This Government Contract opportunity from California was posted on September 3, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Roadway Improvements and Traffic Calming Design

Closed

State & Local

Submission Closed09/29/2026, 11:00:00 PM 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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Geotechnical Analysis and Stability ModelingThis subcontract for Geotechnical Analysis and Stability Modeling involves providing professional engineering analysis for prime contractors working on Upper Thames River Conservation Authority dam projects in Canada. The scope of work focuses on reviewing structural data and seepage at armour stone retaining walls, confirming embedment depths, and updating slope stability analyses utilizing the Slope/W model. The final deliverables for this engagement include comprehensive Geotechnical Reports and updated Slope/W models. To qualify for this contract, the service provider must hold a valid P.Eng license and ensure all work complies with the Ontario Accessibility Standards and the LRIA Technical Bulletin. Interested parties must submit their responses by November 18, 2026.

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R.T. Orr Dam Geotechnical Investigations

Solicitation # 2026-05

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Upper Thames River Conservation Authority

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Traffic Signal Infrastructure Design and PS&E PreparationThis subcontract opportunity involves providing professional engineering design services for regional signal synchronization projects within the City of Aliso Viejo, California. The selected contractor will support prime contractors by preparing comprehensive Plans, Specifications, and Estimates for traffic signal equipment and infrastructure improvements, while also developing technical responses and bid advertisements. A valid California Professional Engineer license is required to perform this work. The project culminates in the delivery of a complete PS&E package, with a response deadline set for December 2, 2026.

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Traffic Data Collection and Field Study ServicesThis subcontract for Traffic Data Collection and Field Study Services supports prime contractors on regional signal synchronization projects for the City of Aliso Viejo. The scope of work involves comprehensive traffic analysis, including seven-day 24-hour machine counts, intersection turning movement counts, and floating car studies utilizing GPS and synchronized video analysis. All operations must be conducted within Caltrans right-of-way in strict accordance with 2026 CTFP Guidelines, with final deliverables consisting of field review memos and summarized count data provided in Excel format. The project is located in Aliso Viejo, California, under NAICS code 541330. Interested parties should note that the solicitation was posted on October 28, 2026, with a response deadline set for December 2, 2026.

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DEADLINE

Oso Parkway/Pacific Park Drive/Glenwood Drive Regional Traffic Signal Synchronization Project

Solicitation # 20261026016

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DEADLINE

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DEADLINE

Buckhead CID Livable Centers Initiative Master Plan

Solicitation # 2026-10

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Buckhead Community Improvement District

POSTED

DEADLINE

Wastewater System Engineering ConsultantThe Wastewater System Engineering Consultant subcontract involves providing technical analysis and preliminary design services for prime contractors working on sewerage system projects for the City of Alamo. The selected consultant will be responsible for analyzing existing system capacity and conditions, developing design alternatives, and calculating flow rates in strict accordance with state environmental standards and Georgia Department of Community Affairs guidelines. Key technical requirements include the use of GIS mapping tools and hydraulic modeling software to produce design calculations, technical data, and draft sections of the Preliminary Engineering Report. Qualified candidates must hold a valid Georgia Professional Engineer license to perform this work. This opportunity was posted on October 28, 2026, with a response deadline of November 30, 2026. The project falls under NAICS code 541330 and is focused on ensuring the city's wastewater infrastructure meets all necessary regulatory and performance benchmarks.

City of Alamo

POSTED

about 12 hours ago

DEADLINE

in about 1 month

AI Contract Overview

This subcontract opportunity with the City of Vista involves the development of engineering designs for physical roadway improvements. The selected provider will be responsible for proposing traffic calming solutions, designing signing, marking, and striping improvements, and planning roadway widening to increase intersection capacity. All work must be executed using CAD software to produce full project design packages and detailed construction cost estimates. A valid California Professional Engineering license is required to perform this work. Interested parties must submit their responses by September 29, 2026, for projects located in Vista, California. This procurement falls under NAICS code 541330 and is intended for those acting as subcontractors to prime contractors.

General Info

City of Vista seeks licensed CA engineers for roadway design by September 29, 2026.

Agency

California → City of Vista

NAICS

541330 - Engineering Services

Place of Performance

Vista, CA, 92084, USA

Set-Aside

NONE

Documents

This scope was carved out of As-Needed Traffic Engineering Services.

The full solicitation package (1 document), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

As-Needed Traffic Engineering Services

AI Contract Breakdown

Uniform Contract Format

No documents to break down

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Timeline

PhaseClosed

PostedSep 3

subcontract

Response DeadlineSep 29

Deadline has passed

Submission Closed

09/29/2026, 11:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → City of Vista

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → City of Vista

Office AddressN/A

ContactsNo contact information available

Full Description

Develops engineering designs for physical roadway improvements for prime contractors on City of Vista projects. Proposes traffic calming solutions, designs signing, marking, and striping improvements, and plans roadway widening for intersection capacity. Uses CAD software to create engineered plans. Requires California Professional Engineering (PE) License. Delivers full project design packages and construction cost estimates.