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Overnight Full Closure of El Cerro Boulevard On-Ramp to Southbound I-680 in Danville

Published:

Beginning at 8 p.m. Friday, Oct. 9, until 8 a.m. on Saturday Oct.10.

Contra Costa County — Caltrans has updated the scheduled closures for sound wall replacement on El Cerro Boulevard along southbound I-680 in the Town of Danville. The agency will fully close the El Cerro Boulevard on-ramp to southbound I-680 and Lane 4 between the El Cerro Boulevard on- and off-ramps. To search for current District 4 lane closure information, please click here.

**All work is weather dependent and subject to change**

Closure Information

  • Locations: Lane #4 on Southbound I-680 and El Cerro Boulevard on-ramp to southbound I-680-Closed
  • Date: Friday, Oct.9 - Saturday, Oct. 10,
  • Time: 8:00 p.m. to 8:00 a.m.,

Detour Information

During the overnight closure of the El Cerro Boulevard on ramp and Lane #4:

  • Motorists traveling to southbound I-680 should use alternate nearby on-ramps, including Stone Valley Road or Sycamore Valley Road, as appropriate.
  • Prepare to merge and slow for the cone zone.

Changeable Message Signs (CMS) will provide advance notice for motorists traveling in the area. Be work zone alert, drive with caution through the work zone. For 24/7 traffic updates, follow 511.org on Twitter. For real-time traffic, visit Caltrans QuickMap.

Caltrans appreciates the public’s patience during this essential safety work.

Detour to SB I-680 from EB El Cerro Blvd.

Detour map for motorists coming from eastbound El Cerro Boulevard during the closure of the on-ramp to southbound Interstate 680. Motorists should: continue eastbound underneath I-680; turn left on northbound I-680 On Ramp; exit at Stone Valley Road (Exit 42B); turn left on Stone Valley Road; turn left onto the southbound I-680 On Ramp.

Detour to SB I-680 from WB El Cerro Blvd.

Detour map for motorists coming from westbound El Cerro Boulevard during the closure of the on-ramp to southbound Interstate 680. Motorists should: continue westbound towards I-680; turn right on the northbound I-680 On Ramp; exit at Stone Valley Road (Exit 42B); turn left on Stone Valley Road; turn left onto the southbound I-680 On Ramp.

For real-time traffic conditions, closures, and detours, visit Caltrans QuickMap or follow 511.org for 24/7 traffic updates.

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