Tinnea & Associates has worked on numerous Seattle Waterfront locations including Piers 58, 59 and 60. This work included pile inspection and cathodic protection and corrosion control for the seawall.

Tinnea & Associates lead an investigation of dock corrosion and failure of stainless steel pumps and pipe failure, University of Alaska Marine Sciences Department, Seward, Alaska.

Jack Tinnea designed impressed current cathodic protection systems for shiplifts and sheet pile coffer dam boat yard facilities installed by the Alaska DOT&PF in Seward and Ketchikan, Alaska.

Tinnea & Associates has performed design-build work for the US Navy, including the 2001 Keyport Pier Replacement Project. Jack Tinnea also designed cathodic protection systems used on the US Navy refueling facilities in Manchester, Washington.

Tinnea & Associates investigated and corrected submerged pump corrosion failures of sea water supply make-up systems for marine science research facilities in Kodiak and Juneau, Alaska.

Jack Tinnea designed a galvanic cathodic protection system to protect piling and reinforced concrete pontoons used as a float plane dock in Ketchikan, Alaska.

Tinnea & Associates designed galvanic cathodic protection systems to protect seawalls at Marine Park and the support piling for Steamship Wharf, both in Juneau, Alaska.