Southeast Sixth Street extension inside access

This alternative elevates and extends Southeast Sixth Street over 114th Avenue Southeast and I-405 to Lake Hills Connector and builds direct I-405 express toll lane access ramps to and from the south. It provides bike lanes and sidewalks on the new east-west connection.

Alignment with adopted plans and policies
Travel time (compared to no build)
Access and safety
Impact on property development
Cost
  • Adds new access to I-405, multimodal with east-west connection
  • East Main transit-oriented development plan did not envision ramps at Southeast Sixth Street; requires policy amendment
  • Likely temporary impacts to wetlands during construction
  • Permanent impacts from shade, lighting, noise and water quality
  • Saves 1,400 daily person hours
  • Reduces intersection delay by seven percent
  • Includes separate bike lanes and sidewalks along north side of Southeast Sixth Street extension over I-405
  • Extending Southeast Sixth Street to Lake Hills Connector over I-405 removes direct connection between 112th and 114th avenues southeast
  • Planter strip and potential parking lot impacts along 112th, 114th, and 118th avenues southeast and Southeast Sixth Street
  • Added access to I-405 supports future economic development
 $325 million
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Thank you for your interest in the South Downtown I-405 Access Study. The consultation period for this online open house has concluded.