Nighttime Full Closures – Southbound I-15 at 91

Nighttime Full Closures – Southbound I-15 at 91; Nights of Nov. 12, 13, 16 and 17

Courtesy of RCTC

The Riverside County Transportation Commission’s 91 Project in Corona will require nighttime full closures of southbound Interstate 15 at the 91, starting Nov. 12.

The roadway will close at 10 pm each night and reopen by 5 am the following morning on Nov. 12, 13, 16 and 17. The connecting ramps to the 91 will remain open during the closures.

The closures will allow crews to place temporary support materials for the construction of a bridge that, when completed, will serve as the new express lane connector between the 15 and the 91.

As a detour, motorists may travel east on the 91, use the McKinley Street off-ramp, and then enter the westbound 91 to reconnect to southbound I-15.

Motorists are reminded to allow extra travel time, follow the designated detour and watch for construction workers and signs. Motorists also are cautioned to use reduced speeds when approaching the detour route; speed limits on the 15 and the 91 are 55 MPH, and fines are doubled in construction zones.

The 91 Project is adding regular lanes, tolled express lanes, auxiliary lanes and direct express connectors from the northbound 15 to the westbound 91 and from the eastbound 91 to the southbound 15. Improvements to interchanges, ramps, lanes and surface streets also will be made along the 91 between the Riverside County/Orange County Line in Corona and Pierce Street in Riverside. The new lanes are expected to open in 2017.

For more information, visit or call the helpline at 877-770-9191.