SOW Noname Creek Pincushion Bridges.pdf

Superior National Forest

Noname Creek and Pincushion Mountain Trail Bridge Replacements

Project Statement of Work (SOW)

US Department of Agriculture (USDA)

Contents Project General Information

1.0 Scope of Work

2.0 Background

Contractor Requirements

3.0 Technical Requirements / Tasks

4.0 Government Furnished

5.0 Deliverables / Schedule

6.0 Travel

7.0 Contractor’s Key Personnel

8.0 Security Requirements

9.0 Data Rights

10.0 Section 508 – Electronic and Information Technology Standards

Project Pincushion Mountain Loop Bridge #2 Replacement @ MP 2.143 Pincushion Mountain Loop Bridge #6 Replacement @ MP 0.545 Caribou Snowmobile Trail No. 91044 over Noname Creek Bridge Replacement @ MP 10.556

General Information

1.0 Scope of Work

The intent of this contract is to provide for replacement of three trail bridges in the Superior National Forest: Pincushion Mountain Loop Bridge #2 Replacement @ MP 2.143, Pincushion Mountain Loop Bridge #6 Replacement @ MP 0.545, and Caribou Snowmobile Trail No. 91044 over Noname Creek Bridge Replacement @ MP 10.556. The project will include traffic control monitoring; demolition and removal existing bridges, furnish and install new timber abutments and wing walls and all associated hardware; furnish and install rip rap, backfill and geotextile drainage material for cribbing; furnish and place aggregate; install permanent bridge signs and object markers; furnish and install timber superstructure – including dowel-laminated deck system, curb/railing systems, deck wearing surface (where designated) and all associated hardware; approach rail system and all associated hardware where designated; seed and mulch all disturbed areas; and protect the waterways and associated wetlands from siltation and other destructive impacts of construction.

The Contractor shall furnish all labor, materials, equipment, tools, transportation, and supplies necessary to meet the intent of this contract; and shall perform all work in close conformity with the drawings and specifications, and in accordance with the provisions of the contract.

The CO must approve any deviation in the specifications or drawings.

** Bridge removal cannot commence prior to a June Bat Survey, Coordinate date of survey with COR. Should nesting bats be found, bridge removal will be delayed until Aug 1. No in-stream work shall be performed between April 1st though June 30th. All in stream work must be completed by September 15.**

2.0 Background

The existing Pincushion Mountain Loop Bridge #2 is an 18’‐2” long x 10’‐0” wide timber girder bridge. The abutments are timber sills. The deck consists of timber planks. The coordinates for the bridge are 47.7726N, ‐90.2962W.

The new bridge will be a 29’‐6” long x 12’‐0” clear width single span dowel‐laminated timber slab bridge. The abutments shall be a timber sill on timber cribbing.

The existing Pincushion Mountain Loop Bridge #6 is an 18’‐0” long x 10’‐0” wide timber girder bridge. The abutments are timber sills. The deck consists of timber planks. The coordinates for the bridge are 47.7759N, ‐90.3037W.

The new bridge will be a 27’‐6” long x 12’‐0” clear width single span dowel‐laminated timber slab bridge. The abutments shall be a timber sill on timber cribbing.

The existing Caribou Snowmobile Trail No. 91044 over Noname Creek Bridge is a 20’‐4” long x 12’‐0” wide timber girder bridge. The abutments are timber sills. The deck consists of timber planks with a timber wearing surface. The coordinates for the bridge are 47.673862N, ‐90.662W.

The new bridge will be a 34’‐0” long x 12’‐3” clear width single span dowel‐laminated timber slab bridge. The abutments shall be a timber sill on timber cribbing with a wing wall on the upstream side on each end. The bridge will have 19’‐0” timber approach rails at each end.

Contractor Requirements

3.0 Technical Requirements / Tasks

All materials and workmanship shall be in accordance with the FHWA Standard Specifications for Construction of Roads and

Bridges on Federal Highway Projects, FP‐14, published by the United States Department of Transportation, Federal Highway Administration.

All project specifications shall follow the specification summary listed in the USFS Pincushion Mountain Loop Trail Bridge #2 Replacement @ MP 2.143 drawing package signed on 06/07/2023, USFS Pincushion Mountain Loop Trail Bridge #6 Replacement @ MP 0.545 drawing package signed on 06/07/2023, USFS Caribou Snowmobile Trail No. 91044 over Noname Creek Bridge Replacement @ MP 10.556 drawing package signed on 06/07/2023, FHWA Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP‐14, and the project supplemental specifications.

The contractor shall field verify the dimensions of all components before ordering materials. The Contracting Officer’s Representative (COR) shall be notified of any observed differences from the dimensions given in the SOW, design drawings, or any observed omissions.

The contractor shall submit the order (documentation, drawings, design documentation, etc.) from the bridge material vendor to the COR for review prior to proceeding with fabrication.

The contractor shall establish traffic control for that structure before commencing with any work on the bridge.

The contractor shall construct a single span dowel‐laminated timber slab bridge at each of the three locations specified.

o The bridge shall be designed to LRFD Guide Specifications for the Design of Pedestrian Bridges, AASHTO 2009, with

2015 interim revisions, AASHTO LRFD Bridge Design Specifications, 9th Ed. 2020, AASHTO Guidelines for Geometric Design of Low‐Volume Roads, 2nd Ed. 2019, FSH 7709.56b Transportation Structures Handbook, USDA Forest Service, Timber Bridges: Design, Construction, Inspection, and Maintenance (USDA Forest Service), and National Design Specifications for Wood Construction, 2018.

o The design load shall be 90psf, H10 concurrent with snow load, or H15 without snow load.

o The bridge railing design shall be 50 plf or a 200 lb. point load at any location.

o Timber preservation treatments shall be in accordance with current state and/or AASHTO specifications. All timber shall be treated with copper naphthenate in hydrocarbon solvent Type A per AWPA, UC4C (minimum).

o Timber material list and material properties for the project shall be as listed in the respective drawing package signed on 06/07/2023.

o All hardware shall meet ASTM A307‐97 galvanized to F2329 (A153). All high strength hardware for curb, railing and spreader beam connections shall meet ASTM F3125 GR A325 or A449 galvanized to A153.

4.0 Government Furnished

The Government will not be furnishing any materials or supplies for the removal of the existing bridge or the construction of the new bridge. The government Contracting Officer Representative (COR) must approve all materials, supplies and design drawings used on the project to ensure that they are meeting the project specifications.

5.0 Deliverables / Schedule

The intent of the project is to complete the project during the FY 2024 construction season. The project final completion date shall be September 15.

Contractor shall submit the project schedules and reports outlined in the Key Deliverables Table including a written project schedule within 15 business days of receipt of project award.

The vendor prepared design documents (documentation, drawings, etc.) shall be reviewed and approved by the COR prior to proceeding with fabrication.

The Government may take up to 14 calendar days from date of receipt to review project submittals.

Contractor shall notify the Government of the date of substantial completion. At that time the Government shall inspect the work and provide Contractor with a copy of a punch list of items to complete before the project status is considered final completion. The project shall be considered complete once the COR has verified that all items on the punch list have been addressed.

Tasks and Associated Deliverables: Timely submission of deliverables is essential to successfully completing the project.

Schedules for deliverables are specified in Table 1. All deliverables shall be prepared and submitted according to format, content, and schedule described in the SOW. The progress report shall cover all work completed during the specified period and shall present the work to be accomplished during the subsequent period. This report shall also identify any problems that arose and a statement explaining how the problem was resolved. This report shall also identify any problems that have arisen but have not been completely resolved and provide an explanation.

Table 1 Key Deliverables

Item No. Deliverable Objective Due

1 Proposed Project Plan Defining the responsibilities, timeline, risks and milestones of contract objectives. Ref. 3.0

No later than fifteen (15) business days after contract award

2 Revised Project Schedule

Report schedule changes/updates As project is updated until the contract expires

3 Vendor material list and drawings

Ensure the correct material specifications are provided

No later than sixty (60) business days after contract award

4 Construction Daily Reports

Monitor Construction Progress Submitted weekly during construction phase

5 Monthly Status Report Monthly report documenting tasks and issues identified during the month

The 5th day of each month after contract award

6.0 Travel

Travel expenses to the project site and during construction shall be included in the mobilization/demobilization costs for the project.

7.0 Contractor’s Key Personnel

The Contractor shall assign workers who are experienced in construction to complete the described project. The personnel shall be experienced with timber and nailed and structural bolted connections.

8.0 Security Requirements

There are no Security Requirements involved with this project.

9.0 Data Rights

The USFS Pincushion Mountain Loop Trail Bridge #2 Replacement @ MP 2.143 drawing package, USFS Pincushion Mountain Loop Trail Bridge #6 Replacement @ MP 0.545 drawing package, and USFS Caribou Snowmobile Trail No.

91044 over Noname Creek Bridge Replacement @ MP 10.556 drawing package supplied as references to successfully complete the required work outlined in the SOW and shall only be used for their respective project sites.

10.0 Section 508 – Electronic and Information Technology Standards Supply of Information technology is not part of this contract, so Section 508 requirements are not required for information technology. Section 508 requirements for all project communication and documents shall be followed.