Drainage Tunnel and Pump Station Segment
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Drainage Tunnel and Pump Station Segment

Drainage tunnel and pump station segment map along I-35
Drainage tunnel and pump station map

Segment overview

Install two drainage tunnels and a pump station to improve stormwater management along the corridor. Access shafts will also be added along I-35 to ensure proper maintenance and operational access to the new infrastructure.

Major impacts/activity

  • Northbound I-35 frontage road between 11th Street and 12th Street right lane closed through early 2026, weather permitting.
  • The northbound I-35 Cesar Chavez entrance ramp will be closed through early 2026, weather permitting. Drivers on northbound I-35 frontage road will use the entrance ramp between 8th and 11th Street.
  • The eastside Levander Loop pedestrian trail from just north of the Montopolis Bridge to just south of East Cesar Chavez Street will be closed through 2028, weather permitting.
I-35 CapEx Central Detour; Levander Loop pedestrian sidewalk closure map
  • The southbound I-35 frontage road at River Street will be closed through mid-2028, weather permitting. Drivers will detour to East Avenue and River Street to access the southbound I-35 frontage road. Eastbound and westbound River Street at I-35 will be reduced to one lane in each direction.
CapEx Central detour, Southbound I-35 frontage road closure at River Street

Schedule

  • Construction start: mid-2025
  • Anticipated construction completion: 2029, weather permitting

Contractor

  • SAK/Shea JV Construction

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