Carlsborg Road #94270 From MP1.01 to Old Olympic Highway MP 1.76. Carlsborg Road is a major North-South route between US101 and Old Olympic Highway and serves the Carlborg UGA and surrounding area. Over time the road has been widened in areas for business access and is heavily traveled. It is in need of surface improvements. This project will provide for some pavement repair, HMA overlay, and and pavement markings.