Attach_01_Supplemental_Specifications_Rd_Maint.pdf

ATTACH 01

FY16 North San Isabel NF Road Maintenance Page 1 of 7

SUPPLEMENTAL SPECIFICATIONS

151- MOBILIZATION

DESCRIPTION

151.01 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.

MEASUREMENT

151.02 The bid amount is complete payment for all work described in the contract and necessary to complete the work for that item. The quantity is designated as "All." Payment

PAYMENT

151.03 The accepted quantities will be paid for at the contract unit price for each pay item shown in the SCHEDULE OF ITEMS.

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

(a) Bond premiums will be reimbursed according to FAR Clause 52.232-5 Payments Under

Fixed-Price Construction Contracts, after receipt of the evidence of payment.

(b) When 5 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, will be paid.

(c) When 10 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, will be paid.

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

Payment will be made under:

Pay Item Pay Unit

151(01) Mobilization L.S.

171- WEED AND DISEASE PREVENTION

171.01 This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before the equipment is used on National Forest

System lands.

MATERIAL

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171.02 Furnish water that is free of substances injurious to plant life such as oils, acids, alkalis, or salts.

WORK REQUIREMENTS

171.03 General

Notify the CO in writing at least 15 days before moving any construction equipment onto

National Forest System lands. Construction equipment does not include cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas outside of

National Forest System lands.

Perform all work at a location designated on the plans or other locations approved in writing.

Provide the CO with an opportunity to monitor the washing and inspection.

171.04 Equipment

For work on National Forest System lands, use a washing system that traps all wash water and either stores it for removal from National Forest System lands or recycles the water for continued use. If the equipment recycles the water, provide adequate filters for seed removal.

Dispose of the filter material and removed seeds in an approved manner. Do not mix soaps, detergents, or other chemicals with the wash water. For work at a commercial washing facility, use an approved facility. Use a high pressure washing system.

171.05 Washing

Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment.

171.06 Inspection

Inspect the washed construction equipment, including the undercarriage, to ensure that the washing removed the dirt, debris, and seeds from the construction equipment. Rewash the construction equipment as necessary or as directed.

171.07 Acceptance

Weed prevention will be evaluated under Subsection 106.02 of the Standard Specifications for

Construction of Roads and Bridges on Federal Highway Projects (FP-03)

850- LEVEL 2 ROAD MAINTENANCE

850.01 The maintenance work to be performed shall include work necessary to keep drainage functional, correction of safety problems, and maintenance of the road prism to provide passage of high clearance vehicles.

850.02 Drainage

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This work shall consist of cleaning culverts, drainage dips and related items such as catch basins, outlet ditches, lead-off ditches, trash racks, drop inlets, headwalls, aprons, and existing riprap.

Drainage structures and related items shall be cleared of all foreign material and all vegetative growth which interferes with the flow pattern. Grass shall be left in place provided drainage is not obstructed.

Culverts shall have their inlet and outlet cleaned as well as three (3) feet of the upper and lower ends of the inside cleaned out to expose the full diameter of the culvert. If debris is lodged in the culvert to the extent it cannot be cleaned by shovel, bar, and hand labor, the CO shall be notified of the location within 5 working days for a final determination of corrective measures to be taken.

Unless otherwise SHOWN ON THE DRAWINGS, catch basins shall be cleared of material to the bottom of the invert of the culvert and at least eighteen (18) inches horizontally towards the backslope or the width of the basin, whichever is greater. The backslope shall be cleaned of loose material.

Inlet channel transition from the ditchline to the catch basin shall be cleaned. Material removed, if suitable, may be blended into existing native road surfaces or shoulders. On aggregate surfaced roads, care must be taken to assure the material is not mixed into the existing aggregate.

Unsuitable material shall be disposed of by sidecasting unless otherwise SHOWN ON THE

DRAWINGS. Sidecasting into streams, lakes or water courses will not be permitted.

Ditches shall be cleaned to conform to previous line, grade, and cross section. Cleaning is not required on ditches that provide drainage and are free of debris larger than three (3) inches in diameter and one (1) foot in length.

Drainage dips to be cleaned or installed shall be shaped to a depth and width to provide drainage in reasonable conformity to the original lines, grades and cross section, unless otherwise

SHOWN ON THE DRAWINGS or designated on the ground. Hand work may be necessary to obtain a smooth surface and uniform cross section. Lead-off ditches shall be cleaned or installed and shall daylight. Material generated from the lead-off ditches shall be removed and blended into existing native road surfaces or shoulders. On aggregate surfaced roads, care must be taken to assure the material is not mixed into the existing aggregate. Unsuitable material shall be disposed of by sidecasting unless otherwise SHOWN ON THE DRAWINGS.

850.03 Removal of Obstructions

Unless otherwise SHOWN ON THE DRAWINGS, logs and downed trees, stumps, and loose rocks which extended more than four (4) inches above the road surface shall be removed or repositioned to provide adequate clearance for vehicular travel. Logs and downed trees shall be removed from the top of cut to toe of fill. Logs and downed trees shall be cut into short lengths and placed outside the roadway. Slash shall be scattered outside the roadway and drainage ways.

Rocks and other objects outside the usable width may remain, if drainage is not obstructed.

850.04 Removal of Vegetation

Unless otherwise SHOWN ON THE DRAWINGS, brush, trees, and limbs shall be removed to provide a twelve (12) foot traveled way. The Vegetation traveled way shall be free of encroaching limbs to a height of ten (10) feet above the traveled way surface.

Brush and trees growing within the traveled way shall be cut parallel to and within two (2) inches of the ground surface.

Slash shall be scattered outside the roadway and drainage ways. Concentrations of slash and debris greater than eighteen (18) inches above the ground will not be permitted.

Slash and debris shall not be placed in live streams.

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850.05 Sloughs, Slumps, and Slides

Minor sloughs, slides and slumps that are less than five (5) cubic yards per one-hundred (100) foot station, shall be removed or repaired. If quantity exceeds five (5) cubic yards per one-hundred (100) foot station, the CO shall be notified of the location within 5 working days for a final determination of corrective measures to be taken. Minor slough material, including soil, rock, and vegetative matter which encroaches onto the ditches, roadway or shoulder and which obstructs drainage shall be disposed of by sidecasting unless otherwise SHOWN ON THE

DRAWINGS. Sidecasting into streams, lakes or water courses will not be permitted.

Minor slumps and washouts, shall be filled with material generated from the adjacent area or as otherwise SHOWN ON THE DRAWINGS. Material shall be placed in layers not to exceed eight (8) inches in depth and compacted by operating equipment over each layer.

850.06 Traveled way

Traveled way maintenance shall include shaping the surface and shoulders to provide drainage and accommodate high clearance vehicles. Ruts and washouts that prevent normal road surface runoff and have potential to further damage the road or adjacent resource shall be repaired. Ruts and washouts that impede vehicular travel by high clearance vehicles shall be repaired.

Materials for filling the ruts shall be generated from the roadway or otherwise SHOWN ON THE

DRAWINGS. Material shall be placed in layers and compacted by operating equipment over the full width of each layer.

850.07 Level 2 Road Maintenance will be measured to the nearest one-tenth (0.1) mile as measured by a calibrated vehicle distance measuring device along the road centerline.

850.08 The actual quantities will be paid for at the contract unit price for each pay item shown in the

SCHEDULE OF ITEMS.

850 (01) Level 2 Road Maintenance Mile

860- LEVEL 3 ROAD MAINTENANCE

860.01 The maintenance work to be performed shall include work necessary to keep drainage functional and maintain the road prism to allow a prudent driver to safely negotiate the road in a passenger car.

860.02 Drainage

This work shall consist of cleaning culverts and drainage dips and related items such as catch basins, outlet ditches, lead-off ditches, trash racks, drop inlets, headwalls, aprons, and riprap.

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Drainage structures and related items shall be cleared of all foreign material and all vegetative growth which interferes with the flow pattern. Grass shall be left in place provided drainage is not obstructed.

Culverts shall have their inlet and outlet cleaned as well as three (3) feet of the upper and lower ends of the inside cleaned out to expose the full diameter of the culvert. If debris is lodged in the culvert to the extent it cannot be cleaned by shovel, bar, and hand labor, the CO shall be notified of the location within 5 working days for a final determination of corrective measures to be taken.

Unless otherwise SHOWN ON THE DRAWINGS, catch basins shall be cleared of material to the bottom of the invert of the culvert and at least eighteen (18) inches horizontally towards the backslope or the width of the basin, whichever is greater. The backslope shall be cleaned of loose material.

Inlet channel transition from the ditchline to the catch basin shall be cleaned. Material removed, if suitable, may be blended into existing native road surfaces or shoulders. On aggregate surfaced roads, care must be taken to assure the material is not mixed into the existing aggregate. Unsuitable material shall be disposed of by sidecasting unless otherwise

SHOWN ON THE DRAWINGS. Sidecasting into streams, lakes or water courses will not be permitted.

Ditches shall be cleaned to conform to previous line, grade, and cross section. Cleaning is not required on ditches that provide drainage and are free of debris larger than three (3) inches in diameter and one (1) foot in length. On aggregate surfaced roads, care must be taken to assure the material is not mixed into the existing aggregate. Unsuitable material shall be disposed of by sidecasting unless otherwise SHOWN ON THE DRAWINGS.

Drainage dip maintenance consists of cleaning and installing dips. Drainage dips shall be shaped to a depth and width to provide drainage and reasonable conformity to the original lines, grades, and cross sections, unless otherwise SHOWN ON THE DRAWINGS or designated on the ground. Hand work may be necessary to obtain a smooth surface and uniform cross section. Lead-off ditches shall be cleaned or installed and shall daylight.

Material generated from the lead-off ditches shall be blended into existing road surfaces or shoulders. On aggregate surfaced roads, care must be taken to assure the Material is not mixed into the existing aggregate. Unsuitable material shall be disposed of by sidecasting unless otherwise SHOWN ON THE DRAWINGS.

860.03 Removal of Obstructions

Unless otherwise SHOWN ON THE DRAWINGS, loose rocks which extends more than three

(3) inches above the road surface shall be removed or repositioned to provide adequate clearance for vehicular travel. Logs and downed trees shall be cut over the entire width of the traveled way to provide opening for vehicular travel. Logs and downed trees shall be cut into short lengths and placed outside the roadway. Slash shall be scattered outside the roadway and drainage ways. Rocks and other objects outside the usable width may remain, if drainage is not obstructed.

860.04 Removal of Vegetation

Brush, Trees, and limbs shall be removed within the designated area SHOWN ON THE

DRAWINGS or designated on the ground to provide unobstructed roadway prism, including turnouts, ditches, and other drainage facilities. The traveled way shall be free of encroaching limbs to a height of 12 feet above the traveled way surface.

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Unless otherwise SHOWN ON THE DRAWINGS, brush and trees less than four (4) inches in diameter within the designated area adjacent to the traveled way shall be cut to a maximum height of six (6) inches above the ground surface or obstructions such as rocks or stumps.

Trees within the designated area in excess of four (4) inches in diameter when measured six (6) inches above the ground shall be limbed so that no limb extends into the designated area or over the roadbed. Tree limbs shall be trimmed as near flush with the trunk as practicable.

Brush and trees designated for removal within the designated traveled way shall be cut parallel and as close to the ground as practicable or to a maximum of one (1) inch above the elevation of the road surface. Vegetation shall be cut over the entire width of the traveled way or to the maximum width SHOWN ON THE DRAWINGS, or as designated on the ground.

Signs, markers, and other road appurtenances are designated to be retained.

Work may be performed by hand or mechanically. Self-propelled equipment shall not be allowed on cut and fill slopes or in ditches unless otherwise SHOWN ON THE DRAWINGS.

Any damage to trunks of standing trees caused by Contractor's operation shall be treated with a commercial nursery sealer or removed as designated by the CO.

Limbs, chunks, and debris in excess of one (1) foot in length or three (3) inches in diameter shall be scattered outside the roadway. Concentrations of slash and debris greater than eighteen (18) inches above the ground will not be permitted.

Slash and debris shall not be placed in live streams.

860.05 Sloughs, Slides and Slumps

Minor sloughs, slides, and slumps that are less than five (5) cubic yards per one-hundred (100) foot station, shall be removed or repaired. If quantity exceeds five (5) cubic yards per one-hundred (100) foot station, the CO shall be notified of the location within 5 working days for a final determination of corrective measures to be taken. Minor slough and slide material, including soil, rock, and vegetative matter which encroaches onto the ditches, roadway or shoulder and which obstructs drainage shall be disposed of by sidecasting unless otherwise

SHOWN ON THE DRAWINGS. Sidecasting into streams, lake or water courses will not be permitted.

Minor slumps and washouts shall be filled with material generated from the adjacent area or as otherwise SHOWN ON THE DRAWINGS. Material shall be placed in layers not to exceed eight (8) inches in depth and compacted by operating equipment over each layer.

860.06 Traveled way

The roadbed shall be crowned or sloped to conform to the original prism. All berms generated shall be removed from the shoulders and incorporated into the traveled way surface except those that are specifically designated to remain. Turnouts shall also be included with the blading of the road surface.

On roads open to public traffic, berms of materials caused by road maintenance operations shall be removed from the traveled way prior to the end of each day's work.

The blading shall proceed in an orderly fashion by successive passes with graders parallel to the road centerline, progressing from the lower side to the upper side of the roadbed and back across. In the process, shoulder material shall be cut and replaced to prevent vegetation encroachment.

On native surface roads, all ruts, holes, washes and washboards shall be removed by scarifying or cutting to the bottom of such defects. Fines accumulated in blading roads or from drainage ditches shall not be wasted over fill shoulders.

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On aggregate surface roads, all ruts, holes, washes and washboards shall be removed by scarifying or cutting to the bottom of the aggregate surface. Scarification of subgrade material will not be permitted unless SHOWN ON THE DRAWINGS.

Rocks or other material remaining on the traveled way after the final blading that fail to pass a

4-inch sieve or are larger than the maximum size of imported surfacing shall be disposed of by sidecasting unless otherwise SHOWN ON THE DRAWINGS. Sidecasting into streams, lakes or water courses will not be permitted.

The roadbed immediately before and after cattleguards and bridges shall be bladed in such a manner as to effect a smooth transition. Material shall not be deposited inside cattleguards or onto bridges. Any material deposited on bridge decks or inside cattleguards, including any accumulated material, shall be removed.

Intersecting roads shall be bladed for a distance of 50 feet to assure proper transition of the two riding surfaces.

860.07 Level 3 Road Maintenance will be measured to the nearest one-tenth (0.1) mile as measured by a calibrated vehicle distance measuring device along the road centerline.

860.08 The actual quantities will be paid for at the contract unit price for each pay item shown in the

SCHEDULE OF ITEMS.

860 (01) Level 3 Road Maintenance Mile