Interstate Maintenance

The Interstate Maintenance program provides funding for resurfacing, restoring, rehabilitating, and reconstructing most routes on the Interstate System. The program is very similar to the Preservation program; however, funds in the program must be spent on the interstate system. A significant portion of the Region’s Interstate Maintenance and Preservation projects are in urban areas where traffic conditions affect the hours available for construction and the mobilization of construction teams during offpeak hours. This in turn leads to higher costs for construction in urban areas compared to projects in rural areas.

Potential projects are identified by the Statewide Interstate Maintenance Program Manager in Salem based on interstate pavement conditions and needs statewide. Potential projects are then forwarded to the Regions to develop cost estimates.

Projects on the Draft 100% List for the 2019-2021 selection cycle:

The 150% List shows additional projects that were removed from further consideration. Only projects on the 100% List will move forward to design and/or construction.
The Region 1 STIP Book provides details on 2016-2018 STIP cycle project selection and showcases Region 1 projects that were added to the STIP during the update. The projects in the Region 1 STIP Book were added to the 2015-2018 STIP (current) which was approved by the Oregon Transportation Commission in December 2014 and approved by the US Department of Transportation in May 2015.
Since the adoption of the 2015-2018 STIP projects may have changed, been added, or removed. The official approved ‘2015-2018 Final STIP’ and ‘2015-2018 Final STIP as Amended’ are available on ODOT’s Statewide STIP website.