The California Department of Transportation (Caltrans) will close the following lanes, ramps, connectors and collector roads of the Antelope Valley Freeway (SR-14), the Foothill Freeway (I-210) and the Golden State Freeway (I-5) as part of a $161-million improvement project to construct High Occupancy Vehicle (HOV or carpool) lanes and a direct HOV lane connector at the I-5/SR-14 interchange from Sunday, August 23, through Friday, August 28.

Antelope Valley Freeway (SR-14) Closures

One lane of the Southbound SR-14 Connector to Southbound I-5

TIME: 5 p.m. to 11 p.m.

Southbound SR-14 Collector Road to Southbound I-5

TIME: 7 p.m. to 5 a.m.

Southbound SR-14 Connector to Southbound I-5

TIME: 11 p.m. to 4 a.m.

Foothill Freeway (I-210) Closures

Westbound I-210 Collector Road to Northbound I-5

TIME: 9 p.m. to 5 a.m.

Golden State Freeway (I-5) Closures

One lane of the Northbound I-5 Connector to Northbound SR-14

TIME: 5 a.m. to 1 p.m.

Southbound Truck Route Collector Road

TIME: 11 p.m. to 4 a.m.

Northbound Truck Route Collector Road

TIME: 11 p.m. to 5 a.m.

Up to three lanes of the Northbound I-5 Connector to Northbound SR-14

TIME: 11 p.m. to 5 a.m.

Southbound I-5 from the beginning to the end of the truck route

(Traffic will be detoured to the truck route.)

TIME: 11:59 p.m. to 4 a.m.

Northbound I-5 from the beginning to the end of the truck route

(Traffic will be detoured to the truck route.)

TIME: 11:59 p.m. to 5 a.m.

This project involves the construction of an elevated two-lane direct HOV connector at the I-5/SR-14 interchange and construction of HOV lanes in both directions of I-5 at the interchange. A direct HOV connector will allow for freeway-to-freeway transfers without exiting the carpool lane.

The project hopes to relieve congestion, improve traffic flow, enhance safety and improve traffic operations on both freeways at the interchange. The work is part of Caltrans’ effort to provide motorists with a seamless carpool lane network in California.

Work began in July 2008 and is on track to wrap up in the fall of 2012.