CA NP MOJA 11(2) 10(2) Plans_signsealed.pdf

This file contains signed plans and specifications for a Federal Highway Administration road improvement project. The document provides detailed engineering plans for approximately 56.5 miles of road rehabilitation and resurfacing work within Mojave National Preserve in San Bernardino County, California. The project encompasses improvements to three primary roadways: 19.3 miles of Kelso-Cima Road, 22.3 miles of South Kelbaker Road, and 14.9 miles of Morningstar Mine Road. Key work elements include full depth reclamation of existing pavement with new asphalt placement, roadway widening to a consistent 26 feet, reinforcement of 48 low water crossings (11 on South Kelbaker Road and 37 on Kelso-Cima Road with buried concrete barriers and riprap revetment), minor horizontal and vertical realignment in select areas, safety improvements including mumble strips, signing and pavement markings, and paved pullouts.

The project is issued as an Invitation for Bid under full and open competition with HUBZone price preference through FHWA's Central Federal Lands Highway Division. The estimated project cost ranges from $80,000,000 to $120,000,000. The specifications note that work occurs in a natural resource sensitive area with environmental constraints affecting the construction schedule and operations. The project requires significant attention to detail in road construction, traffic control, visitor relations, and timely project completion within the constraints of operating within a national preserve environment.