Specs_-_Moosehorn_Bridges_1_20_22.pdf

U.S. Fish & Wildlife Service Moosehorn National Wildlife Refuge

103 Headquarters Road Baring, Maine 04694

USFWS – OPEN BOTTOM BRIDGE CONTACT 1

SPECIFICATIONS

This procurement is being solicited as a firm-fixed price contract.

Evaluation Factors:

Lowest Price, Technically Acceptable Schedule availability, see deliverables schedule within specifications

Specifications:

Moosehorn National Wildlife Refuge is looking to purchase four (4) precast concrete box bridges with precast footers to elevate the bridge above the proposed stream bed and support a moderate–use small vehicle traffic and low-use heavy truck traffic roadway.

The contractor will provide the design and fabrication of a bridge that will be shipped unassembled to Baring, Maine;

to be off-loaded and assembled on-site by refuge staff.

Shop drawings will be provided by the contractor indicating structure layout, geometry, design assumptions, material specifications, assembly notes and requirements for backfill material and placement. Contractor will provide the dimensions and design spec sheets for footers/keyways that will be constructed by refuge staff. The bridge design shall conform to the latest edition of ASTM C 1504 and be submitted to USFWS Engineers for approval prior to manufacturing. The four bridges (3-sided open bottom) must meet the following specifications:

M cRa Flowage:

Inside 13 ft

7 ft (bottom of base footer to bottom of deck) ft Design Vehicle: HL-93 Shape: 3-sided open bottom bridge/culvert crossing Design Code: AASHTO LRFD Bridge Design Specifications Culvert Type: Precast reinforced concrete bridge– to be filled (by owner) to simulate steam bed Type of Material:

Wingwalls:

Curbing: Yes ( Guardrails: Yes – pre-manufactured guard rails and mounting hardware on the outer edge of bridge slabs Base Footers:

Top Footer/Abutment: Keyed into base footer and grooved to fit/lock bridge slab Deadman/Bank Tie-Back: Keyed footer block design to interlock with footer and hold back abatement walls

103 Headquarters Road Baring, Maine 04694

USFWS – OPEN BOTTOM BRIDGE CONTACT 2

M cRa Roadway Flowage:

Inside 3 ft ft (bottom of base footer to bottom of deck) ft Design Vehicle: HL-93 Shape: 3-sided open bottom bridge/culvert crossing Design Code: AASHTO LRFD Bridge Design Specifications Culvert Type: Precast reinforced concrete bridge– to be filled (by owner) to simulate steam bed Type of Material:

Wingwalls:

Curbing: Yes ( Guardrails: Yes – pre-manufactured guard rails and mounting hardware on the outer edge of bridge slabs Base Footers:

Top Footer/Abutment: Keyed into base footer and grooved to fit/lock bridge slab Deadman/Bank Tie-Back: Keyed footer block design to interlock with footer and hold back abatement walls

Otter Flowage:

ft ft (bottom of base footer to bottom of deck) ft Design Vehicle: HL-93 Shape: 3-sided open bottom bridge/culvert crossing Design Code: AASHTO LRFD Bridge Design Specifications Culvert Type: Precast reinforced concrete bridge– to be filled (by owner) to simulate steam bed Type of Material: certified) Wingwalls:

Curbing: Yes ( Guardrails: Yes – pre-manufactured guard rails and mounting hardware on the outer edge of bridge slabs Base Footers: Base footer to bed against Top Footer/Abutment: Keyed into base footer and grooved to fit/lock bridge slab Deadman/Bank Tie-Back: Keyed footer block design to interlock with footer and hold back abatement walls

Seel y Flowage:

ft ft (bottom of base footer to bottom of deck) ft Design Vehicle: HL-93 Shape: 3-sided open bottom bridge/culvert crossing Design Code: AASHTO LRFD Bridge Design Specifications Culvert Type: Precast reinforced concrete bridge– to be filled (by owner) to simulate steam bed Type of Material:

Wingwalls:

Curbing: Yes ( Guardrails: Yes – pre-manufactured guard rails and mounting hardware on the outer edge of bridge slabs Base Footers:

Top Footer/Abutment: Keyed into base footer and grooved to fit/lock bridge slab Deadman/Bank Tie-Back: Keyed footer block design to interlock with footer and hold back abatement walls

103 Headquarters Road Baring, Maine 04694

USFWS – OPEN BOTTOM BRIDGE CONTACT 3

Bid Schedule:

Bid must include the following:

1. Lead Time for Design Drawings after receipt of award

2. Lead Time for Fabrication and Delivery once approvals are received

3. Specifications and Materials

Deliverables Schedule and Location:

Design to be provided for review no more than 2 weeks after contract award. Design approval from USFWS Engineers will be granted or rejected upon receipt of design.

Delivery of culvert shall be on or before 2 to:

Moosehorn National Wildlife Refuge

Deadlines:

Questions must be emailed to Contracting Officer at contracting_officer@fws.gov no later than 1 Monday, Quotes must be emailed to Contracting Officer at contracting_officer@fws.gov no later than 1 Friday 2/ 2

If you have any questions, please contact Contracting Officer at xxx-xxx-xxxx.

Attachments:

Terms & Conditions