More than 70 construction projects are expected to get underway in and around downtown Portland this summer, bringing with them the attendant traffic jams and longer commutes.

Officials from regional agencies and utilities say they're working to coordinate construction, better communicate traffic impacts to commuters and avoid unnecessary delays. They're calling the effort "Get Portland Moving" and posting updates at movepdx.net.

For example, the Portland Parks Bureau is moving up work on Pioneer Courthouse Square to coordinate with planned MAX track repairs on Southwest Morrison and Yamhill streets. The Portland Bureau of Environmental Services, meanwhile, will repair nearby sewer pipes at the same time.

Work on all three projects will begin around April 30.

"This construction season isn't always going to be easy, but I believe the short-term pain will be more than worth it for the long-term gain," said Transportation Commissioner Dan Saltzman.

If a pilot project works in the city center, officials say they'll expand the efforts citywide in future construction seasons.

The Portland Bureau of Transportation is also sending street closure information to Waze, a navigation app owned by Google, to steer traffic away.

And the city's bike-share program, Biketown, will offer discounts to first-time users during major construction work.

Major summertime projects include:

Interstate 5 bridge deck repairs: The Oregon Department of Transportation will repair ramps at the Morrison Bridge interchange and the bridge deck over the Moda Center Transit Center. The nighttime work will occur intermittently from April 15 to Aug. 15.

Morrison-Yamhill MAX repairs: From April 30 to May 20, TriMet will replace tracks and switches along Morrison and Yamhill streets at Southwest 11th Avenue and at 1st Avenue. The work will create a gap in MAX Blue and Red Line service that will be picked up by shuttle buses.

Broadway Bridge repairs: Contractors will replace four large, steel wheels in the bridge's lift system. The work will close the two outside lanes from early May until fall. The entire bridge will close on several nights and weekends.

Morrison Bridge deck replacement: From April to October, the bridge will be reduced to two lanes while the bridge deck is replaced. There also will be weekend bridge closures, as well as two weeklong closures in June and September while a new concrete deck is poured.

The bridge deck was replaced in 2012, but the fiber-reinforced polymer used then began to break apart after just a few months. The bridge has speed and weight restrictions to keep it from failing before the repairs.

Interstate 5 closures from Burnside Bridge repairs: Multnomah County will be working on the crumbling underside of the bridge, which will require closing I-5 southbound the weekends of April 14-16 and April 21-23 and I-5 northbound the weekends of May 5-7 and May 12-14. Traffic on the bridge won't be affected.

MAX closures from Burnside Bridge repairs: The same bridge work will close the First Avenue MAX station for the first three weeks in May, during which TriMet will also work on tracks in the area (It occurs during the other scheduled MAX disruption).

Various paving projects: Portland's Transportation Bureau will repave stretches of major downtown streets including Southwest Main, Jefferson, Morrison, Caruthers and Arthur. It also will repave Sandy Boulevard and Clay Street in Southeast Portland. Because paving is weather dependent, there's no set timeline for the work.

Sewer repairs: Pipe work will close lanes throughout the summer in downtown, Northwest Portland and Southeast Portland.

The city has created an online map of all the projects.

-- Elliot Njus

enjus@oregonian.com

503-294-5034

@enjus