Roadway Rehabilitation and Restoration Project on State Route 70 Plumas

Roadway Rehabilitation and Restoration Project on State Route 70 Plumas

Roadway rehabilitation and restoration project on State Route 70 in Plumas County from 0.1 mile west of Camp Layman Road to 0.7 mile east of Camp Layman Road. The purpose of the project is to restore or replace worn, damaged and substandard items within the highway. The scope of work includes the following: 1) Grind and replace asphalt concrete (AC) on a section of pavement approximately 600 feet in length on the eastbound lanes. The pavement exhibits surface roughness due to subsiding fill. The repair entails grinding the existing AC and placing new AC surfacing. 2) Replace approximately 3,200 linear feet of metal beam guardrail (MBGR) on the north and south sides of the highway. The existing MBGR is worn and damaged and has non-standard end sections. The MBGR assemblies will be moved and replaced with modern MBGR assemblies. 3) AC dike beneath existing MBGR is in poor condition due to settling. Two 12-inch diameter steel down drains were washed out due in part to the poorly functioning AC dike. The existing AC dike will be removed and replaced. 4) The two damaged downdrains will be repaired or replaced. Damage is confined to the sections above the slop-joints. Inlet tapers and any broken anchor assemblies will be replaced. 5) A section of rockfall fence on the north side of the highway from approximately post mile 61.7 to 61.8 is filled with rock. The fence will be cleaned out and either reused or replaced.

Plumas