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  5. ›Request for Proposal Owner’s Engineer for Rancho Cucamonga…

City of Rancho Cucamonga - Non-Construction Procurement·California

Request for Proposal Owner’s Engineer for Rancho Cucamonga Municipal Utility “RCMU”

Closes 4/20/2026$500k – $2MRequest for Proposal
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Description

The City of Rancho Cucamonga is seeking a qualified Owner’s Engineer (OE) to provide comprehensive engineering oversight for a new 50 MW substation (two 50 MVA, 66/12 kV transformers) for the Rancho Cucamonga Municipal Utility. The OE will act as the City’s technical advisor throughout pre‑design, design‑review, equipment procurement, construction, testing, commissioning, and close‑out phases, ensuring compliance with utility standards, safety, and schedule. The effort is strictly advisory; the OE is not the Engineer of Record and will have no construction means‑methods responsibility. • Perform staged design reviews (pre‑design, 30 %‑60 %‑final) of electrical, structural, protection, SCADA, and civil components. • Oversee vendor submittals, FATs, and construction‑phase documentation, provide on‑site observations, and issue technical status reports. • Manage protection, control, and SCADA coordination, support testing/commissioning, and certify “works‑made‑for‑hire” deliverables. The solicitation requires a firm‑fixed‑price electronic submission by April 20 2026, compliance with California prevailing‑wage rules, a local business license, and extensive insurance coverage as defined in the PSA. Five comparable projects and four recent references are mandatory.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Cheryl Combs(Procurement Contact)

[email protected]

(909) 774-2505

Key dates

Opened
4/8/2026
Questions due
4/20/2026
Closes
4/20/2026

Last updated

Details

Type
Request for Proposal
Industry
Engineering Services
NAICS
541330
Solicitation №
RFP #25/26-021

Budget estimate

$500,000 – $2,000,000

Based on comparable owner‑engineer contracts for 50 MW substations in California, total professional‑service fees typically range from $0.5 M to $2 M depending on scope depth, staffing levels, and the firm’s hourly rates. The low end assumes a minimal‑staff, fixed‑price approach; the high end reflects extensive testing, commissioning support, and premium consulting rates.

AI estimate from the solicitation

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