Belton's Nolan Creek is a popular spot for people looking to get a breath of fresh air.
"It's very pretty and it's a good place to come with family and just to relax and see nature," neighbor Callie Eddleman said.
But things can change quickly for the small waterway. In 2010, Tropical Storm Hermine caused Nolan Creek to flood.
"It flooded our downtown area,” Paul Romer with the City of Belton said. “After that, we decided we need to do something."
City leaders found a way to warn their residents in case the creek rises to a dangerous level. Six towers now dot the creek, working together to measure its flow.
Officials say they can now warn people in the path of a flood hours before the water reaches them.
"This really was our best option. Find a way to warn people sooner and hopefully we can preserve property and save lives," Romer said. "We can't stop the rain but we can warn people when the creek's rising."
A flash flood watch has been issued for the Temple, Killeen and Waco area on Tuesday night. It will last until 7 a.m. Wednesday morning.