City forming designs for new Fourth Corso viaduct

Proposals for the new Fourth Corso viaduct include block walls to shorten the bridge's length.

A technique known as mechanically stabilized earth, MSE, is proposed to build walls on the east side of the bridge from Fourth Street west to the Union Pacific Railroad crossing.
Dan Giittinger, public properties director, said the proposal would shorten the 800-foot bridge by 300 feet.