Site work and paving for a civil project in Rainier, Oregon. Conceptual plans call for site work for a bridge / tunnel; for paving for a bridge / tunnel; and water / sewer project.

Bridge Installation Little Clatskanie River Confluence (Apiary Road MP 8.4) The work consists of general design and project planning for bridge construction, HMAC overlay, storm water drainage, and right-of- way acquisition, if any. replacement of existing culverts conveying the Little Clatskanie River with a bridge at approximately Apiary Road MP 8.4 near Rainier, Oregon. The County has identified the need for improvements on Apiary Road (MP 8.4) due to the inadequate conveyance of the Little Clatskanie River at its confluence with the Clatskanie River. Specifically, the Little Clatskanie River is conveyed through two (2) culverts that are misaligned and perched above the confluence. The proposal is the replace these culverts with a structure over the river to accommodate this confluence. The expected outcome of the Services under this contract is to complete preliminary and final design plans, specifications, and bid documents; and obtain required permits for this bridge project. The Scope of Work is described in detail, below. Proposers responding to the RFP do so solely at their expense, and the County is not responsible for any Proposer’s expenses associated with the RFP. This project is receiving funding from an Oregon Department of Fish and Wildlife (ODFW) grant. The contract resulting from this procurement will therefore be subject to the terms and conditions of the ODFW grant agreement, which is included in the Sample Contract attached as Exhibit D to this RFP. The selected Proposer and the County will negotiate the delivery schedule, costs, and final Statement of Work, within the scope of what is listed here, for inclusion in the final SOW. DBE Participation Goal Assigned: 0%; Certified Small Business Aspirational Target: N/A Estimated Professional Services Cost: The estimated cost of professional services for this work is $320,000. QUESTIONS/REQUESTS FOR CLARIFICATIONS : All inquiries, whether relating to the RFP process, administration, deadline, or method of award, or to the intent or technical aspects of the RFP must: Be delivered to the SPC via email: grant.dejongh@columbiacountyor.gov Reference the RFP number: S-C00055-00014942 Identify Proposer’s name and contact information Question Deadline 10/02/2025 Any Proposal that is received conditioned on County’s acceptance of any other terms and conditions or rights to negotiate will be rejected.