City of Issaquah

Release: Nov 26, 2025

Close: Jan 13, 2026

The City of Issaquah is soliciting qualifications for on-call traffic engineering services to support traffic studies, signal timing updates, and traffic engineering design. The City intends to retain up to three on-call consultant firms for a two-year period with an option for a one-year extension; work will be authorized via task orders and the annual agreement amount is expected to be up to $49,999 per selected consultant. Proposals are evaluated on qualifications, experience, key staff, and responsiveness; submitters must execute the City’s Professional Services Agreement if selected.

Release: Nov 25, 2025

Close: Jan 9, 2026

The City of Issaquah is soliciting qualifications from on-call consultants to provide stormwater modeling, hydrologic & hydraulic analysis, and environmental permitting services to support stormwater and stream restoration capital projects and regulatory obligations. The scope includes developing/calibrating H&H models, system capacity analysis, field inspections, preparation of technical memos, and coordination with regulatory agencies. The contract is an on-call consultant agreement projected for 2 years with an estimated total two-year budget of approximately $190,000–$400,000.

Release: Nov 25, 2025

Close: Jan 9, 2026

The City of Issaquah is soliciting on-call engineering consulting services for sewer/stormwater modeling, hydrologic and hydraulic analysis, and environmental permitting support. Services requested include system-wide sewer modeling updates and calibration, capacity evaluations for new developments, scenario modeling, support for capital improvement project development, and preparation of technical memos and modeling summaries. The contract term is projected for two years with possible extension and the solicitation follows an RFQ (Request for Qualifications) process.