Project Detail

Redundant Anchoring System For A 165 Ton Leg Derrick

Kittery, ME

Scope of Work

Cianbro constructed a redundant anchoring system for a 165-ton leg derrick used to support Navy heavy industrial operations at the Portsmouth Naval Shipyard.

Project Details

  • Modified three existing crane support piers and cut a channel through their centers
  • Fabricated, painted, machined, and installed two equalizer box girders and through box girders, four tension bars, and four 19-inch diameter, 5 foot long, pins
  • Modified the existing crane leg bases to receive the anchoring system
  • Fabricated and installed the anchoring system.

Lean, Innovative, and Unique Project Solutions

Cianbro performed this work under a very compressed schedule to meet the Navy’s scheduled overhaul and maintenance work on naval vessels.


Cianbro was awarded the Naval Facilities Engineering Command Certificate for this project