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NCHRP350 Approved
NCHRP350 Approved
"NCHRP 350 Approved" refers to roadside safety hardware that has been successfully crash-tested according to the guidelines outlined in the National Cooperative Highway Research Program (NCHRP) Report 350, "Recommended Procedures for the Safety Performance Evaluation of Highway Features."
The following is the list of NCHRP Report 350 Work Zone Approval Letters issued to Three D Traffic Works by the FHWA.
TD2100 - Type I & II Works Barricade – All Plastic
TD2150 Type I & II Econocade Barricade – All Plastic
TD2200-Type I & II Works Barricade – Plastic Panels/Angled Steel
TD2250 Type I & II Works Barricade – Extruded Plastic/Steel
TD2300 – Type I & II Works Barricade – Wood Panels/ Angled Steel
TD2400 Type III Work Barricade - All Plastic
TD2500 Type III Works Barricade Plywood/Angled Steel
TD2550 Type III Works Barricade – Plywood/Tubular Steel
TD2600 Type III Works Barricade – Plastic/Angle Steel
TD2650 Type III Works Barricade – Plastic/Tubular Steel
TD4000 Works Plastic Type III Barricade Rails
TD4300 – Works Barricade Plastic Panels
TD5275 - Boomerang Reboundable Base System-WZ-253
TD5275 - Boomerang Reboundable Base System-WZ-253tent goes here