PORT OF WILMINGTON FLOOD CONTROL
PROJECT DETAILS:
A large portion of the Port of Wilmington, Delaware is up to four feet below the 100-year floodplain. Flood control at the Port is primarily provided by tide gates on their stormwater drain outfalls, in combination with bank-top berms. However, after years of use and poor upkeep, many of the tide gates were in poor condition and were failing.
The solution included replacing many of the existing pipe outlet tide gates, which were vulnerable to damage by river debris, with new in-pipe, rubber flap-gate style tide gates. These tide gates are protected from river debris, and UV light, and easily accessed from structures conveniently located on the landside of the river bank.