Project Information

Bid Title

RFP CONSULTANT SERVICES TO UPDATE THE ORANGE COUNTY HYDROLOGY MANUAL

Issuing Agency

Orange County

Location

California

Published Date

May 20, 2025

Closing Date

Jun 17, 2025

Government Level

State & Local

Status

Closed

Ref. #

080-2707703-DB

Original Source

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Bid Documents

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Project Description

Project ID: 080-2707703-DB

Title: RFP CONSULTANT SERVICES TO UPDATE THE ORANGE COUNTY HYDROLOGY MANUAL

Addenda: 0

Release Date: 5/20/2025

Due Date: 6/17/2025

Post Information

Posted At:Tue, May 20, 2025 4:09 PMSealed Bid Process:Yes (Bids Sealed / Pricing Sealed)Private Bid:No

Overview

Summary

Project Description

The Orange County Flood Control District and the County of Orange has jurisdiction over 380 miles of flood conveyance facilities, and over 35 regional detention basins and dams. The 1986 Orange County Hydrology Manual and 1996 Addendum provides the computational criteria for the estimation of runoff, discharges and volume to size flood control facilities within the county.

Overview

The purpose of the update to the 1986 Orange County Hydrology Manual and 1996 Addendum is to review the hydrologic procedures, assess the runoff frequencies based on 40+ years of data since the original calibration performed in 1983, and research how climate change and post-fire hydrology can be incorporated into the manual.

Project Description

OCFCD is seeking Proposals from qualified consultants to update the Orange County Hydrology Manual.

Background

Project Description

The Orange County Flood Control District and the County of Orange has jurisdiction over 380 miles of flood conveyance facilities, and over 35 regional detention basins and dams. The 1986 Orange County Hydrology Manual and 1996 Addendum provides the computational criteria for the estimation of runoff, discharges and volume to size flood control facilities within the county.

Timeline

Release of RFP Solicitation:

May 20, 2025

Questions from Respondents Due:

June 3, 2025, 2:00pm

RFP Submittal Closing:

June 17, 2025, 2:00pm

Commodity Codes

• NAICS 541330Engineering Services
• NAICS 541611Administrative Management and General Management Consulting Services
• NAICS 541690Other Scientific and Technical Consulting Services

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