Schedule

55-Hour Closure of 101 Freeway for Concrete Arch Pour

Freeway will be closed between Friday April 30th at 10 p.m. and Monday May 3rd at 5 a.m.


As part of the Bureau of Engineering's on-going construction of the $588 million Sixth Street Viaduct Replacement Project, Engineering and its construction partners, Skanska Stacy and Witbeck (SSW), will require a 55-hour, extended closure of US Rte 101 (101 Freeway) to safely construct two arches over the freeway. 

The closure begins on Friday. April 30th at 10 p.m. and extends through Monday May 3rd at 5 a.m. 

Additional Work by Caltrans

The final 14 hours of the 55-hour closure will allow California Department of Transportation District 7 crews to perform multiple maintenance activities, including weed and graffiti removal, guard rail and sign repairs, pavement repairs and pothole filling. Also, a contractor will repair broken slabs in the southbound lanes.

Location of 55-Hour Closure

The closure will center around the eastside of the viaduct construction site in Boyle Heights, closing a 2.5-mile section of US Rte 101 from the 10/101 split to the 5/10/101 interchange just east of downtown Los Angeles. In addition, motorists travelling west on Rte 60 from the Pomona area will not be able to access US Rte 101. 

Traffic detours will be as follows – SEE DETOUR MAP BELOW

When traveling N/B 5 from the Orange County area approaching the 5/10/101 Interchange : Exit to N/B 101 closed

  • Exit to W/B 10 open
  • Exit to N/B 5 open

Primary Detour: N/B 710 to W/B 10

Secondary Detour: W/B 10 to N/B 110

When traveling W/B 60 from the Pomona area approaching 5/10/101 Interchange:  

  • Exit to N/B 101 closed
  • Exit to W/B 10 open
  • Exit to N/B 5 open

Primary Detour: N/B 710 to W/B 10

Secondary Detour: W/B 10 to N/B 110

When traveling S/B 101 from the San Fernando Valley area approaching the 10/101 Split: 

  • Exit to S/B 101 closed
  • E/B 10 open

Primary Detour: S/B 110 to E/B 10

Secondary Detour: E/B 10 to S/B 710

closure map only

CONCRETE ARCHES

The Sixth Street Viaduct includes ten sets of LED-lit, color-changeable arches that will comprise the “Ribbon of Light” design. The arches are 10 feet wide, with a typical arch span of 300 feet. Each arch takes 260 cubic yards of concrete to construct or about 65 trucks of concrete. In order to keep the concrete cool enough, it is delivered to the site and then injected with liquid nitrogen to be close to ambient temperature. This reduces the potential for concrete cracking. 

 

connect