A transition bridge connecting northbound Interstate 15 to the westbound Riverside (91) Freeway in Corona will be shut down Sunday morning for a Caltrans project, and motorists were advised to expect a detour and delays.

Agency officials said a survey crew will gather data between 5 a.m. and 10 a.m., requiring the entire connector to be taken out of service.

Northbound motorists trying to reach the westbound 91 will be detoured off of I-15 via the eastbound 91 exit ramp, going east on the freeway until McKinley Street, where they will be able to reverse course and join the westbound 91, according to Caltrans.

More information about the closure is available at www.caltrans8.info.

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