top of page

Underwater Inspection / Marine Construction


Coastal's ADCI divers performed a routine underwater and confined space inspection of the Memorial Lake Dam’s underwater components and outlet works in Lebanon County, PA.


Additional services included: dredging of the intake structure using non-mechanical dredging techniques; removal of old trash rack using ultra-thermic underwater burning equipment; design, fabrication, and installation of a new aluminum trash rack; design, fabrication, and installation of a temporary aluminum bulkhead; confined space inspection and dredging of the 48” diameter intake pipe using a vac truck; replacement of all sluice gate stem guides; and general gate maintenance such as cleaning, wedge adjustment, and operator lubrication.


A detailed inspection report with photos, sketches, and videos was provided to the client.

bottom of page