Table of Contents

Section 101 Introduction

101.1 Purpose

101.2 Limitations of the Design Manual

101.3 Policy

101.4 Applicable Design Specifications and Standards

101.4.1 Design Specification Reference Nomenclature

101.4.2 Design Specifications

101.4.3 AASHTO Interim Specifications and New Editions

101.4.4 Deviations from Specifications

101.4.5 Order of Precedence

101.4.6 Modifications to the Design Manual

101.4.7 Additional Reference Manuals and Documents 101.5 Terms

101.5.1 Bridge Types

101.5.2 Roadway Types

101.5.2.1 Functional Classification

101.5.2.2 National Highway System 101.5.3 Project Types 101.6 FHWA Stewardship and Oversight Agreement

101.7 Computer Software

101.8 Feedback

101.9 References