Clackamas County, Happy Valley invite comments on proposals to adjust transportation fees charged to developers

Clackamas County and the City of Happy Valley are each sponsoring an online open house and survey this April and May to give the public, developers and other interested parties the opportunities to learn about and comment on potential changes to Transportation System Development Charges (TSDCs) in both jurisdictions.

The Clackamas County open house/survey is available at; the Happy Valley open house/survey is available at Both open houses, which are open now through Friday, May 19, 2017 are also available through

TSDCs are one-time fees paid by developers when they build a new or expanded residential or commercial development. The fee is used to cover part of the cost of building transportation facilities — roads, sidewalks and other facilities that get people to where they need to go — to serve new development.

Currently TSDC fees in both unincorporated Clackamas County and the City of Happy Valley are based on the number of vehicle trips a particular land use generates. For example, a single-family home creates far fewer trips each day than a grocery store, so the TSDC fee for a grocery store is higher than for the home.

County and city staff have been working with representatives from the commercial and residential development community, home builders and engineering firms to help us make recommendations related to the future of TSDCs in Clackamas County and Happy Valley. Final decisions will be made by the Board of County Commissioners and the City Council by the end of 2017.

For more information, at Clackamas County, contact Senior Policy Analyst Jimmy Thompson at 503-742-4333 or At the City of Happy Valley, contact Michael D. Walter, AICP at 503-783-3839 or