Project news

Overview

We repaved nearly 6 miles of the right lane of southbound I-405 from Coal Creek Parkway Southeast to State Route 900 as well as a portion of the on- and off-ramps along that stretch of interstate. Large trucks primarily drive on this right outside lane. Their weight wore down the asphalt more quickly than smaller cars and trucks, which tend to use the two left lanes in this area. The use by large trucks sped up the development of cracks, ruts and potholes since the lane was repaved in 2006. Without new pavement, the safety of the roadway in that lane may have been compromised before the I-405 Renton to Bellevue Project can realign and expand this part of I-405.

Needs & benefits

• Economic: these repairs will preserve the lane and protect the supporting layers of the road beneath.
• Safety: repaving will remove the potholes and ruts where water can collect.
• Preservation: the new pavement adds structural support to the existing roadway until the I-405 improvement project begins.