SOW_St__Francis_Radial_Gate_Hoist_Systems.pdf

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United States Department of the Interior

FISH AND WILDLIFE SERVICE

Sherburne National Wildlife Refuge

17076 293rd Ave

Zimmerman, MN 555398

Statement of Work for Radial Gate (Taintor) Hoist System.

Sherburne National Wildlife Refuge, Zimmerman, MN

1.0 Purpose

The purpose of this Statement of Work (SOW) is to procure two radial gate (Taintor) hoist systems.

There are two 8’x16’ steel radial gates capable of operating independently from one another located on the St. Francis River. The current hoist systems are estimated to be approximately 50 years old and are due for replacement. The U S Fish and Wildlife Service (FWS), Sherburne National Wildlife Refuge, seeks to contract for the services from several water control system vendors to provide two sets of hoist systems designed to lift a 8’x16’ radial arm gate with manual labor from the user. Each system should include a gearbox with proper reduction ratios, pulleys, cables, gate attachment hardware, drum shafts, and bulkhead bearing. The hoist systems are to be installed by FWS Staff.

2.0 Background

Sherburne National Wildlife Refuge consists of 30,700-acre refuge that was established in 1965 to protect and restore the habitats associated with the St. Francis River Valley for migratory birds and other wildlife. The focus for upland management on the refuge is to restore oak savanna. The refuge lies in the deciduous forest –woodland zone of Minnesota on the Anoka Sandplain, a large flat sandy outwash area now thought to be lacustrine in origin, with small dune features and low moraines exposed above the outwash. This zone in Minnesota is transitional between tallgrass prairie and deciduous forest.

The Sherburne National Wildlife Refuge has multiple water control structures (WCS). The WCS gives staff the ability to manipulate water levels to better serve wildlife and the surrounding community. The ability to change water levels is vital to the composition of the refuge.

3.0 Scope of Work

The Contractor shall do the following:

1. The contractor must furnish all materials, equipment, and delivery of two radial gate hoist systems to the following location:

a. 19099 313th Ave N.W, Princeton, MN 55371.

2. Bidders shall be required to provide plans and specifications as a method of judging the

2 | acceptability of the product. Plans shall be reviewed by FWS and should include the design of the hoist system, installation requirements, and rated capabilities. The plans shall be modified as necessary after award.

3. SPECIFICATION AND SCOPE:

a. The hoist system shall consist of a hoist base, gears, cable drums, drumshaft, cables, bearing base, and handwheel to operate the radial gate.

b. Gears shall be cast iron or steel, accurately machined with cut teeth, smooth running with suitable shafts of cold-rolled steel. The cast iron housing shall be machined to receive all shafting and shall hold gears in alignment without binding. All gearing and shafting shall be suitable for auxiliary motor operation.

c. The hoist shall be furnished with cold-rolled steel drum shaft and two fabricated drums manufactured from pipe. Each drum will have an inner and outer flange to aid in guiding the wire rope. Stainless steel cables and clamps shall be furnished for field connection of the cables to the bottom corners of the gate

d. The design of the hoist mechanism shall be such that the radial gate can be operated with no more than 40-lb effort of the 30". diameter cast iron handwheel. The direction of rotation to open the gate shall be cast on the handwheel rim. Anchor bolts shall be provided to attach the hoist and bearing base to the concrete.

e. All anchor bolts, assembly bolts, screws, nuts, etc., shall be of ample size to safely withstand the forces created by operation of the gate under the specified head.

Quantity and size of fasteners shall be as recommended by the manufacturer. Anchor bolts shall be provided with two nuts each to facilitate installation.

f. All exposed carbon steel surfaces shall be given one coat of manufacturer's standard paint. The hoist shall be given one coat of machinery enamel.

g. Materials shall conform to the requirements of the following standards:

h. Cold-Rolled Steel (Shafting and Pins), ASTM A108, Grade 1045

i. Stainless Steel (Fasteners), ASTM F593 or F594 Group 1

j. Cast Iron, ASTM A126, Class B

4.0 Place of Performance

Project equipment and hardware to be delivered to 19099 313th Ave N.W, Princeton, MN 55371.

5.0 Period of Performance

The radial gate hoist system must be delivered no later than 30 days after contract is award date.

6.0 Government Furnished Information

Sherburne National Wildlife Refuge Staff will provide access to contractor personnel as needed.

Sherburne National Wildlife Refuge Staff will support the Contractor with gaining access to facility(s) required for completion of the tasks listed above.

7.0 Administration

The primary points-of-contact for this project are:

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Greg Dehmer, Deputy Refuge Manager US Fish and Wildlife Service, greg_dehmer@fws.gov Phone 763-389-3323 Cell- 763-244-0062

Tyler Paulson, Maintenance Worker US Fish and Wildlife Service, tyler_paulson@fws.gov Cell- 763-244-0209

St. Francis 8’x16’ Radial Gate, Sherburne NWR

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Sherburne National Wildlife Refuge, Zimmerman MN

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St. Francis Radial Gate Hardware, Sherburne NWR

St Francis Pool Carpenter Drawings