11-PaDot Section - 491.pdf

This document contains two sections (Section 491 and Section 492) from a transportation infrastructure technical specification manual, focusing on milling of bituminous pavement surfaces. The specifications detail technical requirements for two types of pavement milling operations: standard milling and profile milling of existing bituminous road surfaces. The guidelines cover equipment specifications, operational procedures, surface preparation, material handling, traffic management, and post-milling requirements such as surface patching and material disposition.

The technical specifications outline measurement and payment methods for milling operations, with two primary disposition options for milled material: retention by the contractor or delivery to a department stockpile location. Payment will be calculated by square yard, with specific provisions for defective work (reduced payment to 50% of contract unit price for areas not meeting surface tolerance requirements). Additional compensable items include Class I Excavation and Patching, which will be measured and paid separately when indicated or required. The document provides detailed technical guidance for contractors performing road surface milling operations, ensuring consistent quality, safety, and performance standards.