Psst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveCLEATUS Webinar: AI for Government Contracting — Free Webinar — Wednesday, November 11 at 2:00 PM ET

Register Free →

Search

Top

Back to Contracts

Transportation Expert Witness

Active

State & Local

Response Deadline12/30/2030, 08:00:00 AM UTC

Contract Overview

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

AI Contract Overview

Show more

This subcontract opportunity is for a Transportation Expert Witness to provide specialized testimony and analysis for prime contractors working on City of Seattle projects. The selected provider will be responsible for analyzing transportation data for legal cases, utilizing forensic analysis tools to develop expert opinions, and delivering comprehensive expert witness reports and courtroom testimony. Qualified candidates must possess subject matter expertise in transportation engineering or planning. This role falls under NAICS code 541330 and is listed through the City Consultant Roster in Washington, with a response deadline extending to December 30, 2030.

General Info

Transportation Expert Witness for City of Seattle projects; deadline December 30, 2030.

Agency

Washington → City Consultant Roster

NAICS

541330 - Engineering Services

Place of Performance

WA, USA

Set-Aside

NONE

Documents

This scope was carved out of CTY-CR-2025-10.

The full solicitation package (3 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

CITYWIDE CONSULTANT ROSTER: Transportation Consulting

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PostedNov 26

subcontract

Response DeadlineDec 30

Submission deadline

Response Deadline

12/30/2030, 08:00:00 AM UTCin about 4 years

Ready to pursue this opportunity?

Get full access to track this contract, build proposals with AI assistance, and manage your pipeline.

Organization & Contact Information

Show more

AgencyWashington → City Consultant Roster

ContactsNo contacts available

OfficeN/A

Organization / AgencyWashington → City Consultant Roster

Office AddressN/A

ContactsNo contact information available

Full Description

Show more

Provides expert testimony and analysis for transportation-related legal matters for prime contractors on City of Seattle projects. Analyzes transportation data for legal cases and provides expert opinions using forensic analysis tools. Requires subject matter expertise in transportation engineering or planning. Delivers expert witness reports and courtroom testimony.

Similar Contracts

Same NAICS industry code

GLCA 318882 - Provide Lake Access to Bullfrog Area

Solicitation # glca-318882-provide-lake-access-bullfrog-area

This solicitation, issued by WW Clyde & Co, seeks design services to provide lake access to the Bullfrog Area in Utah. The scope of work includes the design of a 150-foot-wide concrete launch ramp with a 10.5% grade servicing water surface elevations between 3700 and 3450, a 16-acre asphalt parking area, and a two-lane asphalt access road connecting the parking area to US 276. The project is set aside for small businesses, including SDVOSB, WOSB, HUBZone, and SDB designations, and specifically includes an Indian Small Business Economic Enterprise requirement. Interested parties must respond by November 12, 2026. The primary point of contact for this opportunity is Chanel Hope.

POSTED

about 4 hours ago

DEADLINE

Business Impact Analysis and Update Disaster Recovery Plan Services – Inland Empire Utilities Agency

Solicitation # business-impact-analysis-update-disaster-recovery-plan-services-inland-empire-utilities-agency

Aanko Technologies Inc. is soliciting certified Disadvantaged Business Enterprise and Small Business Enterprise sub-consultants and suppliers to provide professional services for the Inland Empire Utilities Agency in San Bernardino and Riverside Counties, California. The scope of work focuses on emergency management, business continuity planning, technical writing, data collection, and the updating of IT and disaster recovery plans. Relevant expertise should align with NAICS codes for administrative management, engineering services, computer systems design, and public relations. Interested parties must submit their responses by November 17, 2026. The primary point of contact for this opportunity is Liz Jordan-Wettstein. This solicitation specifically targets DBE-certified firms to support the critical infrastructure and operational resilience of the utility agency.

Aanko Technologies Inc.

POSTED

about 4 hours ago

DEADLINE

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.

FINANCE AND BUDGET

POSTED

about 10 hours ago

DEADLINE

in about 1 month

Structural Observation EngineerThis subcontract opportunity is for a Structural Observation Engineer to support prime consultants on seismic retrofit projects managed by the Mayor's Office of Housing and Community Development in San Francisco. The selected professional will be responsible for performing high-level structural observations to ensure that all retrofit implementations align strictly with building codes and the original design intent. A key deliverable for this role is the production of detailed structural observation reports. Qualified candidates must hold a Professional Engineer licensure to be eligible for this position. The solicitation was posted on November 5, 2026, with a response deadline of November 26, 2026. This engagement falls under NAICS code 541330, focusing on specialized engineering services to enhance the seismic resilience of city infrastructure.

Mayor's Office of Housing and Community Development

POSTED

about 10 hours ago

DEADLINE

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.

Mayor's Office of Housing and Community Development

POSTED

about 10 hours ago

DEADLINE

Structural Engineer

POSTED

about 11 hours ago

DEADLINE

Landscape Architect

POSTED

about 11 hours ago

DEADLINE

Civil Engineering Consultant

POSTED

about 11 hours ago

DEADLINE

Lead Skatepark Designer

POSTED

about 11 hours ago

DEADLINE

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

POSTED

about 12 hours ago

DEADLINE

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

POSTED

about 12 hours ago

DEADLINE

Hydraulic Engineering SpecialistThis subcontract opportunity is for a Hydraulic Engineering Specialist to provide hydraulic analysis and conceptual pipeline design for prime contractors working on Las Virgenes Municipal Water District projects. The scope of work involves evaluating pipeline diameters ranging from 16 to 54 inches and performing hydraulic modeling for flow requirements. Specifically, the specialist will analyze alignments extending from PCH through Malibu Canyon and Las Virgenes Road utilizing WaterGEMS or EPANET software to produce a final Hydraulic and Conceptual Engineering Analysis report. Qualified candidates must hold a valid California Professional Engineer license in Civil or Hydraulic 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

POSTED

about 12 hours ago

DEADLINE

More opportunities from Washington → City Consultant Roster

Same awarding agency

PCI-DSS Compliance ConsultingThis subcontract opportunity involves providing PCI-DSS compliance consulting services for prime contractors working on City of Seattle projects. The selected provider will be responsible for analyzing and evaluating business processes and information systems to ensure they meet Payment Card Industry Data Security Standards. Key deliverables include the development of compliance frameworks, the identification of security gaps, the creation of remediation roadmaps, and the delivery of Attestations of Compliance. To be eligible, the contractor must hold a certification as a PCI Qualified Security Assessor or be a Qualified Security Assessor Company. This engagement falls under NAICS code 541611 and is managed through the City Consultant Roster in Washington. The solicitation was posted on January 6, 2026, with a response deadline extending to December 30, 2030.

Administrative Management and General Management Consulting Services

POSTED

DEADLINE

in about 4 years

Vulnerability and Security Assessment ServicesThe Vulnerability and Security Assessment Services subcontract involves performing detailed analysis and assessments of information systems for prime contractors working on City of Seattle projects. The scope of work includes conducting application code reviews, penetration testing, network and application vulnerability scanning, digital investigations, and forensic analysis using specialized scanning tools and forensic software. The primary deliverables for this engagement are comprehensive vulnerability assessment reports and detailed forensic findings. To qualify for this opportunity, providers must demonstrate their expertise by completing three similar projects and passing required City background checks. This subcontract is listed under NAICS code 541519 and is managed through the City Consultant Roster in Washington. Interested parties should note the response deadline of December 30, 2030.

Other Computer Related Services

POSTED

DEADLINE

in about 4 years

CITYWIDE CONSULTANT ROSTER SOLICITATION: Information Technology Consulting (Small Businesses Only)

Solicitation # CTY-CR-2025-01

The City of Seattle is establishing a qualified consultant roster for Information Technology Consulting under solicitation CTY-CR-2025-01, specifically restricted to small businesses. This roster allows City departments to contract for specialized IT services—including external project quality assurance, vulnerability and security analysis, telecommunications, and general computer systems analysis—without a formal advertised competitive process for individual assignments estimated below $420,000. To be approved for the roster, consultants must demonstrate the completion of at least three relevant projects, possess all necessary professional licenses and certifications, and maintain a Washington State business license. Approval to the roster does not guarantee a contract; instead, the City may select firms through informal solicitations to the full roster, a subset of the roster, or via direct selection. The agreement incorporates FAR Part 31 for lump-sum payments based on cost to complete the scope of work and requires compliance with federal debarment verification via SAM.gov. Key administrative requirements include a thirty-day payment term from receipt of invoice and adherence to City ordinances regarding paid sick and safe time, non-discrimination, and WMBE inclusion. Consultants must also comply with ADA Title II and the Washington Law Against Discrimination. Required documentation for the agreement includes a consultant questionnaire for contracts exceeding $10,000, insurance certifications, and potentially a non-disclosure agreement. Responses must be submitted electronically via the City's procurement portal by December 30, 2030.

Computer Systems Design Services

POSTED

DEADLINE

in about 4 years

CITYWIDE CONSULTANT ROSTER SOLICITATION: Conservation and Environmental Issues Consulting

Solicitation # CTY-CR-2025-02

The City of Seattle is establishing a citywide consultant roster under solicitation CTY-CR-2025-02 for specialized Conservation and Environmental Issues Consulting. This roster serves as a pre-qualified pool of consultants that City departments can engage for projects without a formal competitive process, provided the individual contract cost is below $420,000. The roster cycle runs from December 15, 2025, through December 31, 2030, with applications accepted continuously until the end of the cycle. Eligible consultants must provide evidence of completing at least three relevant projects and possess necessary professional licenses and certifications. The program prioritizes small businesses, and if 15 or more qualified small businesses apply for a specific category, that category may be restricted exclusively to them. The scope of work covers several specialized areas, including field sampling and material testing, forestry services, bioengineering and wetland horticulture, geotechnical services, recycling and sustainability studies, water conservation and quality, and underwater diving services. Approved consultants will be engaged via a standard agreement that includes compliance with the Americans with Disabilities Act, non-discrimination policies, and the City's Paid Sick and Safe Time ordinance. Payment is typically issued within 30 calendar days of a proper invoice. While approval to the roster identifies a consultant as qualified, it does not guarantee the award of any specific contract.

Environmental Consulting Services

POSTED

DEADLINE

in about 4 years

CITYWIDE CONSULTANT ROSTER SOLICITATION: Communications Consulting (Small Businesses Only)

Solicitation # CTY-CR-2025-03

The City of Seattle is soliciting qualified small business consultants for its citywide Communications Consulting roster under solicitation number CTY-CR-2025-03. This program allows city departments to contract with approved consultants for specialized services without a formal competitive bidding process, provided the individual contract value remains below 420,000 dollars and the department determines its needs can be met through the roster. This specific solicitation is restricted to small businesses and covers categories including public relations, media production, technical writing, and ethnic community outreach. The city is currently transitioning its roster management from the Online Business Directory to OpenGov, with the official transition date set for January 1, 2026. Until that date, only consultants approved via the Online Business Directory or the designated manual process may be utilized for contracting. The response deadline for this solicitation is December 30, 2030, and the process is managed by the City Consultant Roster office in Seattle, Washington.

Public Relations Agencies

POSTED

DEADLINE

in about 4 years

Police Support Services and Law Enforcement TrainerThis subcontract for Police Support Services and Law Enforcement Trainer provides specialized professional services and tactical training for prime contractors working on City of Seattle police operations projects. The scope of work includes delivering expert training in crisis intervention, explosives, breaching, and tactical operations, while requiring all trainers to hold necessary law enforcement certifications. Beyond training, the contract encompasses police staffing and criminal intelligence analysis utilizing crime data software, as well as the provision of forensic services and composite sketch artistry. The service provider is responsible for delivering comprehensive staffing reports and training certifications to ensure operational compliance.

Professional and Management Development Training

POSTED

DEADLINE

in about 4 years

Physical Security and Access Control ConsultantThis subcontract opportunity is for a Physical Security and Access Control Consultant to provide specialized vulnerability analysis and security assessments for prime contractors working on City of Seattle public safety projects. The selected consultant will be responsible for conducting physical site surveys and electronic infrastructure audits, analyzing existing security policies, and prioritizing necessary risk mitigation improvements. To execute these tasks, the consultant will utilize security audit software and Physical Access Control System analysis tools. The primary deliverables for this engagement include detailed vulnerability assessment reports and formal proposals for security system upgrades. This role falls under NAICS code 541690 and is managed through the City Consultant Roster in Washington. Interested parties can find further details via the provided procurement portal link.

Other Scientific and Technical Consulting Services

POSTED

DEADLINE

in about 4 years

Emergency Management and Disaster Planning ConsultantThe Emergency Management and Disaster Planning Consultant subcontract provides professional services focused on disaster preparation, mitigation, response, and recovery for prime contractors working on City of Seattle public safety projects. The scope of work includes conducting threat assessments, developing Continuity of Operations plans, and planning emergency shelter operations. Additionally, the consultant is responsible for designing and executing tabletop and field training exercises, performing gap analyses, and utilizing hazard mapping tools and emergency management software to deliver comprehensive disaster plans and after-action reports. This opportunity is listed under NAICS code 541690 and is associated with the City Consultant Roster in Washington. The contract was posted on December 5, 2025, with a response deadline extending to December 30, 2030. Interested parties can find further details through the City of Seattle procurement portal.

Other Scientific and Technical Consulting Services

POSTED

DEADLINE

in about 4 years

CITYWIDE CONSULTANT ROSTER: Public Safety and Emergency Preparedness Consulting

Solicitation # CTY-CR-2025-04

Solicitation CTY-CR-2025-04 establishes a Citywide Consultant Roster for Public Safety and Emergency Preparedness Consulting for the City of Seattle. This roster allows City departments to contract with qualified consultants for specialized services without a formal competitive process, provided the individual contract value is below 420,000 dollars. The scope of work is divided into three primary categories: Emergency Management and Support Services, Physical Security Analysis or Assessment, and Police Support Services. The current roster cycle is scheduled to run from January 1, 2026, through December 31, 2030, with all approvals expiring at the end of this period. To qualify for the roster, consultants must demonstrate the completion of at least three relevant projects and provide evidence that key personnel possess the necessary professional licenses, certifications, or education. Applications are submitted via the OpenGov procurement portal in a resume-style format. The City implements a small business priority system where a category may be restricted to small business concerns if 15 or more such firms qualify. Additionally, contracts estimated at 410,000 dollars or more require a Woman and Minority Business Enterprise Inclusion Plan. Payment for approved work is typically issued within 30 calendar days of invoice receipt.

Other Management Consulting Services

POSTED

DEADLINE

in about 4 years

Accessibility Construction Observer/AdministratorThe Accessibility Construction Observer/Administrator subcontract involves providing specialized oversight and verification for City of Seattle facility projects. The primary objective is to ensure that prime contractors implement accessibility requirements exactly as designed, specifically focusing on ADA compliance during the construction phase. Key responsibilities include conducting site observation visits, performing construction contract administration, and verifying that all installed accessibility features align with the approved project plans. The selected provider is responsible for delivering detailed construction observation reports and a final compliance verification to confirm all standards have been met. This opportunity is listed under NAICS code 541330 and is managed through the City Consultant Roster in Washington. The contract remains open for responses until December 30, 2030.

Engineering Services

POSTED

DEADLINE

in about 4 years

Accessibility Design ProfessionalThe Accessibility Design Professional subcontract involves providing specialized technical design services for City of Seattle facility projects. The selected professional will be responsible for creating schematic designs, design development packages, construction plans, and technical specifications specifically focused on accessibility upgrades. Additional duties include performing detailed plan reviews and developing accurate cost estimates to support prime contractors. To qualify for this role, candidates must hold a Registered Architect or Professional Engineer license. The contract requires the delivery of comprehensive construction plans and specifications to ensure project compliance. This opportunity is listed under the City Consultant Roster for Washington and is categorized under NAICS code 541310.

Architectural Services

POSTED

DEADLINE

in about 4 years

ADA Accessibility ConsultantThis subcontract opportunity is for an ADA Accessibility Consultant to provide expert advisory and consulting services for prime contractors working on City of Seattle facility projects. The primary objective is to ensure all projects maintain strict compliance with federal accessibility regulations, specifically applying ADA Title II standards. The scope of work includes conducting program accessibility evaluations, performing detailed building surveying and verification, and developing comprehensive studies and recommendations based on regulations from the DOJ, DOT, HUD, FHA, and FTA. The selected consultant will be responsible for delivering critical accessibility reports, compliance audits, and regulatory recommendations. This position is listed under NAICS code 541620 and is part of the City Consultant Roster in Washington. The contract was posted on December 5, 2025, with a response deadline extending to December 30, 2030.

Environmental Consulting Services

POSTED

DEADLINE

in about 4 years

Earlier notices in this NAICS code

Posted before this notice, open and closed

Transportation Construction Inspection

City Consultant Roster

POSTED

DEADLINE

in about 4 years

CITYWIDE CONSULTANT ROSTER: Transportation Consulting

Solicitation # CTY-CR-2025-10

City Consultant Roster

POSTED

DEADLINE

in about 4 years

Electrical Power Systems Engineering & Design

City Consultant Roster

POSTED

DEADLINE

in about 4 years

Utility Construction Administration & Inspection

City Consultant Roster

POSTED

DEADLINE

in about 4 years

Electrical Systems & Traffic Control Design

City Consultant Roster

POSTED

DEADLINE

in about 4 years

CITYWIDE CONSULTANT ROSTER: Public Utility Related Consulting

Solicitation # CTY-CR-2025-09

City Consultant Roster

POSTED

DEADLINE

in about 4 years

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

Solicitation # E1302-25S

POSTED

CLOSED

Network & System Architecture Documentation

City of Atlanta

POSTED

CLOSED

Geotechnical Engineering & Global Stability Analysis

City of Cumming

POSTED

CLOSED

Quality Inspection and Compliance Services

POSTED

CLOSED

Water Line Testing, Flushing, and Commissioning

Coosa Water Authority

POSTED

CLOSED

RFQ - 44th Ave W Underpass Pedestrian and Bicycle Improvement Project Construciton Management and Administration Services

Solicitation # 3907

Public Works Engineering

POSTED

CLOSED

Ready to Pursue This Opportunity?

Get AI-powered intelligence on this solicitation and the ones like it

Every page of the solicitation package shredded into a compliance breakdown

AI-powered matching based on your capabilities and past performance

Competitor and incumbent history on the requirement

Automated alerts on amendments, Q&A deadlines, and award

Join 750+ contractors already using CLEATUS