TUCSON -- Undergrounding I-10 through downtown makes a lot of sense and I support it.
The freeway has been a major barrier between downtown and the westside for too long. Undergrounding the elevated freeway between Speedway/St. Marys and 22nd/29th will improve quality-of-life by reducing noise and eliminating the dividing 'wall effect' the road now has.
The reclaimed land above the tunnel could be an attractive park, just like Seattle's Freeway Park on top of an underground I-5 as seen in the photo.
Much of the traffic on I-10 is just moving through Tucson on the federal road, therefore the feds can help pay the cost of improving it.
Tucson City Manager Mike Hein and others are doing the right thing by taking one last hard look at the undergrounding option. I hope it works.