The Oregon Department of Transportation (ODOT) and Clackamas County are proposing to build a new, east-west oriented, limited-access highway between I-205 and the Rock Creek Junction the stated of which is to address the existing congestion and safety problems in the OR 212/224 corridor between its interchange with I-205 and Rock Creek Junction, and to serve the growing demand for regional travel and access to the state highway system.  On October 13, 2008, the Supplement Draft Environmental Impact Statement (SDEIS) was issued for the project.

However, the United States Environmental Protection Agency in a December 12, 2008, letter to Ms. Michelle Eraut of the Federal Highway Administration and Ms.  Emily Moshofsky of the Oregon Department of Transportation expressed concerns about the impacts to locally important habitats and open space, as well as wetlands.  Furthermore, EPA stated that it has concerns regarding environmental justice, stimulated travel and growth effects, air toxics and greenhouse gas emissions, ground water resources, and water quality and quantity impacts that could affect threatened fish species.  The EPA gave the SDEIS a rating of “EC2,” which means that the EPA believes that the draft EIS does not contain sufficient information for EPA to fully assess environmental impacts that should be avoided in order to fully protect the environment.