PWS_Missoula_Roadway_Brushing__Clearing___Grubbing.docx

MISSOULA ROADWAY BRUSHING, CLEARING & GRUBBING

PERFORMANCE WORK STATEMENT

This work is being solicited as a performance-based service contract. Performance based means the Contractor is responsible for an end product.

General Specifications The requirements for the selective clearing and grubbing stipulated in the Performance Work Statement (PWS) are listed below. The offeror must have heavy equipment, staff with the training, and experience to successfully execute the work required by BLM.

Selctive Clearing and Grubbing- Clear, grub, and dispose of trees, snags, brush, downed timber, stumps, roots, buried logs, moss, turf, grass, and other vegetation designated to be removed.

1. Level definitions: Level shall be determined on a per mile or per road basis by BLM at time of implementation.

a. Lite- few trees and brush scattered along the shoulders of the Roadway. Production approximately 1000 ft per hour.

b. Medium- trees and brush along the entire length of the roadway. Production rate approximately 750 ft per hour.

c. Heavy- trees and brush scattered throughout the entire roadway. Cost includes grubbing of roadbed. Production rate approximately 400 ft per hour.

2. Implmentation: Cut all brush and trees, at the point of cut, inside the roadside clearing limits and outside the roadbed no higher than 6 inches above ground level. If rocks or other obstructions are encountered, cut no higher than 6 inches above the obstruction. Limb live trees with a diameter larger than 8 inches to a height of 15 feet above the road surface. Grub all stumps within the roadway and ditch. Fill holes with surrounding native material and equipment compact. Clearing Limits as shown on the Plans.

a. Within stream side management zones/ Riparian Habitat Conservation Areas brush only 8 in DBH or less until designated to limb or cut larger trees.

b. In areas where the slash is to great to be (f) scattered within the designated clear limts of the fill slope may have clear limits adjusted instead of (J) removal to designated locations or (k) piling.

3. Disposal of vegetation 203.05: Brush and slash dispose per (a) scattering and (b) piling Non-saw logs shall be property of contractor or disposed by (a) scattering and (b) piling. Sawlog to be (c) decked for optional small sale to contractor Outside of this contract.

(a) Remove from project. Recycle or dispose of material legally off the project. Submit a statement documenting the nature and quantity of material processed or sold for recycling. Otherwise, submit a signed copy of the disposal agreement before disposal begins.

(b) Burn. Government responsible for burning unless otherwise approved.

(c) Bury. Bury debris in trenches or pits in approved areas within the right-of-way when approved. Do not bury debris inside the roadway prism limits, beneath drainage ditches, or in areas subject to freeflowing water.

a. Place debris in alternating layers of 48 inches (1200 millimeters) of debris covered with 24 inches (600 millimeters) of earth material. Distribute stumps, logs, and other large pieces to form a dense mass and minimize air voids. Cover the top layer of buried debris with at least 12 inches (300 millimeters) of compacted earth. Grade and shape the area. Seed and mulch disposal areas on Government property according to Section 625.

(d) (Intentinally left blank)

(e) Windrowing Construction Slash. Place construction slash outside the roadway in neat, compacted windrows approximately parallel to and along the toe line of embankment slopes. Do not permit the top of the windrows to extend above subgrade. Use construction equipment to matt down all material in a windrow to form a compact and uniform pile. Construct breaks of at least 15 feet at least every 200 feet in a windrow. Do not place windrows against trees.

(f) Scattering. Scatter construction slash in designated areas without damaging trees. Limb all logs. Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Limb and scatter other construction slash to reduce slash concentrations. When scattering for erosion control, place construction slash as flat as practicable on the completed slope.

a. Slash shall be bucked to 4' and lopped below 18" both to meet MT slash reduction law and forest insect hazards. Continuous slash mat of more than 12” must be piled for burning by Government. Stumps from 8-in diameter or greater shall be buried outside road prism.

(g) Chipping. Use an approved chipping machine to chip slash longer than 3 feet. Deposit chips on embankment slopes or outside the roadway to a loose depth less than 6 inches. Minor amounts of chips or ground woody material may be permitted within the roadway if they are thoroughly mixed with soil and do not form a layer.

(h) Debris Mat. Use tree limbs, tops, cull logs, split stumps, wood chunks, and other debris to form a mat upon which construction equipment is operated. Place stumps upside down and blend stumps into the mat.

(i) Decking. Remove brush from designated log deck areas. Limb and top logs.

Logs not meeting the Utilization Standards described in Subsection 201.04(c) or 202.04(c) shall be cut to minimum lengths 16.5 feet and decked in designated log deck location.

Merchantable timber not associated with an existing timber sale shall be cut to length meeting the Utilization Standards described in Subsection 201.04(c) or 202.04(c).

Deck logs so that logs are piled parallel to one another; can be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Keep logs in log decks free of brush and soil.

a. Sawlog- Saw‐log quality consists of the following material: those trees not reserved that are 8 inches diameter at breast height outside bark (dbhob) or greater with a minimum length of 16.5 feet to a minimum top end diameter of 5.6 inches diameter inside bark (dib) and a minimum of 1/3 sound wood.

b. Non-Sawlog- are contractors’ property to remove from site or dispose by (f) Scattering and (k) piling

(j) Removal to designated locations. Remove construction slash to designated locations.

(k) Piling. Prep area and pile construction slash in designated areas. Place and construct piles so that if the piles are burned, the burning will not damage remaining trees. Keep piles free of dirt from stumps.

4. Public Safety: Contractor will provide for public safety by closing road as approved by BLM and/or by signing and traffic control per MUTCD.

Scope of Contract

The performance-based services covered in this contract are for the furnishing of all labor, equipment, supervision, transportation, operating supplies, and incidentals necessary to perform road clearing and grubbing in compliance with the terms, specifications, conditions, and provisions of this solicitation.

Location and Description

The machine Clearing and Grubbing to be accomplished under this contract is located within the Missoula Field Office of the Western Montana District of the BLM. The locations of the roads will be identified at the beginning of each award year and modified as needed by the BLM. The roads will be staked using painted wood laths with the road and section number printed on them and via georeferenced PDF maps for use in Avenza or other electronic GPS mapping apps. Or as agreed with the contractor in advance. Trees larger than 8” to be retained will be designated by paint mark or as agreed.

A typical drawing showing the clearing limits concerning the roads to be brushed is shown in the Exhibits of this solicitation.

Acceptance See quality assurance plan.

Measurement and Payment The accepted quantities will be paid at the contract price per unit of measurement for the pay items listed in the bid schedule. Payment will be full compensation for the work prescribed.