Route 851 off the Interstate 83 exit for Shrewsbury is now a single lane, according to PennDOT.

The state Department of Transportation said in a news release that Route 851 between Wolfe Road and I-83 will be a single lane and shifted into the center-turn lane for construction.

The new, long-term traffic pattern began Wednesday, June 5.

The work is part of a diverging diamond interchange construction on I-83 at that exit, PennDOT said.

Route 851 is expected to be reconstructed to allow for four lanes of traffic, according to the release.

Additionally, drivers may see single-lane restrictions on I-83 in both directions near the exit between 9 p.m. and 6 a.m. while work is being done.

PennDOT expects the diverging diamond interchange construction to be completed by summer of 2021.

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