Drainage Tunnel and Pump Station Segment
I-35 Capital Express Central Project
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.

- 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.

Schedule
- Construction start: mid-2025
- Anticipated construction completion: 2029, weather permitting
Contractor
- SAK/Shea JV Construction