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Commission approves Bartlett & West engineering agreement for Crosstown water transmission main
Summary
The commission authorized a professional services agreement with Bartlett & West (not to exceed $63,984) to design Phase 2 (Hudson Avenue) of a multi-phase crosstown transmission main project; staff described redundancy and long-term phasing with estimated total program cost up to $20–25 million.
The Manhattan City Commission voted unanimously to approve a professional services agreement with Bartlett & West not to exceed $63,984 for design work on Phase 2 (Hudson Avenue) of the Crosstown Water Transmission Main project.
Director DeWitt described the project history and system needs, saying the existing 24-inch crosstown main dates from 1971 and currently lacks redundancy. Modeling shows high velocities during peak demands that can produce damaging transients, commonly called “water hammer.” “When water is moving fast and something happens where it stops, it essentially creates...a water hammer in the system,” DeWitt said during the presentation and explained how redundancy will protect the system and extend main life.
DeWitt outlined a multi-phase approach with up to 10 phases and noted that individual phases are being coordinated with other street and stormwater projects to gain efficiencies. He estimated the city’s eventual program could range from about $20 million to $25 million; Phase 2 construction is anticipated to cost between $1 million and $1.3 million, with contract design work to proceed in 2026 and construction likely in 2027. The commission approved the Bartlett & West agreement 5–0.
Staff said the project team will continue route analysis, coordinate with K‑State and other infrastructure projects, and present future phases and funding options for commission review.
