Underseals

Status:  Complete
Report Date:  10/07/2025

Summary:

Underseals, often referred to as Texas underseals because of their origin there, are being used in other regions, including Minnesota. However, their use has been limited and relatively undocumented. A few agencies in Minnesota, such as Hennepin County, City of Eden Prairie, and City of Lakeville, have implemented underseals on select projects. The objective of this project was to survey Minnesota and neighboring state agencies - using MnDOT’s National Road Research Alliance network to develop a database of bituminous underseal projects. The study aimed to synthesize information on usage, cost, timing, benefits, drawbacks, and performance.

Final Deliverables:


Related Materials:


Related Research:

Project Personnel:

Principal Investigator:  Michael Marti

Co-Principal Investigator:  Susan Miller

Technical Liaison:  Benjamin Worel

Project Coordinator:  David Glyer

Panel Members: 
Alex Jordan - 
Andrew Wrucke - University of Minnesota LTAP
Ashton Kogel - City of Eden Prairie
Carter Schulze - City of Eden Prairie
Chad Wilde - Blue Earth County
Jeremy Gilb - Chippewa County Highway
Joel Ulring - Materials & Road Research
Joseph Podolsky - Materials & Road Research
Josh Peterson - City of Coon Rapids
Marcus Culver - City of Brooklyn Park
Mark Ray - City of Burnsville
Paul Nolan - Materials & Road Research
Ryan Glynn - Blue Earth County
Steve Ferraro - City of Lakeville
Timothy Clyne - Metro District
Todd Broadwell - District 8