B08_-_SOW_ALNWR_Water_Infrastructure_10_22_23.pdf

STATEMENT OF WORK

Water Management Infrastructure Alligator River National Wildlife Refuge

PR:

Background Alligator River National Wildlife Refuge (NWR) in Dare County, North Carolina manages a cooperative farming program as a habitat management tool to meet refuge purposes and wildlife goals and objectives as outlined in the refuge’s Comprehensive Conservation Plan. Water management is an integral part of managing the farmlands which are surrounded by a perimeter dike. This contract is for the purchase of water management infrastructure that is needed to replace damaged water control structures and a culvert and to improve management efficiency by replacing wooden stop logs with aluminum ones that are not prone to swelling, leaking, or damage from rakes and beavers.

Scope

• Contractor shall fabricate and deliver purchased goods to Alligator River NWR, 13518 Milltail Road, East Lake, NC 27953 in Dare County.

• Contractor shall fabricate water control structures with aluminum stoplogs, a culvert, and additional aluminum stoplogs with the dimensions and quantities as described in Table 1.

NOTE: The proposed combination of board heights is desired and preferred to give flexibility in water control. If contractor is unable to supply 8-in high boards, bids will be accepted with additional 6-in high boards to make up for the height that would be supplied by the 8-in boards.

• All stoplogs will be aluminum with slots for removing boards. The slots should be 3-in X 0.75-in. Two slots or lifting holes are required per stoplog. See Figure 1A.

• Contractor shall provide two, six-foot long lifting handles for the aluminum stoplogs. See Figure 1B.

Table 1. Infrastructure Quantities and Dimensions Description Quantity

1) 48-in X 8-ft (working board height), 2 bay 12 gage half round aluminum flashboard riser with a 1-ft drop solid bottom; 36-in X 40-ft 12 gage corrugated aluminum outlet pipe welded to riser as one unit; “H” beam center in riser for 2 bays for boards

Slotted stoplogs for water control structures:

2-in X 8-in X 0.125-in (3/bay x 2 bays x 2 risers) 2-in X 6-in X 0.125-in (9/bay x 2 bays x 2 risers) 2-in X 4-in X 0.125-in (4/bay x 2 bays x 2 risers)

Total 64

2) 36-in X 40-ft 12 gage aluminum pipe 1

3) Additional Stoplogs Slotted stoplogs:

2-in X 8-in X 0.125-in X 44.25-in 2-in X 6-in X 0.125-in X 44.25-in 2-in X 4-in X 0.125-in X 44.25-in

Total 12

Slotted stoplogs:

2-in X 8-in X 0.125-in X 57.75-in 2-in X 6-in X 0.125-in X 57.75-in 2-in X 4-in X 0.125-in X 57.75-in 2-in X 2-in X 0.125-in X 57.75-in

Total 14

Slotted stoplogs:

2-in X 8-in X 0.125-in X 36.25-in 2-in X 6-in X 0.125-in X 36.25-in 2-in X 4-in X 0.125-in X 36.25-in

Total 32

4) Lifting handles for slotted aluminum stoplogs 2

Figure 1. Slotted stoplogs (A) and lifting handle (B).

Deliverables Deliverables are as described in Table 1 and include:

1.) Two water control structures with a total of 64 aluminum stoplogs 2.) One corrugated aluminum culvert 3.) Additional 58 aluminum stoplogs of various lengths 4.) 2 sets of lifting handles for aluminum stoplogs

Delivery shall be made to the Alligator River East Lake Operations and Maintenance Shop at 13518 Milltail Road, East Lake, NC 27953, Monday-Friday between 7:30am and 3pm. Deliveries should be scheduled 48-hours in advance with the Refuge Point of Contact:

Kelley Van Druten kelley_vandruten@fws.gov

(252) 475-0172

Period of Performance Contractor has 60 calendars days from the date of award for fabrication and delivery to the Alligator River NWR East Lake Maintenance Shop.

mailto:kelley_vandruten@fws.gov