C04 2 SOW Timber Temp Bridge 12444627Q0004.pdf
PDF 1 MB Posted
- Attached to
- Purchase of 2 or 3 Temporary Road Bridges
- Solicitation number
- 12444627Q0004
- Issued by
-
Department of Agriculture Forest Service
About this file
This is a Statement of Work (SOW) for the Superior National Forest Timber Temporary Bridges project issued by the United States Department of Agriculture Forest Service.
The supplier must design, fabricate, and deliver two temporary timber bridges measuring 20 feet long by 14 feet wide (clear width) with all components necessary for installation, including decking, bolts, washers, and nuts. An option price for an identical third bridge must also be provided. The bridges must be designed as panel laminate structures with spike-laminated longitudinal deck panels, nominal 3-inch wear planks, and curbing connecting only to deck panels. All materials and workmanship shall comply with FHWA Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-24), and bridges must be designed per AASHTO LRFD Bridge Design Specifications (9th edition, 2020), AASHTO Guidelines for Geometric Design of Low-Volume Roads (2nd edition, 2019), National Design Specifications for Wood Construction, and FSH 7709.56b. Bridges must accommodate HL93 vehicles and concurrent Minnesota Statute requirements for gross weight increases and forest products permits, with operating load ratings ≥1.0 for all Minnesota standard permit vehicles. Material specifications include Douglas Fir-Larch lumber treated with copper naphthenate per AWPA specifications (UC4C), ASTM A307 galvanized hardware, and incised timber prior to treatment. The supplier must submit design drawings for Contracting Officer's Representative (COR) approval before fabrication, vendor material lists and drawings within 60 business days of contract award, weekly fabrication reports during production, and monthly status reports by the 5th of each month. Bridge delivery to Isabella Work Station Storage Yard (9420 State Hwy 1, Isabella, Minnesota) is required by July 30, 2027. The solicitation is intended to be awarded before the end of calendar year 2026. The supplier must assign experienced construction/fabrication workers, with certified welders if welding is required. No government-furnished materials are provided, and no travel expenses are anticipated.
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SUPERIOR NATIONAL
FOREST
Timber Temporary Bridges
Project Statement of Work (SOW)
US Department of Agriculture (USDA)
Contents Project
General Information
1.0 Scope of Work
2.0 Background
Supplier Requirements
3.0 Technical Requirements / Tasks
4.0 Government Furnished
5.0 Deliverables / Schedule
6.0 Travel
7.0 Supplier’s Key Personnel
8.0 Security Requirements
9.0 Data Rights
10.0 Section 508 – Electronic and Information Technology Standards
Project Timber Temporary Bridges
General Information
1.0 Scope of Work
The intent of this contract is to provide temporary timber bridges to be used on forest roads; furnish and deliver temporary bridges to the Superior National Forest. The bridges shall have all components included which are necessary for installation (e.g., decking, bolts, washers, nuts).
The Supplier shall furnish all materials, components, transportation, and supplies necessary to meet the intent of this contract; and shall perform all work in accordance with the provisions of the contract.
The Contracting Officer (CO) must approve any deviation in the specifications.
2.0 Background
When required the Forest Service (FS) uses temporary bridges for contractor access to stands of timber during timber sales. The bridges provided in this contract will add to the inventory of temporary bridges on the Superior National Forest for timber sale access.
Supplier 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-24, published by the United States Department of Transportation, Federal Highway Administration.
All project specifications shall follow the FHWA Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-24.
The Supplier shall submit design drawings to the FS Contracting Officer’s Representative (COR) for review prior to proceeding with fabrication.
The Supplier shall fabricate two 20’-0” long (end to end of deck) x 14’-0” wide (clear width) panel laminate bridges. The supplier shall supply an option price for the government to purchase an identical third bridge.
o The bridge pieces must be able to be hauled as legal highway loads.
o The bridges shall be designed to AASHTO LRFD Bridge Design Specifications, 9th edition, 2020, AASHTO Guidelines for Geometric Design of Low-Volume Roads, 2nd edition 2019, National Design Specifications for Wood Construction, latest edition, and FSH 7709.56b Transportation Structures Handbook, USDA Forest Service.
o The structure shall be designed for HL93 vehicles. The design load shall accommodate concurrently Minnesota Statute 169.826 Gross Weight Seasonal Increases and 169.8261 Forest Products Special Permit. The structure shall have an operating load rating for all Minnesota standard permit vehicles greater than or equal to 1.0. The calculated load rating shall be in accordance with The Manual for Bridge Evaluation, latest edition by AASHTO. The calculated load rating report shall be a submittal item. A sample load rating summary table for the vehicles to be included in the load rating report is shown below.
o The longitudinal deck panels shall be spike-laminated and span between supports.
o The bridge shall be supplied with nominal 3-inch wear planks.
o The bridge shall be supplied with curbing that connects only to the deck panels.
o Deflection requirements according to AASHTO LRFD Bridge Design Specifications.
o Bridge manufacturer shall design and supply materials for longitudinal deck panel connection to a timber bridge substructure.
o The material specifications are:
Nail Laminate Timber: Douglas Fir-Larch Timber connection hardware: ASTM A307 (galv to ASTM F2329 (A153)) o All lumber shall be treated with copper napthenate in Type A hydrocarbon solvent in accordance with AWPA specifications to meet UC4C.
o Whenever possible all adzing, boring, chamfering, framing, gaining, mortising, surfacing and general framing, etc., shall be done prior to treatment. If cut after treatment, coat cut surfaces according to AWPA M4.
o Timber shall be incised prior to treatment.
o Lumber and timber shall meet the requirements of AASHTO M168. Glue laminated timber shall be manufactured using wet use adhesives o Knotholes and holes from causes other than knots shall be measured and limited as provided for knots. All visible pieces of lumber and timber having knots that are unsightly in appearance shall be rejected. Cluster knots and knots in groups are not permitted.
o Only pieces consisting of sound wood free from any form of decay shall be accepted. No piece of exceptionally light weight shall be accepted.
4.0 Government Furnished
The Government will not be furnishing any materials or supplies for the contract. 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 solicitation is to award the project before the end of calendar year 2026.
The bridge(s) shall be delivered to the Isabella Work Station Storage Yard across the road from the
Isabella Work Station 9420 State Hwy 1, Isabella, MN by July 30, 2027.
Supplier 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.
Supplier shall notify the Government of the date of fabrication completion. At that time the
Government shall work with the Supplier to schedule the delivery of the bridges.
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.
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 Fabrication Weekly Reports
Monitor Fabrication Progress Submitted weekly during fabrication 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 are not necessary for this project.
7.0 Supplier’s Key Personnel
The Supplier shall assign workers who are experienced in construction/fabrication to complete the described project. If welding is required, the welders shall be certified for the type of welds they are performing.
8.0 Security Requirements
There are no Security Requirements involved with this project.
9.0 Data Rights
Access to USFS data is not required for this contract. The Supplier will not have access to USFS data for this contract.
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.
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