5-156 compensation for all materials, including reinforcing steel, st eel plates and hardware, equipment, labor and incidentals required, as necessary, to com plete the work. Payment will be made under: P a y I t e m P a y U n i t 526.301 Temporary Concrete Barrier, Type I Lump Sum 526.312 Permanent Concrete Barrier Type II Lump Sum 526.321 Permanent Concrete Barrier Type IIIa Lump Sum 526.323 Texas Classic Rail L u m p S u m 526.331 Permanent Concrete Barrier Type IIIb Lump Sum 526.34 Permanent Concrete Transition Barrier Each SECTION 527 - ENERGY ABSORBING UNIT (Work Zone Crash Cushion)
527.01 Description The Contractor shall furnish and install Wo rk Zone Crash Cushions
as specified in Special Pr ovision 652 or as directed by the Res ident.
527.02 Materials Work Zone Crash Cushions must comply with MASH 16. Work Zone
Crash Cushions shall be selected from Department’s Qualified Pr oducts List of Crash Cushions / Impact Attenuators, or an approved equal.
527.03 Construction Requirements Work Zone Crash Cushions shal l be provided and
installed in accordance with the manufacturer's recommendations for the specific application and the posted speed limit. Work Zone Crash Cushions, which are damaged or destroyed, shall be repaired or replaced promptly. The Contractor shall have on hand one compl ete set of replacements.
527.04 Method of Measurement The Department will measure Work Zone Crash
Cushions by the Unit, complete in place and accepted. A cluste r of Portable Crash Barrels or a cluster of Energite III sand barrels is considered a Unit. Each N-E-A-T or Adiem II is considered a Unit.
527.05 Basis of Payment The Department will pay for the accept ed quantity of Work
Zone Crash Cushions at the Contract unit price for each Unit, w hich price shall be full compensation for furnishing and placing the Work Zone Crash Cus hion, including all incidentals and for resetting as many times as required. Replacements for the Work Zone Crash Cushions damaged beyond fu nctionability by collisions will be paid for as new Work Zone Crash Cushions, an d the removal of the impacted devices and debris will be considered incidental to th e replacement units. Replacement Work Zone Crash Cushions on hand, but unused, will not be paid for directly. 5-157 Payment will be made under: P a y I t e m Pay Unit
527.34 Work Zone Crash Cushions Unit
SECTION 528 - STRUCTURAL TIMBER Reserved SECTION 529 - NAVIGATIONAL AIDS Reserved SECTIONS 531 to 533 – VACANT SECTION 534 - PRECAST STRUCTURAL CONCRETE
534.01 Description The Contractor shall design, manufacture, f urnish, and install
precast structural concrete arches, box culverts or three sided frames and associated wingwalls, headwalls, toe walls, cut-off walls and appurtenance s, in accordance with the Contract Documents.
534.02 Materials Structural precast elements for the arch, box culvert, or three sided
frame and associated precast elements shall meet the requiremen ts of the following Standard Specification Subsection, except as noted otherwise in this spe cification: Structural Precast Concrete Units 712.061 New concrete mix designs and mix designs not previously approve d by the Fabrication Engineer shall be qualified by trial batches prepared in accord ance with AASHTO T 126 (ASTM C192). The test results shall demonstrate that the concr ete meets the requirements of the Contract Documents. Bedding and backfill material shall conform to the requirements of Standard Specification 703.19, Granular Borrow, Material for Underwater Backfill, with the additional requirement that the maximum particle size shall be limited to 4 inches, or as shown on the Plans.
534.03 Drawings Prepare shop detail, erection and other necess ary Working Drawings
in accordance with Standard Specification Section 105.7, Workin g Drawings. The Department will review the drawings in accordance with the appl icable requirements of Section 105.7, Working Drawings. Changes and revisions to the reviewed Working Drawings shall require further review by the Fabrication Engine er. Working Drawings shall include the following minimum details: