Plans, Project #24-02-95-01, Langesen WPA 2- NAWCA, Clear Lake WU, Winnebago Co.pdf
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- Solicitation number
- 24-02-95-01
- Issued by
- Wapello County, Iowa
About this file
This is a set of construction documents from the Iowa Department of Natural Resources (DNR) Engineering Services for the Langesen WPA 2 NAWCA project located in Winnebago County, Iowa (Project #24-02-95-01). The project involves construction of four dikes, three ditch plugs, and a water control structure, with associated earthwork and site improvements. The estimated quantities include 500 CY of earthfill, one water control structure, 25 LF of 18" CMP, site prep and mowing, 2 tons of field stone, 1.5 tons of macadam stone, filter sock, and seeding/mulching. The project is dated August 30, 2024 and requires contractor notification to the District Inspector two weeks prior to construction.
The construction documents include detailed engineering drawings showing grading plans, cross-sections of ditch plugs and dikes, water control structure specifications, and stoplog details. The water control structure requires Class 'C' mix concrete (4,000 PSI), 6-inch thick walls, and steel reinforcement. The contractor is responsible for verifying site conditions, disposing of excess materials, and maintaining erosion control features. Access is from 510th St. or 200th Ave., and all work must conform to Iowa Statewide Urban Design and Specifications (SUDAS). The project appears to be a wetland restoration effort, with the structures designed to manage water levels in the area.
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| File | Type | Posted |
|---|---|---|
| 1297101-event.pdf | ||
| Contract, Project #24-02-95-01, Langesen WPA 2- NAWCA, Clear Lake WU, Winnebago Co.docx | DOCX document | |
| 1296471-event.pdf |
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PROJECT NUMBER:
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AUGUST 30, 2024
24-02-95-01
1 PRELIMINARY
SHEET INDEX
IOWA DEPARTMENT OF NATURAL RESOURCES
CONSTRUCTION DOCUMENTS
FOR
LANGESEN WPA 2
NAWCA
WINNEBAGO COUNTY, IOWA
PROJECT #24-02-95-01
DIRECTORY
CONSTRUCTION INSPECTOR
IOWA DEPARTMENT OF NATURAL RESOURCES
6200 PARK AVE.
DES MOINES, IA 50319
TJ HERRICK
515-250-3715 tj.herrick@dnr.iowa.gov
A.01 A.02 C.01 D.01 D.02 D.03 D.04
COVER SHEET
OVERALL PROJECT MAP
ESTIMATED QUANTITIES AND GENERAL NOTES
GRADING PLAN
PLAN AND PROFILE
WATER CONTROL STRUCTURE DETAIL
STOPLOG DETAIL
PROJECT MANAGER
IOWA DEPARTMENT OF NATURAL RESOURCES
6200 PARK AVE
DES MOINES, IA 50321
Heath Delzell
515-979-0104 heath.delzell@dnr.iowa.gov
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WINNEBAGO COUNTY
AutoCAD SHX Text Langesen WMA
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OVERALL PROJECT MAPSCALE: 1" = 400'
0' 400' 800' NORTH
1 PRELIMINARY
AutoCAD SHX Text Winnebago River
AutoCAD SHX Text Dike 1
AutoCAD SHX Text Dike 2
AutoCAD SHX Text Dike 3
AutoCAD SHX Text Dike 4
AutoCAD SHX Text Ditch Plug 1 WCS Location
AutoCAD SHX Text Ditch Plug 2
AutoCAD SHX Text Ditch Plug 3
AutoCAD SHX Text 510th St.
AutoCAD SHX Text Field Access
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Barrow Sites
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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: Heath Delzell, P.E. 515-979-0104 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
AUGUST 30, 2024
D.01
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ELEV. 1234.5
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ELEV. 1234.5
Winnebago River
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PLAN AND PROFILE
AutoCAD SHX Text Ditch Plug #1 Cross Section
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ELEV. 1234.5
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ELEV. 1230.0
AutoCAD SHX Text 12" Macadam Stone
AutoCAD SHX Text Ditch Plug #1 Profile Plan (Top View)
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FLOWLINE ELEV = 1230.0
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DITCH PLUG TOP ELEV = 1234.5
5 to 1 Slope
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24" DIA CMP 14 GAUGE CMP STUB 2'-6" LONG
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24" DIA CMP
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LOCKING SEE DETAIL
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CONCRETE TO BE POUR IN PLACE. SEE DETAIL FOR REINFORCEMENT
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STOP LOGS
AutoCAD SHX Text CHANNEL 3" X 3" X " 14" 2 REQ'D OR APPROVED EQUAL EXTEND 2" ABOVE STRUCTURE FOR LOCKING MECHANISM SEE SHEET 15
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14GAUGE CMP STUB
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12" X 6" STAINLESS STEEL WEDGE ANCHORS 12" C-C
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3" X 3" X " ANGLES 14" ANGLES GRATING SUPPORT
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AutoCAD SHX Text DETAIL A1 NOTE: ALL CONCRETE SHALL BE REINFORCED CLASS `C' MIX 4,000 PSI 6 INCHES THICK WALLS 3 INCH CONCRETE COVER STEEL SHALL BE #4 DEFORMED STEEL REINFORCEMENT BOTH WAYS AT 12 INCHES ON CENTER. THE BEDDING MATERIAL SHALL BE A MINIMUM OF 3 INCHES LAYER OF CLASS `A' CRUSHED STONE COMPACTED
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OF PIPEOF PIPE
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WATERTIGHT GASKET OR CONCRETE COLLAR
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WATERTIGHT GASKET OR CONCRETE COLLAR
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AutoCAD SHX Text H-3 SADDLE GRATING ANCHORS WITH BX2 TEK 3 STAINLESS STEEL WEDGE ANCHORS 12" C-C (8 REQUIRED) OR APPROVED EQUAL BY THE DNR ENGINEER
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WINNEBAGO COUNTY, IOWA
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LANGESEN WETLAND RESTORATION FOR:
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SEE DETAIL ON SHEET 15
4'-3"
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HEIGHT OF INLET
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AutoCAD SHX Text FLATTEN END OF THE ROD TO APPROX. " X 1 " 38" X 1 " 12" AND DRILL " DIA. HOLE CENTERED 1" FROM END 12" DIA. HOLE CENTERED 1" FROM END
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12" DIA. STEEL ROD
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AutoCAD SHX Text NOTE: THE STOP LOG SHALL BE ALUMINUM AND THE CONTRACTOR IS RESPONSIBLE FOR CUTTING STOP LOGS TO PROPER LENGTH AND ALL FABRICATION REQUIRED TO AVOID LEAKAGE. THE " DIMENSION IS CRITICAL AND 34" DIMENSION IS CRITICAL AND NEEDS TO BE CENTERED IN THE STOP LOG TO AVOID LEAKAGE. ACTUAL LENGTH IS TO BE DETERMINED ON SITE.
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1" LESS THAN TIGHT FIT, TO BE DETERMINED IN THE FIELD
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SEE NOTE
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AutoCAD SHX Text NOTE: STOP LOGS TO BE MANUFACTURED FROM " ALUMINUM TUBE 14" ALUMINUM TUBE STOCK (2 CHANNELS CANNOT BE WELDED TOGETHER) CONTRACTOR TO SUPPLY 10 STOP LOGS WITH A 6" HEIGHT AND 2 STOP LOGS WITH A 3" HEIGHT
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CUT HOLES TO FORM LIFTING PEGS
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AutoCAD SHX Text STOPLOG COMPONENTS: ( ALL ALUMINUM) STOPLOG 2" X 6" X 1/4" ALUMINUM (6061-T6) 6 REQ'D 6 REQ'D STOPLOGS 2" X 4" X 1/4" ALUMINUM (6061-T6) 3 REQ'D 3 REQ'D STOPLOG CHANNEL GUIDE 3" X 3" X " 16 LF 14" 16 LF (ANGLES WELDED TOGETHER BY A CONTINUOUS WELD AND WATERTIGHT.) LIFTING HOOKS GALVANIZED 2 REQ'D. 2 REQ'D. THIS LIST IS PROVIDED FOR INFORMATION ONLY ADDITIONAL MATERIALS NOT LISTED HERE MAY BE REQUIRED. LENGTH OF STEEL STOCK BEYOND WHAT'S LISTED HERE MAY BE REQUIRED TO ALLOW FOR FABRICATION
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AutoCAD SHX Text 58" X 2 " STAINLESS STEEL 34" STAINLESS STEEL ANCHOR BOLTS, 8 REQ'D OR APPROVED EQUAL BY THE D.N.R ENGINEER
STOPLOG CHANNEL
| 24-02-95-01 LANGESEN 2 WPA - NAWCA-Plan Set_V2.pdf |
| Sheets and Views |
| 24-02-95-01 LANGESEN 2 WPA - NAWCA-1 - COVER |
| 24-02-95-01 LANGESEN 2 WPA - NAWCA-2 - OVERALL PLAN |
| 24-02-95-01 LANGESEN 2 WPA - NAWCA-3 - NOTES |
| 24-02-95-01 LANGESEN 2 WPA - NAWCA-5 - GRADING |
| 24-02-95-01 LANGESEN 2 WPA - NAWCA-6 - PLAN & PROFILE |
| Langesen Concrete Box Sheets.pdf |
| Sheets and Views |
| Concrete Box Intake Structure-Layout1 |
| Langesen Concrete Box Sheets.pdf |
| Sheets and Views |
| Concrete Box Intake Structure-8. STOPLOG DETAIL (2) |
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