Design Services Effluent Tank, Pipeline, and SR89 Improvements (#24PW018)

The City of Prescott is procuring comprehensive engineering design services for a new effluent storage tank, associated force‑main pipeline, and roadway improvements along State Route 89. The scope includes evaluating the existing 24‑in. force main, proposing replacement or slip‑lining, designing a new force main from Kieckhefer Ranch to Willow Lake Road, developing multiple roadway design alternatives with traffic analysis, performing geotechnical investigations, securing environmental permits, completing utility coordination, and providing construction‑phase support. The contract follows a Qualifications‑Based Selection (QBS) process, with a mandatory pre‑bid conference, a Statement of Qualifications submission, and a presentation/interview phase before the award to Kimley‑Horn. The design schedule progresses from 15 % design (March 2025) to 100 % plans (January 2026) with construction slated to begin March 2026 and complete September 2027. • Engineering design of effluent tank, new pipeline, and SR‑89 corridor improvements • Full suite of deliverables from concept (15 %) through final construction documents (100 %) • Required permits: ADEQ, NPDES, USACE 404, FEMA LOMR, among others • Public‑involvement and potential CMAR delivery method included • Awarded to Kimley‑Horn and Associates, LLC via a QBS process