Rolling roadblocks were to begin Monday night on northbound Interstate 83 heading to eastbound Route 322 through the Eisenhower Interchange near Harrisburg.
PennDOT spokesman Mike Crochunis said the traffic delays are necessary in order to keep traffic off the bridge that carries Route 322 East through the Eisenhower Interchange while construction crews reset bridge bearings.
Operations to install new bridge bearings have been ongoing. Since there are four spans to the bridge, each span needs to be dealt with separately.
State police will start the rolling roadblock around midnight on I-83 North in the area of Exit 44-B at 19th Street leading to the Eisenhower Interchange, Crochunis said.
Several ramps accessing I-83 North and Route 322 East will be affected during the operation. Paxton Street to I-83 North will be blocked and southbound Eisenhower Boulevard to Route 322 East and I-283 North to I-83 South will be detoured.
The rolling roadblock on Route 322 should not take longer than 15 minutes, and the ramp blockages and detours should not last more than 30 minutes, Crochunis said.
If more time is necessary, construction crews will conduct a second rolling roadblock on I-83 North and traffic stoppage on Eisenhower Boulevard.