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Structures (Items 500-599)

545Crash Cushion Attenuators

TX · 2024 Standard SpecificationsBook pages 836837View official source ↗

Article 1 — Description

For permanent placement or temporary work zone locations, furnish and install, move and reset, or remove crash cushion attenuators.

Article 2 — Materials

2.1 Permanent Crash Cushion Attenuators . Furnish new crash cushion attenuators in accordance with the

details shown on the plans and in conformance with the manufacturer’s shop drawings. Obtain crash cushion attenuators at the location shown on the plans when furnished by the Department. New crash cushion attenuators that are furnished for the project may be used in temporary installation locations if they meet the design requirements for the temporary installation location and the final placement location, and if the attenuator s are fully functional .

2.2 Work Zone Crash Cushion A ttenuators . Furnish new or used crash cushion attenuators in accordance

with Item 502, “Barricades, Signs, and Traffic Handling,” and as shown on the plans. Sacrificial water -filled crash cushion attenuators (which are designated for exclusive use in temporary work zone locations) may be reused for the applicable payment items as long as the crash cushions are undamaged, all parts from the appropriate installation manual are supplied, and the devices are not older than 7 yr. from the manufacture date. If the 7- yr. manufacture date occurs during project construction, the device may be used to the termination of the project up to 10 yr. from the manufacture date.

2.3 Concrete. Furnish concrete for pads in accordance with Item 421, “Hydraulic Cement Concrete,” and the

foundati on requirements as shown on the plans.

Article 3 — Construction

Perform the following as shown on the plans .

3.1 Installation . Assemble and install crash cushion attenuators in accordance with the details shown on the

plans and in conformance with manufacturer recommendations. Obtain assembly and installation information for the crash cushion attenuators from the manufacturer and provide the Engineer with an installation and repair manual specific to the crash cushion attenuators.

3.2 Moving and Resetting. Remove crash cushion attenuators from a stockpile or from an existing location and

reset in a new location as shown on the plans or as directed. Install crash cushion attenuators in conformance with pertinent standards and manufacturer recommendations. Provide additional mat erials to complete the installation as needed. Dispose of unsalvageable materials in conformance with federal, state, and local regulations. New cushions that ar e initially placed in temporary work zone applications and later moved to a permanent location will be paid for under “Move and Reset.”

3.3 Removal . Retain and remove Contractor- furnished temporary work zone attenuators from the right of way

when no longer in use. E xisting attenuators salvaged from the project, meeting the above requirements, may be reused for temporary work zone installations unless otherwise shown on the plans. Retain and remove existing attenuators unless otherwise shown on the plans. For existing attenuators designated as salvageable, remove the crash cushion attenuators, clean, and stockpile in the area shown on the plans. Dispose of unsalvageable materials in conformance with federal, state, and local regulations. 827 4. MEASUREMENT This i tem will be measured by each crash cushion attenuator.

Article 5 — Payment

The work performed and materials furnished in accordance with this Item and measured as provided for under “Measurement” will be paid for at the unit price bid for “Crash Cushion Attenuator (Furnish and Install, Designated Source, Move and Reset, Stockpile, or Remove)” of the category, width (N or W), and test level , and for work zones the width, test level , and designation “Work Zone.” This price is full compensation for foundations , materials, stockpiling, moving and removing, hauling, installing and resetting, disposal of unsalvageable materials, equipment, labor, tools, and incidentals. Incidental maintenance and incident repair and replacement will be paid for in accordance with Article 7.17., “Contractor’s Responsibility for Work,” and Article 9.7., “Payment for Extra Work and Force Account Method.”

5.1 Furnish and Install . This price is full compensation for furnishing and installing crash cushion attenuator.

5.2 Designated Source. This price is full compensation for delivering and installing Department -furnished crash

cushion attenuator from a designated source.

5.3 Move and Reset . This price is full compensation for moving crash cushion attenuator installations on the

project site from one location to another (including disassembly and reassembly costs), moving crash cushion attenuator from an installation on the project site to a temporary storage area (including disassembly costs), and moving crash cushion attenuator from a temporary storage area to an installation site (including assembly costs).

5.4 Stockpile . This price is full compensation for removing crash cushion attenuator from the project site and

delivering to the Department stockpile area shown on the plans or as directed.

5.5 Remove. This price is full compensation for removing an existing or C ontractor -furnished crash cushion

attenuator from the project site and retention by the Contractor

Source: Texas Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges, 2024 Edition. Pages 836837 of 1,034.