Sheet Piling Project

Sheet piling system at the Castine Town Dock. The current sheet piling system is 24 years old in one portion of the dock and 34 years old at the other end. The project area encompasses roughly 247 lineal feet of sheet piling along with the area that will need to be excavated behind the piling. The bulkhead has been maintained historically with periodic recoating of rusted areas and the replacement of sacrificial anodes. At present approximately 10% of the bulkhead's surface coating is gone and will require re- coating. The steel in the bulkhead has thinned from 3/8" original thickness to approximately 1/4", or 30% loss of thickness. The bottom of the bulkhead at the mudline is in apparent good condition with no holed areas found. The steel 15" x 3.5" channel on top of the bulkhead is in very poor condition and completely rusted through in some sections. See the photographs included in this package for further details. This channel helps to tie the top of the bulkhead together and forms the support for the inboard end of the wooden piers. The objective of this work is to reinforce the top of the steel bulkhead with a new wood cap system. See the included design schematics for greater detail on the scope of work for this project. The Town seeks proposals from contractors to undertake the construction and emplacement of the new wood cap system.

Division 35 -

Waterway and Marine Construction, Common Work Results for Waterway and Marine Construction, Waterway and Marine Construction and Equipment, Marine Construction and Equipment.