FREEWAY FORECAST

Road closures and repair work on freeways and surface streets:

On-line help: Freeway traffic information is also available on the CalTrans World Wide Web site. It updates every minute. The address is:

https://www.scubed.com/caltrans/

Santa Ana Freeway (I-5)

* At Alton Parkway: Various lanes will be closed in each direction between Alton Parkway and the El Toro Y from 11 p.m. to 5 a.m. daily through January.

* At Orangethorpe Avenue: The northbound Orangethorpe Avenue onramp will be closed beginning midnight Wednesday and continuing through April.

* At Magnolia Avenue: The southbound Magnolia Avenue onramp will be closed through September.

* At Riverside Freeway (91): The northbound connector to the westbound Riverside Freeway (91) will be closed from midnight to 5 a.m. Monday and Tuesday.

San Diego Freeway (I-405)

* At MacArthur Boulevard: The northbound and southbound MacArthur Boulevard onramp and offramp will be closed from 9 a.m. to 3 p.m. daily through May.

* At Costa Mesa Freeway (55): Various northbound and southbound lanes will be closed between the Costa Mesa Freeway and MacArthur Boulevard from midnight to 5 a.m. through May.

Corona del Mar Freeway (73)

* At University Drive: The northbound University Drive onramp will be closed through December.

Riverside Freeway (91)

* At Santa Ana Freeway (I-5): The westbound connector to the northbound Santa Ana Freeway (I-5) will be closed from midnight to 5 a.m. Monday and Tuesday.

Surface Streets

* MacArthur Boulevard: Various lanes will be closed in each direction between Main Street and Michelson Drive through January.

* Warner Avenue: Various lanes will be closed in each direction between Harvard Avenue and Jamboree Road through January.

* Michelson Drive: Various lanes will be closed in each direction between Jamboree Road and Harvard Avenue through July.