Montana Department of Transportation

Reference Materials

Latest Updates

The Railroad Underpass-Laurel project was rejected on April 28th, 2015. This project will be re-advertised on Friday, May 1st, 2015. It will be included in the May, 14th, 2015 letting.

Detailed Drawings
The Detailed Drawings have been updated in their entirety effective with the September 11, 2014 bid letting. The new drawings contain both metric and English dimensions. This has eliminated the need for a separate English or metric version of each drawing. Numerous other changes have been made with this release. Users are encouraged to review the new drawings prior to bidding or construction. Hard copies are available for purchase from the Contract Plans Bureau, 406-444-6215 or .

All drawings are available on the MDT website here: DETAILED DRAWINGS
Below are some of the major changes, not all changes are mentioned:
* Section 501, PCCP details.
* Section 606, Barrier rail concrete and connections.
* Section 607, Fencing dimensions.
* Section 608, Ramp Slope
* Section 620, Pavement marking dimensions.
The Detailed Drawings contain a mixture of 8 1/2 X 11 and 11 X 17 sheets. If a hard copy is ordered, the user will need to hand collate the drawings in the correct order. Our printing process does not allow for an automated collating of the different sized sheets.
2014 Edition Standard Specifications Bound book copies, as well as 3 ring binder copies, of the 2014 spec book are now available for purchase from the Contract Plans Bureau, 406-444-6215 or .