Site work and paving for a road / highway in Darwin, California. Completed plans call for site work for a road / highway; and for paving for a road / highway.

Construct minor concrete slope protection. 09-Iny-168-34.2/36.6 Estimate: $510,000 In Inyo County About 9 Miles West Of Deep Springs At Various Locations From 2.7 Miles East To 5.1 Miles East Of White Mountain Road The Contractor must have either a Class A license or any combination of the following Class C licenses which constitutes a majority of the work: C-8, C-50, C-12. 30 Working Days Submit your bid with bidder's security equal to at least 10 percent of the bid. CADOT - Construct Minor Concrete Slope Protection This NOA is based upon the information provided by the Applicant. Project details are summarized in the following table. The purpose of this Project is to reinforce 7 locations where ephemeral drainage channels intersect State Route 168 at road sags and to prevent further undercutting of roads and soil erosion during storm events. Caltrans will install underground concrete retaining structures and the original channel contour and grade will be maintained to prevent any ponding or accumulation of water. Temporary impacts to WOS will result from construction access. Permanent impacts to WOS will result from the underground concrete structures being installed in the upstream and downstream shoulders (see Enclosure 2). The project is limited to the reinforcement of 10 locations along State Route 168 where an unnamed ephemeral drainage crosses the road. The goal of the Project is to prevent further undercutting of the roadway and reduce soil erosion during large storm events. The Project includes, 1) grading of sediment and storm debris from the channels beds to improve flow and accommodate the gabion structures, 2) excavation of the 3-foot by 3-foot by 6-foot area of the streambed adjacent to the existing pavement for placement of rock filled gabions, 3) installation of several 3-foot by 3-foot rock filled gabions constructed of polyethylene or PVC coated mesh, wrapped in rock slope protection geotextile, fabric (Class 8) and topped with a three-inch thick concrete, 4) construction of concreted shoulders adjacent to the existing Edge of Pavement (10 -feet to 25-feet wide), and 5) placement of native material, excavated for installation of gabions, on the downstream side of the ephemeral channel, or 6) installation on concreted rock slop protection that is anchored into the native wash material. The Project locations will be accessed from the paved roadway. Project equipment will include a backhoe, roller, compactor, loader, dump trucks, grader, concrete trucks and concrete pumps. The Project is limited to the reinforcement of 10 locations along State Route 168 where an unnamed ephemeral drainage crosses the road. The goal of the Project is to prevent further undercutting of the roadway and reduce soil erosion during large storm events. The Project includes, 1) grading of sediment and storm debris from the channel's beds to improve and accommodate the gabion structures and/or cast-in-place cement erosion control structures (at locations 4 through 10 only), 2) excavation of the 3- foot by 3-foot by 6-foot area of the streambed adjacent to the existing pavement for placement of rock filled gabions and/or cast-in-place cement erosion control structures (at locations 4 through 10 only), 3) installation of several 3-foot by 3-foot rock filled gabions constructed of polyethylene or PVC coated mesh, wrapped in rock slope protection geotextile, fabric (Class 8) and topped with 3-inch thick concrete, and cast-in-place cement erosion control structures (at locations 4 through 10 only), 4) construction of concrete shoulders adjacent to the existing Edge of Pavement (10- feet to 25-feet wide), and 5) placement of native material, excavated for the installation of gabions and/or cast-in-place cement erosion control structures, within the immediate channel location where the spoils were generated and graded to match the channel areas, placed on the direct upstream and/or downstream sides of the ephemeral channel at Project locations 4 through 10 (See Exhibit A of the Agreement Amendment), or 6) installation of concreted rock slop protection that is anchored into the native wash material. The Project locations will be accessed from the paved roadway. Project equipment will include a backhoe, roller, compactor, loader, dump trucks, grader, concrete trucks and concrete pumps.