The city of Arroyo Grande is considering whether to permanently close the northbound Highway 101 on- and off-ramps at Brisco Road and will close those ramps for 10 weeks to study the issue.
The northbound on- and off-ramps will close Tuesday and remain closed until Dec. 7 while a traffic study is done to examine the impacts if the ramps were closed permanently.
The city has examined alternatives for the Brisco Road interchange since 1999, when it identified a need to fix traffic congestion at the busy interchange. The project has faced delay after delay as the city and Caltrans attempt to reach an agreement on how best to update the interchange while still maintaining the city's traffic patterns.
In March, the Arroyo Grande City Council took steps to once again examine alternatives for the project, including alternatives that would close the ramps permanently or the city's first roundabout at West Branch Street and Rodeo Drive.
The ramps will be closed 24 hours a day until the study is completed. The closure is expected to cost the city approximately $100,000.