Att. 3 FR911 Updated SOW 241231.pdf

STATEMENT OF WORK

FR 911 HOLCOMBE CREEK BRIDGE DECK REPLACEMENT &

SUPERSTRUCTURE PAINTING

1. This solicitation is to provide construction services for maintenance and repair of the FR911 Holcombe Creek Bridge. The work shall include, but not be limited to maintenance of FR911 (mowing, brushing, grading, supply and placement of stone), removal of existing bridge deck, raising the bridge elevation, installing crusher run and new white oak mud sills under the bridge, installation of replacement bridge deck, disposal of waste materials, removal of existing guardrail, sandblasting of the entire bridge structure and repainting with 100% containment, riprap placement, and installing gravel to approaches.

2. Mobilization - Item No.15101-0000

• Scope: All necessary mobilization and demobilization to the site and all incidental work not specifically called out in another item.

3. Soil Erosion and Sediment Control - 15700-0000

• Scope: Provide erosion and sediment control in accordance with West Virginia BMPs as necessary to prevent/control erosion and sedimentation. Provide and install straw waddles where necessary and provide and install temporary seeding and mulching as necessary in areas that will not be further disturbed within 14 days. Provide and install permanent seeding and mulching at the finish of the project prior to final payment.

Submit an erosion and sediment control plan prior to mobilization for approval by COR. Provide and install Winter Wheat at 50lbs/acre November-March. Provide and install Southern Quick Erosion Control Cover Mix 208 (Roundstone Native Seed) April-May and September-October at 50lbs/acre. Provide and install Southern Quick Erosion Control Cover Mix 209 (Roundstone Native Seed) June-August at 50lbs/acre.

Weed free straw shall be used for all mulch and waddles.

4. Initial Road Grading - Item No. 20000-0001

• Scope: Removal of top layer of organic debris and muck down to the aggregate road base. Clean ditches, culvert inlets, culvert outlets, and broad-based dips to include removal of all debris to a point of restoration of drainage without ponding. Repair potholes. Reshape the road surface to a crowned profile except at the bottom of broad-based dips. The final road surface shall be smooth, without wash boarding, and crowned at approximately 3% per sheet C-03 of the plans. The bottom of broad-based dips shall not be crowned but shall be out-sloped to permit drainage without ponding.

The area(s) to receive initial road grading are identified in the Road Maintenance Maps document The thickness requirement for aggregate shown on sheet C-03 is not part of this item.

5. Final Road Grading - Item No. 20000-0002

• Scope: Clean ditches, culvert inlets, culvert outlets, and broad-based dips to include removal of all debris to a point of restoration of drainage without ponding. Repair potholes. Reshape the road surface to a crowned profile except at the bottom of broad-based dips. The final road surface shall be smooth, without wash boarding, and crowned at approximately 3% per sheet C-03 of the plans. The bottom of broad-based dips shall not be crowned but shall be out-sloped to permit drainage without ponding.

The area(s) to receive final road grading are identified in the Road Maintenance Maps document. The thickness requirement for aggregate shown on sheet C-03 is not part of this item.

6. Roadway Brushing and Mowing - Item No. 20104-0001

• Scope: Cut all brush and stems smaller than 5” dbh (diameter breast height) within the clearing limits provided on sheet C-03 of the plans. Limbs from stems 5” or larger dbh shall be trimmed to a height of at least 14’ above the road or bridge surface within the clearing limits. Cut dead and down logs within the clearing limits into manageable sections. Place all resulting material and slash on the fill slope. Ensure no resulting material encroaches on the traveled way and cut all material such that it lays flat. Clean all resulting material from ditches and drainage structures including outlet ditches. The area to receive brushing and mowing – beginning on the right-of-way on private land and ending approximately 150’ beyond the bridge is identified in the Road Maintenance Maps document. Approximately .6 miles of roadway will be brushed and mowed.

7. Bridge Brushing and Mowing - Item No. 20104-0002

• Scope: Cut all brush and stems smaller than 5” dbh within 30’ horizontally of the outside edges of the bridge within the flagged limits of disturbance. Limbs from stems 5” or larger dbh shall be trimmed to a height of at least 14’ above the road or bridge surface within the flagged limits of disturbance.

8. Class 1 Riprap for Bridge Reset (Machine Placed) - Item No. 25100-0000

• Scope: Provide and install Class 1 riprap on the far slope between the mudsill and stream bank. Obtain COR approval of placement location prior to material delivery and installation. Under no circumstances shall the riprap be placed in the stream or any equipment operated in the stream. See Table 705-1 of the FP-14 for riprap sizing.

9. AASHTO #1 Limestone for Road Maintenance - Item No. 30000-0001

• Scope: Supply, place, and grade stone where necessary to improve and maintain the road. The stone shall be shaped such that road surface is smooth, without wash boarding, and crowned at approximately 3% per sheet C-03 of the plans. The bottom of broad-based dips shall not be crowned but shall be out-sloped to permit drainage without ponding. The 6” thickness of stone shown on sheet C-03 of the plans is not required. Written government approval of amount and location is required prior to placement and must be within section of Road identified to receive Road Maintenance in the Road Maintenance Maps document.

10. 2.5” or 3" Crusher Run Limestone For Road Maintenance - Item No. 30000-0002

• Scope: Supply, place, and grade stone where necessary to improve and maintain the road. The stone shall be shaped such that road surface is smooth, without wash boarding, and crowned at approximately 3% per sheet C-03 of the plans. The bottom of broad-based dips shall not be crowned but shall be out-sloped to permit drainage without ponding. The 6” thickness of stone shown on sheet C-03 of the plans is not required. Written government approval of amount and location is required prior to placement and must be within identified Road Maintenance section of road.

11. 1.5" Crusher Run Limestone For Road Maintenance & Bridge Reset - Item No. 30000-0003

• Scope: Supply, place, and grade stone where necessary to improve and maintain the road. The stone shall be shaped such that road surface is smooth, without wash boarding, and crowned at approximately 3% per sheet C-03 of the plans. The bottom of broad-based dips shall not be crowned but shall be out-sloped to permit drainage without ponding. The 6” thickness of stone shown on sheet C-03 of the plans is not required. Written government approval of amount and location is required prior to placement and must be within identified Road Maintenance section of road.

12. Bridge Reset - Item No. 55000-0000

• Scope: Raise the bridge such that the deck elevation is approximately 1’ higher than currently existing per sheets 9 and 10 of the plans. Install white oak mud sills as abutments at locations approved by the COR. Excavate existing material below the bridge and within 2.5’ of the deck at each end of the bridge per plan sheet 9. Install nonwoven geotextile in the excavation footprint prior to backfilling. Backfill and compact 1.5” crusher run in accordance with sections 209.09 and 209.10 of the FP-14. A Proctor test in accordance with AASHTO T99, Method C is required. Two passing tests per layer are required for backfill to be acceptable. Backfill to extents shown on plans and as necessary to raise the bridge elevation. 40 tons of 1.5” crusher run shall be considered incidental to this item for backfill and shall not be paid under any other item.

Provide and install geotextile under the 1.5” crusher run backfill and class 1 riprap. The nonwoven geotextile shall be US Fabrics US 160NW or approved equivalent. Cost of providing and installing geotextile is incidental to this item. Provide and install Grade 60 #8 rebar per plan.

13. Redecking of Bridge and Installation of Running Planks - Item No. 55706-2000

• Scope: Remove and legally dispose of all existing timber deck materials. Provide and install new timber deck and running planks per the contract plans for the entire bridge.

Provide white oak running planks. Do not provide northern red oak running planks.

Provide deck panel submittals per the contract plans stamped by a PE with a statement that the deck panels are designed in accordance with AASHTO Specifications and meet an HL-93 Load Rating.

• Timber decking shall be treated in accordance with UC4B in heavy oil – copper naphthenate or approved equivalent. All cuts or penetrations in the deck panels made after initial treatment shall be field treated in the manner recommended by the manufacturer with the same compound used to provide initial treatment.

• Running planks are not required to be treated.

14. Bridge Painting - Item No. 56308-0000

• Scope: Sandblast and repaint all steel components of the bridge in accordance with the contract documents. Contractor shall provide 100% containment of waste for the entire bridge structure per the contract documents. Remove galvanized guardrail hardware and place in a staging area on site that is approved by the COR. The contractor shall repair any paint damage which occurs during transport, installation, or any other of the contractor's operations. Steel deck pans and retaining angles must also be sandblasted and repainted.

• Contractor shall follow Section 563 of the FP-14 including Table 563-1 Structural Iron and Steel Painting Systems for New Surfaces or Surfaces with Existing Paint Removed – Paint System 2 for all painting operations. Contractor shall also follow all manufacturers recommendations for installing, drying times, etc if referenced, not directly addressed by, or more stringent than contract requirements.

• The entire bridge is to be sandblasted to bare metal per SSPC-SP 10/NACE No. 2 – Near-White Blast Cleaning. Prepare surfaces inaccessible to near-white metal blast cleaning according to SSPC-SP 11 – Power Tool Cleaning to Bare Metal. Follow procedures outlined in 563.08(a)(1) for all surfaces including those with sound and unsound paint.

• The contractor shall submit the color selection to the government for approval.

The color shall be a variety of dark green.

15. Contractor shall remove all waste from the all contract operations prior to demobilizing.

Contractor shall dispose of all materials in a legal manner off Forest Service Lands, such as a landfill. Contractor is responsible for finding proper legal disposal location.

16. Contractor is responsible for 100% containment of all paint and other debris resulting from deck removal/replacement, sandblasting, and painting operations.

17. All guardrail removed from the bridge by contractor is to remain property of the USDA Forest Service. Forest will be responsible for removing from construction site.

18. Contractor shall submit the Bridge Deck Shop Drawings as well as all forms and specifications for bridge deck treatment to the Forest Service prior to installation for approval by the COR.

19. The contractor shall furnish the necessary personnel, material, equipment, services, and facilities (except as otherwise specified), to perform the Statement of Work/Specifications. See contract drawings for general layout and details for the bridge deck replacement.

20. Prior to beginning construction, the Contractor is responsible for identifying appropriate commercial sources of material except where a specific source for a particular material is identified in the Contract, Contract Plans, or by the CO.

21. No excavation shall be permitted within the designated staging areas. Only grading within the road prism to the level of the aggregate base shall be permitted. Staging areas shall be hardened stone prior to utilization. Under no circumstances will the stone used for the staging area(s) stone be paid under any of the stone items in the contract. All stone used for hardening staging areas is incidental to mobilization. Straw waddles shall be installed to catch runoff from staging areas. Portions of staging areas not protected by aggregate shall be seeded and mulched as necessary to control erosion.

22. During the construction, the Contractor shall preserve and protect all vegetation (such as trees, shrubs, and grass) on or adjacent to the work site not found within the roadway limits, clearing limits, or staging areas, which are not to be removed, and which do not unreasonably interfere with the work required under this contract. Only stems smaller than 5” dbh are permitted to be cut and removed.

CONTRACT TIME

The contract time for this project will be 151 days with a period of performance from March 10, 2025 – August 8, 2025. Contract time includes delays for weather; holidays; locating and transporting supplies and materials; and final site cleanup. The contractor shall submit a schedule to the Contracting Officer for approval, 14 calendar days prior to the anticipated start of work.

APPLICABLE SPECIFICATIONS (ROADS PROJECTS)

Standard and Supplemental Specifications for FP-14 shown in the specification listing contained in the attachments are applicable to this contract. All specifications not included in the specifications listing but referenced by listed specifications, are applicable. The Supplemental Specifications shown on the specification list are physically attached.

[X] FHWA Standard Specification 2014 U.S. Customary applies [_] FHWA Standard Specification 2014 Metric applies

The attached “List of Specifications” and “Supplemental Specifications” apply.

LOCAL DISPOSAL SITES

Debris encountered in the construction (i.e.; metals) and other waste materials generated in the construction (cartons, scrap, etc.) shall be removed and disposed of off National Forest Service Land.

TRAFFIC CONTROL, BARRICADES, WARNING SIGNS AND OTHER DEVICES

The contractor shall place warning signs/barricades around any open excavation sites to protect the safety of employees and the public. Costs for these barricades shall be incidental to existing work items. The contractor shall provide for public safety by providing Type III Barricades with “Bridge Out” signs at either end of the bridge along and a separate high visibility pedestrian barrier set at either end of the bridge during all deck removal, bridge sandblasting and painting, and deck replacement operations. Traffic Control is incidental to Mobilization. 5% of the mobilization item may be paid upon installation of traffic control.

SALVAGE RIGHTS

No Contractor salvage rights exist under the contract unless specifically provided elsewhere herein.

SPECIAL EQUIPMENT CLEANING REQUIREMENTS

All earth moving equipment (loaders, excavators, dump trucks, etc.) moved to the job site shall be cleaned of weeds and their seeds prior to each entrance onto the National Forest lands.

Cleaning shall consist of the removal of all dirt, grease, debris and materials that may harbor noxious weeds and their seeds. This may require the use of a pressure hose.

Equipment shall be made available for visual inspection by the Forest Service prior to entering Forest Service lands. The Contractor shall advise of a proposed date for mobilization at least 1 week prior to mobilization.

Inspections will take place at mutually agreeable en route locations in advance of entry onto National Forest lands.

Special care shall be taken to assure removal of noxious weeds and their seeds.

The Contractor shall take special care under this contract to prevent contamination of water at the work sites with any petroleum residues from mechanical equipment operations. This shall include daily inspection and cleaning as appropriate.

FINAL CLEANUP

Contractor shall remove and dispose of all of its own trash and refuse from the contract area.

Material to be removed includes, but is not limited to, camp refuse such as tin cans, aluminum foil, glass, paper, garbage, used engine oil, oil filters, oil cans, grease cartridges, etc. The Contractor shall also remove and dispose of upon completion of the road construction, all stakes, old culverts, flagging and similar debris within the project area. This cleanup is a subsidiary item for which no special payment will be made. All debris shall be disposed of off National Forest Land and in accordance with State and Local disposal requirements.