FARMINGTON – State transportation workers plan to restrict Route 133 traffic on Friday to one lane on Hamlin Bridge, which carries the road over Wilson Stream.

Repairs to the stream bed are going to be made.

The bridge is just south of the intersection of routes 2 and 4.

“We need to close the lane to provide working space for the supplies and equipment we need to fill a scour hole which has developed in the stream bed under the northerly bridge abutment,” said Carl Edwards of the Maine Department of Transportation bridge maintenance section in a news release.

“The scoured area will be filled with grout to assure the continued integrity of the bridge,” he said. “It’s part of our ongoing bridge maintenance efforts.”

The repair effort will include people in the water guiding the placement of the grout, plus support equipment and workers on the bridge itself.

“At times things may look rather quiet on the bridge but our folks in the water will be busy and working hard,” he said.

Drivers using the bridge on Friday should expect to encounter alternating one-way traffic with flaggers regulating the flow of traffic on the remaining lane, he said.

“We realize the lane closure may create an inconvenience to some people, but its maintenance work that needs to be done,” Edwards said.