tunneloutlet1_credit Robert Rivard

Floodwaters pour from the outlet of the San Antonio River Tunnel during a storm in May 2014. Decades ago, these waters would have flooded the city and left a wake of death and destruction. The 2012-2017 bond program will put over $128 million toward flood control and drainage projects. Photo by Robert Rivard.

Floodwaters pour from the outlet of the San Antonio River Tunnel during a storm in May 2014. Decades ago, these waters would have flooded the city and left a wake of death and destruction. The 2012-2017 bond program will put over $128 million toward flood control and drainage projects. Photo by Robert Rivard.

Floodwaters pour from the outlet of the San Antonio River Tunnel during a storm in May 2014. Decades ago, these waters would have flooded the city and left a wake of death and destruction. The 2012-2017 bond program will put over $128 million toward flood control and drainage projects. Photo by Robert Rivard.