Hanson Canal and Yellow Bayou, both similar to the Franklin Canal, were designed to serve as conduits for removal of stormwater following normal rainfall events. However, during hurricanes and related events, both serve as a means for reverse flow generated by storm surge. Hurricanes Rita and Ike are recorded example events. Closures and levee improvements are needed to prevent surge flows from moving inland during surge events. Both of these projects have been completed and are fully operational.
Hanson Canal is a flood gate only.
Yellow Bayou has sluice gates and a pump station that houses 2 – 42″ pumps to remove rain water from behind the structure when it is close. These structures are only closed during tropical systems with coastal flooding or high river events.