For decades, the city of Boulder has been working to protect residents from the danger and destruction wreaked when creeks coming out of the mountains fill with rainwater or snowmelt and surge into our town. One of the least-controlled of these is South Boulder Creek, which imperils 2,300 of our town’s residents and threatens Highway 36. Many of these affected families fled their homes and Highway 36 was closed in the 2013 event, the sixth flood in 80 years. It’s just a matter of time before the seventh flood occurs.