This Government Contract opportunity from California was posted on November 26, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Preliminary Engineering Design (10% and 35% LOD)

Closed

State & Local

Submission Closed12/12/2025, 12:00:00 AM UTC

Contract Overview

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

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NAICS: 541330

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Aanko Technologies Inc.

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Infrastructure Improvement Plan (IIP) DevelopmentThis subcontract opportunity involves the development of long-term capital improvement plans for prime contractors managing infrastructure projects for the City of Avondale. The selected provider will be responsible for identifying necessary projects across multiple sectors, including streets, parks, police, and fire services on a five-year horizon, as well as water and sewer systems on a ten-year horizon. Utilizing GIS mapping and civil engineering software, the contractor must estimate project costs, timing, and financing to deliver a comprehensive Infrastructure Improvement Plan. Qualified candidates must hold a Professional Engineer license to perform this work. The solicitation was posted on November 5, 2026, with a response deadline of December 10, 2026. This project falls under NAICS code 541330 and is managed through the Finance and Budget agency in Arizona.

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Mayor's Office of Housing and Community Development

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Certified Welding Inspector (CWI)This subcontract opportunity is for a Certified Welding Inspector to provide specialized inspection services for seismic retrofit projects managed by the Mayor's Office of Housing and Community Development in San Francisco. The selected contractor will work under prime consultants to perform visual and non-destructive testing on structural steel welding and single-pass fillet welds, ensuring all work meets established codes and delivering certified inspection reports to verify weld integrity. The solicitation was posted on November 5, 2026, with a response deadline of November 26, 2026. Classified under NAICS code 541330, this engagement focuses on technical engineering and inspection services essential for the safety and compliance of municipal infrastructure projects within California.

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Structural EngineerThis subcontract opportunity with the California Public Works agency seeks a Structural Engineer to provide specialized analysis and design services for City skatepark improvement projects. The selected contractor will support prime contractors by developing structural plans for reinforced concrete features, monument signs, and supports for art installations or pump tracks. All work must be performed using structural analysis software and requires the delivery of signed and sealed structural plans, reinforcement details, and comprehensive calculations. Qualified candidates must hold a valid California Professional Engineer license to be eligible for this role. The solicitation was posted on November 4, 2026, with a response deadline of December 4, 2026. This project falls under NAICS code 541330, focusing on engineering services to ensure the safety and integrity of public recreational infrastructure.

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Landscape ArchitectThis subcontract opportunity is for a Landscape Architect to provide specialized design services for City skatepark improvement projects. The selected contractor will work under prime contractors to develop comprehensive landscape plans, irrigation systems, and site restoration strategies for park amenities and perimeters. Key responsibilities include the selection of durable materials and plants utilizing professional landscape design software, with final deliverables consisting of detailed irrigation plans and plant schedules. Qualified candidates must hold a valid California Professional Landscape Architect license to be eligible for this role. The project is managed by the California Public Works agency under NAICS code 541330. Interested parties must submit their responses by the deadline of December 4, 2026.

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Civil Engineering ConsultantThis subcontract opportunity is for a Civil Engineering Consultant to provide specialized site engineering, grading, and utility design services for City skatepark improvement projects. The selected consultant will support prime contractors by conducting field reconnaissance, performing infiltration testing, mapping utilities through potholing, and developing comprehensive grading and drainage plans. Key deliverables include utility relocation details and erosion control plans. To be eligible, the consultant must possess a valid California Professional Engineer license and utilize CAD software for design work. This project is managed by the Public Works agency in California under NAICS code 541330. Interested parties must submit their responses by the deadline of December 4, 2026.

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Lead Skatepark DesignerThis subcontract opportunity is for a Lead Skatepark Designer to provide specialized architectural design and layout services for City skatepark improvement projects. Working under prime contractors, the selected professional will refine concept designs and develop rider flow and accessible routes for an 8,000 square foot facility featuring a pump track, street lane, plaza, and bowls. The scope of work requires the use of specialized skatepark geometry software to ensure precise radii and transitions, culminating in the delivery of final concept plans, layouts, and technical concrete details. Qualified candidates must hold a valid California Professional License to perform these services. The project is managed through the California Public Works agency under NAICS code 541330. Interested parties must submit their responses by the deadline of December 4, 2026.

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Etnies Skatepark Improvement Project (25P03)

Solicitation # 25P03

The City of Lake Forest is seeking professional design services for the Etnies Skatepark Improvement Project (25P03) located at 20028 Lake Forest Drive. The selected consultant will refine two preliminary concept designs into a final concept and develop a complete, permit-ready, and bid-ready construction package. Key project enhancements include the addition of an 8,000 square foot all-wheel pump track, improvements to the street lane, plaza, and various bowls, the replacement of the cradle, and the integration of public art. The consultant must coordinate with a separate ongoing building renovation project and develop a construction phasing plan that minimizes operational disruptions. The contract is structured on a time and materials, not-to-exceed basis, with monthly invoicing and a 30-day payment term. Award selection is based on a multi-phase evaluation involving mandatory compliance checks, a qualitative proposal review, and a weighted final score consisting of interviews (80 percent) and cost proposals (20 percent). Requirements include the identification of key personnel such as a Project Manager, Lead Skatepark Designer, and Civil Engineering Lead, all of whom must hold necessary California professional licenses. Additionally, the consultant must comply with California prevailing wage laws, register with the Department of Industrial Relations, and ensure all designs meet ADA standards. Proposals are due by December 4, 2026, via the City's eProcurement portal.

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Electrical Engineering Consultant (Power Systems)This subcontract opportunity is for an Electrical Engineering Consultant specializing in power systems to support prime contractors on Las Virgenes Municipal Water District projects. The selected consultant will be responsible for performing feasibility analyses regarding pump station power requirements, which includes evaluating Southern California Edison power availability and capacity. Utilizing load calculation software, the consultant will analyze electrical infrastructure needs to deliver a comprehensive Pump Station and SCE Power Feasibility Evaluation. Qualified candidates must hold a valid California Professional Engineer license in Electrical Engineering. The solicitation was posted on November 4, 2026, with a response deadline of December 4, 2026. This project falls under NAICS code 541330 and is managed through the Engineering and Facilities agency in California.

Engineering & Facilities

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Traffic Engineering ConsultantThis subcontract opportunity is for a Traffic Engineering Consultant to support prime contractors on projects for the Las Virgenes Municipal Water District. The selected consultant will be responsible for evaluating roadway impacts and traffic disruptions, specifically focusing on pipeline construction within narrow roadways and high traffic volumes in Malibu Canyon. Key tasks include assessing right-of-way and roadway width for equipment and easements through the use of traffic simulation software, culminating in the delivery of a comprehensive Traffic and Roadway Impact Evaluation report. Qualified candidates must hold a Professional Traffic Engineer (PTE) or Civil PE certification. The solicitation was posted on November 4, 2026, with a response deadline of December 4, 2026. This engagement falls under NAICS code 541330 and is managed by the Engineering and Facilities agency in California.

Engineering & Facilities

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about 13 hours ago

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in 29 days

AI Contract Overview

This subcontract opportunity with the California Department of Water Resources involves the delivery of preliminary engineering designs for habitat improvement projects. The scope of work specifically requires the development of design specifications and a Basis of Design Report, with deliverables focused on the 10% and 35% Level of Development. The project falls under NAICS code 541330 for engineering services. Interested parties must submit their responses by the deadline of December 12, 2025, following the posting date of November 26, 2025.