Road Mtc Specs modified level 3 road maintenance.doc

EXHIBIT A

860 – LEVEL 3 ROAD MAINTENANCE

DESCRIPTION

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.

WORK REQUIREMENTS

860.02 This work shall consist of reconstructing drainage structures Drainage such as drainage dips, road side ditches, and lead-off ditches.

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.

Ditches shall be cleaned to allow for positive water flow. Cleaning is not required on ditches that provide drainage and are free of debris larger than (3) inches in diameter and (1) foot in length.

Drainage dip maintenance consists of reconstructing existing dips to allow the water to flow off the roadway down the associated lead-off ditch. The mound shall be reconstructed to keep water from running over the top and to provide a smooth transition to the roadway. This smooth transition shall allow stock trailers to pass without digging into the mound.

Lead-off ditches shall be cleaned for a distance of ten (10) feet downstream from the drainage dip. Material removed may be blended onto adjacent grounds provided it doesn’t damage nearby trees or fences.

860.03 Loose rocks which extend more than four (4) inches above the road Removal of surface shall be removed to provide adequate clearance for vehicular obstructions travel. These rocks may be placed outside the roadway limits and not interfere with drainage patterns.

860.04 Signs, route markers and other roadside appurtenances shall be

Misc.

protected during maintenance operations.

Any damage to trunks of standing trees caused by Contractor’s operation shall be treated with a commercial nursery sealer approved by the engineer.

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

Minor sloughs, slides, and slumps that are less than 5 cubic yards per 100’

Slumps, station, shall be removed or repaired. Minor slough and slide material

Sloughs, including soil, rock, and vegetative matter which encroaches onto the and Slides ditches, roadway or shoulder and which obstruct drainage patterns 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 reported to the Forest Service as soon as possible. Treatments may include repairing the slumps or washouts with material generated from the adjacent area. Material shall be placed in layers not to exceed (8) inches in depth and compacted by operating equipment over each layer.

860.06

The roadbed shall be crowned or sloped to allow for water drainage.

Traveled All berms shall be removed from the shoulders to the maximum extent

Way possible and incorporated into the traveled way surface except those that are specifically designated to remain.

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 to prevent vegetation encroachment.

On native surface roads, all ruts, holes, and washes 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.

On aggregate surface roads, all ruts, holes, and washes 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. Sidecasting into streams, lakes or water courses will not be permitted.

The cleaning of all drainage ditches, and lead-off ditches shall be included with the blading procedures provided the work can be accomplished with a motor grader. Ditches shall be cleaned of any material which would obstruct the flow of water. The backslope shall not be undercut. Drainage dips shall be maintained to a depth and width to provide positive drainage. The lower end of drainage dips, including lead-off ditches, shall be shaped to drain water away from the roadway.

The roadbed immediately before and after cattleguards shall be bladed in such a manner as to effect a smooth transition. Material shall not be deposited inside cattleguards.

Rolling dips and lead-off ditches shall be cleaned and maintained to a depth and width to provide positive drainage. The lower end of the rolling dip, including lead-off ditches, shall be shaped to drain water away from the roadway.

Widened roadbed sections at cattleguards, curves, fills, and turnouts shall also be included with the blading of the road surface.

MEASUREMENT

860.07

Level 3 Road Maintenance will be measured to the nearest one-tenth (0.1) mile as measured by a Forest Service vehicle odometer along the roadway centerline.

PAYMENT

860.08

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

Payment will be made under:

Pay Item

Pay Unit 860 (01) Level 3 Road Maintenance

Mile