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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Work Zone Devices

Approved Products

Select a state to see approved products.

MASH Implementation

Select a state to see Manual for Assessing Safety Hardware (MASH) implementation.

Temporary Traffic Control Devices Policy

Select a state to see temporary traffic control policies.

Alabama Approved Products

Alabama – List of Qualified Materials, Sources and Devices

Alabama MASH Implementation

Alabama Department of Transportation

  • Memo SUBJECT: Implementation of MASH Standards for Routine Maintenance Activities

Alabama Temporary Traffic Control Devices Policy

Guidelines for Operation (see Subject: Temporary Traffic Control Devices starting on Page 216 of 341)

Alaska Approved Products

Alaska – No Information Available

Alaska MASH Implementation

Alaska Department of Transportation

  • Chief Engineer’s Directive: Standard Drawings and Standard Modifications for W-Beam Barrier MASH Implementation

Alaska Temporary Traffic Control Devices Policy

Alaska Highway Preconstruction Manual, Chapter 14. Highway Work Zone Safety and Traffic Control Plans (Includes information on positive protection devices)

Arizona Approved Products

Arizona – Approved Products List

Arizona MASH Implementation

Arizona Department of Transportation

  • Draft MASH Barrier Design Aids

Arizona Temporary Traffic Control Devices Policy

Implementation Guidelines for Work Zone Safety & Mobility (See Chapter 9 Compliance with 23 CFR630 Subpart K)
Temporary Traffic Control Design Guidelines (Includes information on positive protection devices)

Arkansas Approved Products

Arkansas – Qualified Product List

Arkansas MASH Implementation

Arkansas State Highway and Transportation Department

  • Supplemental Specification: Traffic Control Devices in Construction Zones (MASH)

Arkansas Temporary Traffic Control Devices Policy

Policy for Work Zone Safety and Mobility

California Approved Products

California – Authorized Materials Lists

California MASH Implementation

California Department of Transportation

Implementation of the Manual for Assessing Safety Hardware (MASH)

California Temporary Traffic Control Devices Policy

  • Memorandum Subject: Design Information Bulletin (DIB) 91 Guidelines on the Use of Positive Work Zone Protection (PWP) & Mitigation Measures
  • Memorandum Subject: Work Zone Positive Protection
    • Attachment 1: CEM-4903 Change Order Memorandum (PDF)
    • Attachment 2: CEM-4900 Change Order Form (PDF)
    • Attachment 3: Positive Protection Specifications (PDF)
    • Attachment 4: Construction Details-Mobile Barrier Systems (PDF)
  • Transportation Management Plans Design Manual, Part 2, Chapter 5: Positive Protection (Temporary Barriers)

Colorado Approved Products

Colorado – Approved Products List

Colorado MASH Implementation

Colorado Department of Transportation

  • MASH Related Memos

Colorado Temporary Traffic Control Devices Policy

  • Guidelines for the Use of Positive Protection in Work Zones
  • Work Zone Safety
  • Utilization of Law Enforcement in Work Zones Policy Memo 30

Connecticut Approved Products

Connecticut – Qualified Product List

Connecticut MASH Implementation

Connecticut Department of Transportation

  • ENGINEERING BULLETIN: Interim Guidance: MASH Implementation, Roadside Barriers
  • ENGINEERING DIRECTIVE: MASH Implementation: Additional Information, Phase One
  • Presentation: MASH Implementation Phase 1

Connecticut Temporary Traffic Control Devices Policy

  • Work Zone Safety Reviews (Look in Work Zone Safety and Mobility Process Review Reports and Work Zone Safety Reviews Annual Reports for Subpart K and positive protection info)

Delaware Approved Products

Delaware – Approved Product Lists

Delaware MASH Implementation

Delaware Department of Transportation

  • Delaware’s MASH Implementation Plan

Delaware Temporary Traffic Control Devices Policy

  • Guidelines for the Use of Uniformed Law Enforcement Officers in Work Zones
  • Quality Guidelines for Temporary Traffic Control Devices

Florida Approved Products

Florida – Approved Products List

Florida MASH Implementation

Florida Department of Transportation

  • Memo SUBJECT: MASH-16 Implementation Plan

Florida Temporary Traffic Control Devices Policy

  • FDOT Design Manual, 215.4.9 Positive Protection in Work Zones
  • Plans Preparation Manual, Volume I, 4.4.7.4 Positive Protection in Work Zones

Georgia Approved Products

Georgia – Qualified Products List 34: Work Zone Traffic Control Devices

Georgia MASH Implementation

Georgia Department of Transportation

  • Memo SUBJECT: Roadside Safety Hardware (Implementation of MASH Testing Criteria) AMENDED – October 15, 2018
  • Memo SUBJECT: W-Beam Terminals (June 30, 2018 – MASH Implementation)
  • Memo SUBJECT: Cast-In-Place Concrete Barriers (Implementation of MASH)
  • Qualified Products List (NCHRP-350/MASH TL-3 certified)

Georgia Temporary Traffic Control Devices Policy

  • Work Zone Safety & Mobility Policy

Hawaii Approved Products

Hawaii – No Information Available

Hawaii MASH Implementation

Hawaii – No Information Available

Hawaii Temporary Traffic Control Devices Policy

Hawaii – No Information Available

Idaho Approved Products

Idaho – Qualified Products List

Idaho MASH Implementation

Idaho Transportation Department

  • Memo SUBJECT: 2016 MASH Implementation

Idaho Temporary Traffic Control Devices Policy

  • Idaho’s Work Zone Safety and Mobility Program
  • Work Zone Positive Protection Guidelines for Idaho

Illinois Approved Products

Illinois – Material Approvals

Illinois MASH Implementation

Illinois Department of Transportation

  • Circular Letter 2018-15: Transition to MASH Compliance for Roadside Hardware

Illinois Temporary Traffic Control Devices Policy

  • Safety Engineering Policy Memorandum 4-15: Work Zone Safety and Mobility Supplemental Policy- Moving Ahead for Progress in the 21st Century Act (MAP-21) and Subpart K to Title 23 CFR Part 630: Positive Protection of Workers, Drop-offs and Temporary Concrete Barrier (TCB)

Indiana Approved Products

Indiana –  Qualified Products Lists and Qualified Source Lists

Indiana MASH Implementation

Indiana Department of Transportation

  • Manual for Assessing Safety Hardware (MASH) and New W-beam Guardrail and Guardrail End Treatment Standards
  • Presentation: MASH Implementation of W‐Beam Guardrail

Indiana Temporary Traffic Control Devices Policy

  • Policies, Processes, and Procedures for Work Zone Safety and Mobility
  • Indiana Design Manual, 503-3.05(01) Positive Protection
  • Recurring Special Provisions & Plan Details: 801-R-672 Law Enforcement Officer for Work Zone Safety

Iowa Approved Products

Iowa – Approved Products List

Iowa MASH Implementation

Iowa Department of Transportation

  • INSTRUCTIONAL MEMORANDUMS: Traffic Barriers (Guardrail and Bridge Barrier Rail)
  • Design Manual, 8A-5 – Roadside Safety Hardware Assessment
  • Usage of Iowa DOT Standard Guardrail

Iowa Temporary Traffic Control Devices Policy

  • Policies and Procedures Manual: Work Zone Safety and Mobility
  • Guidelines for Use of Extra-Enforcement in Iowa Department of Transportation Construction and Maintenance Work Zones
  • Construction Manual, 5.33 TEMPORARY BARRIER RAIL

Kansas Approved Products

Kansas – Prequalified Products

Kansas MASH Implementation

Kansas Department of Transportation

  • 2015 Standard Specifications, 805 – Work Zone Traffic Control & Safety
    (See Pages 1-2 of 11 for MASH testing requirements)

Kansas Temporary Traffic Control Devices Policy

Proposed Positive Protection Guidance for Kansas: Synthesis of Work Zone Positive Protection Devices and State of Practice

Kentucky Approved Products

Kentucky – List of Approved Materials

Kentucky MASH Implementation

Kentucky Transportation Cabinet

  • Memo SUBJECT: Manual for Assessing Safety Hardware (MASH) Initial Implementation for Guardrail, Cast-in-Place Concrete Barriers and End Treatments Active Sepia List Implementation

Kentucky Temporary Traffic Control Devices Policy

  • Design and Construction Joint Memorandum: Guidance for the Implementation of SAFETEA-LU Subpart K to Title 23 CFR part 630 for Federal-Aid Highway Projects
  • Design and Construction Joint Memorandum: Guidance for the Use of Uniformed Law Enforcement Officers in Highway Work Zones
  • Highway Design Guidance Manual [See 206.3.4 Positive Protection & Separation Devices and 206.4 Guidance for the Use of Uniformed Law Enforcement Officers (LEOs) in Highway Work Zones]

Louisiana Approved Products

Louisiana – Approved Materials List

Louisiana MASH Implementation

Louisiana Department of Transportation and Development

  • Memo SUBJECT: Bridge Design Technical Memorandum No. 76, Rev. 1 (BDTM.76.1) Publication of New (MASH) Highway Guard Rail Standard Plans (BD. l.l.1.0.01-.11, BD.1.1.2.0.01, BD.1.1.3.0.01) and New (MASH Compatible) Guard Rail Special Details (BD.2.6.5.1.01-.19, BD.2.6.5.2.01-.19)

Louisiana Temporary Traffic Control Devices Policy

No Information Available

Maine Approved Products

Maine – Qualified Products List

Maine MASH Implementation

Maine Department of Transportation

  • Guardrail and Guardrail Terminal Policy

Maine Temporary Traffic Control Devices Policy

No Information Available

Maryland Approved Products

Maryland – Qualified Product List

Maryland MASH Implementation

Maryland Department of Transportation

  • Procedures for the Qualification of Arrow Panels
  • Procedure for the Qualification of Permanent Traffic Barrier End Treatments
  • Addendum to the Guidelines for Traffic Barrier Placement and End Treatment Design

Maryland Temporary Traffic Control Devices Policy

Policy for the Use of Temporary Traffic Barrier in Work Zones

Massachusetts Approved Products

Massachusetts – Qualified Traffic Control Equipment

Massachusetts MASH Implementation

Massachusetts Department of Transportation

  • ENGINEERING DIRECTIVE: Temporary Barrier Systems for Construction and Maintenance Operations (See Implementation of MASH Performance Requirements on Page 2 of 2)
  • ENGINEERING DIRECTIVE: MASH Compliant Permanent Impact Attenuators
  • ENGINEERING DIRECTIVE: F Shape Concrete Barrier for Permanent Use
  • ENGINEERING DIRECTIVE: Updated Standards for Guardrail and Guardrail End Terminals
  • ENGINEERING DIRECTIVE: Temporary Concrete Barrier Retrofitted to MASH TL-3

Massachusetts Temporary Traffic Control Devices Policy

  • MassDOT’s Work Zone Transportation Management Procedures
  • 700 CMR 6.00: Use of Road Flaggers and Police Details on Public Works Projects

Michigan Approved Products

Michigan – Qualified Products List

Michigan MASH Implementation

Michigan Department of Transportation

  • MDOT Guidance on Manual for Assessing Safety Hardware (MASH) Compliance for Temporary Traffic Control Devices in Work Zones

Michigan Temporary Traffic Control Devices Policy

  • Work Zone Mobility (See Manual for Assessing Safety Hardware (MASH) Compliance Guidance for Temporary Traffic Control Devices in Work Zones)

Minnesota Approved Products

Minnesota – Approved/Qualified Products

Minnesota MASH Implementation

Minnesota Department of Transportation

  • MnDOT & MASH
  • Memo SUBJECT: Crashworthy Requirements of Temporary Traffic Control Devices

Minnesota Temporary Traffic Control Devices Policy

  • Temporary Traffic Control (TTC) products and services
  • Use of Positive Protection in Work Zones
  • Speed Limits in Work Zones Guidelines (See EXTRAORDINARY ENFORCEMENT starting on Page 14 of 25.)

Mississippi Approved Products

Mississippi – Approved Lists

Mississippi MASH Implementation

Mississippi Department of Transportation

  • Check List for Federal-Aid Projects: Section 904 – Notice to Bidders No. 1206: MASH Compliant Devices

Mississippi Temporary Traffic Control Devices Policy

  • Procedure for Managing Traffic Through Work Zones

Missouri Approved Products

Missouri – Materials

Missouri MASH Implementation

Missouri Department of Transportation

  • Engineering Policy Guide, 606.1 Guardrail
  • Engineering Policy Guide, 612 Impact Attenuators
  • End Terminals, Crash Cushions and Barrier Systems

Missouri Temporary Traffic Control Devices Policy

  • Engineering Policy Guide, 616.14 Work Zone Safety and Mobility Policy
  • Engineering Policy Guide, 617.1 Temporary Traffic Barriers
  • Engineering Policy Guide, 616.19 Quality Standards for Temporary Traffic Control Devices

Montana Approved Products

Montana – Qualified Products List

Montana MASH Implementation

Montana Department of Transportation

  • Memo SUBJECT: MASH Guardrail Implementation Guidance

Montana Temporary Traffic Control Devices Policy

  • Work Zone Safety & Mobility Toolbox
  • Road Design Manual (See 10.5.1 Positive Protection)

Nebraska Approved Products

Nebraska – Approved Products List

Nebraska MASH Implementation

Nebraska – No Information Available

Nebraska Temporary Traffic Control Devices Policy

Nebraska – No Information Available

Nevada Approved Products

Nevada – Qualified Products List

Nevada MASH Implementation

Nevada – No Information Available

Nevada Temporary Traffic Control Devices Policy

Work Zone Safety & Mobility Implementation Guide (See 2.5.2 Positive Protection Devices)

New Hampshire Approved Products

New Hampshire – Qualified Products

New Hampshire MASH Implementation

New Hampshire Department of Transportation

  • Roadside Safety Hardware Worthiness Compliance with NCHRP Report 350 and MASH (See Page 209 of 386)

New Hampshire Temporary Traffic Control Devices Policy

New Hampshire Department of Transportation

  • Positive Protection Guidance for Work Zones
  • Flagger and Uniformed Officer Use in Work Zones

New Jersey Approved Products

New Jersey – Qualified Materials

New Jersey MASH Implementation

New Jersey Department of Transportation

  • NJDOT Guidance on Transition of MASH Implementation for Bridge Railings

New Jersey Temporary Traffic Control Devices Policy

Work Zone Safety Program

New Mexico Approved Products

New Mexico – No Information Available

New Mexico MASH Implementation

New Mexico – No Information Available

New Mexico Temporary Traffic Control Devices Policy

  • Infrastructure Design Directives IDD-2018-08 – Sign Sheeting Requirements
  • NMDOT Design Manual (see 900 Work Zone Safety)
  • Infrastructure Design Directive IDD-2018-14 Temporary Concrete Wall Barrier

New York Approved Products

New York – Materials and Equipment Approved List

New York MASH Implementation

New York Department of Transportation

  • Restrictions on Use of Weak-Post W-Beam, HPBO Terminals, and Half-Section Concrete Barrier
    [See AASHTO/FHWA Joint Implementation Agreement for the Manual for Assessing Safety Hardware (MASH) – Restrictions Effective in 2018 on Page 1 of 21]

New York Temporary Traffic Control Devices Policy

HDM Chapter 16 – Work Zone Traffic Control

North Carolina Approved Products

North Carolina – Approved Products List

North Carolina MASH Implementation

North Carolina Department of Transportation

  • Memo SUBJECT: Roadside Safety Hardware – MASH-16 Implementation Plan

North Carolina Temporary Traffic Control Devices Policy

  • North Carolina Department of Transportation’s Implementation of the FHWA Final Rule on Safety & Mobility 23 CFR 630 Subparts J & K: Work Zone Qualification and Training Component
  • Guidelines for the Use of Positive Protection in Work Zones
  • Construction Manual, Division 11 Work Zone Traffic Control, Section 1101 Work Zone Traffic Control General Requirements
  • Transportation Management Plans Design Manual, Chapter 5: Positive Protection (Temporary Barriers)
  • Transportation Management Plans Design Manual, Chapter 6: Law Enforcement Usage

North Dakota Approved Products

North Dakota – Approved Products for Construction Materials

North Dakota MASH Implementation

North Dakota Department of Transportation

  • MASH UPDATE: 2020 Construction and Project Development Presentations
  • Highway Barrier Pocket Guide

North Dakota Temporary Traffic Control Devices Policy

  • Design Manual, Chapter III: Roadway Design, Section 18: Work Zone Traffic Control
  • Traffic Control Requirements for NDDOT Operations on Highways and Streets

Ohio Approved Products

Ohio – Qualified Products List

Ohio MASH Implementation

Ohio Department of Transportation

  • Manual for Assessing Safety Hardware (MASH)​​​​

Ohio Temporary Traffic Control Devices Policy

  • Traffic Management in Work Zones
  • Traffic Engineering Manual, 600 Temporary Traffic Control
  • Traffic Engineering Manual, 1200 Zones and Studies (Includes information on positive protection)

Oklahoma Approved Products

Oklahoma – Traffic Qualified Products List

Oklahoma MASH Implementation

Oklahoma – No Information Available

Oklahoma Temporary Traffic Control Devices Policy

Oklahoma – No Information Available

Oregon Approved Products

Oregon – Qualified Products

Oregon MASH Implementation

Oregon Department of Transportation

  • Traffic Control Devices Notice

Oregon Temporary Traffic Control Devices Policy

  • 2019 – 2021 Work Zone Enforcement Guidelines
  • Work Zone Safety and Mobility Review Guide (Includes information on positive protection)
  • Traffic Control Plans Design Manual (See 3.4.1 Positive Protection)

Pennsylvania Approved Products

Pennsylvania –  Qualified Products List for Construction and Approved Products for Lower Volume Local Roads

Pennsylvania MASH Implementation

Pennsylvania – No Information Available

Pennsylvania Temporary Traffic Control Devices Policy

Publication 13M (See 12.10 TEMPORARY BARRIERS, B. Need for Temporary Barriers on Page 662 of 890)

Puerto Rico Approved Products

Puerto Rico – No Information Available

Puerto Rico MASH Implementation

Puerto Rico – No Information Available

Puerto Rico Temporary Traffic Control Devices Policy

Work Zone Safety and Mobility Policy

Rhode Island Approved Products

Rhode Island – Approved Materials List

Rhode Island MASH Implementation

Rhode Island – No Information Available

Rhode Island Temporary Traffic Control Devices Policy

DPM 450.05 – Work Zone Safety and Mobility

South Carolina Approved Products

South Carolina – Approved Products List for Traffic Control Devices in Work Zones

South Carolina MASH Implementation

South Carolina Department of Transportation

  • Memo SUBJECT: Design Guidance for MASH and PreMASH Safety Hardware

South Carolina Temporary Traffic Control Devices Policy

Work Zone Traffic Control Procedures and Guidelines for SCDOT Maintenance Activities

South Dakota Approved Products

South Dakota – Approved Products

South Dakota MASH Implementation

South Dakota – No Information Available

South Dakota Temporary Traffic Control Devices Policy

SDDOT Construction Manual, Project Management Section, Chapter 15 – Work Zone Traffic Control

Tennessee Approved Products

Tennessee – Qualified Products List

Tennessee MASH Implementation

Tennessee – No Information Available

Tennessee Temporary Traffic Control Devices Policy

  • Work Zone Safety and Mobility Manual
  • Traffic Control Plans Design Manual (See 3.3.1 – POSITIVE PROTECTION)
  • Circular Letter, 712.04-04 Guidelines for Law Enforcement Use on TDOT Projects (on Page 162 of 208)

Texas Approved Products

Texas – Compliant Work Zone Traffic Control Device List

Texas MASH Implementation

Texas Department of Transportation

  • Current TxDOT MASH Implementation Timetable/Policy (Look under Chapter 7: Miscellaneous Design Elements, Section 1: Longitudinal Barriers and Roadside Safety Hardware Criteria)
  • Presentation: Bridge Railing MASH Updates
  • Presentation: MASH Requirements for Safety Hardware

Texas Temporary Traffic Control Devices Policy

  • Work Zone Positive Protection Guidelines
  • Local Government Projects Policy Manual (See Temporary Traffic Control Devices starting on Page 134 of 234)

Utah Approved Products

Utah – Materials Authorized Products 

Utah MASH Implementation

Utah – No Information Available

Utah Temporary Traffic Control Devices Policy

  • Use of Positive Protection Devices for Workers in Work Zones

Vermont Approved Products

Vermont – Approved Products and Advanced Certifications

Vermont MASH Implementation

Vermont – No Information Available

Vermont Temporary Traffic Control Devices Policy

  • Work Zone Safety & Mobility Policy and Guidance

Virginia Approved Products

Virginia – Traffic Control Devices (TCD) Pre-Approved Listing

Virginia MASH Implementation

Virginia Department of Transportation

  • Clarification of MASH Guardrail Requirements

Virginia Temporary Traffic Control Devices Policy

  • VDOT Compliance to Subpart K – Temporary Traffic Control Devices
  • Guidelines for the Use of Barrier/Channelizing Devices in Work Zones

Washington Approved Products

Washington – Qualified Products List

Washington MASH Implementation

Washington State Department of Transportation

  • MASH Implementation Tracking

Washington Temporary Traffic Control Devices Policy

  • Design Manual, 1010.08 Positive Protection Devices
  • Work Zone Traffic Control Guidelines for Maintenance Operations, 1-6.9 Positive Protection Devices

Washington D.C. Approved Products

Washington D.C. – No Information Available

Washington D.C MASH Implementation

Washington D.C. – No Information Available

Washington D.C Temporary Traffic Control Devices Policy

Washington D.C. – No Information Available

West Virginia Approved Products

West Virginia – Division Approved Product Lists

West Virginia MASH Implementation

West Virginia – No Information Available

West Virginia Temporary Traffic Control Devices Policy

  • Design Directives (See Temporary Traffic Control Devices Final Rule starting on Page 563 of 830)
  • Work Zone Worker Protection Field Guide

Wisconsin Approved Products

Wisconsin – No Information Available

Wisconsin MASH Implementation

General notices to contractors: MASH16 Temporary Crash Cushion Implementation Date

Wisconsin Temporary Traffic Control Devices Policy

  • Traffic Engineering, Operations & Safety Manual, 6-1-1 Work Zone Policy Statement
  • Facilities Development Manual, Chapter 11 Design, Section 50 Traffic Control
  • Traffic Engineering, Operations & Safety Manual, 13-5-6 Temporary Traffic Control Zones (Includes information on positive protection)
  • Traffic Guidelines Manual (Includes information on positive protection)

Wyoming Approved Products

Wyoming – No Information Available

Wyoming MASH Implementation

Wyoming – No Information Available

Wyoming Temporary Traffic Control Devices Policy

  • Traffic Control for Roadway Work Operations
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National Resources

Crashworthy Work Zone Traffic Control Devices

The Federal Highway Administration (FHWA) requires that all work zone traffic control devices on the National Highway System be crashworthy. This section provides links and information on national policy guidance, procedures for getting devices crash tested, and FHWA acceptance letters on the devices that have been deemed crashworthy.

FHWA

  • Countermeasures that Reduce Crash Severity website
  • Work Zone Devices website

Memos and Information Related to MASH Implementation

  • Status of American Association of State Highway and Transportation Officials (AASHTO) MASH Implementation
    Includes a graph showing the status of whether states have or will have a policy in place that requires installation of the safety hardware.
  • Memo SUBJECT: ACTION: Eligibility of Crash Cushion Devices (Manual for Assessing Safety Hardware [MASH]16 sunset date)
  • Memo SUBJECT: INFORMATION: Change to the December 31, 2018, sunset date in the AASHTO/FHWA Joint Implementation Agreement for the AASHTO Manual for Assessing Safety Hardware, 2016 Edition
  • Memo SUBJECT: INFORMATION: Change to the June 30, 2018, sunset date in the AASHTO/FHWA Joint Implementation Agreement for the AASHTO Manual for Assessing Safety Hardware, 2016 Edition
  • Memo SUBJECT: INFORMATION: Clarifications on Implementing the AASHTO Manual for Assessing Safety Hardware, 2016 Edition
  • Memo SUBJECT: INFORMATION: Clarification of Roles and Responsibilities in Implementing the AASHTO/FHWA Joint Implementation Agreement on the AASHTO Manual for Assessing Safety Hardware (MASH)
  • Memo SUBJECT: INFORMATION: AASHTO/FHWA Joint Implementation Agreement for Manual for Assessing Safety Hardware (MASH)
  • Memo SUBJECT: Eligibility of Construction and Highway Safety Equipment Acquisition Costs as a Direct Charge

AASHTO

  • MASH Implementation Information
  • Implementation of AASHTO’s Manual for Assessing Safety Hardware (MASH) 2016
  • Order Manual for Assessing Safety Hardware from AASHTO Store

Product Testing and Evaluation

This information provides links to websites of those agencies or programs that provide equipment testing or evaluation services. It also includes links to evaluation reports of products or technologies.

  • AASHTO – National Transportation Product Evaluation Program
    Provides engineering for the testing and evaluation of products, materials, and devices that are commonly used by the AASHTO member departments of transportation.
  • AASHTO Product Evaluation List
    Provides a repository consisting of findings from the evaluation and testing of new, innovative, and/or proprietary engineered transportation products and materials. Contains AASHTO Evaluated Products, State Evaluated Products, and State Proprietary Products.

Guidance for Installation and Maintenance

  • Installing and Maintaining Crashworthy Work Zone Traffic Control Devices
    A guidance document developed by the American Road and Transportation Builders Association Work Zone Safety Consortium under an FHWA Work Zone Safety Grant

Disclaimer

Information provided by the National Work Zone Safety Information Clearinghouse does not necessarily reflect the views of the FHWA or the American Road & Transportation Builders Association-Transportation Development Foundation. References to specific resources or products do not imply endorsement by the clearinghouse or FHWA.

To submit information to be included in the equipment database, please contact us.

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