1. Statement of Work.pdf
PDF 367 KB Posted
- Attached to
- 127EAW26Q0037 - Dark Canyon Culvert Repair
- Solicitation number
- 127EAW26Q0037
- Issued by
-
Department of Agriculture Forest Service
About this file
This is a Statement of Work (SOW) for the Dark Canyon Culvert Repair project issued by the US Department of Agriculture Forest Service for the Shasta-Trinity National Forest.
The project involves repairing a 26-foot span, 16-foot-7-inch rise single radius arch multi-plate culvert located in the Hayfork Ranger District on Wild Mad Road in Shasta-Trinity National Forest, California. The culvert failed catastrophically in May 2025 due to insufficient compaction of structural backfill during original installation. The contractor must furnish all labor, equipment, tools, transportation, quality control, and supplies necessary to complete repairs per manufacturer guidance from Contech Engineered Solutions. Government-furnished materials include multi-plate steel components, bolts, nuts, and channel frames specified in the Government Furnished Property section. The contractor must provide all other materials including aggregate base, structural backfill, and concrete. Work includes installing two concrete collars at joint locations, reconstructing road subgrade to legacy design grades, placing and compacting aggregate base surface course, and hydraulic seeding and mulching of disturbed areas. The estimated start date is September 1, 2026, with a 90-day period of performance. All work must comply with Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects F-24, Dark Canyon Forest Service Supplemental Specifications, and applicable federal, state, and municipal regulations. The contractor must submit eight key deliverables including a Plan of Operation, Safety Plan, Hazardous Spill Plan, Erosion Control Plan, Structural Backfill Gradation, Traffic Control/Sign Plan, Aggregate Base Gradation, and Concrete Mix Design. Work restrictions include compliance with the Fire Plan and suspension during adverse weather. The contractor is responsible for all travel-related expenses within Mobilization costs, must designate a qualified on-site representative, and must maintain professional licenses and permits. Access to the project site requires a Road Use Permit due to Closure Order No. 14-25-09 on Wild Mad Road.
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US Department of Agriculture (USDA)
Statement of Work
Contents Project General Information
1.0 Scope of Work
2.0 Background
3.0 Location
4.0 Estimated Start Date / Period of Performance
5.0 Drawings and Specifications
6.0 Restrictions on Work
7.0 Camping and Housing
8.0 Required Submittals
Contractor Requirements
9.0 Technical Requirements / Tasks
10.0 Government Furnished…………………………………………………………………………………………………...….4/5
11.0 Deliverables / Schedule
12.0 Travel
13.0 Contractor’s Key Personnel
14.0 Site Visit
Project
DARK CANYON CULVERT REPAIR
General Information
1.0 Scope of Work
Project consists of furnishing all labor, equipment, tools, transportation, incidentals, inspection, quality control and supplies necessary to complete the Dark Canyon culvert and road repair. Culvert repair materials have been supplied to the Government by Contech Engineered Solutions and shall be provided to the Contractor (see list of Government-provided materials in the attached Drawings and Exhibits). All other necessary materials (aggregate base, structural backfill, concrete, etc.) shall be provided by the Contractor.
The Dark Canyon Culvert was damaged in May 2025, most likely due to the insufficient compaction of structural backfill during initial installation. The Contractor shall repair the existing 26'-0" span, 16'-7" rise single radius arch multi-plate culvert per the guidance of the manufacturer of both the original structure and the Government-provided culvert repair materials, Contech Engineered Solutions. This includes two (2) concrete collars at the joints of the original and repair materials. After the culvert has been repaired and road subgrade has been reconstructed to match the legacy design grades and elevations in the attached Drawings and Exhibits, an aggregate base surface course will be placed and compacted. Lastly, for stabilization, hydraulic seeding and mulch will be placed on fill slopes and other areas of disturbance.
All work shall be in accordance with the contract requirements. Contractor shall, without additional expense to the government, be responsible for obtaining any necessary licenses and/or permits which comply with any federal, state, municipal laws, codes, and regulations applicable to the performance of the work.
Equipment will be considered clean when visual inspection does not reveal soil, seeds, plant material, and other such debris.
Disassembly of equipment components or specialized inspection equipment is not required. Contractor shall notify the Contracting Officer at least five days in advance of moving equipment in so that arrangements can be made for inspections.
Contractor is responsible for temporary traffic control and construction signs shall be in accordance with the latest version of
MUTCD.
2.0 Background
Dark Canyon Multi-plate pipe arch culvert was built back in 1999/2000. The pipe arch experienced a catastrophic failure in May of 2025 when a multiplate seam failed and caused a large sinkhole to appear the full width of the roadway. This was determined to likely be caused by insufficient compaction of structural backfill during installation. The forest, while consulting with Contech Engineered Solutions, removed the backfill and removed the damaged pipe arch materials and came up with a fix consisting of adjoining the end sections of old pipe with the new middle section of pipe with concrete collars at the joints tying the pipe arch together as one unit.
Working with Contech the Forest has the necessary multi-plate steel and components needed to rebuild the pipe arch, which will be Government provided property under this contract.
3.0 Location
The project is located within the Hayfork Ranger District within the Shasta-Trinity National Forest. From the Hayfork District Office of the Shasta-Trinity National Forest, located at 11 Trinity Street in Hayfork, California, travel east on CA-3 for 3.4 miles, then turn right onto Wildwood Road (signs for Red Bluff) for 16 miles, then turn right onto CA-36 for 0.5 miles, then turn left onto Wild Mad Road for 19.3 miles, arriving at the project site (40° 14' 25.5” N, 123° 05' 02.9” W).
4.0 Estimated Start Date / Period of Performance
September 1, 2026/ 90 days.
5.0 Drawings and Specifications
The following drawings are included in the contract:
- Dark Canyon Drawings (07-23-26)
- Dark Canyon Specs (07-23-26)
All of the specifications from the Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects F-24 are applicable to this project and are part of this solicitation and any resultant contract. The specifications are included by reference and the full specifications are available at the following website: https://highways.dot.gov/federal-lands/specs/fp-24 Other specifications include: Dark Canyon Forest Service Supplemental Specifications, Pages 1-10.
6.0 Restrictions on Work
Work may be performed at any time during the period of the contract, except as outlined here. Nothing in this part shall be construed to take away any of the Government’s right under the Suspension of Work Clause (52.242-14). Restrictions are as follows:
1. In Accordance with the Fire Plan
2. When the Contracting Officer (or designated representative) determines that adverse weather has made access too dangerous or that continued vehicular travel would cause unacceptable road damage.
7.0 Camping and Housing
Camping is not permitted in US Forest Service campgrounds. Contractor [X ] will [] will not, be permitted to camp elsewhere on US Forest Service land. A camping permit must be issued. Camping on Forest Service land is not a right; permission may be revoked for failure to comply with the terms of the permit.
8.0 Required Submittals
A detailed Plan of Operation/Work Schedule Section 107- Safety Plan Section 107-Hazardous Spill Plan Section 157– Erosion Control Plan Section 208- Structural Backfill Gradation Section 635 – Traffic Control/Sign Plan Section 301- Aggregate Base Gradation Section 601- Concrete mix design
Contractor Requirements
9.0 Contractor Requirements
The Contractor shall possess and maintain all professional licenses required to perform the work specified under this construction contract. Pursuant to FAR 52.236-7, Permits and Responsibilities (July 2025), the Contractor is solely responsible for obtaining and maintaining all permits and licenses necessary to ensure full compliance and proper performance throughout the contract period.
10.0 Government Furnished Property
PIECES
ITEM #
ITEM DESCRIPTION
MPBSFDG5621128
MP SH FRMD DG 5/16 21 PI 12’ 8P
MPBSFDG5618128
MP SH FRMD DG 5/16 18PI 12’ 8P
MPBSFDG5615128
MP SH FRMD DG 5/16 15PI 12’ 8P
MPBFAGB3419
MP GV BOLT /4-19 X 5 HOOK (301)
MPBFAGB782
MP GALV BOLT 7/8 X 2 (393)
MPBFAGB78212
MP GALV BOLT 7/8 X 2-1/2 (394)
https://highways.dot.gov/federal-lands/specs/fp-24
MPBFAGB783
MP GALV BOLT 7/8 X 3 (395)
MPBFAGN34
MP GALV NUT ¾ (302)
MPBFAGN34
MP GALV NUT ¾ (302)
MPBSFDG5621108
MP SH FRMD DG 5/16 21 PI 10’ 8P
MPBSFDG5621108
MP SH FRMD DG 5/16 18PI 10’ 8P
MPBSFDG5621128
MP SH FRMD DG 5/16 21 PI 12’ 8P
MPBSFDG5618128
MP SH FRMD DG 5/16 18P 12’ 8P
MPBSFDG5615128
MP SH FRMD DG 5/16 15PI 12’ 8P
MPBCHFDG10ST
MP UNBAL CHAN FRM DG 10’ ST
MPBCHFDG1200ST
MP UNBAL CHAN FRM DG 12’ ST
11.0 Deliverables / Schedule
Key Deliverables
Item No. Deliverable Objective Due
1 Plan of Operation To Id Key contract milestones and timelines At notice to proceed
2 Safety Plan Identify contractors company safety practices At notice to proceed
3 Hazardous Spill Plan Ensure adequate measures for spill mitigation At notice to proceed
4 Erosion Control Plan Ensure adequate erosion control measures At notice to proceed
5 Structural Backfill Gradation
(Select Granular Backfill)
Compliance with contract specifications 14 days before backfill proceeding start
6 Traffic Control/ Sign Plan To provide for contractor and public safety At notice to proceed
7 Aggregate Base Gradation Compliance with contract specifications 14 days before aggregate base install
8 Concrete Mix Design Compliance with contract specifications 14 days before concrete pouring
12.0 Travel
All contractor travel-related expenses—including transportation, lodging, meals, and any other associated costs—are considered incidental and must be fully covered within Mobilization. The Forest Service will not reimburse the contractor for travel, per diem, accommodations, or any other personnel-related expenses.
13.0 Contractor’s Key Personnel
The contractor shall designate a qualified on-site representative who will be present during all project activities and authorized to act on behalf of the contractor. Only contractor personnel directly engaged in performing or supporting the work under this contract are permitted on the project site; no unauthorized individuals or non-project staff may enter or remain on the premises.
14.0 Site Visit
There will not be an organized Site Visit scheduled. The Wild Mad Road is currently under a Closure Order, Order No. 14-25-09.
Included in this solicitation are the following:
Closure Order No. 14-25-09 Closure Order No. 14-25-09 Map Wild Mad-Dark Canyon FS-7700- 48 Road Use Permit.
The Road use permit is a closure exemption permit that will allow contractors interested in bidding on the project legal access to the project site. Print out the permit, fill it out and sign it and keep it on your person while visiting the project site.
| Project |
| General Information |
| 1.0 Scope of Work |
| 2.0 Background |
| 3.0 Location |
| 4.0 Estimated Start Date / Period of Performance |
| 5.0 Drawings and Specifications |
| 6.0 Restrictions on Work |
| 7.0 Camping and Housing |
| 8.0 Required Submittals |
| Contractor Requirements |
| 9.0 Contractor Requirements |
| 10.0 Government Furnished Property |
| 11.0 Deliverables / Schedule |
| 12.0 Travel |
| 13.0 Contractor’s Key Personnel |
| 14.0 Site Visit |
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