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  5. ›New Union Ditch Concrete Channel Conversion and Headgate

City of Thornton·Colorado

New Union Ditch Concrete Channel Conversion and Headgate

Closes in 3 days$500k – $1MRequest for Proposal
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Description

The City of Thornton seeks a professional engineering firm to design and administer construction of a buried‑pipe conversion for the existing Union Ditch (≈ 3,100 ft) and to design an automated headgate with solar‑powered actuator. The work includes full pre‑design, preliminary, and final design phases, cost estimating, bid‑phase support, construction‑phase administration, and close‑out services, all to be completed by April 1 2028. The contract is fixed‑fee, with deliverables spanning construction‑ready drawings, specifications, cost estimates, submittal reviews, and as‑built documentation. • Scope: 3,100 ft channel conversion to buried pipe plus new automated headgate. • Deliverables: Design drawings, specifications, cost estimate (incl. 10 % contingency), bid documents, construction administration, as‑built set. • Schedule: RFP posted Oct 1 2026 → pre‑proposal conference Oct 13 2026 → submission deadline Nov 5 2026 → design phases completed by mid‑2027 → construction start Fall 2027 → project operational by April 1 2028. • Requirements: Minimum three Colorado engineering projects in past three years, at least one licensed Professional Engineer, insurance limits, and detailed submission package.

Attached files

Contact

Adam Reiner(Contract Administrator)

[email protected]

Key dates

Opened
10/1/2026
Pre-bid meeting
10/13/2026Mandatory
Closes
11/5/2026
Duration
17 months

Last updated

Details

Type
Request for Proposal
Industry
Engineering Services
NAICS
541330
Solicitation №
26-33 & 26-144

Budget estimate

$500,000 – $1,000,000

The RFP specifies a fixed‑fee arrangement but does not disclose the amount. Based on comparable municipal engineering contracts for a 3,100‑ft channel conversion and headgate design, fixed‑fee professional services typically range from $500 k to $1 M, depending on firm rates, scope depth, and risk. Assuming a mid‑range hourly rate of $150–$200 and a total effort of 2,500–4,000 hours (design, bid support, construction administration, close‑out), the likely budget would fall between roughly $500,000 and $1,000,000.

AI estimate from the solicitation

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