Attachment 4 Synopsis and Map.pdf

PDF 357 KB Posted

Attached to
Prince's Point WRE, Jefferson County, WI Federal contract opportunity
Solicitation number
12FPC324B0006
Issued by
Department of Agriculture Under Secretary for Farm Production and Conservation

About this file

This document is a project overview for the Prince's Point Construction Project, a wetland restoration effort being conducted by the USDA Natural Resources Conservation Service (NRCS) in partnership with the Wisconsin Department of Natural Resources (WDNR).

The project will restore 1,750 acres of wetlands near Palmyra, Wisconsin and will include the construction of four wetland management basins, shallow scrapes and islands for habitat and wave protection, water control structures such as sheet piling and pump stations, and access road and bridge improvements. The work will be completed under a fixed-price Federal contract using sealed bid procedures. NRCS will provide technical and administrative oversight, with support from Ducks Unlimited staff for quality assurance. The contractor will be responsible for dewatering the site and complying with all permit requirements. NRCS has provided geotechnical data and other site information to assist contractors. The project site was formerly used for muck farming and has organic soils and existing drainage infrastructure. Legal access is available from two locations. A designated staging and storage area is identified on adjacent DNR-owned property.

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Prince's Point Construction Project Overview

The Natural Resources Conserva�on Service (NRCS) is assis�ng the Wisconsin Department of Natural Resources (WDNR) with the wetland restora�on of 1,750 acres through the Agricultural Conserva�on Easement Program (ACEP-WRE). The project site is located near Palmyra in Jefferson County, Wisconsin, Sec. 17, T. 5N 16E. NE ¼ of NE ¼ (42.896625N, -88.622669E). Restora�on of the project site will include the following measures:

• Four wetland management basins defined by exis�ng and constructed dikes.

• Shallow scrapes and islands for habitat and wave protec�on.

• Water control structures (sheet piling, pipes, gates, pump sta�ons) for water level management.

• Access road and bridge improvements for opera�on and maintenance of the wetland management basins.

The restora�on will be completed under a fixed price, Federal contract using sealed bid procedures. Plan drawings and specifica�ons are stamped by the NRCS State Conserva�on Engineer. The NRCS Contrac�ng Officer’s Representa�ve (COR) will monitor technical and administra�ve aspects of contractor performance and provide quality assurance. Ducks Unlimited staffs will assist the COR with quality assurance ac�vi�es to ensure the work complies with the plan drawings and specifica�ons. Among other provisions of a Federal contract, the Contractor will comply with requirements in the NRCS Supplement to OSHA Parts 1910 and 1926 to secure the construc�on site and conduct a safety program commensurate with the work.

The property was formerly owned by Kincaid Farms for the purpose of muck farming root vegetables and herbs.

Farm fields are situated between the Mud Creek, Scuppernong River, Spring Creek and Steel Brook. Fields were protected from flooding with about 7 miles of dikes. Saturated soils were drained with patern �le (at two different depths), ditches, and three pump sta�ons. When the pumps are turned off, water table depths range from 1 to 5 feet.

The project site consists of organic soils ranging in depth from 0-21 feet and underlain with Marl sediments. Dikes and islands will be constructed from organic soils borrowed from shallow scrapes within the basins. Site condi�ons require a contractor with earth-moving equipment that exerts low ground pressure. Contractor is responsible for dewatering the project site through the performance period with the exis�ng pump sta�ons and drainage network, using auxiliary pump capacity and drainage system maintenance as needed.

Two sheet pile structures will be constructed to facilitate ingress and egress of floodwater into the wetland basins.

Driven Z-piles will require a paint coa�ng in the upper third of each sec�on and a welded cap. Two water level control structures will be fabricated and installed with 24” diameter, corrugated metal pipe under a dike and access road. Two concrete pump sta�ons will be installed on a pile founda�on to prevent setlement. The exis�ng bridge will require a new �mber deck, and web reinforcement between the main W-beams. The access road will be elevated with silty clay material, reinforced with geotex�le, and capped with gravel.

NRCS will provide data from a geotechnical inves�ga�on completed in July 2022. Data includes logging, classifica�on, and sampling of soil in 24 holes ranging from 12 to 40 feet. Drilling was completed through the exis�ng dikes, under the proposed sheet pile structures and pump sta�ons, and each side of the bridge crossing.

NRCS will also provide data from a soils inves�ga�on completed in May 2023. Data includes logging and classifica�on of soils and water table depths in 80 holes ranging from 0-6 feet. Topographic survey is available to correlate the construc�on lines and grades to the test hole eleva�ons.

Water surface eleva�ons in the Scuppernong River were monitored over a 2-year �me period to establish trends in baseflow condi�on throughout the year. Flood hazard data is also available from the Jefferson County Flood Insurance Study which provides stage-discharge ra�ng tables for the 2 through 100-year frequency storms of various dura�ons at the project site.

The contractor shall comply in all ways with the requirements of all obtained permits, including:

• WDNR General WPDES Permit for Storm Water Discharge from a construc�on site.

Prince's Point Construction Project Overview

• WDNR Chapter 30 Water Quality Cer�fica�on.

• Jefferson County Planning and Zoning Floodplain Permit.

Legal access to the site from 2 loca�ons is available and shown on the provided map. The first access on the southeast end of the easement off Kincaid Lane and Highway 59 is the legal easement access point. There is also legal access by DNR ownership off Highway 106 on the northeast corner of the site through the gravel driveway that spans the en�re site. There is also a designated staging and storage area for contractors in the DNR owned field off the Kincaid Lane access point.

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GRAPHIC SCALE

1 inch = feet500

500 0 250 500 1000 2000

EASEMENT BOUNDARY

SAME AS LIMIT OF DISTURBANCE

BOUNDARY OTHER THAN WHERE

ADDITIONAL DNR LAND CONNECTS

(YELLOW DASHED BOUNDARY)

LEGAL EASEMENT ACCESS

OFF KINCAID LANE

DNR OWNED ACCESS OFF

HIGHWAY 106

DNR OWNERSHIP

OUTSIDE OF EASEMENT

DNR OWNERSHIP

OUTSIDE OF EASEMENT

PROPOSED STAGING & STORAGE

AREA ON DNR PROPERTY

DNR OWNERSHIP

OUTSIDE OF EASEMENT

WDNR-Kincaid Synopsis_BSE.pdf
KincaidAccess&Staging.pdf

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