Cal Poly construction work will cause traffic detours this summer

One of the entrances to Cal Poly in San Luis Obispo.
One of the entrances to Cal Poly in San Luis Obispo. The Tribune

Expect traffic detours on the Cal Poly campus this summer as six major construction projects and more than 100 minor projects get underway.

The university is asking drivers to avoid Grand Avenue and use two alternate routes from June 15 through Aug. 31.

The projects include work on the new Student Housing South dorm, which will house 1,475 students when completed in fall 2018. The existing Vista Grande student dining facility also is being demolished this summer to make way for a new three-story dining complex with six dining options, patio space and lounge areas. The new dining complex is also expected to open fall 2018.

Other upgrades, including fire protection at Yosemite Hall, are being done. Along Grand Avenue, crews will replace hot water pipes below the street surface between Pacheco Way and North Perimeter Road.

The Grand Avenue parking structure will remain open.

During the summer, campus through-traffic will be diverted from Cal Poly’s Grand Avenue entrance to the preferred and fastest detour — via Highway 101 to California Boulevard. The second option is to use Santa Rosa Street to Highland Drive.

Inbound campus traffic on Grand Avenue will continue to have access to the Grand Avenue parking structure but will not be able to drive beyond the structure into campus. Vehicles leaving campus may still use Grand Avenue because a section of it will be designated for one-way, outbound-only traffic. Traffic using Grand Avenue, instead of the preferred alternate routes, should expect delays during the building work.

Detour maps and project information can be found at