I-205 - Ramp to SR 14 Zipper Merge Pilot Project - Project map

I-205 - Ramp to SR 14 Zipper Merge Pilot Project Location

In summer 2019, the Washington State Department of Transportation will implement a congestion reducing pilot project on State Route 14, in Clark County.

During peak, evening travel times, traffic from I-205 merging on to eastbound SR 14 experiences heavy congestion, causing significant backups, delays, and an increased potential for crashes. The pilot project is intended to alleviate traffic backups during peak evening travel times by encouraging travelers in the merge lane to remain in this lane until they reach the end of the merge lane; the point where traffic can take turns merging into the thru lane with the flow of traffic. This type of late merge is also known as "zipper merging."