C4b_Attachment B Statement of Work.pdf

Statement of Work

The purpose and intent of this requirement is to secure trail maintenance services for motorized trails listed in the Schedule of Items, trail log, and as shown on the attached maps. Trails to be maintained are located on the Ava Ranger District of the Mark Twain National Forest 09/01/2026-09/01/2027.

See attached trail log for reference of trails to be maintained.

This project will maintain existing motorized trails. Trails to be brushed are generally located in old growth forests. Work includes tread and drainage maintenance on several miles of trail within the Chadwick Motorized Trails System.

Specific directions to each trail are available through the area offices.

Standard Specifications and Special Project Specifications which are applicable to this contract are listed in the attached Specification List. The Special Project Specifications are physically attached.

Typical Work Activities off Highway Vehicle Trails:

Trail maintenance and construction should be completed according to specifications found in the Trail Management Objective’s for each trail. Trail Management Objectives are documents which identify the intended purpose and management of an NFS trail based on management direction and access objectives. Objectives will identify the purpose of the trial, the intended level of development and the intended type of trail. OHV trails shall also include Over Snow Vehicle Trails, as well. Design parameters such as tread width, target grade, short pitch maximum, cross slope, clearing width, clearing height, switchback radius, surface type, allowable protrusion size, and allowable obstacle size will guide the maintenance and construction of Off Highway Vehicle Trails. Non-standard items which diminish or exceed these standards will be called out specifically in the contract.

Drainage Maintenance Techniques

The Contractor shall clean, repair, reshape, reconstruct drainage structures and construct new drainage structures on trails, as required, to provide positive drainage for the entire length of trail. Construction, reconstruction, and maintenance of grade dips, rolling dips, lead-off ditches and other drainage features shall be per attached drawings and specifications. This work should establish a minimum of 50 grade dips per mile for non-OHV trails and a minimum of 100 grade dips per mile for OHV trails (more in wet and steep sections of trail). Existing dips may be utilized if they are cleaned, repaired, or re-constructed such that they produce adequate positive drainage off the trail.

The Contractor shall divert water that is eroding the trail bed or is in imminent danger of eroding the trail bed. Water shall be diverted by cleaning and repairing failed or non-functioning drainage structures and constructing diversions such as shallow ditches or out-sloping. Culverts which are plugged or partially plugged and holding water in the catch basin shall be unplugged. Remove grass, brush, and trees less than 4” diameter for a distance of 6 feet in all directions from the inlet and outlet of culverts.

All ditches shall be cleared and maintained to the shape and grade required to ensure trail drainage. Drainage structures and trail appurtenances shall not be damaged during this operation. Handwork required to properly connect ditch flow to drainage structure inlets is considered a part of this activity. Cleaning lead-off ditches to drain is included in this item of work. Cleaning silt traps that service the trailside ditch(es) or lead-off ditch(es) are included in this work. Restore silt traps to their original dimensions and depth.

All suitable materials having the same character as the trail surface excavated through ditch cleaning shall be reclaimed and used within the trail. No debris from ditches shall remain in or around culvert entrances. Unsuitable material from ditches or silt traps shall be spread along trail shoulders, in depressions, or on fill slopes in a manner which will not affect watercourses and drainage from the traveled way or shoulders.

Any down trees in the ditch line are considered incidental to Drainage Maintenance and shall be removed from the ditch line. Disposal shall be on National Forest land unless otherwise agreed upon by requiring office. Disposal shall not impede the traveled way, shoulders, or stream courses. Slides within the ditch line are considered incidental to Drainage Maintenance. Slides shall be removed from the ditch line and disposed of in a manner as to not impede any stream courses, traveled ways or shoulders.

Armoring Trail and Trailhead- Aggregate Surface

When ‘armoring’ or ‘hardening’ of trail tread or specified areas of trailhead using aggregate materials is included in a task order, the work shall comply with the drawings and specifications as referenced in the Task Order. Unless otherwise specified, aggregate surfacing, if included as a pay item, shall be crushed stone with gradations being obtained by crushing, screening and mixing as necessary. Aggregate Surface and Base Course shall meet all requirements for gradation, hardness, and durability, as specified. Certifications of Compliance are required from aggregate suppliers. Certifications of Compliance are required from aggregate suppliers.

Hazard Tree Removal

The Contractor shall remove trees and snags that are broken off or that are in a leaning, unstable position over the trailway. Standing dead and danger trees within the clearing area and within 15

ft. of either side of the trail centerline shall be removed (i.e., a 30 ft. wide corridor centered on the trail centerline) or as shown in the Task Order.

Mechanized Trail Construction/Maintenance Mechanized trail construction and maintenance activities may include restoring the original trail templates, clearing, removing slough and berm, borrow, filling ruts and troughs, reshaping backslopes, reshaping trail tread, restoring drainage, constructing check dams, removing rocks, roots, and stumps, and rehabilitation of trail structures such as stairways, retaining walls, handrails and trail bridges. Construction activities may include the relocation of existing trail systems, sustainable trail designs, and trail rehabilitation.

Mechanized trail construction may include the use of the following equipment: Front end loader, backhoe, trail dozer, mini excavator, skis steer, ATVs, Sheepsfoot rollers and haulers/carriers.

Proficient use and endorsements of mechanized equipment are preferred.

1. All equipment and vehicles to be used at the job site shall be cleaned and free of invasive species (noxious weeds), seeds, external grease and oil and shall be inspected prior to entrance onto Federal lands. The restriction should include equipment and vehicles intended for off-road use as well as on road use, whether they are owned, leased, or borrowed by the Contractor or Subcontractor.

2. All protective plating and armoring shall be intact and properly functioning on the equipment to reduce the potential for damaging hydraulic hoses or the undercarriage.

3. Spill kit approved by OSHA for petroleum product leaks will be on site at all times.

General Guidelines:

Project areas are located within the geographic limits of The Mark Twain National Forest. The scope covers federal and local agency lands within Forests’ boundaries which include but are not limited to; all counties and lands within Forests’ boundaries, Job Corps Civilian Conservation Centers, and administrative facilities.

All maintenance specifications, drawings, and construction specifications are made a part of this solicitation and any resultant contract. Specifications and drawings may be found at the following links:

Technical Specifications Trail Maintenance:

1. General Specifications

a. Perform trail maintenance and new trail construction for trails as specified in the Trail Log and Schedule of Items. Work shall include existing trail restoration

(911), brush cutting (912), drainage maintenance (927), aggregate surfacing, logging out, and danger tree removal (912). All work outlined in the trail-log for which there is no separate pay item shall be incidental to Trail Maintenance & Construction.

b. All maintenance activities shall be limited to daylight hours and no work shall be performed on weekends or federal holidays. Any work conducted outside of these hours will require prior written approval from the Contracting Officer’s Representative (COR).

2. Execution

a. Contractor Equipment and Workforce

i. Contactor will provide all necessary equipment, tools, supplies and labor to perform trail maintenance work on either motorized or non-motorized trails.

ii. Contractor will provide a dozer or equivalent machine suitable to perform OHV trail/road maintenance work.

3. Trail Technical Specifications

a. Trail Tread and Roadbed Maintenance

i. Contactor will repair damaged trail tread and roadbed to previous width surface character.

1. If additional material is required- Contactor will utilize existing native material within trail/road template ahead of or behind damaged section.

ii. Trail/road will be sloped wherever possible to ensure water drainage. Berming of materials on the edge of trails/roads is not permitted. All usable material shall be deposited within the trail/road template. Unsuitable material or rocks greater than 4 inches shall be scattered outside of the template in such a way it will not roll into the trail/road.

iii. Suitable Material – Reclaim, conserve and use all suitable on-site material from maintenance and construction operations for specified work. Suitable on-site material shall include soil free of duff with a recognizable granular structure, having the same character as the trail surface and rock that can be accommodated in the trail structure.

b. Existing Trail Restoration (911.30):

i. This works consists of restoring the original trail template, including clearing, removing slough and berm, borrow, filling ruts and troughs, reshaping backslopes, excavation, reshaping trail tread, removing flood debris, restoring drainage (repairing and reconstructing grade dips and lead-off ditches) at a minimum of one per 100 feet and an increased frequency on steeper slopes and other trail structures, tread surface hardening with aggregate, removing protruding rocks, roots, and stumps.

In general, raise trail tread with fill, as indicated in trail log and required to achieve positive drainage. Install drainage above all structures to prevent erosion of structure (steps, hardened surface sections). Hardened surface sections shall be intermittently transected with drainage features (about every 50 ft.) to prevent erosive flows along hardened surface.

Moving on-site rock and rock chiseling may be required in some sections to create passable trail tread meeting trail class parameters. This work shall be incidental to Existing Trail Restoration.

c. Drainage Maintenance (920.01):

i. General Drainage Maintenance activities- where trail/road drainage facilities have been plugged and the water has been diverted from the intended channel, remove debris causing diversion and return the drainage to the channel. If washing or ponding of water has been or is occurring, fill ponded area with suitable material and construct appropriate water diversion device (water-bar, rolling dip, or water turnout) to keep water off and away from the trail/roadbed. Clean ditches to permit the free flow of water into culverts and away from the trail/road. Scatter all unusable or unneeded material that is cleared from drainage structures 3 feet or more beyond and below the trail/road or drainage facility and out of waterways.

Drains with positive drainage off trail will be at a minimum of one per 100 feet and at a higher frequency on steeper sections of trail. Existing drains can be used towards this baseline metric if they provide positive drainage off the trail. Some existing drains may need to be cleaned or reconstructed to return their function.

ii. Trail Condition- Some sections of the trail may be in good condition. If trail tread is in good condition with proper drainage, the contractor should not create unnecessary ground disturbance. Some sections of the trails may be entrenched or down to bedrock. Contractor shall utilize usable material within the trail template 100 feet ahead and behind damaged sections to repair the trail. Entrenched sections of the trail that do not allow for repair/creation of drainage features shall be smoothed over. Hardening of switchbacks and climbing turns in areas with sensitive soils is recommended. Extensive earthwork outside of the trail template is not permitted. Notify COR when entrenching or the bedrock prevents maintenance activities.

1. Entrenched areas and mud-holes shall be drained & filled with suitable material, compacted, and graded to drain. Fill material must be well-compacted and stable with positive drainage established such that the fill material will not be washed away. Suitable soils may have migrated from the old roadbed and are often found within the disturbed corridor (e.g., in drainage ways, lead-off ditches, trail-side berms, silt traps, etc.). Drainage ways shall be cleared, and these suitable soils shall be ‘pulled in’ and used in trail tread grading operations. Unsuitable material from ditches or silt traps shall be spread along trail shoulders, in depressions, or on fill slopes in a manner which will not affect watercourses and drainage from the traveled way or shoulders.

iii. Water-bars- clean the upgrade side of all existing water-bars and maintain them as necessary. Remove material accumulated against water-bars. Use and compact suitable material removed from upgrade side of water-bars to bring the downgrade side of the trail/roadbed flush with the water-bar. Remove all debris from the lead-off area of all water-bars that restrict the free flow of water away from the trail/road. Repair the water-bar as necessary with like material to ensure proper function. Some of the existing water-bars may be obliterated from heavy use and difficult to identify on the ground. When encountering sections of the trail where this is evident, water bars shall be installed at eye level looking at the slope until level ground.

iv. Drainage Dips- clean deposited material and restore drainage dips as necessary. Remove all debris from the lead-off area of dips that restrict the free flow of water away from trail/road.

Use suitable material obtained by cleaning dips for fill on the downgrade side. Equipment compaction shall be done on all material placed in the trail/roadbed. Favor drainage dips over water bars. Frequently, large rolling grade dips with lead-off ditches are required.

v. Water-Turnouts- maintain existing water turnouts and construct new water turnouts as needed to divert water off trail/roadbed.

d. Brush and Snag Removal (912.30 and 912.40)

i. 912.30 Logging Out- cut and remove all logs that extend across or into the trail/roadway.

The portions of cut logs that remain on the upper side of the trail/road shall be either firmly anchored to prevent sliding or rolling or moved across the trail/road- way to the lower side and scattered outside the clearing limits.

ii. Vegetation Removal- remove all vegetation encroaching into the horizontal and vertical trail/roadway. All cut materials will be removed and scattered in a manner that will not block any waterways.

iii. 912.40 Snag and Danger Tree Removal- snags (standing dead trees) and trees that are broken off or that are in a leaning, unstable position over the trail/roadway with the potential to fall across the trail will be cut down or pushed over. Cutting will be done close to ground level or done in a manner that does not leave stumps that are aesthetically unpleasing or could be a safety hazard for trail/road users. The portions of cut logs that remain on the upper side of the trail shall be either firmly anchored to prevent sliding or rolling or moved across to the lower side and scattered outside the clearing limits.

Trail Specifications:

1. General Specifications

a. All construction activities shall be limited to daylight hours, and no work shall be performed on weekends or on federal holidays. Any work conducted outside of these hours requires prior written approval from the COR.

2. Execution

a. Contractor Equipment and Workforce

i. Contactor will provide all necessary equipment, tools, supplies and labor to perform trail construction work on either motorized or non-motorized trails.

ii. Contractor will provide a dozer or equivalent machine suitable to perform OHV trail/road and non-motorized trail construction work.

3. Trail Technical Specifications

a. Construction activities may include restoring the original trail templates, clearing, removing slough and berm, borrow, filling ruts and troughs, reshaping backslopes, excavation, reshaping trail tread, restoring drainage, constructing check dams, removing rocks, roots, and stumps, and rehabilitation of trail structures such as stairways, retaining walls, handrails and trail bridges.

b. Standard specifications for construction of trails are included by reference. The sections are included as an attachment to the solicitation and contract. The sections applicable to the work are the following: 911 through 993.

c. All trail work required under this contract shall be done in accordance with Standard Specifications for Construction of Trails and Trail Bridges on Forest Service Projects (Oct. 30, 2014). See Typical Trail Feature Figures for trail feature design specifications.

Public and Safety Control Specifications

A. The contactor shall exercise caution and care while pursuing the work to prevent unnecessary conflict with, or potential hazards to, trail/road users.

B. The contractor shall post warning signs with flags on each end of the section of trail/road being worked. Signs shall be minimum of the 24” x 24” size, reflectorized orange with black lettering colors. These signs shall be moved as needed to properly delineate and identify the section of trail being maintained. At no time shall these signs be more than ½ mile from operating equipment and shall be in place only when trail equipment or individuals are performing operations.

C. Contractor shall maintain the existing road in a condition suitable for the passage of vehicular traffic with a maximum delay of one hour. Incomplete work shall not be left at the end of shift in such a condition that it impedes the normal flow of traffic and crates a hazardous condition.

Inspection Specifications

A. CORs will conduct daily/weekly inspections to ensure that work is completed to desired standard. COR will provide specific locations and directions for trail/road maintenance activities.

COR will also provide advice to contractor to accomplish work to standard.

B. To facilitate timely inspections, the contactor shall inform the government of the proposed operation schedule. The contractor shall notify the government of schedule changes.

All construction activities shall be limited between daylight hours and no work shall be performed on weekends or federal holidays. Any work conducted outside of these hours will require prior written approval from the COR.

C. If the contractor must unlock a gate, the contractor is required to relock the gate upon entry and egress.

D. Service work credit will only be processed after the completion of an entire trail section.

Partial credits will not be authorized.

REPORTING SPECIFICATIONS

The contractor shall submit a performance report annually ninety (90) calendar days prior to the conclusion of the current period of performance to the Contracting Office.

A. Performance Report

a. The contractor’s performance report shall include the following:

i. A synopsis of services performed during the period of performance to include:

1. Name of ordering activity and authorized purchaser

2. Location of work performed

3. Order award amount

4. Status of order

5. Name of COR

ii. Changes to key personnel

iii. Findings and recommendations (executive summary)

Bio-preferred

The Contractor shall utilize products and material made from biobased materials (e.g., biobased greases, biobased hydraulic fluids, biobased absorbents) to the maximum extent possible without jeopardizing the intended end use or detracting from the overall quality delivered to the end user.

All supplies and materials shall be of a type and quality that conform to applicable Federal specifications and standards. All supplies and materials to be used in the performance of work described herein are subject to the approval of the COR.

The following is an example list of products that may be used in this contract for services for which biobased products are available. The list is not all inclusive. It is desirable that vendors be able to supply the greatest number of biobased products listed meeting health and environmental specifications.

Hydraulic fluids

Penetrating lubricants

Concrete and asphalt

Release fluids

Absorbents

Diesel fuel

Additives

Greases

Dust suppressants

2-cycle engine oil

Wood and concrete sealers

Fertilizers

Roof coatings

Water tank coatings

Adhesive and mastic removers

Cleaners

Sorbents

Floor finish

Floor stripper

Composite panels

Janitorial supplies

Insulating foam

Sealers

Carpet

Metal working fluids

Graffiti and grease removers

Stain removers

Degreasers

De-icers

Biobased products that are designated for preferred procurement under USDA’s Bio Preferred program must meet the required minimum biobased content as stated in the USDA Final Rule available at www.biopreferred.gov. The Contractor should provide data for their biobased products such as biobased content. In addition to the biobased products designated by the U.S.

Department of Agriculture in the Bio Preferred Program, the Contractor is encouraged to use other biobased products.

The Contractor shall submit with the initial proposal a complete list of biobased products, indicating the name of the manufacturer, cost of each material, and the intended use of each of the materials that are to be used in carrying out the requirements of the contract. Additionally, the winning Contractor on each anniversary date of the contract shall compile a complete list of biobased products, including the information above, purchased to carry out the contract requirements. The Contractor shall list volume to be used and total cost for each individual product. This information will be used for reporting purposes.