APPENDIX 6: List of Mandatory Standards

Request for Proposals

RFP-2026-0911

Washington State

Roadway Toll Systems

Modernization Programs

Offered by

Washington State Department of

Transportation

Roadway Toll Systems Project Appendix 6. List of Mandatory Standards

6-i State of Washington Contract No. ___ Department of Transportation

Table of Contents

APPENDIX 6. LIST OF MANDATORY STANDARDS ....................................................................... 6-1

6-1 State of Washington Contract No. ___ Department of Transportation

APPENDIX 6. LIST OF MANDATORY STANDARDS

The following is a list of publications that shall be used for all design and installation. This is not a comprehensive list; other applicable publications may be required to complete all design and construction. If the Vendor becomes aware of any ambiguities or conflicts relating in any way to the mandatory standards, the requirements of an environmental document, programmatic agreement, or permit issued for the Project, the Vendor shall notify WSDOT immediately, so that WSDOT may resolve them. If a requirement or permit condition is unclear or ambiguous, the Vendor shall obtain clarification from the WSDOT Project Manager prior to proceeding with design or installation. Unless otherwise noted these are WSDOT references:

• AASHTO A Guide for Accommodating Utilities within Highway Right-of-Way

• AASHTO A Policy on Design Standards – Interstate System

• AASHTO A Policy on Geometric Design of Highways and Streets

• AASHTO Guide for High Occupancy Vehicle Facilities

• AASHTO Guide Design Specifications for Bridge Temporary Works

• AASHTO Guide Specifications for LRFD Seismic Bridge Design

• AASHTO Highway Safety Manual

• AASHTO LRFD Bridge Design Specifications, Customary U.S. Units. Interim Revisions

• AASHTO LRFD Bridge Construction Specifications

• AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic

Signals

• AASHTO Standard Specifications for Transportation Materials and Methods of Sampling and Testing

• AASHTO LRFD Guide Specifications for Design of Concrete-Filled FRP Tubes for Flexural and Axial

Members

• AASHTO LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic

Signals

• AASHTO LRFD Road Tunnel Design and Construction Guide Specifications

• AASHTO Manual for Assessing Safety Hardware (MASH)

• AASHTO Manual for Bridge Evaluation

• AASHTO Manual on Subsurface Investigations

• AASHTO Roadside Design Guide

• American Concrete Institute Code Requirements for Environmental Engineering Concrete Structures

(ACI 350)

• American Standard for Nursery Stock (ANSI Z60.1-2014)

6-2 State of Washington Contract No. ___ Department of Transportation

• American Traffic Safety Services Association Quality Guidelines for Work Zone Traffic Control

Devices

• ASCE Pre-Standard for LRFD of Pultruded FRP Structures

• AWS Structural Welding Code – Steel (AWS D1.1/D1.1M)

• AWS Structural Welding Code – Reinforcing Steel (AWS D1.4/D1.4M)

• AASHTO/AWS Bridge Welding Code (AWS D1.5M/D1.5)

• EIA Electronic Industries Alliance Standards and Technical Publications

• FHWA Developing and Implementing Transportation Management Plans for Work Zones

• FHWA Evaluating Scour at Bridges

• FHWA Final Rule on Work Zone Safety and Mobility (23 CFR Part 630 Subpart J)

• FHWA Flexibility in Highway Design

• FHWA Guidelines for Applying Traffic Microsimulation Modeling Software

• FHWA Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD)

• FHWA Seismic Retrofitting Manual for Highway Structures: Part 1 – Bridges

• FHWA Standard Highway Signs

• FHWA Traffic Control Systems Handbook

• FHWA Traffic Monitoring Guide

• Implementing Agreement between Washington Department of Ecology and WSDOT

• International Municipal Signal Association (IMSA) IMSA Official Wire and Cable Specifications

Manual

• ITE Manual of Transportation Engineering Studies

• ITE Traffic Control Devices Handbook

• ITE Traffic Engineering Handbook

• National Electrical Manufacturers Association Standards

• National Fire Protection Association, National Electric Code (NFPA, NEC)

• National Environmental Policy Act (NEPA)

• Endangered Species Act (ESA)

• National Pollutant Discharge Elimination System (NPDES)

• NCHRP Report 350: Devices in Work Zones

• NFPA 70: National Electric Code (NEC)

• Service Agreement Request Checklist

• Special Signing Details https://www.google.com/search?q=National+Pollutant+Discharge+Elimination+System&rlz=1C1GCEO_enUS1049US1049&oq=NPDES+&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIQCAEQABiRAhixAxiABBiKBTINCAIQABiRAhiABBiKBTIMCAMQABgUGIcCGIAEMgcIBBAAGIAEMgwIBRAAGEMYgAQYigUyDAgGEAAYFBiHAhiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCDE0ODVqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8&ved=2ahUKEwiB792v3veSAxXZIDQIHQaBI7YQgK4QegYIAQgAEAQ

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• Statement on Auditing Standards

• TRB Highway Capacity Manual

• United States Code

• Code of Federal Regulations

• U.S. Department of Transportation National ITS Architecture

• U.S. Access Board ADA Accessibility Guideline for Buildings and Facilities (ADAAG)

• U.S. Access Board Revised Draft Guidelines for Accessible Public Rights-of-Way

• Washington State Constitution

• Revised Code of Washington

• Washington Administrative Code

• Washington State Modifications to the Manual on Uniform Traffic Control Devices

• WSDOT Bridge & Structures Office Design Memoranda

• WSDOT Bridge Design Manual (LRFD)

• WSDOT Communications Manual

• WSDOT Community Engagement Plan

• WSDOT Construction Manual

• WSDOT Design Manual

• WSDOT Electronic Engineering Data Standards Manual

• WSDOT Environmental Compliance Assurance Procedure

• WSDOT Environmental Manual

• WSDOT Geotechnical Design Manual

• WSDOT Guidelines to Address Illegal Encampments within State Right of Way

• WSDOT Highway Runoff Manual

• WSDOT Highway Surveying Manual

• WSDOT Hydraulics Manual

• WSDOT Integrated Roadside Vegetation Management Plans

• WSDOT Local Agency Guidelines

• WSDOT Maintenance Manual

• WSDOT Materials Manual

• WaTech Policy SEC-01

• WSDOT Pavement Policy

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• WSDOT Plan Sheet Library – Work Zone Traffic Control

• WSDOT Plans Preparation Manual

• WSDOT Qualified Product List

• WSDOT Right of Way Manual

• WSDOT Roadside Manual

• WSDOT Roadside Policy Manual

• WSDOT Safety Analysis Guide

• WSDOT Safety Procedures and Guidelines Manual

• WSDOT Sign Fabrication Manual

• WSDOT Signal, Illumination, and ITS Details

• WSDOT Spill Prevention Control and Countermeasures (SPCC) Plan Template

• WSDOT Standard Concrete Finishes for Bridge & Structure Construction in Highway Projects

• WSDOT Standard Plans

• WSDOT Standard Signal Details

• WSDOT Standard Specifications

• WSDOT Special Provisions

• WSDOT Temporary Erosion and Sediment Control Manual M 3109

• WSDOT Toll Signing Design Guidance Document

• WSDOT Traffic Manual

• WSDOT Traffic Power System Design

• WSDOT Utilities Accommodation Policy

• WSDOT Utilities Manual WSDOT Work Zone Traffic Control Guidelines for Maintenance Operations

• WSDOT Roadside Electrical and Electronic System (REES) Standards

• WSDOT Spill Prevention, Control and Countermeasures Plan Template

• WSDOT Category 1 Ecology-Approved BMPs

The following standards are only applicable for projects located in the respective regions:

• WSDOT Northwest Region Channelization Plan Checklist

• WSDOT Northwest Region Electrical Special Provisions (*)

• WSDOT Northwest Region ITS Special Provisions (*)

• WSDOT Northwest Region ITS Design Requirements (*)

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• WSDOT Olympic Region Traffic Special Provisions for Work Zone Traffic Control (WZTC), Signals, Illumination and Signing. (*)

• WSDOT Olympic Region Traffic Design ITS Special Provisions (*)

• WSDOT Olympic Region ITS Design Requirements (*)

• WSDOT Southwest Region Traffic Special Provisions (*)

The current version of all WSDOT standards listed is available on the WSDOT website and can be looked up online at the following address: https://wsdot.wa.gov/engineering-standards/all-manuals-and-standards.

The RTS Vendor is expected to follow the latest standard available as of the date when the respective facility SOW is signed and NTP is issued.

(*) Copies of these documents are included with the RFP (latest version at the date of RFP publication).

END OF APPENDIX

https://wsdot.wa.gov/engineering-standards/all-manuals-and-standards https://wsdot.wa.gov/engineering-standards/all-manuals-and-standards