Attachment B, Scans, Project #23-04-80-01.pdf
PDF 2 MB Posted
- Solicitation number
- 23-04-80-01
- Issued by
- Scott County, Iowa
About this file
This is a set of construction documents from the Iowa Department of Natural Resources for an erosion control project at Kellerton WMA in Ringgold County, Iowa (Project #23-04-80-01). The project involves addressing head-cut tunnel formation from gully erosion through grading and installing erosion control measures at six sites. Key components include installation of Flexamat FR Rolls (6 EA), Flexamat installation (2880 SF), grading (1500 CY), mulch sock installation (6 EA of 20' length), seeding and mulching (1 LS), and obtaining an NPDES permit. The project documents include detailed plan sheets showing site locations, typical installation details, and seeding requirements.
The project requires contractors to verify locations with DNR inspectors, conform to applicable codes, and follow Iowa Statewide Urban Design Specifications (SUDAS). The construction area includes specific grading requirements to create flow paths with less than 5% slope leading to Flexamat installations. Native seed mix and buffer plantings are required for disturbed areas, with specific Equisetum species plantings along centerlines. The project includes access from 258th Street and requires contractors to handle disposal of excess materials and maintain erosion control features throughout construction.
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| File | Type | Posted |
|---|---|---|
| Standard Contract, Project #23-04-80-01.pdf | ||
| 1288991-event.pdf |
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Text version
PROJECT NUMBER:
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AUGUST 30, 2024
23-04-80-01
KELLERTON EROSION CONTROL
SHEET INDEX
IOWA DEPARTMENT OF NATURAL RESOURCES
CONSTRUCTION DOCUMENTS
FOR
KELLERTON WMA
KELLERTON EROSION CONTROL
RINGGOLD COUNTY, IOWA
PROJECT #23-04-80-01
DIRECTORY
CONSTRUCTION INSPECTOR
IOWA DEPARTMENT OF NATURAL RESOURCES
6200 PARK AVE, SUITE 200
DES MOINES, IA 50321
T.J. HERRICK
515-250-3715 tj.herrick@dnr.iowa.gov
A.1 A.2 C.1 D.1 D.2
COVER SHEET
OVERALL PROJECT MAP
ESTIMATED QUANTITIES AND GENERAL NOTES
PLAN AND PROFILE
SEEDING PLAN
PROJECT MANAGER
IOWA DEPARTMENT OF NATURAL RESOURCES
6200 Park Ave.
DES MOINES, IA 50321
Zach Gunsolley, P.E.
515-250-3713 zach.gunsolley@dnr.iowa.gov
WMA LOCATION MAP
AutoCAD SHX Text Match Exisiting Grade
AutoCAD SHX Text Grade at 2%
AutoCAD SHX Text THIS PROJECT INCLUDES addressing head-cuts formed from gully erosion by grading and shaping exiting surface to a point overlaid with erosion resistant material (Flexamat) CONSTRUCTION PER IOWA STATEWIDE URBAN DESIGN AND SPECIFICATIONS (SUDAS).
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CONTACT
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RINGGOLD COUNTY
AutoCAD SHX Text Project Location
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OVERALL PROJECT MAPSCALE: 1" = 200'
0' 200' 400' NORTH
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TYP LIMITS OF CONSTRUCTION (LOC)
AutoCAD SHX Text TYP Flexamat (16' x 30' mat)
AutoCAD SHX Text TYP Centerline of Grading
AutoCAD SHX Text Site 1
AutoCAD SHX Text Site 2
AutoCAD SHX Text Site 3
AutoCAD SHX Text Site 4
AutoCAD SHX Text Site 5
AutoCAD SHX Text Site 6
AutoCAD SHX Text Access to Project Area
AutoCAD SHX Text 258th St.
County Rd. P64
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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: Zach Gunsolley, P.E. (515)-250-3713 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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NOT TO SCALE
TYP. PLAN AND PROFILE
AutoCAD SHX Text Flexamat Match Existing Grade
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LOC
AutoCAD SHX Text Grade from LOC with goal to create flow path to Flexamat of < 5%
AutoCAD SHX Text Fill from grading
AutoCAD SHX Text Start of Headcut
AutoCAD SHX Text Existing Ground
AutoCAD SHX Text Flexamat (Installed per manufacture's specs)
AutoCAD SHX Text Match Existing Grade
AutoCAD SHX Text Finish Grade < 5%
AutoCAD SHX Text Flexamat (Installed per manufacture's specs)
AutoCAD SHX Text Finish Grade <5%%%
AutoCAD SHX Text 8" Mulch Sock 20' Length Installed parallel to channel Downstream of Disturbed Soil
Mulch Sock
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TYP. SEEDING MAPSCALE: 1" = 40'
0' 40' 80' NORTH
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TYP SEEDING W/IN LOC
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BUFFER CENTERLINE 10' WITH EQUISETUM SP.
NATIVE SEED MIX OVER ALL DISTURBED AREAS
| Sheets and Views |
| 23-04-80-01 KELLERTON EROSION CONTROL-1 - COVER |
| 23-04-80-01 KELLERTON EROSION CONTROL-2 - OVERALL PLAN |
| 23-04-80-01 KELLERTON EROSION CONTROL-3 - NOTES |
| 23-04-80-01 KELLERTON EROSION CONTROL-4 - PLAN & PROFILE |
| 23-04-80-01 KELLERTON EROSION CONTROL-5 - Seeding |
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