03 3D Existing Ground Model.zip

This file is a compressed archive containing a 3D existing ground model related to a major road improvement project in the Mojave National Preserve.

The file supports a Federal Highway Administration solicitation (6982AF25B000013) for improvements to approximately 56.5 miles of roads within Mojave National Preserve in San Bernardino County, California. The project encompasses work on three primary routes: Kelso-Cima Road (19.3 miles), South Kelbaker Road (22.3 miles), and Morningstar Mine Road (14.9 miles). Improvements include full depth reclamation and asphalt resurfacing with widening to consistent 26-foot roadways, reinforcement of 48 low water crossings, and safety enhancements including rumble strips, signage, and pavement markings. The estimated project cost ranges from $80,000,000 to $120,000,000. This is a full and open competition solicitation with HUBZone price preference. The 3D ground model file provided is a technical resource to support bidders' understanding of existing site conditions and elevation data necessary for developing accurate construction plans and cost estimates for this environmentally sensitive project.