Galamadammen aqueduct
HEIGHT: 7.14 m
WIDTH: 16.35 m
TOTAL IMMERSED LENGTH: 71.89 m
DEPTH AT BOTTOM OF STRUCTURE: -11.10 m
WIDTH: 16.35 m
TOTAL IMMERSED LENGTH: 71.89 m
DEPTH AT BOTTOM OF STRUCTURE: -11.10 m
Koudum,
Netherlands
Province of Friesland
TBI
ARCADIS
71.89m
71.89m
11.10m
Project construction
2007-04-30
1
Two tubes, two lanes for road traffic, one tube for slow moving traffic
7.14m
16.35m
Supported on neoprene gaskets on the abutments
The tunnel element was constructed in one of the
approaches.
approaches.
Water ballast tanks en bolders
were installed in the building
dock in the approach next to
the shipping channel.
were installed in the building
dock in the approach next to
the shipping channel.
The tunnel element was installed next to the existing bridge in a trench supported by sheet pile
walls.
walls.
Mooring winches and a multipurpose diving vessel for positioning the element.
An inflatable rubber gasket
and an Omega gasket.
and an Omega gasket.
No waterproofing membrane. Cooling of concrete was used to assure that no cracking occurred
during fabrication of elements.
during fabrication of elements.
The element was supported on abutments next to the shipping channel on elastomeric
bearings.
bearings.
50 mm of extra concrete cover was
applied.
applied.
B35
Towing on its own keel Temporary water ballast inside