721005 GUARDRAIL END TREATMENT, TYPE 4 -27 EACH

DE · 2025 Standard SpecificationsBook pages 406–407View official source ↗

GUARDRAIL END SECTIONS AND TRANSITIONS SECTION 721 396 ITEM DESCRIPTION UNIT 721000 GUARDRAIL END TREATMENT, TYPE 1 -31, TEST LEVEL 2 EACH 721001 GUARDRAIL END TREATMENT, TYPE 1 -31, TEST LEVEL 3 EACH 721002 GUARDRAIL END TREATMENT, TYPE 2 -31, TEST LEVEL 2 EACH 721003 GUARDRAIL END TREATMENT, TYPE 2 -31, TEST LEVEL 3 EACH 721004 GUARDRAIL END TREATMENT, TYPE 3 -31 EACH 721005 GUARDRAIL END TREATMENT, TYPE 4 -27 EACH 721006 END ANCHORAGE 31 EACH 721007 ENTRANCE SPECIAL END ANCHORAGE EACH 721008 BURIED IN BACK SLOPE EACH 721009 GUARDRAIL TO BARRIER CONNECTION (EXIT TYPE 31) EACH 721010 GUARDRAIL TO BARRIER CONNECTION, APPROACH TYPE 1 -31 EACH 721012 GUARDRAIL TO BARRIER CONNECTION, APPROACH TYPE 3 -31 EACH 721013 GUARDRAIL TO CONCRETE MEDIAN BARRIER TRANSITION EACH 721017 BULLNOSE END TREATMENT EACH HIGH -TENSION CABLE BARRIER SECTION 722 397 SECTION 722 — HIGH -TENSION CABLE BARRIER

722.1Description.

This work consists of constructing high -tension cable barrier (HTCB).

722.2Materials.

A.Provide a HTCB with the following capabilities and features:

1.Crashworthy on level terrain in accordance with the latest MASH testing requirements for a Test

Level 4 (TL -4) installation.

2.Crashworthy on a 4:1 sloped terrain in accordance with the latest MASH testing requirements

for a Test Level 3 (TL -3) installation.

3.Compatible with a crashworthy cable end terminal in accordance with the latest MASH testing

requirements for a Test Level 3 (TL -3) installation.

4.Galvanized steel posts Section 1070

a.Rust inhibitor coating meeting the requirements of Rust -Oleum Truck Bed Coating, (ROC -149)

or equal. Two coats of inhibitor from the below -ground end to 6 -inch above the final ground elevation.

B.Provide HTCB end term inals that are crashworthy in accordance with the latest MASH testing

requirements for a Test level 3 (TL -3) installation.

1.Galvanized steel posts Section 1070

a.Rust inhibitor coating meeting the requirements of Rust -Oleum Truck Bed Coating, (ROC -149)

or equal. Two coats of inhibitor from the below -ground end to 6 -inch above the final ground elevation.

722.3Construction.

722.3.1 Submittals.

A.Submit the following to the engineer before starting construction:

1.FHWA eligibility letters for the proposed HTCB system and end terminals.

2.Buy America certification for steel used on the Project.

3.Installation manual and HTCB system shop drawings.

4.Design details, calculations, dimensions, and specifications for line post concrete footings and

concrete end -terminal anchors. Base the design of line post concrete footings and concrete end - terminal anchors on the specific project location, requiremen ts as shown on the contract, what is specified here, and on Department supplied soil boring information.

5.Rust inhibitor specifications.

722.3.2 Training.

A.Provide on -site field instruction by the system manufacturer , at a location determined by the

engineer . Provide a minimum of 2 training sessions consisting of installation training before beginning cable barrier construction and maintenance training before primary inspection. The

Source: Delaware Standard Specifications for Road and Bridge Construction, 2025 Edition. Pages 406–407 of 779.

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72003 5 GALVANIZED STEEL BEAM GUARDRAIL, TYPE 2 -27 LF

72100 5 GUARDRAIL END TREATMENT, TYPE 4 -27 EACH