Press Releases

“101SlowJam” Ends Ahead of Schedule; 101 Freeway Opens at 10 a.m.
City Removes First Section of Sixth Street Viaduct;
Demolition Will Continue for Nine Months

February 7, 2016

LOS ANGELES (February 7, 2016) – Sunday morning, the City of Los Angeles’ Bureau of Engineering announced that the 101 Freeway re-opened at 10 a.m., four hours ahead of schedule. The freeway, which was closed at 10 p.m. on Friday night, allowed workers to demolish the first section of the Sixth Street Viaduct.

The freeway closure was originally scheduled to last 40 hours and end at 2 p.m. Sunday. Due to the speed of the demolition, the California Department of Transportation (Caltrans) was able to re-open the freeway at 10 a.m.

"Los Angeles gets things done. And the '101 Slow Jam,' which is ending hours ahead of schedule, is a testament to what can be accomplished when we get into the groove, pull together, and plan ahead," said Mayor Eric Garcetti. "I am grateful to our crews for all of their hard work this weekend, and to the tens of thousands of Angelenos who helped make the freeway closure go even more smoothly than we expected. That was one fast Slow Jam."

The closure, dubbed the “101SlowJam”, shut down a 2.5 mile section of the 101 Freeway from the 10/101 split to the 5/10/101 interchange on the east side of downtown Los Angeles.

“We were able to complete the work considerably ahead of schedule and we did it in the safest way possible for our workers and for those in the project area,” said Gary Lee Moore, City Engineer.

Traffic throughout the closure was as expected for a weekend in downtown Los Angeles, said Carrie Bowen, Director of Caltrans District 7.

“Our detour plans worked well and the alternate routes were able to handle the additional traffic,” Bowen said. ”We saw periodic delays of 10-20 minutes in some areas on Saturday afternoon. However by evening, most traffic was flowing at close to normal levels.”

Caltrans was able to do maintenance work on the closed stretch of the freeway during the closure including weed removal, restriping, drain clearing and surface repairs.

Workers demolished the viaduct using “breaker hammers” to break the concrete apart. The steel rebar will be recycled. After demolition of the bridge deck and the three supporting columns, the debris was removed, along with the two feet of dirt that was laid down to protect the surface of the freeway.

“We are extremely grateful to the community for their patience throughout the weekend,” added City Engineer Moore. “We know that a closure of this size and a major construction project is difficult for everyone in the area.”

Efforts to alert the public to the upcoming closure included a #101SlowJam video by Mayor Eric Garcetti, backed up by local Roosevelt High School Jazz Band. The video, released by the Mayor’s Office on Thursday night, had nearly 2 million views on social media in its first 27 hours.

Demolition will continue for nine months. The new viaduct will be completed late 2019.
Mary Nemick, Director of Communications, Bureau of Engineering: 213-485-5085 or


View the full press release here



Media Opportunities for “#101SlowJam”, Downtown LA 101 Freeway Closure - Friday February 5th at 10 p.m. to Sunday Feb. 7th at 2 p.m.

February 2, 2016

"The City of Los Angeles and its partner agencies are offering media opportunities to report on the 40-hour closure of the 101 Freeway that will take place Friday, Feb. 5th at 10 p.m. to Sunday Feb. 7th at 2 p.m. This 2.5-mile closure through Downtown LA will allow the Bureau of Engineering to begin demolition of the Sixth Street Viaduct by removing a 220-foot section located over the freeway."

View the full media advisory here



City to Close US Rte. 101 This Weekend in Downtown LA to Demolish Section of Sixth Street Viaduct
40-Hour Closure Starts Friday Feb. 5th at 10 p.m. and ends on Sunday Feb. 7th at 2 p.m.

February 2, 2016

"The City of Los Angeles’ Bureau of Engineering will close US Rte 101 through downtown Los Angeles for 40 hours this coming weekend, to demolish a section of the Sixth Street Viaduct. The 101 Freeway will be closed starting on Friday Feb. 5th at 10 p.m. and ending on Sunday Feb. 7th at 2 p.m."

View the full press release here



Final Closure of Sixth Street Viaduct Scheduled for January 27th
Demolition Triggers 40-Hour Shutdown of 101 Freeway
Friday February 5th at 10 p.m. to Sunday February 7th at 2 p.m.

January 21, 2016

"LOS ANGELES (January 21, 2016) -- The City of Los Angeles’ Bureau of Engineering announced today that the final closure of the Sixth Street Viaduct is scheduled to take place early Wednesday January 27th.  The Sixth Street Viaduct will be closed from Mateo Street on the west and Boyle Avenue on the east to allow for demolition of the existing viaduct and construction of the new viaduct.  Detour signage will be in place to assist the public in finding alternate routes around the construction closure.  

The 84-year old Sixth Street Viaduct suffers from a chemical deterioration of the bridge’s concrete and needs to be replaced.  Demolition is expected to take nine months and construction of the new viaduct will be completed in late 2019.

40-Hour Closure of 101 Freeway

To allow for demolition of the section of the viaduct over US Rte 101 on the east side of the structure, the freeway will be closed for 40 hours, starting on Friday Feb. 5th at 10 p.m. and ending on Sunday Feb. 7th at 2 p.m."

View the full press release here



New Sixth Street Viaduct Reaches Important Milestones

July 2, 2014

"Bridge work advances as design milestone is met; international contemporary artist with local roots selected for public art component; numerous intersection upgrades planned and community improvements, such as dedicated bike lanes, increased pedestrian space and a soccer field take shape."

View the full press release here

View updated Viaduct renderings here:  Rendering 1 and Rendering 2



City of Los Angeles Takes Significant Step Forward on the Sixth Street Viaduct Replacement Project and Recommends Skanska/Stacy and Witbeck Joint Venture as Project’s General Contractor 

July 22, 2013

"City of Los Angeles officials announced a major step forward in the replacement of the Sixth Street Viaduct, one of the city’s most famous bridges. After a comprehensive review of proposals, the Bureau of Engineering (Engineering) has recommended the joint venture of Skanska/Stacy and Witbeck to construct the new $400 million Sixth Street Viaduct Replacement Project. In a forward-thinking effort to achieve a high quality design and a more efficient construction process, Engineering will utilize the CMGC method to construct the new bridge. Under this method, the contractor will work hand-in-hand with Engineering and project design firm HNTB Inc. during the design phase. This is the first time this construction method has been used by Engineering and the Department of Public Works."

View the full press release here



Mayor Villaraigosa and Councilmember Huizar Announce Winner of International Design Competition for New 6th Street Bridge

October 19, 2012
“The new Sixth Street Bridge will be a world-class, iconic piece of Los Angeles infrastructure because of this international design competition and the community’s involvement every step of the way,” said Mayor Villaraigosa. “Los Angeles is where the world creates and innovates, and the selection of HNTB as the winning team reaffirms our ability to cultivate and attract the best and brightest in architecture, design, and engineering right here in Los Angeles.”

View the full press release here

View a photo here



View the presentation slides, poster boards, and animated renderings from the winning design firm, HNTB below. (Click on the images below to view):

HNTB's Presentation Slides

HNTB's Poster Boards

HNTB's Animated Rendering




Three Firms to Present Sixth Street Viaduct Design Concepts at Public Briefings September 12, 13, 17 and 18

August 30, 2012

"The City of Los Angeles, Bureau of Engineering will host a series of community presentations to introduce design concepts offered by  three firms competing for the Sixth Street Viaduct Replacement Project contract. The three finalists are AECOM, HNTB and Parsons Brinckerhoff."

View the full press release here



Three Firms Selected to Compete in the Viaduct Design Competition

July 27, 2012

City Engineer Gary Lee Moore, P.E. announced that the following three firms have been selected to participate in a design competition for the Sixth Street Viaduct Replacement Project:

View the press release here




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