Port Expansion of Eastport, Maineby Ronald R. Bourne, Childs Engineering Corp, Medfield, MA, USA,
Abstract: A recent pier expansion now allows Eastport to provide 40 feet of water at low tide. The pier expansion consists of a concrete-decked steel pipe pile-supported extension to an existing L-shaped breakwater. Unique factors of this project included dealing with a 40-foot draft plus a tidal difference of up to 26 feet. Requirements included limiting the construction period to 120 days to curtail the economic impact on Eastport. To achieve this, the contractor utilized a composite deck using precast deck planks as the bottom form and a cast-in-place topping. The contractor also was able to precast the concrete pile caps thereby saving time by minimizing the amount of over water formwork.
Subject Headings: Ports and harbors | Concrete piles | Breakwaters | Tides | Decks | Piers | Precast concrete | Contractors and subcontractors | Micro piles | North America | Maine | United States
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