Site work for a road / highway in Florence, Arizona. Completed plans call for site work for a road / highway.

The Pinal County Board of Supervisors hereby invites vendors to submit proposals for the following: Donnelly Wash Low Flow Crossing at Florence-Kelvin Highway The Pinal County Board of Supervisors reserves the right to accept or reject any part of any or all proposals as may be determined in the best interest of the County. The project scope consists of the following tasks: The project is located on the Florence-Kelvin Highway at the Donnelly Wash Crossing approximately 17 miles east of State Route 79 just southeast of the scenic recreational area known as "The Boulders" in Township 5 South, Range 12 East, Section 15 of Gila River Base and Meridian, Pinal County, Arizona The Scope of Work consists of constructing a five cell 10-foot by 4-foot box culvert and a six cell 10-foot by 4-foot box culvert, both crossing north and south underneath the Florence-Kelvin Highway at Donnelly Wash; erosion protection along the east and west side of the gabion mattress adjacent to the box culverts; installation of a guardrail along the deck assembly; and other related work as shown on the approved drawings. The areas to be occupied by the proposed roadway construction or structures should be stripped of all vegetation, debris, rubble and obviously loose surface soils. The silty fine sand soils may be sensitive to excessive moisture content and will become unstable at elevated moisture content. Accordingly, it may be necessary to compact soils on the dry side of optimum, especially in asphalt pavement areas. The reduced moisture content under slabs-on-grade should only be used upon approval of the engineer in the field. Questions Due Date: Oct 1st 2021, 5:00 PM MST