Traffic impacts
Overnight I-90 detour planned July 16 for Highway 218 north bridge deck pour
East and westbound I-90 traffic will be routed up and down the traffic ramps at the Highway 218 north/14th Street NW bridge from 8 p.m., Thursday, July 16 to 6 a.m., Friday, July 17, while the bridge deck concrete is poured.
Highway 218 south / 21st Street NE bridge closed
Demo of the Highway 218 south (21st Street NE) bridge has occurred. Traffic is detoured during construction of the new bridge.
Highway 218 south / 21st Street NE ramp closures begin July 9
On- and off- ramp closures will be in place until construction is completed, which is expected to be in early September.
- Detour map
- Motorists who want to reach destinations on the north side of the bridge will use Exit 181, travel east on 220th Street to 570th Avenue north to 225th Street west to reach 21st Street NE.
- Motorists who want to reach destinations on the south side of the bridge will use Exit 181, travel south on Mower County Road 58 to Mower County Road 3 west to reach Highway 218.
14th Street NW / Highway 218 north bridge and road closed between I-90 and 18th Avenue NW: June 12 through fall
Beginning June 12, motorists wanting to use 14th Street Northwest / Highway 218 north bridge and road north of I-90 will be detoured for the bridge replacement and as the sanitary and storm sewer are replaced.
- Motorists who are southbound on Highway 218 in northwest Austin will need to turn east (left) at 18th Avenue Northwest and travel to 4th Street Northwest to turn south (right).
- Motorists who want to travel on I-90 can use the on-ramps at 4th Street in each direction.
- Motorists wanting to reach 14th Street NW on the south side of I-90 should continue south on 4th Street to 4th Avenue Northwest to go west (right) to reach 14th Street.
- Westbound I-90 motorists should use Exit 178A at 4th Street NW to reach 14th Street NW on the south side of I-90 by Riverland Community College.
- Eastbound I-90 motorists should continue to use 4th Street NW (Exit 178A) to reach the north side of I-90.
- Northbound motorists on 14th Street NW south of I-90 can reach the north side of I-90 and Highway 218 north by merging onto I-90 eastbound and exit at 4th Street NW (Exit 178A) to travel north on 4th Street.
- The westbound ramps at 14th Street NW will be closed. The eastbound ramps will remain open. During I-90 closures in June, all ramps will be open for detours up and down while I-90 is closed for single day or weekend bridge related work.
14th Street NW south bridge is scheduled to be demolished from 7 p.m., June 26 to 5 a.m., June 29. During demo, I-90 traffic will be detoured - directed up the off-ramp and down the on-ramp to continue on the highway.
I-90 between 14th Street NW / Highway 218 north and Highway 218 south / 21st Street NE
- Traffic shifts occur and motorists travel in single lanes.

