Brian Entin at NBC5/WPTV did a news segment from Federal Hwy. in Lake Worth yesterday. In the intro to the segment Brian Williams errs when he refers to the C-51 canal spillway as a "pump station". It's not a pump station. The structure isn't technically a "spillway" either. What happens is when SFWMD wants to release water the barriers rise up and water flows underneath the structure, not over. SFWMD refers to the spillway structure as the S-155; fishermen sometimes call it the "canal dam".
If you want to see the spillway at work go to Spillway Park prior to tropical storm Erika's arrival and you'll see an amazing sight when the water is being released at a high rate. The park is located off Maryland Ave, the last street that goes west in Lake Worth before you enter the city of West Palm Beach.