Bridge Details

The New Hampshire Department of Transportation (NHDOT) makes these documents available on an "as-is" basis. These documents are prepared by the NHDOT for use on NHDOT projects. Others who use these documents do so at their own risk.

Bridge Details are considered nothing more than examples of items that are often used with very similar application from job to job. The details are intended to be copied to a project and modified to fit the particular aspects of the project. They are not intended to be included in a contract plan set without close scrutiny for application to the job.

All the .dgn files have been converted from MicroStation V8i to the newer version, MicroStation Connect.  The MicroStation Connect files listed below are designated with "MSC". 

Additional Bridge Info

Expansion Joints

  • Revision History
  • Format: pdf
  • Revised: 6/5/2024
  • Sample Expansion Joint with Guidelines
  • Format: pdf 
  • Revised: 12/15/2023
  • Compression Seal Expansion Joint (behind backwall, brush curb, precast deck panel)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Compression Seal Expansion Joint (behind backwall, brush curb)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Compression Seal Expansion Joint (in front of backwall, brush curb)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Compression Seal Expansion Joint (in front of backwall, brush curb, sidewalk) (2 sheets)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Compression Seal Exp. Joint (behind backwall, sidewalk, precast deck panel) (2 sheets)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Compression Seal Expansion Joint (approach slab - sleeper slab)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Strip Seal Expansion Joint (behind backwall, brush curb, precast deck panel)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Strip Seal Expansion Joint (behind backwall, brush curb)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Strip Seal Expansion Joint (in front of backwall, brush curb)
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Finger Expansion Joint
  • Format: pdf | dgn (MSC)
  • Revised: 5/21/2024
  • Asphaltic Plug for Crack Control
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Asphaltic Plug Expansion Joint
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Anchor Details
  • Format: pdf | dgn (MSC)
  • Revised: 4/27/2020
  • Edge Bar Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Field Splice Weld Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Plate Angle Connection Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Section A-A Drawn on a Profile Grade
  • Format: pdf | dgn (MSC)
  • Revised: 6/5/2024
  • Plow Protection Plate Details
  • Format: pdf | dgn (MSC)
  • Revised: 11/14/2018

Substructure

  • Revision History
  • Format: pdf
  • Revised: 7/24/2024
  • Spread Footing Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Abutment Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/24/2024
  • Integral & Semi-Integral Details
  • Format: pdf | dgn (MSC)
  • Revised: 9/25/2023
  • Wall Joints
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Wingwall Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Retaining Wall Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Pier Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Approach Slab Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023

Superstructure - Deck

  • Revision History
  • Format: pdf
  • Revised: 8/9/2024
  • Deck Panel Details
  • Format: pdf | dgn (MSC)
  • Revised: 8/9/2024
  • Deck Panel Layout Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Cast-in-Place Deck Details
  • Format: pdf | dgn (MSC)
  • Revised: 11/3/2023
  • Deck Pour Sequence Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023

Superstructure - Steel Girder

  • Revision History
  • Format: pdf
  • Revised: 7/24/2024
  • Steel Girder Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/24/2024
  • Connection Details
  • Format: pdf | dgn (MSC)
  • Revised: 10/13/2023
  • Framing Plan Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Camber Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Field Splice Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
  • Drip Bar Details
  • Format: pdf | dgn (MSC)
  • Revised: 7/31/2023
 

Bridge Approach Curb

  • Revision History
  • Format: pdf
  • Revised: 9/27/2023
  • Bridge Approach Curb Details
  • Format: pdf | dgn (MSC)
  • Revised: 9/27/2023