2517.01 DESCRIPTION.
This work shall consist of construction of pavement sections at junctures of railroad in accordance with the contract documents.

2517.02 MATERIALS.
Materials for construction of railroad approach sections shall meet requirements of Division 41 for the respective material.

A. PCC Paving Projects.
The PCC shall be Class C or the same class as specified for the pavement.

B. HMA Paving Projects.
The HMS mixture shall be one step above the adjoining surface course. The asphalt binder shall be PG 64-22.

2517.03 CONSTRUCTION.

A. PCC Paving Projects.
The PCC shall be formed, placed, finished, and cured in accordance with Section 2301.

The Engineer may require the railroad approach section to be placed one lane at a time for the convenience of the traveling public. When the header slab is constructed in two sections, a centerline joint shall be constructed as shown in the contract documents. When the joint is not provided for, 1/2 inch (No. 15) tie bars shall be placed not more than 4 feet (1.2 m) apart and shall extend not less than 18 inches (450 mm) into each section.

B.  HMA Paving Projects.
The HMA shall be placed in accordance with Article 2303.03, D, with maximum 2 inch (50 mm) lifts.  Compaction shall be in accordance with Article 2303.03, E, Class 2.

2517.04 METHOD OF MEASUREMENT.

A. Railroad Approach Section, PCC.
The quantity of Railroad Approach Section, PCC, in square yards (square meters), will be the quantity shown in the contract documents.

B. Railroad Approach Section, HMA.
The quantity of Railroad Approach Section, HMA, in square yards (square meters), will be the quantity shown in the contract documents.

2517.05 BASIS OF PAYMENT.

A. Railroad Approach Section, PCC.
The Contractor will be paid the contract unit price for Railroad Approach Section, PCC, per square yard (square meter). This payment shall be full compensation for excavation for modified subbase and subdrain; furnishing and installing subdrain; furnishing and installing subdrain outlet; furnishing and placing porous backfill; furnishing and backfilling modified subbase; and furnishing and installing reinforcing steel, tie bars, and dowel assemblies.

B. Railroad Approach Section, HMA.
The Contractor will be paid the contract unit price for Railroad Approach Section, HMA, per square yard (square meter).  This payment shall be full compensation for excavation for HMA, modified subbase, and subdrain; furnishing and installing subdrain; furnishing and installing subdrain outlet; furnishing and placing porous backfill; furnishing and backfilling modified subbase; and furnishing and installing fiber board barrier.