CATHLAMET, Wash. - One lane of Washington State Route 4 between Cathlamet and Longview reopened to traffic this morning, but only for short periods throughout the day.

A rock slide closed the highway near the town of Stella Feb. 4, and a contractor has been hired to clear unstable rock from the slope above the roadway.

To accommodate motorists, one lane of the highway will be open for 15 minutes at a time every two hours on the hour between 8 a.m. and 4 p.m. The lane will be open at night from 5:30 p.m. to 8 the next morning.

Because only one lane will be open, and only for short periods during the day, motorists should expect delays. Flaggers will be on the site and message boards will alert drivers.

The Puget Island Ferry continues to operate 24 hours a day and free of charge during the highway closure. Vehicle restrictions were lifted last Friday, and trucks up to 55 feet long and 40 tons are again allowed on the ferry.

A shuttle service has been set up to carry people between Cathlamet and Longview on the ferry. The shuttle operates Monday through Friday from 6 a.m. to 6 p.m. Reservations are recommended and can be made by calling (360) 957-2461 for the Cathlamet to Westport service or (360) 749-5415 for the Longview to Westport service.