Quadra Engineering Inc. of Sequim, which has offered professional civil engineering services for the past 21 years, has joined Northwestern Territories Inc. of Port Angeles and Port Townsend.

Quadra staff continue to provide engineering and project management through NTI. Quadra’s senior owner, Harold T. Andersen, P.E., will be based in NTI’s office at 914 Washington St., Suite 6, Port Townsend (360-379-5430). Quadra senior partner Jay M. Ward will be in NTI’s Port Angeles office at 717 S. Peabody St. (452-8491). Existing Quadra projects continue to be managed by Andersen and Ward with additional technical resources available at NTI.