Vehicles can reach businesses using a temporary road on the east side of 4th St.
4th St. bridge closed and I-90 westbound ramps at 4th St. closed
Scheduled through fall 2025
I-90 westbound ramps at 4th St. NW will remain closed until the 4th St. bridge construction is completed in fall 2025.
The detour for I-90 westbound traffic is to take the 14th St. Northwest/Hwy 218 north exit (Exit 177).
On-ramp to I-90 westbound from 6th St. NE closed
Scheduled through fall 2025
Detour for I-90 westbound on-ramp is to travel eastbound on I-90, exit at Exit 179 (11th Dr. NE), cross over and return to I-90 westbound.
The off-ramp from I-90 westbound to 6th St. NE is open and I-90 eastbound ramps are open.
I-90 westbound lanes are closedbetween Oakland Ave. West and 11th Dr. NE
I-90 traffic will be in the eastbound lanes with eastbound and westbound traffic using single lanes adjacent to each other.
About this project
I-90 bridge reconstruction project map
Summary of work
There are six sites along I-90 in Austin that have bridges that are scheduled to be replaced or repaired 2024 to 2026. In a separate, earlier, project, a bridge at 11th Dr. NE was replaced in 2017 and a bridge at 28th St. NE was replaced in 2021.
Which bridges are part of this project?
There are six sites along I-90 in Austin involved in the project with each having different needs.
2024-2025
Oakland Ave. W / Hwy 105
A new bridge was constructed at Oakland Ave. (Hwy 105) over I-90. The new bridge includes a wide walkway, which will connect to a future city/county trail. It opened to traffic on Oct. 18, 2024. View the design.
4th St. / Co. Rd. 45
A new interchange will be constructed to replace the current interchange. The new layout will provide for safer walkway crossings of I-90 and improved traffic flow. 4th St. will be closed for construction starting in the fall of 2024 and through the majority of the 2025 construction season. This construction is currently scheduled for 2024-2025. Construction of the new bridge is expected to be finished fall of 2025. View the design.
6th St. and Cedar River
Both I-90 bridges over 6th St. will be resurfaced and two new I-90 bridges over the Cedar River will be constructed. Work on the eastbound bridges was finished in fall of 2024. The I-90 westbound bridge work over 6th St. and the Cedar River will occur in the 2025 construction season.
2026
14th St. / Hwy 218 North
The two bridges at this location will be replaced by one bridge and roundabouts will be constructed at each ramp intersection with 14th St. The southbound bridge will stay open to the extent possible during construction. Short duration detours will be provided at 4th St. This construction is currently scheduled for 2026. View the proposed design.
21st St. / Hwy 218 South
The 21st St. bridge and the south ramps will be reconstructed. The new bridge crossing will provide a wide walkway and connections to local trails. 21st St. will be closed during construction. 11th Dr. and 28th St. will be available for short detours. This construction is currently scheduled for 2026. View the proposed design.
Why are they being replaced?
I-90 is an important national east-west transportation route that connects many population centers in the U.S. in the Austin area. I-90 was built in the 1950s and the structures are at the end of their useful design life.
