Demolition of the old Wilshire/Grand Hotel, 2013, via Wikipedia.

Bus riders beware: unfortunately, you too may experience the wrath of Jamzilla.

The 80-hour closure/lane reduction on the I-405 North begins this evening and will likely take a toll on some Metro Bus routes due to increased traffic on surface streets in the area. Customers taking Lines 2, 4, or 20, or Metro Rapid 704, 761, or 720, or Late Night 233 should allow extra travel time to make up for probable delays due to traffic congestion.

Meanwhile, in downtown Los Angeles, the world’s largest continual concrete pour — part of construction for the new Wilshire/Grand building — will cause detours on Metro Bus Lines 20, 51, 52, 60, 460, 487, and Metro Silver Line from 8 a.m. – 10 p.m. this Saturday and Sunday, Feb 15-16.

Detours will take place at Figueroa between 7th Street and 9th Street, 7th Street between Flower Street and Bixel Street and Wilshire Boulevard between Flower Street and Bixel Street. Additional information regarding the specific detours for each line can be found here.

For what it’s worth, when construction is complete, Los Angeles will have bolstered its claim to the tallest building West of the Mississippi (a title currently held by the U.S. Bank Tower). Then look out New York, we’re coming for you.

For up-to-the-minute status updates, follow Metro on Twitter @metrolosangeles or @metroLAalerts.

For GPS-based bus and train arrival times, consult Metro’s Nextrip service.