Revised PWS 811 and 834.pdf

811 – SURFACE MAINTENANCE (03/21/2007)

811 SURFACE MAINTENANCE

811.01

Service Required

Smooth and shape native or aggregate surfaced roads including traveled way, shoulders, turnouts, and intersections. Reshape or recondition ditches, water bars, and drain dips.

811.02

Performance Standards

A. Maintenance Level 4 and 5 Roads

A road surface is maintained to standard when the travel way is free of washboards, potholes, or other irregularities. The surface is smooth, compact, crowned or sloped to drain, without segregation of the surfacing materials. Suitable materials have been recovered and incorporated. Unsuitable materials have been removed.

Ditches and road surface drainage structures function efficiently. Unpaved shoulders are shaped to provide a smooth transition from the paved surface and drain efficiently.

B. Maintenance Level 3 Roads

A road surface is maintained to standard when the surface is compact, crowned, or sloped to drain, without segregation of the surfacing materials. The road surface has no ruts or rills, suitable materials have been recovered and incorporated. Unsuitable materials have been removed. Ditches and road surface drainage structures function efficiently.

C. Maintenance Level 2 Roads

A road surface is maintained to standard when the surface is shaped to drain, and where ditches and road surface drainage structures function efficiently. The road surface has no continuous ruts or rills, and no large concentrations of unsuitable materials remain.

D. All Roads

When directed by the COR use berm material for surface maintenance. Suitable materials shall be recovered and incorporated. Unsuitable materials shall be removed. When ordered by the Contracting Officer to work in a weed infested area the contractor will be required to prevent spreading the infestation into un-infested areas by cleaning vehicles and equipment. The contractor will use wash stations approved by the Contracting Officer.

811.03

Location of Work

As specified on roads listed on the task order road listing, shown on the plans, marked on the ground, or as ordered by the Contracting Officer. Locations of weed infested areas are marked on the ground. Do not operate in the weed infested areas unless ordered to do so by the Contracting Officer.

811.04

Measurement

Measurement under this Section will be made by the total number of units for each item listed in the

SCHEDULE OF ITEMS completed and accepted.

A. Single Lane Roads: Surface maintenance will be measured along the centerline of the roadway. Turnouts are incidental. Measurement will be to the nearest one-tenth (0.1) mile.

B. Double Lane Roads: Surface maintenance will be measured along the centerline of the roadway. Measurement will be to the nearest one-tenth (0.1) mile.

C. Road Mile: Work activity will be measured along the centerline of the road regardless of the number of lanes.

834 - DRAINAGE STRUCTURE MAINTENANCE (03/21/2007)

834 ROADWAY DRAINAGE SYSTEM MAINTENANCE

834.01

Service Required

Clean and recondition roadway drainage systems including culverts, ditches, inlet and outlet channels, catch basins, and appurtenances.

834.02

Performance Standard

Drainage system maintenance is complete when no obstruction remains in the defined area adjacent to the structure or in ditches which would have the potential to block water from entering the structure, back water into the structure (except for structures designed to function in a back-flooded manner), or divert water outside the defined channel. This includes clearing obstructions from culvert inlets and outlets when performing work under pay item 834(4), Clean Roadside Ditches. Equipment operation in live streams or hydraulic flushing of drainage structures is not permitted.

When ordered by the Contracting Officer to work in a weed infested area the contractor will be required to prevent spreading the infestation into un-infested areas by cleaning vehicles and equipment. The contractor will use wash stations approved by the Contracting Officer.

834.03

Location of Work

As specified on roads listed on the task order road listing, shown on the plans, marked on the ground and/or ordered by the Contracting Officer and;

1. Drainage structures including inlet structures, culverts, catch basins, inlet/outlet channels, and ditches within the area shown on the plans or in the supplemental specifications.

2. Culverts - a minimum external horizontal distance of 10 feet in any direction from the inlet and outlet end and a minimum internal distance of 3 feet from the inlet and outlet ends.

3. Ditches adjacent to the roadbed.

4. This work does not include bridges, cattleguards, drain dips, or water bars.

5. Do not operate in the weed infested areas marked on the ground unless ordered to do so by the

Contracting Officer.

834.04

Measurement

Measurement under this Section will be made by the total number of units for each item listed in the

SCHEDULE OF ITEMS completed and accepted.

Mile: Work activity will be measured along the centerline of the road regardless of the number of lanes.