Specifications_Big_Basin_Spur_Road_Obliteration.pdf

BIG BASIN SPURS ROAD DECOMMISSIONING

FOREST SERVICE SPECIFICATIONS

Table of Contents

Definitions Responsibilities of the Contractor Measurement and Payment Item 1 - Mobilization Item 2 Roadway Obliteration Item 3 – Rental Equipment

Definitions

Definitions. The following definitions apply to this contract:

Project Limits — The limits on each side of the project that establish the area disturbed by operations and beyond which no disturbance is permitted. The project limits are from the toe of the fill slope to the top of the cut slope.

Contract — The written agreement between the Government and the Contractor setting forth the obligations of the parties for the performance of and payment for the prescribed work.

Contracting Officer (CO) — An official of the Government with the authority to enter into, administer, and terminate contracts and make related determinations and findings. The term includes certain authorized representatives of the CO acting within the limits of their authority as delegated by the CO.

Free Draining — A slope that will drain water without pooling or causing erosion of the slope.

Material — Any substances specified or necessary to satisfactorily complete the contract work.

Measurement — The process of identifying the dimensions, quantity, or capacity of an item.

Pay Item — A specific item of work for which a unit and price is provided in the contract.

Plans/Drawings — The contract plans and drawings furnished by the Government showing the location, type, dimensions, and details of the work.

Schedule of Items--A schedule in the contract that contains a listing and description of work items, quantities, units of measure, methods of measurement, unit price, and amount.

Slope notation (vertical: horizontal). For slopes flatter than 1V:1H, express the slope as the ratio of one unit vertical to a number of units horizontal. For slopes steeper than 1V:1H, express the slope as the ratio of a number of units vertical to one unit horizontal. Slopes can be expressed as percentages.

Specifications — The written requirements for performing work.

Work — The furnishing of all labor, material, equipment, and other incidentals necessary to successfully complete the project according to the contract.

Figure 1: Road Template Definitions

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Clearing Limit

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Responsibilities of the Contractor

Intent of Contract The intent of the contract is to provide for the completion of the work described. The precise details of performing the work are not stipulated except as considered essential for the successful completion of the work. Furnish all labor, material, equipment, tools, transportation, and supplies necessary to complete the work according to the contract.

Laws to be Observed Comply with all permits and agreements obtained by the Government for performing the work that is included in the contract. Obtain all additional permits or agreements and modifications to Government-obtained permits or agreements that are required by the Contractor's methods of operation. Furnish copies of all permits and agreements.

Comply with all legal load restrictions when hauling material and equipment on public roads to and from the project. A special permit does not relieve the Contractor of liability for damage resulting from the moving of material or equipment.

The contractor shall be responsible for all damages to persons or properties that occur as a result of the contractor’s fault or negligence.

Contractor's Responsibility for Work Assume responsibility for all work until final acceptance. This includes periods of suspended work.

Protect the work against injury, loss, or damage from all causes whether arising from the execution or non-execution of the work.

Rebuild, repair, restore, and make good all losses, injuries, or damages to any portion of the work.

This includes losses, injuries, or damages caused by vandalism, theft, accommodation of public traffic, and weather that occurs during the contract.

The Government will only be responsible for losses, injuries, and damages to work put in place that was caused by declared enemies and terrorists of the Government and cataclysmic natural phenomenon such as tornadoes, earthquakes, major floods, and other officially declared natural disasters. The Government will only be responsible for costs attributable to repairing or replacing damaged work. The Government will not be responsible for delay costs, impact costs, or extended overhead costs.

Material and Workmanship All equipment, material, and articles incorporated into the work covered by this contract shall be new and of the most suitable grade for the purpose intended, unless otherwise specifically provided in this contract. All material and articles that do not require prior approval shall be used at the risk of subsequent rejection if the material does not meet the specification in this contract.

All work under this contract shall be performed in a skillful and workmanlike manner. The CO may require, in writing, that the contractor remove from the work any employee the CO deems incompetent, careless, or otherwise objectionable.

Protection and Restoration of Property and Landscape Preserve public and private property, and protect monuments established for the purpose of perpetuating horizontal, vertical, cadastral, or boundary control. When necessary to destroy a monument, reestablish the monument according to applicable state statute or by the direction of the agency or individual who established the monument.

Do not excavate, remove, damage, alter, or deface any archeological or paleontological remains or specimens. Control the actions of employees and subcontractors on the project to ensure that protected sites are not disturbed or damaged. Should any of these items be encountered, suspend operations at the discovery site, notify the CO, and continue operations in other areas. The CO will inform the Contractor when operations may resume at the discovery site.

Work during wet conditions shall cease if rutting and erosion cannot be controlled on roads used for access by the contractor. Prior to leaving the site, any rutted areas and other damaged areas shall be smoothed, sloped and graded to drain, and all erosion control features required under this contract shall be in place and functional for access roads.

Sanitation, Health, and Safety Observe rules and regulations of Federal, State, and local health officials. The contractor shall provide and maintain work environments and procedures which will safeguard the public and Government personnel, property, materials, supplies, and equipment exposed to contractor operations and activities. Do not permit any worker to work in surroundings or under conditions that are unsanitary, hazardous, or dangerous.

Admit any OSHA inspector or other legally responsible official involved in safety and health administration to the project work site upon presentation of proper credentials.

Report accidents on forms furnished by the Government or, with prior approval, on forms used to report accidents to other agencies or insurance carriers. Maintain a "Log of Work Related Injuries and Illnesses," OSHA Form 300, and make it available for inspection.

Install a reverse signal alarm audible above the surrounding noise level on all motorized vehicles having an obstructed view and on all earth-moving and compaction equipment.

Measurement and Payment

Measurement of Work Take and record measurements and perform calculations to determine pay quantities for invoicing for work performed. Take or convert all measurements of work according to United States customary measure.

Unless otherwise specified, measure when the work is in place, complete, and accepted. Measure the actual work performed within the project limits.

Submit measurement notes bi-weekly to the CO for approval and payment. For lump sum items submit documentation to support invoiced progress payment. When work is not complete, identify the measurement as being an interim measurement. Submit the final measurement when all work completed.

Measurement Terms and Definitions.

The Measurement Subsection of each Section of work designates the type of measurement for the work. The Schedule of Items relates the type of measurement and the estimated quantity of work.

The following defines the terms used:

(a) Acre. 43,560 square feet. Make longitudinal and transverse measurements for area computations horizontally unless specified on the ground surface.

(b) Each. One entire unit. The quantity is the actual number of units completed and accepted.

(c) Cubic yard. Compute the quantity using the average end areas multiplied by the horizontal distance along a centerline or reference line between the end areas. Deduct any quantity outside the designed or staked limits.

(d) Linear foot. As applicable, measure the work along its length from end-to-end; parallel to the base or foundation; along the top; along the front face; or along the invert. Do not measure overlaps.

(e) Hour. Measure the actual number of hours ordered by the CO and performed by the Contractor.

(f) Lump sum. Do not measure directly. The bid amount is complete payment for all work described in the contract necessary to complete the work for that item. The quantity is designated as "All."

(g) Mile. 5,280 linear feet. Measure horizontally along the centerline of each roadway.

Scope of Payment. Payment for all contract work is provided, either directly or indirectly, under the pay items shown in the schedule of items.

(a) Direct payment. Payment is provided directly under a pay item shown in the schedule of items.

(b) Indirect payment. Work for which direct payment is not provided is a subsidiary obligation of the Contractor. Payment for such work is indirectly included under other pay items shown in the schedule of items.

Work measured and paid for under one pay item will not be paid for under any other pay item.

All quantities shown in the contract are approximate unless otherwise stated in that section. Limit pay quantities to the quantities staked, ordered, or otherwise authorized before performing the work.

Payment will be made for the actual quantities of work performed and accepted or material furnished according to the contract. No payment will be made for work performed in excess of that staked, ordered, or non-authorized.

Item 1 - Mobilization

Description This work consists of moving personnel, equipment, material, and incidentals to the project and performing all work necessary before beginning work at the project site. Mobilization includes the obtaining of permits, insurance, and bonds.

All temporary or portable signs shall be included as a subsidiary item. Signs and sign placement shall meet the requirements of the Section H of this contract and the “2009 MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES” (MUTCD). Work on the project shall not be started until all required signs are in place and approved by the CO.

Removal and replacement of road closure devices such as concrete barriers or earth barriers to gain access to the project shall be included as incidental to Mobilization.

Work also includes cleaning of all equipment used at the project site. Clean all equipment prior to entry on the project site. Remove all dirt, plant parts and material that may carry noxious weed seeds into the area. Only equipment inspected by the Forest Service will be allowed to operate within the project area. The contractor shall give the Forest Service at least 24 hours advance notification when equipment is ready for inspection. Treat subsequent move-ins of equipment the same as the initial move-in. Clean truck beds and dump boxes hauling to the project site prior to entering the work area.

Measurement Measure mobilization as a Lump Sum Quantity.

Payment The accepted quantity, measured as provided in the Measurement and Payment Section, will be paid at the contract price per unit of measurement for Mobilization pay item shown in the schedule of items. Payment will be full compensation for the work prescribed in this Section.

Progress payments for mobilization lump sum will be paid as follows:

(1) When 10 percent of the original contract amount is earned from other bid items, 50 percent of the mobilization item, or 5 percent of the original contract amount, whichever is less, may be paid.

(2) When 50 percent of the original contract amount is earned from other bid items, 100 percent of the mobilization item, or 10 percent of the original contract amount, whichever is less, may be paid.

Any portion of the mobilization item in excess of 10 percent of the original contract amount will be paid after final acceptance.

Item 2 Roadway Obliteration

Description This work consists of the reclamation of roadways by the removal of culverts; decompaction and out sloping of subgrade and ground surface; installation of water bars and leadoff ditches; restoration of stream channels; seeding; and clump plantings of all disturbed areas. In addition work includes diverting of live streams, pumping, bailing, draining, sheeting, bracing, and other miscellaneous items required for execution of the work.

Roadway reclamation methods are designated as follows:

(a) Method 1. Obliterate the roadway by restoring to approximate original ground contours.

Decompact road surfaces. Remove all pipes, bridges, and other structures and all associated fill material, down to “natural ground” or as shown on the drawings. Keep excavated material within the original roadway project limits. Finish slopes to provide gradual transitions in slope adjustments without noticeable breaks. Effectively close access to area by re-contouring or placement of slash.

Work Requirements Conform to the following when obliterating roads by all methods. Follow guidelines above for each method. Not all work is required for all methods of obliteration.

EXCAVATION: After required decompaction of the roadway the fill material shall be pulled up and placed on roadbed between the top of cut and original ground forming a slope approximating natural contours or as designated by method. No ditches, water traps, or berms shall remain.

Finish to the lines shown on the plans blending to the surrounding terrain.

DECOMPACTION: Any hardened road segment or surface area shall be de-compacted to promote water infiltration and establish vegetation. This work shall consist of loosening all of the soil in the existing roadbed or landing surface to a depth of 18 inches and a clod size no larger than 10 inches or as shown on the plans.

OUTSLOPING: Roads and landings shall be outsloped by decompacting the surface as specified above and by pulling the fill shoulder towards the cut bank as shown in the plans. Excavated material shall be spread over the roadbed or landing. The finished grade shall be a sloping surface across the existing roadway to the grade specified by method and shall be a free draining. Any existing ditches at the toe of the cut slope shall be ripped and filled with the material excavated during out sloping. Any berms remaining along the upper or lower edges of this work shall be blended with the surrounding terrain. All other berms, tracks, and other surface irregularities shall be reshaped to allow a free draining surface.

REMOVAL OF STRUCTURES: Remove all drainage structures (culverts, downpipe, anchors, drop inlets, and trash racks, log culverts etc.). Remove all existing gates and barriers on the project road also. All items removed, except log culverts, shall become the property of the contractor and be removed from government land and recycled or disposed of in a legal manner.

The material or structure designated for removal shall include it and all of its appurtenances and hardware. Material from log drainage structures can be used as slash placement on re-contoured roadway outside of channels.

VEGETATION REMOVAL: This work shall consist of clearing, grubbing, removing and disposing of vegetation. Vegetation includes dead woody debris, trees, stumps, roots and other vegetation within the limits of the project area necessary to be cleared for access to the project sites, covering areas designated for excavation or embankment, and woody material generated from excavations. Vegetation shall be preserved and placed on top of re-contoured road segments and completed channel side slopes in stable positions not interfering with stream channel flow. The disturbed area shall be 40% to 60% covered with natural slash when available from roadway. Excess material will be windrowed along the bottom edge of the original roadway project limits with breaks for game passage every 200’ or it shall be stacked in piles at sites designated by the CO. A walkable trail shall be left along the upper edge. Disturbed vegetation shall not be left "hung-up" in remaining live vegetation.

CLUMP VEGETATION PLACEMENT: Transplant clumps of available vegetation and associated soil from the clearing limits to the top of the re-contoured road or landing surface at a minimum of 10 clump plants per 100 lineal feet. This will be accomplished with an excavator to obtain an intact, bucket-sized clump containing the aboveground vegetation, forest floor, associated root system and adequate soil to support growth and soil restoration. Vegetation in clumps can include a mix of shrubs, grasses, and forbs, depending on availability at the site.

Placement shall assure contact of root mass and soil in the clump with the re-contoured road surface to promote growth.

DUFF PLACEMENT: Duff material shall be scraped from above the top of the cut slope and scattered along the completed re-contoured road. This duff material may consist of a combination of needles, organic material, plants, decomposing stumps and logs. A minimum of 10 scrapings shall be done per 100 linear feet of obliteration.

SEEDING: No seeding required on this project.

Drainage, Channels and Grade Controls.

Follow these specifications for all methods as shown in the drawings, when noted on the work lists, or directed by the CO.

STREAM GRADE CHANNELS (SGC): These are either live stream channels or draw crossings. Removal of all fill material and re-contouring to the original natural contours is required.

A pipe will be required for crossing live streams while accessing the project. If there is no existing culvert a temporary one will be required before proceeding.

Stream Diversions or dewatering is required while work is being done in the channel. These may be done with pipes, open ditches or check dams. The intent is to minimize the amount of erosion during work.

Place a temporary sediment dam in-stream below all work using slash/brush barriers or straw bales. Place material in channel below high water, creating a tight fit. After channel restoration, remove trapped sediment from stream and place above high water.

All stream grade channels will require a minimum of two grade controls made from local rock and logs. Longer stream grade channels may require more grade controls, using a 20’ maximum spacing. These are usually formed with rocks as shown on the plans. Logs may be substituted as long as shape and elevation, similar to those shown in plans for rock structures, can be maintained.

Channel side-slopes shall be stabilized with slash and clump vegetation placement. Along the banks adjacent to the recontoured channel; clump plant vegetation at a minimum of 5 plantings per stream grade channel. See the CLUMP VEGETATION PLACEMENT section for more description of work. Additional plantings may be required by the CO and will be paid with Item 622 Hourly Excavator, if Stream Grade Channel length exceeds 40 feet.

No material will be placed in the channel bottom that would divert stream and cause erosion.

GRADE CONTROLS: Place local rock and wood to form Grade Controls at live water crossings as shown on the drawings. Place as directed above and when noted on the work lists or as directed by the CO.

CROSS DRAIN CHANNELS (CDC): These are areas where seeps in the cut slope or road surface are evident or noted. Remove the fill material below the slope but do not place the excavated material in seep or spring. Create a channel to provide drainage onto natural ground as shown on the drawings. The slope of the banks shall be a minimum of 1:3. Transplant vegetation mats from adjacent areas into the CDC and place in strips perpendicular to the CDC flow path at 4-8’ spacing to encourage water percolation and subsurface flow.

Vegetation mats consist of transplanted vegetation collected in long strips with the excavator bucket from nearby wetlands, ditch lines or adjacent forest. These encourage percolation and subsurface flow. Vegetation mats are similar to clump plants and shall contain the aboveground vegetation, forest floor, associated root system and adequate soil to support growth and soil restoration. Wetland plants are preferred for vegetation mats, but if not available at the site, utilize other available plants including grasses, forbs, and shrubs. Placement shall assure contact of root mass and soil in the vegetation mat with the bottom of the CDC to promote growth.

DRAINAGE EXCAVATION: Drainage excavation shall include the removal of all fill and bedding material, the restoration of the natural channel and blending of side slopes. Dry draw, channel, or swale width and dimensions after drainage structures have been removed shall be the same as the undisturbed width and dimensions above or below the crossing. An approximately uniform grade shall be created from natural ground above the inlet to natural ground below the outlet to facilitate a free draining channel for the entire length unless otherwise noted on the work lists. Excavated material shall be incorporated in the adjacent areas while maintaining “natural slopes”. If live water is encountered a stream grade channel or a cross drain channel is needed.

REMOVAL OF RELIEF CULVERTS: In places where dry ditch relief culverts are to be removed, re-contour the roadway according to obliteration method.

Soil Erosion Control.

This work consists of furnishing, placing, and maintaining permanent and temporary erosion and sediment control measures to minimize erosion and sedimentation during and after work according to the contract permits and this Section.

Temporary erosion control measures shall be in place at the end of each day’s operation. All permanent erosion control measures shall be in place within 5 days following completion of earthwork at the location.

No more than one feature shall be cleared of established vegetation, with disturbed soil exposed, at a time for each excavator on the project, except for the situation described at the end of this paragraph. One feature is defined as one road. The exception to the limitation of one feature exposed at a time would occur when a series of features are linked together, and all preceding features would need to be cleared to access the feature at the end of the linked features.

Work during wet conditions shall cease if rutting and erosion cannot be controlled. Prior to leaving the site, any rutted areas and other damaged areas shall be smoothed, sloped and graded to drain, and all erosion control features required under this contract shall be in place and functional. When working adjacent to live water or streams a buffer of vegetation, a brush barrier, or straw dike will be maintained to prevent direct sedimentation to the stream.

Store and handle material to preserve its quality and fitness for the work. The Contractor is responsible for the security of all stored material.

Use straw bales and brush barriers for filtering sediment from runoff and reducing the velocity of sheet flow. Conserve brush from clearing operations to form brush barriers.

Maintain temporary erosion control measures in working condition until the project is complete.

Restore the ground to its natural or intended condition and provide permanent erosion control measures when temporary measures are no longer needed. Clean erosion control measures when half full of sediment. As work in the area is completed the bales shall be broken and the straw spread as a mulch.

Soil erosion control measures will be evaluated by visual inspection of the work for compliance with the contract. Contractor must provide certification of weed free materials. Work may be rejected at any time if it does not to comply with the contract.

Acceptance Roadway obliteration will be evaluated based on visual inspection of the work for compliance with the contract. Work may be rejected at any time if it does not comply with the contract.

Measurement and Payment Measure and payment of Roadway Obliteration is by the Mile of completed and accepted roadway obliteration to the nearest 1/100 mile. Payment will be full compensation for the work prescribed in this Section.

Item 3 – Rental Equipment

Description This work consists of furnishing and operating equipment for work ordered by the CO not otherwise provided for under the contract

Rental Equipment

Hydraulic Excavator with Thumb: Provide a track mounted hydraulic Excavator with operator, 1990 model year or newer. Bucket must be equipped with a hydraulic “thumb”. An excavator of a size equivalent to a CAT 320 is required for the project. Contractor shall get approval for use of each excavator from the CO prior to any work taking place.

Make equipment available for inspection and approval before use. Furnish and operate equipment with such auxiliary attachments, oilers, etc., as are usually needed for efficient operation of the equipment. Keep the equipment in good repair and capable of operating 90 percent of the working time.

Obtain approval of the length of workday and workweek before beginning work. Keep daily records of the number of unit-hours of operation. Submit the records to CO.

Acceptance

Rental Equipment work will be evaluated based on visual inspection of the work for compliance with the contract. Work may be rejected at any time if it does not comply with the contract.

Measurement

Measure the Rental Equipment by the hour of work performed.

Round portions of an hour up to the next half hour. Measure time in excess of 40 hours per week at the same rate as the first 40 hours.

Do not measure time for moving equipment between project work sites. Do not measure non-operable equipment or equipment dependent upon another piece of non-operable equipment.

Payment

Only quantities approved by the CO shall be accepted under this contact. The accepted quantities will be paid at the contract price unit of measurement for the Rental Equipment pay item listed in the schedule of items.