MDT design staff is responsible for estimating construction costs for proposed projects. Interim guidance on cost estimating should be followed while the Department works on updating its Estimating Procedures and Guidelines. Please note that in the current MDT Procedures and Guidelines, some of the applications have changed, including: inflation, IDC, report formatting, etc. Cost estimating–related email may contain information that is supplemental to these guidelines. FWHA, AASHTO, and other states have additional information available as referenced below.

Please contact Brett Harris at 406-444-6944 with any questions or training requests.

To request additional bid items please contact Brett Harris.


MDT Procedures and Guidelines
Plastic Pipe Items Guidance
G-Match Guidance

AASHTOWare Project

AASHTOWare Project Login
AASHTOWare Project Estimation Guidance

Other Resources

2020 English Bid Item List
Guidance for Cost Estimation and Management for Highway Projects...
AASHTO Technical Committee on Cost Estimating