Thursday, May 17, 2012

Gulf of Maine Research Institute – Pier Replacement



Scope of Work 
Cianbro demolished the existing United States Coast Guard (USCG) timber pier and erected a new concrete bulkhead and pier for three 110 ft USCG Cutters. 

Project Details 
  • Demolished the existing timber pier 
  • Constructed a turbidity curtain for debris and sediment control
  • Constructed a temporary rip rap road in the intertidal area to access and construct the new pier
  • Dredged 1,000 cy of material to unload the existing sheet wall pile
  • Drove 12,750 – 12 inch, 24 inch and 30 inch pipe pile up to 125 ft deep to construct the 32 bent structures
  • Erected the concrete bulkhead and installed cast-in-place pile caps 
  • Installed the precast deck panels between each pile bent 
  • Poured and finished the concrete overlay for the pier
  • Installed handrail and all utilities for three 110 ft USCG Cutters and research vessels 
  • Installed the concrete float and gangway 
3D Laser Survey of Pier Foot Print Once the Pier Deck and Pile Were Removed

Unique Challenge



Through value engineering and partnering with Owner, Cianbro completed the project with a substantial savings to the Owner.

Project Information

Owner: 
Gulf of Maine Research Institute

Type of Project: 
Marine

Construction Schedule: 
Start: February 2010  
Complete: November 2010

Location:
Portland, ME
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