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Update on I-5/Magic Mountain Road Improvements

The latest, according to a Caltrans release:

The construction for the Magic Mountain Parkway / I-5 interchange improvements is progressing on schedule.  The general contractor, Security Paving Construction, is continuing the construction of the rectangular shaped storm drain box, which is located west of The Old Road.  The completion of the entire storm drain box and the outlet structure should take approximately 12 months with minimal utility conflicts.

Currently, construction of the retaining walls along the southbound I-5 on ramp at Magic Mountain Parkway is ongoing, with the anticipated completion date slated for the end of this year.  Construction of the retaining walls for the southbound off ramp will take place the beginning of 2007. This work will be followed by the widening of portions of the southbound on and off ramps.  

AT&T will be conducting underground utility work unrelated to this project.  They will be closing some of the existing lanes for westbound Magic Mountain Parkway between Tourney Road and The Old Road.  The work will entail three phases, which will begin in early December, 2006.

There are a total of 11 phases for these improvements.  Currently, we are on Phase 2 of the construction and this phase alone will take approximately 12 to 15 months to complete.  During this phase, existing ramps, at least one lane, and local roadways (Magic Mountain Parkway and The Old Road) will be open for vehicular traffic.

Please check the City of Santa Clarita's website at or the project hotline (661) 290-2297, for any extended major lane closures, detours, or news associated with this project.

Thank you for your continued patience and support!