Big changes are coming to Amazon Parkway in Eugene next week.

The city plans to close the parkway for several weeks starting Monday, Jan. 21, as construction crews work on the Civic Park project at the old Civic Stadium site.

The parkway will be closed between East 19th and 24th avenues so crews can remove the road surface, place new stormwater and wastewater lines and remove the pedestrian crossing bridge that spans Amazon Parkway, according to Eugene Public Works.

The parkway closure could last until Thursday, Feb. 7.

The work comes as Eugene Civic Alliance, the nonprofit that has raised more than $20 million to build an indoor and outdoor multi-sport complex at the Civic Stadium site, has begun early construction work to build out its roughly $31 million project.

The first phase of the Civic Alliance's project will build a 40,000-square-foot fieldhouse for indoor sports, a turf field for outdoor sports, 1,000 bleacher seats and a parking lot. A second phase would expand the bleachers to 2,500 seats and complete the stadium with restrooms and amenities.

During the parkway closure, southbound traffic will be diverted from Pearl Street to Patterson Street via East 18th Avenue. East 19th Avenue will remain open during the project.

Northbound traffic will be diverted from Amazon Parkway south of 24th Avenue onto Willamette Street, via 24th.

The closure will be continuous, in place 24 hours a day.