background image

 
TrinityHighway.com 

Part Number: 626825 

 

 

©2021 Trinity Highway Products, LLC 

 

 

Created November 2021 

SRT™ 31 System 

Flared End Terminal 

The Slotted Rail Terminal-31 System (“SRT™ 31 System”) has been tested to National Cooperative Highway 
Research  Program  (“NCHRP”)  Report  350  criteria  and  has  been  deemed  eligible  for  Federal-aid 
reimbursement on the National Highway System (“NHS”) by the Federal Highway Administration (“FHWA”). 

 

Product Description  

Assembly Manual 

 

15601 Dallas Parkway 

Suite 525 

Addison, Texas 75001 

Warning: 

The state/specifying agency, distributors, owners, and contractors 

are 

RESPONSIBLE 

for the assembly, maintenance, and repair of the SRT™ 31 

System. Failure to fulfill these 

RESPONSIBILITIES 

with respect to the assembly, 

maintenance, and repair of the SRT™ 

31 System

 

could result in serious injury or 

death.

 

Important: 

These  instructions  are  for  standard  assembly  specified  by  the 

state/specifying agency. In the event the specified system assembly, maintenance, or 
repair would require a deviation from standard  assembly parameters, contact a Trinity 
Highway  Products,  LLC  (“Trinity  Highway”)  representative.  This  system  has    been 
deemed eligible by the FHWA for use on the NHS under strict criteria utilized by that 
state/specifying agency. 

 

This  manual  must  be  available  to  the  worker  overseeing  and/or  assembling  the  product  at  all 
times.    For    additional    copies,    contact    Trinity    Highway    at    (888)    356-2363    or    visit 

TrinityHighway.com/Products

 

The information contained in this manual supersede all previous versions. The instructions, illustrations, 
and specifications are based on the latest SRT™ 31 System information available to Trinity Highway at 
publication. We reserve the right to make changes at any time. Please   visit 

TrinityHighway.com/product-

category/end-terminals 

to confirm the latest revision. 

 

 

Summary of Contents for SRT 31 System

Page 1: ...Created November 2021 PN 626825 SRT TM TM 31 System Flared End Terminal Product Description Assembly Manual...

Page 2: ...or death Important These instructions are for standard assembly specified by the state specifying agency In the event the specified system assembly maintenance or repair would require a deviation fro...

Page 3: ...TrinityHighway com 2 Created November 2021 SRT 31 System Flared End Terminal The SRT 31 System is a straight flared single sided re directive and gating end terminal...

Page 4: ...embly 27 STEP 11 SRT Anchor Bracket Assembly 28 STEP 12 SRT Anchor Cable Assembly 29 STEP 13 SRT Angle Strut Assembly 30 STEP 14 SRT Buffer Assembly 31 STEP 15 SRT Delineation Assembly 32 SRT 31 Syste...

Page 5: ...its assembly procedures supporting documentation and performance is always welcome Additional information can be obtained from the contact information below Trinity Highway Telephone 888 356 2363 USA...

Page 6: ...specified condition or replaced as the state specifying agency determines requires as soon as possible Product selection approval proper installation and maintenance of any highway product is the sol...

Page 7: ...st at post location 1 Steel Yielding Terminal Post SYTP at post locations 2 6 SRT Angle Strut SRT Cable Anchor Bracket and SRT Anchor Cable SRT Shelf Angle at post 2 SRT Flange Protector at posts 2 4...

Page 8: ...TrinityHighway com 7 Created November 2021 SRT 31 System 40 7 1 2 Long 31 High Reference drawing SS616...

Page 9: ...5000G 5 5 G SRT Flange Protector at Posts 2 4 6 7G 3 3 I SRT Cable Anchor Bracket 700A 1 1 K SRT Angle Strut 3 x 3 x 1 4 75 mm x 75 mm x 6 mm 33875G 1 1 L SRT Shelf Angle At Post 2 34054G 1 1 M SRT Bu...

Page 10: ...ponents hardware and quantities required for SRT 31 System selected to be assembled Note The following components hardware are not shown to scale ID A PN 30G ID B PN 39G ID C PN 10967G SRT 1 Anchor Gu...

Page 11: ...Assembly 3 4 x 6 6 ID O PN 4211G ID P PN 9960G ID Q PN 33909G 5 16 x 1 75 Hex Bolt SRT Slot Guard SRT Cable Anchor Bracket Angle ID R PN 3400G ID S PN 4419G ID T PN 3910G 5 8 x 2 HGR Post Bolt 5 8 x...

Page 12: ...Hex Bolt A325 5 16 Round Washer SRT 3 Guardrail 15 7 1 2 ID AA PN 3300G ID BB PN 3340G ID CC PN 3245G 5 8 Round Washer 5 8 GR Hex Nut 5 16 Hex Nut ID DD PN 6665B ID EE PN 6666B Delineation Striped Yel...

Page 13: ...Hammer Chalk Line Tape Measure Marking Paint and Pen Straight Edge Level Plumb Line Post Pounder commonly used for driving posts Auger Soil Tamper 5 8 Alignment Tool Drift Pin Locking Pliers Note The...

Page 14: ...ply W beam guardrail must be placed between the SRT 31 System and the Thrie Beam transition or stronger stiffer post Important Do not attach the SRT 31 System directly to a rigid barrier i e concrete...

Page 15: ...ined in the AASHTO Roadside Design Guide is provided around the posts and filled with state specifying agency approved backfill material See Appendix B for leave out requirements of the SYTP If rock i...

Page 16: ...itical to the assembly of the SRT 31 Use only Trinity Highway parts that are specified herein for the SRT 31 System for assembling maintaining or repairing the SRT 31 System Do not utilize or otherwis...

Page 17: ...itical to the assembly of the SRT 31 Use only Trinity Highway parts that are specified herein for the SRT 31 System for assembling maintaining or repairing the SRT 31 System Do not utilize or otherwis...

Page 18: ...and post height are achieved for 6 SYTP 2 6 Part F per shown dimensions above 4 Ensure the center of the SYTP yielding holes are approximately at finished grade as shown Use only Trinity Highway parts...

Page 19: ...nished grade as shown 5 Post 7 is a standard 6 1 83 m long W6x8 5 W150x13 kg or W6x9 W150x13 5 kg guardrail post Use only Trinity Highway parts that are specified herein for the SRT 31 System for asse...

Page 20: ...Use only Trinity Highway parts that are specified herein for the SRT 31 System for assembling maintaining or repairing the SRT 31 System Do not utilize or otherwise commingle parts from other systems...

Page 21: ...nut O 4211G 2 EA Y 3240G 2 EA CC 3245G 2 EA Use only Trinity Highway parts that are specified herein for the SRT 31 System for assembling maintaining or repairing the SRT 31 System Do not utilize or...

Page 22: ...to a snug position with a minimum of two 2 bolt threads protruding beyond the nut L 34054G 2 EA R 3400G 2 EA BB 3340G 2 EA Use only Trinity Highway parts that are specified herein for the SRT 31 Syst...

Page 23: ...en all threaded hardware to a snug position with a minimum of two 2 threads protruding beyond the nut R 3400G 1 EA BB 3340G 1 EA Use only Trinity Highway parts that are specified herein for the SRT 31...

Page 24: ...with a minimum of two 2 bolt threads protruding beyond the nut S 4419G 1 EA U 3360G 8 EA BB 3340G 9 EA Use only Trinity Highway parts that are specified herein for the SRT 31 System for assembling ma...

Page 25: ...il to SYTP 6 6 Tighten all threaded hardware to a snug position with a minimum of two 2 bolt threads protruding beyond the nut Z 20442G 1 EA U 3360G 8 EA BB 3340G 9 EA Use only Trinity Highway parts t...

Page 26: ...y adjacent to the SRT 31 installation 5 Tighten all threaded hardware to a snug position with a minimum of two 2 bolt threads protruding beyond the nut U 3360G 8 EA BB 3340G 8 EA Use only Trinity High...

Page 27: ...acent to the SRT 31 installation 6 Tighten all threaded hardware to a snug position with a minimum of two 2 bolt threads protruding beyond the nut R 3400G 1 EA U 3360G 8 EA BB 3340G 9 EA Use only Trin...

Page 28: ...to the elongated slots 4 Insert all bolts from the traffic side per the diagram 5 Assemble the nuts on non traffic side of bolt 6 Tighten all threaded hardware to a snug position with a minimum of two...

Page 29: ...readed hardware to a snug position with a minimum of two 2 bolt threads protruding beyond the nut W 3380G 8 EA AA 3300G 8 EA BB 3340G 8 EA Use only Trinity Highway parts that are specified herein for...

Page 30: ...red taut when it does not deflect more than 1 inch 25 mm when pressure is applied by hand in an up or down direction Q 33909G 1 EA T 3910G 2 EA V 3900G 2 EA Use only Trinity Highway parts that are spe...

Page 31: ...3 Use the SYTP hole in Post 2 that best aligns with the SRT Angle Strut 4 Tighten all threaded hardware to a snug position with a minimum of two 2 bolt threads protruding beyond the nut X 3391G 2 EA...

Page 32: ...2 bolt threads protruding beyond the nut U 3360G 4 EA BB 3340G 4 EA Use only Trinity Highway parts that are specified herein for the SRT 31 System for assembling maintaining or repairing the SRT 31 S...

Page 33: ...right or left hand assembly applications Trinity Highway makes no guarantees they meet the minimum specifications comply with MUTCD requirements or comply with state specifying agency requirements EE...

Page 34: ...1 and 7 are not curved pp 23 26 13 Ensure the SRT 1 Anchor Guardrail and SRT 2 and 3 Guardrails are oriented correctly and lapped in the direction of the nearest adjacent traffic p 23 14 Ensure that...

Page 35: ...sts 1 and 7 are not curved pp 23 26 13 Ensure the SRT 1 Anchor Guardrail and SRT 2 and 3 Guardrails are oriented correctly and lapped in the direction of the nearest adjacent traffic p 23 14 Ensure th...

Page 36: ...from snowplow mowing or roadway operations Check for misalignment Check for missing system components Check for vandalism Check for damage caused by adverse weather conditions i e erosion weight of s...

Page 37: ...rading must be accomplished before assembly of the SRT 31 System in accordance with state specifying agency guidelines OR the AASHTO Roadside Design Guide whichever is more stringent Failure to follow...

Page 38: ...size of open space as defined in the AASHTO Roadside Design Guide is provided around the post s and filled with state specifying agency approved backfill material that will not prevent movement for an...

Page 39: ...o install the SYTP Post 1 Drill a 21 24 525 mm 600 mm diameter hole a minimum 24 600 mm deep into the rock 2 A portion of the SYTP will have to be removed The amount to be cut off from the bottom of t...

Page 40: ...TrinityHighway com 39 Created November 2021 NOTES...

Page 41: ...TrinityHighway com 40 Created November 2021 NOTES...

Page 42: ...complete information on Trinity Highway products and services visit us on the web at www trinityhighway com Materials and specifications are subject to change without notice Please contact Trinity Hig...

Reviews: