Bridge Engineering

The Bridge Program within the Bureau of Project Development of MaineDOT is responsible for the design and construction of projects to repair and replace bridges across the state.

The primary document defining the processes, practices, and requirements of designing bridges built in Maine is the Bridge Design Guide. This page will be updated periodically with new design guidance and should be checked for updates. Be sure to visit the following companion pages for additional resources and information:

• Highway Engineering
• Traffic Engineering
• Engineering Policies
• Standard Details and Specifications
• Brochures and Guides
• Plans and Reports

Bridge Design Guide

• Chapter 1 (PDF)
• Chapter 2 (PDF)
• Chapter 3 (PDF)

Design Guide memos

• Design Memo - A1 Concrete (PDF)

The previous version of the Bridge Design Guide is additionally available, but this edition should only be used for chapters that have not been replaced with an updated chapter above or superseded by a design memo. Please note that the chapter numbering has changed between the 2018 version and the current version.

Read Complete 2018 Bridge Design Guide (PDF)

Engineering Instructions

• S1 - Design Load Capacity for the Rehabilitation of Vehicular Bridges (PDF)
• S2 - Crane Lifts (PDF)
• S3 - Bridge Attachment (PDF)
• S4 - Murals, Artwork, and Graffiti (PDF)

Forms

Bridge Concept Form

• Culvert to Culvert (DOCX)
• Culvert to Bridge (DOCX)
• Bridge to Bridge (DOCX)
• Rehabilitation (DOCX)

Preliminary Design Report

• Buried Structure (DOTX)
• Span Structure (DOTX)

Supporting Documents

• Preliminary Cost Estimate (XLS)
• Hydraulic Report (DOCX)

Related Standards

Standard notes

• General Construction (DOCX)
• Abutment (DOCX)
• Pile (DOCX)
• Pier (DOCX)
• Pier Design Criteria (DOCX)
• Elastomeric Bearing (DOCX)
• Structural Steel (DOCX)
• Superstructure (DOCX)
• Precast Concrete Superstructure (DOCX)

Recurring Special Provisions

• Special Provision Templates