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Director's Office
Municipal Plaza Building
114 W. Commerce
San Antonio, Texas 78205
Main Line: (210) 207-8022
Fax: (210) 207-4406

Medians: Median Barriers

Median barriers are islands located in the center of a street that continue through an intersection to block left-turn and through movements.

Median Barrier


  • Prohibits dangerous turning movements and improves safety
  • Reduces the volume of vehicles on a cut-through route that crosses a major street


  • Limits turns to and from side streets for residents and emergency services
  • Some on-street parking may be eliminated on narrower streets

Eligibility Considerations

  • Street width must be minimum 32 feet wide
  • Cut-through traffic should represent 25 percent or more of the total daily street volume
  • Accident history that would support the installation of a median barrier
  • Signs and vegetation must conform to the Clear Vision Area ordinance
  • Neighborhood Association Landscape Maintenance Agreement required if landscaping is included


Reduced Speed One Star   Reduced Volume No Star
Enhanced Safety One Star   Maintenance Three Star

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