This Government Contract opportunity from California was posted on May 6, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Hydraulic Modeling of Sewer Network

Closed

State & Local

Submission Closed06/12/2026, 12:00:00 AM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 541330

New

Scattergood GS. Units 1&2 Green Hydrogen-Reaady Modernization

Solicitation # scattergood-gs-units-12-green-hydrogen-reaady-modernization

Kiewit Infrastructure West Co. is seeking sub-quotes for the Scattergood GS Units 1 and 2 Green Hydrogen-Ready Modernization project for the City of Los Angeles Department of Water and Power. The scope of work is extensive, covering various technical and professional services including civil, structural, mechanical, electrical, and instrumentation and controls engineering, as well as cathodic protection system design, BIM/3D modeling, and commissioning and startup planning. Additional requirements include utility locating and potholing, geotechnical and geophysical investigations, LIDAR, land surveying, drone services, CPM scheduling, and comprehensive environmental services such as hazardous materials surveys, permitting support, and compliance monitoring. The solicitation specifically targets qualified Disadvantaged Business Enterprises, including MBE, WBE, and OBE firms. Interested bidders must be issued an Invitation to Bid through the Building Connected system and must possess a valid California Contractor license and acceptable insurance. Responsible subcontractors are required to provide bonding for 100 percent of their contract value, with Kiewit agreeing to reimburse the bond premiums. Bidders must also demonstrate the ability to maintain labor harmony, as Kiewit is a signatory to collective bargaining agreements with several trade unions. The bid deadline is September 11, 2026, and inquiries should be directed to Lead Estimator Joe Bockelman.

Kiewit Infrastructure West Co.

POSTED

DEADLINE

Seeking Qualified Subconsultants for City of Bend’s Southwest Sewer Improvement Phase 3, Project No. 1SSW3

Solicitation # seeking-qualified-subconsultants-city-bends-southwest-sewer-improvement-phase-3-project-no-1ssw3

Water Systems Consulting, Inc. is seeking qualified subconsultants to support the Southwest Sewer Improvement Phase 3 project for the City of Bend, Oregon. The project focuses on addressing sewer system deficiencies by extending gravity sewer mainlines, decommissioning specific pump stations, and installing service laterals for properties currently using onsite septic systems. Additional scopes may include transportation improvements. Funding for this initiative is provided by the Clean Water State Revolving Fund and administered through the Oregon Department of Environmental Quality. WSC is specifically looking for expertise in roadway and drainage engineering, surveying and mapping, right of way services, and public outreach. The firm is prioritizing a good faith effort to include certified DBE firms, as well as other small and disadvantaged business entities. Interested parties must respond by September 29, 2026, to be considered for these professional design services.

Water Systems Consulting, Inc.

POSTED

DEADLINE

SEEKING QUALIFIED SUBCONSULTANTS IN RIVERSIDE COUNTY/SOCAL TO SUPPORT WELL REPLACEMENT PROJECT WITH WATER DISTRICT

Solicitation # seeking-qualified-subconsultants-riverside-countysocal-support-well-replacement-project-water

GHD Inc. is soliciting qualified subconsultants to support the Corydon Well Replacement Design Project for the Elsinore Valley Municipal Water District in Riverside County, California. The project encompasses a wide range of professional services, including engineering, environmental analysis, surveying, geotechnical work, permitting, public outreach, and utility location. This opportunity is specifically targeted toward Disadvantaged Business Enterprises, Small Business Enterprises, Women-Owned Business Enterprises, and Minority-Owned Business Enterprises. Interested firms must submit a qualifications package to Charlie Brown by August 7, 2026, and ensure they receive solicitation documents by 5pm PST on Friday, August 14, 2026. The project falls under several NAICS codes, primarily 541330, and is open to various SBA-certified entities, including Small Disadvantaged Businesses and Service-Disabled Veteran-Owned Small Businesses.

POSTED

DEADLINE

Subcontracting Opportunity: City of Bend’s Southwest Sewer Improvement Phase 3, Project No. 1SSW3

Solicitation # 27-3214

Parametrix is seeking qualified subconsultants to provide civil engineering design and right-of-way services for the City of Bend’s Southwest Sewer Improvement Phase 3, Project No. 1SSW3. The project aims to address sewer system deficiencies in southwest Bend by extending the gravity sewer mainline, installing service laterals for properties currently using onsite septic, and decommissioning existing pump stations, particularly in the Romaine Village area. The scope may also include transportation improvements such as ADA curb ramp and curb design and intersection enhancements at Poplar Street and Ponderosa Street. This initiative is funded by the Clean Water State Revolving Fund through the Oregon Department of Environmental Quality, with a total project budget for design and construction of 3,875,000 dollars. The solicitation, identified as number 27-3214, has a response deadline of September 29, 2026. Parametrix is actively pursuing a good faith effort to include firms with federal, tribal, state, local, or independent DBE certifications, and the project is open to various small business set-asides including WOSB, HUBZone, and SDVOSB. The City of Bend will award the contract based on a scoring system evaluating project understanding, team qualifications, and firm experience, with the goal of advertising for construction services in fall or winter 2027. Submissions must adhere to strict formatting guidelines, including a 12-page limit for primary text sections and the inclusion of signed certifications and assurances.

POSTED

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System Integration, Testing, and Commissioning

POSTED

DEADLINE

Fire Safety & Life Safety Plan Review & Inspection

POSTED

DEADLINE

MEP (Mechanical, Electrical, Plumbing) Plan Review & Inspection

POSTED

DEADLINE

Civil Engineering Plan Review & Site Inspection

POSTED

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Building Code Plan Review & Inspection (General/Structural)

POSTED

DEADLINE

Structural Testing & Special Inspection

Department of Public Defense

POSTED

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Multimodal Transportation & Traffic Analysis

POSTED

DEADLINE

Reconnecting Communities Initiative

Solicitation # 2027-RFQ-CNH-395

The City of New Haven's Reconnecting Communities Initiative, solicitation 2027-RFQ-CNH-395, seeks a multi-disciplinary team to develop a comprehensive Reconnection Plan along I-91. Funded by a 2 million USDOT grant, the project aims to mitigate the long-term impacts of highway construction on surrounding neighborhoods, including East Rock, Cedar Hill, Fair Haven, Long Wharf, and Wooster Square. The objective is to improve mobility, housing, sustainability, and neighborhood cohesion through land reclamation and enhanced transit, pedestrian, and bicycle connectivity. The planning process has a two-year period of performance, with an initial contract term of one year and two optional one-year renewals. The selected consultant will be responsible for delivering urban design and reuse concepts, zoning and regulatory recommendations, anti-displacement strategies, and a phased implementation strategy. All work must adhere to FHWA Planning and Environmental Linkages and NEPA frameworks, as well as federal environmental justice policies. Evaluation is based on a points system, with 45 percent of the score weighted toward qualifications, including experience with CTDOT and AASHTO standards and technical capabilities in ArcGIS and GEOPAK. Proposals must be submitted electronically via the OpenGov portal by October 20, 2026, and must include a valid UEI number. The contract is subject to Connecticut law and includes strict requirements for insurance, non-discrimination, and federal compliance under 2 CFR 200.

City Plan

POSTED

about 23 hours ago

DEADLINE

in about 1 month

AI Contract Overview

The contract requires the development, calibration, and validation of a hydraulic model for the city’s sewer network using collected flow data to ensure accurate representation of system performance under varying conditions. The work must align with industry standards for sewer modeling, incorporating real-world flow measurements to refine the model’s predictive capabilities, identify potential bottlenecks, and support future infrastructure planning and maintenance efforts. The model’s validation phase will involve comparison against observed data to verify reliability and accuracy. This subcontract is solicited under NAICS code 541330, indicating it is for engineering services, and is issued by the California-based Engineering organization. The proposal submission deadline is June 12, 2026, with the opportunity posted on May 6, 2026. The place of performance and point of contact details are not specified, but the work is expected to be conducted in support of municipal sewer infrastructure within California. Interested parties should submit responses prior to the deadline to ensure consideration for award.