inspector of any discrepancies, omissions and/or conflicts prior to proceeding with the work. F. The contractor is responsible for disposal for excess material (excavated material The contractor is responsible for disposal for excess material (excavated material or broken concrete) which is not desirable to be incorporated into the work involved on this project. No or broken concrete) which is not desirable to be incorporated into the work involved on this project. No payment for overhaul will be allowed for material hauled to these sites. No material shall be placed, unless payment for overhaul will be allowed for material hauled to these sites. No material shall be placed, unless specifically stated in the plans or approved by the D.N.R Inspector. G. The contractor shall not disturb desirable grass areas and desirable trees outside construction limits. The The contractor shall not disturb desirable grass areas and desirable trees outside construction limits. The contractor will not be permitted to park or service vehicles and equipment or use these areas for storage of contractor will not be permitted to park or service vehicles and equipment or use these areas for storage of materials. Storage, parking and service areas will be subject to the approval of the D.N.R Inspector. materials. Storage, parking and service areas will be subject to the approval of the D.N.R Inspector. H. The contractor is expected to have materials, equipment and labor available on a daily basis to install and The contractor is expected to have materials, equipment and labor available on a daily basis to install and maintain erosion control features on the project, if needed. maintain erosion control features on the project, if needed. I. The contractor shall be responsible for any damage to existing facilities resulting from their negligence, The contractor shall be responsible for any damage to existing facilities resulting from their negligence, or that of a subcontractor, and said repairs shall be approved by the owner. or that of a subcontractor, and said repairs shall be approved by the owner. J. All work shall be per Iowa Statewide Urban Design and Specifications (SUDAS). Manuals can be viewed online at All work shall be per Iowa Statewide Urban Design and Specifications (SUDAS). Manuals can be viewed online at www.iowasudas.org. K. Construciton Survey to be completed by Iowa D.N.R. with 2-week minimum notice. Construciton Survey to be completed by Iowa D.N.R. with 2-week minimum notice.
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GENERAL NOTES:
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DESCRIPTION
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ITEM
ESTIMATED PROJECT QUANTITIES
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FEBRUARY 22, 2024
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OVERALL PROJECT MAPSCALE: 1" = 150'
0' 150' 300' NORTH
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AutoCAD SHX Text Dike 4:1 Slope
AutoCAD SHX Text Wetland Storage Limit 5.25 Ac 12.4 AcFt
AutoCAD SHX Text FSL Wetland 2.42 Ac 3.24 AcFt
AutoCAD SHX Text Borrow Area Area to be seeded by DNR to hydric-natives
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180TH AVE
AutoCAD SHX Text Spillway Top ELEV 1421.0' Bottom ELEV 1414.0''
Driveway and Access
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NOT TO SCALE
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SPILLWAY & SWALE PLAN
TYP. DIKE GRADING PLAN
TYP. SPILLWAY GRADING PLAN
DIKE PLAN
WCS PLAN
12'
25'
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28'
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12'
2' 2'
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6" BEDDING STONE
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1' EROSION STONE
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EXISTING GRADE
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TOP OF FINISHED SPILLWAY 1421.0'
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EXISTING GRADE
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6" STRIPPING
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1' DEPTH EROSION STONE
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FIREPROOF COVER
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24" HEAVY DUTY BAR GUARD
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AGRIDRAIN WCS
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TOP OF DIKE 1422.0'
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18" CMP
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24" CMP
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1' DEPTH EROSION STONE
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1' DEPTH EROSION STONE OVER 6" BEDDING STONE FOR THE ENTIRE LENGTH OF THE SWALE
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TOP OF DIKE 1422.0'
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ELEV 1419.5'
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TOP SPILLWAY ELEV. 1421.0'
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BOTTOM SPILLWAY ELEV. 1414.0'
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"BLISTER BERM"
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RATGUARD ON OUTLET
Notes: 1. TYP. spillway bottom width 12' TYP. spillway bottom width 12' 2. TYP. swale bottom width 8' TYP. swale bottom width 8' 3. Centerline of spillway 0.5' lower than sides to form a "swale" channel water Centerline of spillway 0.5' lower than sides to form a "swale" channel water 4. Slope from edges of spilway 3 to 1 to match EG Slope from edges of spilway 3 to 1 to match EG 5. Erosion ston shall extend 2' up the slopes of spillway and swale Erosion ston shall extend 2' up the slopes of spillway and swale
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