PORT ANGELES — Traffic should be restored to normal on U.S. Highway 101 by about 3 p.m. today after state Department of Transportation workers finish filling a sinkhole at the city’s First Street-Lincoln Street intersection, Transportation Maintenance and Operations Superintendent Steve Russell said around noon.

A 20-foot-by-14-foot void, discovered Monday evening under the intersection at which U.S. 101 makes a critical turn in central Port Angeles, prompted officials to close the northbound lane of Lincoln Street south of First Street.

“We don’t know what caused it,” Russell said as a mixture of concrete and gravel was being poured into the sinkhole.

The hole was 8 feet deep in some spots, city Public Works & Utilities Director Glenn Cutler said.

A fix would ensure the city’s Fourth of July parade will proceed as planned Wednesday afternoon, Port Angeles Regional Chamber of Commerce Executive Director Russ Veenema said.

Plans had called for some larger trucks to join the procession after the parade began because they would have had difficulty negotiating the left turn from Lincoln onto First, Veenema said.

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Senior Staff Writer Paul Gottlieb can be reached at 360-452-2345, ext. 5060, or at paul.gottlieb@peninsuladailynews.com.