About Cape Henlopen Fire Control Towers
Along Delaware’s coastline, narrow concrete towers rise above dunes, trees, beach houses, and modern development. Eleven of these fire control towers survive within Cape Henlopen, Delaware Seashore, and Fenwick Island state parks. Their plain cylindrical forms can resemble forgotten watchtowers from a dystopian film, especially when fog or winter weather empties the surrounding beaches.
The towers were built during World War II as part of the coastal defense network protecting Delaware Bay. Observers inside tracked ships offshore and relayed bearings to nearby artillery crews. By comparing sightings from two or more towers, soldiers could calculate a target’s position and direct the enormous guns at Fort Miles.
The towers never had to guide fire against an invading surface fleet, but their unusual silhouettes remained after the war. Some stand in state parks, while others are surrounded by beach communities that grew around them. Tower 7 at Cape Henlopen has been restored with an observation platform that visitors can climb for a wide view of the coast.
Visitors can see several towers while traveling along Delaware’s coastal roads, but Cape Henlopen State Park provides the best historical context. Park fees may apply, and access to individual towers varies. Most are exterior landmarks rather than open buildings, so visitors should follow posted restrictions and remain on designated paths.