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Caltrans announces full closure of State Route 99, June 11-16

Caltrans will be closing State Route 99 for 99 hours to replace a bridge deck 21st Avenue in Sacramento. The closure will last from 8 pm Friday, June 11 to 4 am Wednesday, June 16.

Sacramento County — The California Department of Transportation (Caltrans) is scheduled to close northbound and southbound State Route 99 from 47th Avenue to the U.S. Highway 50 Connector.

The closure is scheduled to begin 8:00 p.m., Friday, June 11 until 4:00 a.m., Wednesday, June 16.

The closure is necessary for crews to safely replace the bridge deck on SR-99 at 21st Avenue. Caltrans is taking preventative measures to fix California’s aging infrastructure, including extending the service life of this 62-year-old bridge. To avoid extensive traffic shifts and lane reductions that could last up to six months, crews are using innovative accelerated bridge construction techniques to complete the work as quickly as possible. The work is imperative to continue to provide a safe route.

Crews are also closing the mainline westbound Business 80/Capital City Freeway to southbound SR-99, and the westbound and eastbound US-50 connector ramps to southbound SR-99. In addition, the following ramps are scheduled to be closed:

  • The on-ramp from 16th Street to eastbound US-50
  • The on-ramp from 29th Street/H Street to westbound Business 80/Capital City Freeway
  • The on-ramp from 29th Street/N Street to westbound Business 80/Capital City Freeway
  • The on-ramp from 29th Street/T Street to southbound SR-99
  • The on-ramp from Broadway to southbound SR-99
  • The off-ramp from southbound SR-99 to 12th Street
  • The off-ramp from northbound SR-99 to 12th Street
  • The on-ramp from 14th Avenue/30th Street to southbound SR-99
  • The on-ramp (slip) from Fruitridge Road to northbound SR-99
  • The on-ramp (loop) from Fruitridge Road to northbound SR-99
  • The on-ramp (slip) from East 47th Avenue to northbound SR-99
  • The on-ramp (loop) from West 47th Avenue to northbound SR-99

These routes will be unavailable during the closure and motorists will be rerouted. Use Interstate 5 and avoid SR-99 for the 99 hours. Consider using these alternate routes:

Traveling north from San Joaquin County (Stockton and Lodi) to Sacramento

  • Use SR-4/Crosstown Freeway to northbound I-5 or
  • Use SR-12 to northbound I-5.

Traveling south from Sacramento to San Joaquin County

  • Use southbound I-5.

Traveling north from Lodi or Galt to Sacramento

  • Use SR-104/Twin Cities Road to northbound I-5.

Traveling north from Wilton or Elk Grove to Sacramento

  • Elk Grove Boulevard to northbound I-5 or
  • Laguna Boulevard/Bond Road to northbound I-5 or
  • Cosumnes River Boulevard/Calvin Road to northbound I-5.

Traveling south from Sacramento to Elk Grove, Wilton or Galt

  • Use southbound I-5.

Traveling north from Florin or South Sacramento to Downtown/Midtown Sacramento

  • Stockton Boulevard/Mack Road to northbound I-5 or
  • Florin Road to northbound I-5 or
  • 47th Avenue to northbound I-5.

Traveling south from westbound Business 80 (North Sacramento area or Cal Expo) towards San Joaquin County

  • Use westbound US-50 to southbound I-5.

Traveling east from Davis or West Sacramento towards San Joaquin County

  • Use eastbound US-50 to southbound I-5.

Traveling south from Airport, Natomas or westbound I-80 towards San Joaquin County

  • Use southbound I-5.

Traveling west from El Dorado, Folsom or Rancho Cordova towards San Joaquin County

  • Use westbound US-50 to southbound I-5.

Plan ahead, expect delays and consider alternative methods of transportation.

Sacramento Regional Transit (SacRT) is providing free light rail service during the closure beginning June 12 through June 15. To ride light rail for free, riders must show the fare inspector a free rider flyer, which will be available at FixSac99.com or sacrt.com/fixsac99 starting June 1. For information on routes, station locations and schedules visit www.sacrt.com.

The 21st Avenue Undercrossing was built in 1959 and widened in 1974. There is currently corrosion on the surface deck, concrete spalling, cracks, the joint seals need to be replaced, and the bridge deck has begun to deteriorate due to wear and tear from high traffic volumes, freight movement, weather and age. Caltrans is replacing the bridge deck before emergency operations are necessary.

The bridge deck replacement is part of the $5.9 million SAC 99 21st Avenue Project, which includes replacing the sound walls, the concrete median barrier and installing brighter lighting for the 21st Street Undercrossing. The project is possible thanks to funds from Senate Bill 1 (SB 1) and expected to be completed by the fall of 2021. The contractor for the project is Bridgeway Civil Constructors, Inc.

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