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FHWA Home / Safety / Roadway Departure / Longitudinal Barriers

Longitudinal Barriers

This listing contains barriers such as guardrail, median barrier, bridge railings and transitions, that have been issued an Eligibility Letter by FHWA. The FHWA's Federal-aid eligibility letters are provided as a service to the States and are not a requirement for roadside safety hardware to be eligible for Federal-aid reimbursement. As stated in our eligibility letters, "eligibility for reimbursement under the Federal-aid highway program does not establish approval, certification or endorsement of the device for any particular purpose or use." It is the responsibility of the agency who owns the facility to determine whether or not to use a particular hardware device and how to use it for the particular situation. See AASHTO's Roadside Design Guide and AASHTO's Manual for Assessing Safety Hardware for guidance on selecting the appropriate Test Level (TL) based on traffic using the facility.

Note: May 30, 1997 – ACTION: Crash Testing of Bridge Railings still in effect until sunset dates in the AASHTO/FHWA Joint Implementation Agreement for MASH.

AASHTO Task Force 13 Guide for Barriers provides further information for specific barrier hardware systems, bridge railings and transitions.

Longitudinal Barriers and Miscellaneous Items

  • Select "MASH" for crashworthy systems per the AASHTO Manual for Assessing Safety Hardware
  • Select "350" for crashworthy systems per NCHRP Report 350
  • Select "All" for both "MASH" and "350".

Recently posted Eligibility Letters are marked with an asterisk (*).

Revised, Wednesday, October 18, 2017


**The FHWA Federal-aid Eligibility letters for this device will be rescinded on May 26, 2018 if the conditions of Section 1 of FHWA's May 26, 2017 open letter https://safety.fhwa.dot.gov/roadway_dept/countermeasures/reduce_crash_severity/ openletter052617.cfm) are not met. After May 26, 2018, FHWA would consider assurance from the State DOT or local agency that the device is crashworthy (most often evidenced by including the device in State DOT or local agency standards and specifications) in making a determination of eligibility for reimbursement from the Federal aid program.



 
Code Date 350/MASH Manufacturer Device Description View PDF Text Version
B-281* 7/6/2017 MASH Texas A&M Transportation Institute Longitudinal Barrier View PDF eligibility letter on Longitudinal Barrier (PDF, 4.91 MB). (4.91 MB) View Text eligibility letter on Longitudinal Barrier.
B-279* 5/15/2017 MASH TrafFix Devices Inc. Sentry II Water Cable Barrier View PDF eligibility letter on Sentry II Water Cable Barrier (PDF, 7.12 MB). (7.12 MB) View Text eligibility letter on Sentry II Water Cable Barrier.
B-278 2/14/2017 MASH Mondo Polymer Technologies, Inc Mondo Polymer 8-inch Composite Blackout with cut-outs View PDF eligibility letter on Mondo Polymer 8-inch Composite Blackout with cut-outs (PDF, 5.46 MB). (5.46 MB) View Text eligibility letter on Mondo Polymer 8-inch Composite Blackout with cut-outs.
B-277 2/1/2017 MASH Lindsay Transportation Solutions QuickChange Moveable Barrier Concrete Reactive Tension System View PDF eligibility letter on QuickChange Moveable Barrier Concrete Reactive Tension System (PDF, 3.86 MB). (3.86 MB) View Text eligibility letter on QuickChange Moveable Barrier Concrete Reactive Tension System.
B-276 2/14/2017 MASH Bank Systems AB • Safence 3RSC-16 Blue System 3 Cable Driven Post System View PDF eligibility letter on •	Safence 3RSC-16 Blue System 3 Cable Driven Post System (PDF, 3.46 MB). (3.46 MB) View Text eligibility letter on •	Safence 3RSC-16 Blue System 3 Cable Driven Post System.
B-274 1/30/2017 MASH New York Metropolitan Transportation Authority (MTA) Triborough Bridge and Tunnel Authority (TBTA) Bridge Rail View PDF eligibility letter on Triborough Bridge and Tunnel Authority (TBTA) Bridge Rail (PDF, 4.60 MB). (4.60 MB) View Text eligibility letter on Triborough Bridge and Tunnel Authority (TBTA) Bridge Rail.
B-273 1/30/2017 MASH Valmont Highway Technology Ezy-Guard High Containment (HC) Barrier View PDF eligibility letter on Ezy-Guard High Containment (HC) Barrier (PDF, 4.19 MB). (4.19 MB) View Text eligibility letter on Ezy-Guard High Containment (HC) Barrier.
B-272 2/1/2017 MASH TrafFix Devices, Inc. MASH TrafFix Water Wall TL-2 View PDF eligibility letter on MASH TrafFix Water Wall TL-2 (PDF, 5.66 MB). (5.66 MB) View Text eligibility letter on MASH TrafFix Water Wall TL-2.
B-271 2/1/2017 MASH TrafFix Devices Inc. MASH TrafFix Water Wall TL-1 View PDF eligibility letter on MASH TrafFix Water Wall TL-1 (PDF, 5.29 MB). (5.29 MB) View Text eligibility letter on MASH TrafFix Water Wall TL-1.
B-269 12/27/2016 MASH Midwest Roadside Safety Facility Manitoba Constrained-Width, Tall Wall median barrier View PDF eligibility letter on Manitoba Constrained-Width, Tall Wall median barrier (PDF, 4.08 MB). (4.08 MB) View Text eligibility letter on Manitoba Constrained-Width, Tall Wall median barrier.
B-268 12/27/2016 MASH Midwest Roadside Safety Facility Manitoba Constrained-Width, Tall Wall Bridge Rail View PDF eligibility letter on Manitoba Constrained-Width, Tall Wall Bridge Rail (PDF, 5.34 MB). (5.34 MB) View Text eligibility letter on Manitoba Constrained-Width, Tall Wall Bridge Rail.
B-267 1/30/2017 MASH ArcelorMittal USA LLC ArcelorMittal TL5 Steel Median Safety Barrier View PDF eligibility letter on ArcelorMittal TL5 Steel Median Safety Barrier (PDF, 4.68 MB). (4.68 MB) View Text eligibility letter on ArcelorMittal TL5 Steel Median Safety Barrier.
B-264 9/29/2016 MASH Midwest Roadside Safety Facility Side-Mounted Weak Post Guirdrail Attached to Culvert View PDF eligibility letter on Side-Mounted Weak Post Guirdrail Attached to Culvert (PDF, 3.61 MB). (3.61 MB) View Text eligibility letter on Side-Mounted Weak Post Guirdrail Attached to Culvert.
B-263 9/21/2016 MASH Midwest Roadside Safety Facility MGS to Thrie Beam W&W-O 4 in. Tall Curb View PDF eligibility letter on MGS to Thrie Beam W&W-O 4 in. Tall Curb (PDF, 2.72 MB). (2.72 MB) View Text eligibility letter on MGS to Thrie Beam W&W-O 4 in. Tall Curb.
B-262 9/29/2016 MASH Midwest Roadside Safety Facility Top-Mounted Weak-Post Guardrail Attached to Culvert View PDF eligibility letter on Top-Mounted Weak-Post Guardrail Attached to Culvert (PDF, 2.98 MB). (2.98 MB) View Text eligibility letter on Top-Mounted Weak-Post Guardrail Attached to Culvert.
B-261 12/22/2016 MASH WSDOT WSDOT Guardrail On Slope View PDF eligibility letter on WSDOT Guardrail On Slope (PDF, 1.70 MB). (1.70 MB) View Text eligibility letter on WSDOT Guardrail On Slope.
B-260 5/6/2016 MASH HDOT Typical Cement Rubble Masonry (CRM) Guardrail Wall View PDF eligibility letter on Typical Cement Rubble Masonry (CRM) Guardrail Wall (PDF, 738 KB). (738 KB) View Text eligibility letter on Typical Cement Rubble Masonry (CRM) Guardrail Wall.
B-259 5/6/2016 MASH CalTrans Type 732SW Bridge Rail View PDF eligibility letter on Type 732SW Bridge Rail (PDF, 702 KB). (702 KB) View Text eligibility letter on Type 732SW Bridge Rail.
B-258 2/10/2016 MASH Indiana DOT Indiana Anchored Temporary Concrete Barrier View PDF eligibility letter on Indiana Anchored Temporary Concrete Barrier (PDF, 3.64MB). (3.64MB) View Text eligibility letter on Indiana Anchored Temporary Concrete Barrier.
B-256 12/18/2015 MASH MwRSF Trailing-End Anchorage for 3" Tall Guardrail View PDF eligibility letter on Trailing-End Anchorage for 3" Tall Guardrail (PDF, 3.25 MB). (3.25 MB) View Text eligibility letter on Trailing-End Anchorage for 3" Tall Guardrail.
B-255A 12/23/2015 MASH MwRSF Low-Deflection Portable Concrete Barrier Version 2 View PDF eligibility letter on Low-Deflection Portable Concrete Barrier Version 2 (PDF, 3.45 MB). (3.45 MB) View Text eligibility letter on Low-Deflection Portable Concrete Barrier Version 2.
B-255 12/23/2015 MASH MwRSF Low-Deflection Portable Concrete Barrier Version I View PDF eligibility letter on Low-Deflection Portable Concrete Barrier Version I (PDF, 3.22 MB). (3.22 MB) View Text eligibility letter on Low-Deflection Portable Concrete Barrier Version I.
B-252 4/20/2016 MASH KSI Global Australia KSI Global Safety Roller roadside and median barrier View PDF eligibility letter on KSI Global Safety Roller roadside and median barrier (PDF, 2.20 MB). (2.20 MB) View Text eligibility letter on KSI Global Safety Roller roadside and median barrier.
B-251 7/11/2014 MASH Stongstown B&K Portable Concrete Barrier (PCB) Deflection Reducing Retrofit View PDF eligibility letter on Portable Concrete Barrier (PCB) Deflection Reducing Retrofit (PDF, 683 KB). (683 KB) View Text eligibility letter on Portable Concrete Barrier (PCB) Deflection Reducing Retrofit.
B-250 5/20/2014 MASH XavierC, LLC Non Blocked BMS2-TL3 Single Steel Guardrail View PDF eligibility letter on Non Blocked BMS2-TL3 Single Steel Guardrail (PDF, 3.37 MB). (3.37 MB) View Text eligibility letter on Non Blocked BMS2-TL3 Single Steel Guardrail.
B-249 3/27/2014 MASH Texas A&M Transpportation Institute Gravix Barrier/ Retaining Wall System View PDF eligibility letter on Gravix Barrier/ Retaining Wall System (PDF, 1.29 MB). (1.29 MB) View Text eligibility letter on Gravix Barrier/ Retaining Wall System.
B-247 3/7/2014 MASH Ingal Civil Products Longitudinal Barrier View PDF eligibility letter on Longitudinal Barrier (PDF, 773 KB). (773 KB) View Text eligibility letter on Longitudinal Barrier.
B-246A 4/1/2016 MASH Trinity Retro-Rail™ Guardrail Modification View PDF eligibility letter on Retro-Rail™ Guardrail Modification (PDF, 2.08 MB). (2.08 MB) View Text eligibility letter on Retro-Rail™ Guardrail Modification.
B-246 3/11/2014 MASH Trinity Highway Products TL3 Retro-Rail® Retro Rail View PDF eligibility letter on TL3 Retro-Rail® Retro Rail (PDF, 2.49 MB). (2.49 MB) View Text eligibility letter on TL3 Retro-Rail® Retro Rail.
B-245 12/17/2013 MASH Hill and Smith, Ltd. Brifen Wire Rope Safety Fence O-Post View PDF eligibility letter on Brifen Wire Rope Safety Fence O-Post (PDF, 3.25 MB). (3.25 MB) View Text eligibility letter on Brifen Wire Rope Safety Fence O-Post.
B-243A 12/18/2015 MASH MwRSF Non-Blocked Steel-Post MGS for Use on Wire-Faced, MSE Walls View PDF eligibility letter on Non-Blocked Steel-Post MGS for Use on Wire-Faced, MSE Walls (PDF, 1.54 MB). (1.54 MB) View Text eligibility letter on Non-Blocked Steel-Post MGS for Use on Wire-Faced, MSE Walls.
B-243 9/6/2013 MASH Midwest Roadside Safety Facility 31 Inch Non-Blocked Midwest Guardrail System (MGS) View PDF eligibility letter on 31 Inch Non-Blocked Midwest Guardrail System (MGS) (PDF, 98 MB). (98 MB) View Text eligibility letter on 31 Inch Non-Blocked Midwest Guardrail System (MGS).
B-241 6/5/2013 MASH Minnesota DOT 31-inch high W-Beam Guardrail on a Low-Fill Box Culvert View PDF eligibility letter on 31-inch high W-Beam Guardrail on a Low-Fill Box Culvert (PDF, 673 KB). (673 KB) View Text eligibility letter on 31-inch high W-Beam Guardrail on a Low-Fill Box Culvert.
B-240 11/8/2012 MASH Texas Department of Transportation 31 inch W-Beam Guardrail System with 8 inch offset block View PDF eligibility letter on 31 inch W-Beam Guardrail System with 8 inch offset block (PDF, 749 KB). (749 KB) View Text eligibility letter on 31 inch W-Beam Guardrail System with 8 inch offset block.
B-239 11/1/2012 MASH Memo To NY Division New York State (TCB) Temporary Concrete Barrier w/ Box Beam Stiffener View PDF eligibility letter on New York State (TCB) Temporary Concrete Barrier w/ Box Beam Stiffener (PDF, 625 KB). (625 KB) View Text eligibility letter on New York State (TCB) Temporary Concrete Barrier w/ Box Beam Stiffener.
B-236 (REVISED) 7/10/2014 MASH MWRSF Wood-Post 31-inch MGS to Thrie Beam Approach Guardrail Transition System (MGS) to Thrie Beam Approach Guardrai l Transition View PDF eligibility letter on Wood-Post 31-inch MGS to Thrie Beam Approach Guardrail Transition
System (MGS) to Thrie Beam Approach Guardrai l Transition (PDF, 1.55 MB). (1.55 MB) View Text eligibility letter on Wood-Post 31-inch MGS to Thrie Beam Approach Guardrail Transition
System (MGS) to Thrie Beam Approach Guardrai l Transition.
B-233 6/7/2013 MASH Delta Bloc International DB 80 F-Shape Portable Concrete View PDF eligibility letter on DB 80 F-Shape Portable Concrete (PDF, 1.60 MB). (1.60 MB) View Text eligibility letter on DB 80 F-Shape Portable Concrete.
B-232A 11/30/2012 MASH Trinity Highway Products CASS S3 MASH TL-4 Cable Barrier System View PDF eligibility letter on CASS S3 MASH TL-4 Cable Barrier System (PDF, 659 KB). (659 KB) View Text eligibility letter on CASS S3 MASH TL-4 Cable Barrier System.
B-232 5/4/2012 MASH Trinity Highway Products TL-3 CASS S3 on 1:4 slopes View PDF eligibility letter on TL-3 CASS S3 on 1:4 slopes (PDF, 726 KB). (726 KB) View Text eligibility letter on TL-3 CASS S3 on 1:4 slopes.
B-231 (REVISED) 1/27/2012 MASH MWRSF W-beam to thrie-beam stiffness transition View PDF eligibility letter on W-beam to thrie-beam stiffness transition (PDF, 6.36 MB). (6.36 MB) View Text eligibility letter on W-beam to thrie-beam stiffness transition.
B-230A 3/27/2014 MASH MwRSF MGS with SYP posts View PDF eligibility letter on MGS with SYP posts (PDF, 1.06 MB). (1.06 MB) View Text eligibility letter on MGS with SYP posts.
B-230 1/12/2012 MASH MWRSF TL-3 MGS with White Pine Posts View PDF eligibility letter on TL-3 MGS with White Pine Posts (PDF, 756 KB). (756 KB) View Text eligibility letter on TL-3 MGS with White Pine Posts.
B-229 2/6/2012 MASH Ingal Civil Products TL-3 EZY-Guard W-beam & Heavy Duty W-Beam View PDF eligibility letter on TL-3 EZY-Guard W-beam & Heavy Duty W-Beam (PDF, 1.05 KB). (1.05 KB) View Text eligibility letter on TL-3 EZY-Guard W-beam & Heavy Duty W-Beam.
B-228 12/19/2011 MASH MWRSF 31 in Midwest Guardrail System (MGS) Bridge Rail View PDF eligibility letter on 31 in Midwest Guardrail System (MGS) Bridge Rail (PDF, 859 KB). (859 KB) View Text eligibility letter on 31 in Midwest Guardrail System (MGS) Bridge Rail.
B-226 11/18/2011 MASH Conti / PennState Univ. Conti Half Shape Concrete Bridge Rail View PDF eligibility letter on Conti Half Shape Concrete Bridge Rail (PDF, 1.19 MB). (1.19 MB) View Text eligibility letter on Conti Half Shape Concrete Bridge Rail.
B-225 11/17/2011 MASH Washington State DOT Single Slope Concrete Barrier Placed in Front of Steep Slope View PDF eligibility letter on Single Slope Concrete Barrier Placed in Front of Steep Slope (PDF, 653 KB). (653 KB) View Text eligibility letter on Single Slope Concrete Barrier Placed in Front of Steep Slope.
B-221 5/17/2011 MASH Midwest Roadside Safety Facility TL-3 Upstream Anchorage for F-shape Temporary Concrete Barrier View PDF eligibility letter on TL-3 Upstream Anchorage for F-shape Temporary Concrete Barrier (PDF, 5.49 MB). (5.49 MB) View Text eligibility letter on TL-3 Upstream Anchorage for F-shape Temporary Concrete Barrier.
B-216 3/10/2011 MASH Cumberland Barrier, Inc. Emergency Median Access Barrier System (EMA) View PDF eligibility letter on Emergency Median Access Barrier System
(EMA) (PDF, 439 KB). (439 KB) View Text eligibility letter on Emergency Median Access Barrier System
(EMA).
B-215 2/10/2011 MASH Midwest Roadside Safety Facility Free Standing F-Shaped Temporary Concrete Barrier System View PDF eligibility letter on Free Standing F-Shaped Temporary Concrete Barrier System (PDF, 552 KB). (552 KB) View Text eligibility letter on Free Standing F-Shaped Temporary Concrete Barrier System.
B-214 6/10/2011 MASH Midwest Roadside Safety Facility Thrie Beam Transition to Concrete Barrier View PDF eligibility letter on Thrie Beam Transition to Concrete Barrier (PDF, 552 KB). (552 KB) View Text eligibility letter on Thrie Beam Transition to Concrete Barrier.
B-212 6/10/2011 MASH Midwest Roadside Safety Facility Midwest Guardrail System View PDF eligibility letter on Midwest Guardrail System (PDF, 683 KB). (683 KB) View Text eligibility letter on Midwest Guardrail System.
B-211 6/10/2011 MASH Midwest Roadside Safety Facility Midwest Guardrail System placed adjacent to 2:1 Fill Slope View PDF eligibility letter on Midwest Guardrail System placed adjacent to 2:1 Fill Slope (PDF, 1.56 MB). (1.56 MB) View Text eligibility letter on Midwest Guardrail System placed adjacent to 2:1 Fill Slope.
B-198 1/12/2010 MASH MWRSF West Virginia TL-1 Timber Curb-Type Bridge Barrier. View PDF eligibility letter on West Virginia TL-1 Timber Curb-Type Bridge Barrier. (PDF, 2.41 MB). (2.41 MB) View Text eligibility letter on West Virginia TL-1 Timber Curb-Type Bridge Barrier..
B-190 3/31/2009 MASH Bexar Concrete CTB with Quick Bolt Connection View PDF eligibility letter on CTB with Quick Bolt Connection (PDF, 197 KB). (197 KB) View Text eligibility letter on CTB with Quick Bolt Connection.
B-189 3/20/2009 MASH MWRSF MGS over Low Fill Culverts View PDF eligibility letter on MGS over Low Fill Culverts (PDF, 643 KB). (643 KB) View Text eligibility letter on MGS over Low Fill Culverts.
B-178 6/5/2008 350, MASH Mobile Barriers, LLC Mobile Barriers MBT-1 @ TL-2 & TL-3 View PDF eligibility letter on Mobile Barriers MBT-1 @ TL-2 & TL-3 (PDF, 2.38 MB). (2.38 MB) View Text eligibility letter on Mobile Barriers MBT-1 @ TL-2 & TL-3.
B-176C 6/1/2016 MASH Hill & Smith Zoneguard (Concrete) View PDF eligibility letter on Zoneguard (Concrete) (PDF, 1 MB). (1 MB) View Text eligibility letter on Zoneguard (Concrete).
B-176B 6/1/2016 MASH Hill & Smith Zoneguard (Asphalt) View PDF eligibility letter on Zoneguard (Asphalt) (PDF, 1.14 MB). (1.14 MB) View Text eligibility letter on Zoneguard (Asphalt).
B-176A 7/17/2008 MASH Hill and Smith Zoneguard MASH View PDF eligibility letter on Zoneguard MASH (PDF, 361 KB). (361 KB) View Text eligibility letter on Zoneguard MASH.
B-150A 3/26/2008 Mash Gregory Highway Products GMS roadside and median Guardrail to MASH08 View PDF eligibility letter on GMS roadside and median Guardrail to MASH08 (PDF, 1.35 MB). (1.35 MB) View Text eligibility letter on GMS roadside and median Guardrail to MASH08.
B-88F 12/23/2008 MASH Blue Systems / Safence On 1:4 sloped median MASH-08 View PDF eligibility letter on On 1:4 sloped median	MASH-08 (PDF, 836 KB). (836 KB) View Text eligibility letter on On 1:4 sloped median	MASH-08.
B-52C 12/20/2012 MASH Easi-Set Industries Concrete Portable Barrier View PDF eligibility letter on Concrete Portable Barrier (PDF, 2.85 MB). (2.85 MB) View Text eligibility letter on Concrete Portable Barrier.
B-52B 12/20/2012 MASH Easi-Set Industries Concrete Portable Barrier View PDF eligibility letter on 	Concrete Portable Barrier (PDF, 2.85 MB). (2.85 MB) View Text eligibility letter on 	Concrete Portable Barrier.
B-42B 7/7/2009 MASH Rockingham Precast 12-Foot T-LOC F-Shape Portable Concrete Barrier View PDF eligibility letter on 12-Foot T-LOC F-Shape Portable Concrete Barrier (PDF, 205 KB). (205 KB) View Text eligibility letter on 12-Foot T-LOC F-Shape Portable Concrete Barrier.
B-41A 8/19/2011 350, MASH MWRSF TL-3 Approach Between F-Shape and PCB View PDF eligibility letter on TL-3 Approach Between F-Shape and PCB (PDF, 117 KB). (117 KB) View Text eligibility letter on TL-3 Approach Between F-Shape and PCB.
B-39C 7/29/2013 MASH Mondo Polymer Polymer Blockout for MGS Guardrail View PDF eligibility letter on Polymer Blockout for MGS Guardrail (PDF, 1.01 MB). (1.01 MB) View Text eligibility letter on Polymer Blockout for MGS Guardrail.

Page last modified on October 18, 2017
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