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Long-Term Closures of Northbound I-405 Connectors to Eastbound and Westbound I-105

Project Description:

HAWTHORNE - The California Department of Transportation (Caltrans) closed the connector ramp from northbound I-405 (San Diego Freeway) to westbound I-105 (Century / Glenn Anderson Freeway) at 10 p.m. on January 2, 2018. The ramp is expected to remain closed until April 1, 2018. Construction crews may work up to seven days per week, 12 hours per day from 7 a.m. to 7 p.m. through the end of April. There will be occasional overnight construction. Expect noise from the demolition work, machinery and construction vehicles during this time.

The work involves reconstructing distressed roadway and the embankment along the connector. Crews will excavate pavement to place geo fabric to further help stabilize the slope, install a new drainage system and repave the roadway with concrete slabs to enhance safety and create a smoother drive for motorists. This long-term connector closure is necessary to provide a safe work zone for construction crews and motorists.

The northbound I-405 connector to eastbound I-105 was closed for 14 weeks for reconstruction. It re-opened at 5 a.m. on January 3, 2018. This northbound I-405 connector ramp to eastbound I-105 will close overnight occasionally between now and the end of April and will also close for one 55 –hour weekend before the end of April. When it is closed, use the eastbound detour map below.


Westbound Detour Route:

From northbound I-405, exit onto Imperial Highway or Century Blvd. westbound. Drivers on the northbound I-405 originating from points south of I-110 (Harbor Freeway) are advised to take northbound I-405 to northbound I-710 or northbound I-110 to westbound I-105 into LAX.



Eastbound Detour Route:

From northbound I-405, exit Imperial Highway, drive east to arrive at I-105 at the Freeman Ave. on-ramp.



Detour signs will be posted. Motorists should anticipate delays, and are encouraged to plan ahead 
and use alternate routes. For real time freeway traffic information, please visit Caltrans 

Photos: Rebuilding northbound I-405 connector to westbound I-105




The long-term connector closure is part of a $4.3 million roadway and embankment repair project on both connectors of I-105, in the cities of Hawthorne and El Segundo. Griffith Company is the contractor on this project which began in March 2017, and is expected to complete fall, 2018. Caltrans reminds motorists to
"Be Work Zone Alert."

Total Programmed Project Costs:$4.385 Million

Project Contact:

Marc Bischoff
Public Information Officer
Twitter: @CaltransDist7


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