Project Information

Bid Title

Professional Engineering Services for the American Martyrs Stormwater Sump Hydrology and Capacity Study

Issuing Agency

City of Manhattan Beach

Location

California

Published Date

Nov 30, 2025

Closing Date

Dec 18, 2025

Government Level

State & Local

Status

Closed

Ref. #

E1302-25S

Original Source

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Project Description

Project ID: E1302-25S

Title: Professional Engineering Services for the American Martyrs Stormwater Sump Hydrology and Capacity Study

Addenda: 0

Release Date: 11/26/2025

Due Date: 12/18/2025

Post Information

Posted At:Wed, Nov 26, 2025 2:54 PMSealed Bid Process:Yes (Bids Sealed / Pricing Sealed)Private Bid:No

Overview

Summary

The City of Manhattan Beach (“City”) invites sealed proposals on the project described herein to be submitted via OpenGov. Proposals will be received until 10:00 am on Thursday, December 18, 2025 .

Bid Valid: 120 Days

Anticipated Start: March 2026

Anticipated Completion: July 2026 or sooner

Anticipated Schedule:

ACTION	DATE
NON-mandatory Pre-Proposal Meeting	12/8/2025 at 10:00 AM
Last Day to Submit Questions	12/10/2025 at 10:00 AM
Proposal Submission Deadline (OpenGov ONLY)	12/18/2025 at 10:00 AM
Staff Review of Proposals	12/18/2025 through 12/31/2025
Interview(s) with Top Ranked Consultant(s) and City Negotiations – ( If Needed )	TBD
City Council Award	February 2026
Contract Execution	February 2026
Notice To Proceed	March 2026

Single Point of Contact for Questions

All questions must be submitted through OpenGov on the website provided in Section 1, Instructions to Proposers. Proposers may not contact any other staff members with questions.

OPTIONAL Pre-Proposal Meeting is scheduled for Monday, December 08, 2025, at 10:00 a.m. at the southwest corner of the American Martyrs School site located at 721 15 ^th Street, Manhattan Beach, CA 90266. See Appendix E for Location Map.

Project Description

The City seeks a Consultant to perform professional engineering services for the American Martyrs Stormwater Sump Hydrology and Capacity Study. The Consultant shall communicate their review and findings for the area as per their expertise, make minor and major recommendations for drainage improvements and long-term resiliency, create conceptual diagrams, as well as provide probable costs and schedule. The final deliverable will be an assessment report outlining the recommendations for any deficiencies unfit per the latest standards, codes, and requirements of all applicable agencies.

The selected Consultant may be utilized for design development following the completion of the report if the City elects to proceed with a recommendation; however, this will depend on performance and additional contract approval, and is not guaranteed.

Background

Project Area

The project’s address is 721 15 ^th Street, Manhattan Beach, CA. Refer to Appendix E for Location Map. The American Martyr’s Sump is located directly adjacent to American Martyrs School and is situated in a localized low point, where stormwater runoff from the adjacent developed areas is transferred to the sump.

Project Background

On occasion during periods of heavy stormwater runoff, American Martyr’s Sump capacity has overflowed and encroached into the adjacent school play and building areas. In 1999, a hydrology report (Appendix F) was created which calculated peak flow, volume of runoff for three storm periods (including Los Angeles County Department of Public Works criteria), and presented four possible solutions for remediation. The hydrologic method was able to identify the 50-year, 4-day storm as the leading design plan for recommendations lowering the risk of flood damage.

The study analyzed infiltration rates and options for gravity systems, a pump station, and discharge directly to the ocean via a new underground storm drain system. The California Coastal Commission, Los Angeles County Department of Public Works, and California Regional Water Quality Control Board all expressed concern for protection of marine life, health, water quality, stormwater treatment, necessary clearances, and permits if water would not be retained. For these reasons, and the fact that the existing sump was determined to percolate with reasonable efficiency at the time, it was recommended to City Council that no further action be taken regarding the American Martyrs stormwater sump.

Stormwater has flooded adjacent areas again, indicating that the sump’s capacity and/or infiltration rates may no longer be sufficient. With changes that occur due to the environment, rainfall, agency requirements, and overall hydrology over the years, an update to the 1999 hydrology report is necessary to verify the required sump capacity and to propose drainage options and maintenance protocol along with their associated costs.

Timeline

Release Project Date:

November 26, 2025

Pre-Proposal Meeting (Non-Mandatory):

December 8, 2025, 10:00am

721 15th Street, Manhattan Beach, CA 90266. See Appendix E for Location Map.

Question Submission Deadline:

December 10, 2025, 10:00am

Proposal Submission Deadline:

December 18, 2025, 10:00am

Commodity Codes

• NAICS 541330Engineering Services

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