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The Martin Bridge is a steel truss bridge of eleven spans, each 37.1 metres (122 ft) long, on concrete supports, with three steel girder approach spans each 12.2 metres (40 ft) long. The total bridge length is 463 metres (1,519 ft). Originally it had a lifting span with two concrete counterbalances.
Michael Martin OBE is a British bridge engineer. He grew up in Carlisle and studied at the Carlisle Technical College before achieving a degree in civil engineering from the University of Leeds. Martin began his career as a design engineer at Ove Arup & Partners and served as their representative during the construction of the Kessock Bridge.
Rapid bridge replacement or accelerated bridge construction (ABC) is a technique that allows bridges to be replaced with minimum disruption to traffic. The replacement bridge is constructed on a site near the bridge to be replaced. When it is completed, the old bridge is cut away and removed using self-propelled modular transporters (SPMTs).
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The project called for a complete bridge replacement and adding bicycle lanes and sidewalks. County officials budgeted the bridge work to be $4.78 million of the $11 million Sixth Avenue South ...
The original bridge carried two lanes of traffic in each direction, but did not include emergency shoulders or pedestrian and bicycle crossings. This posed traffic problems since any obstruction caused by car breakdown, wreck or maintenance would result in traffic backups. [24] In 2011, WSDOT broke ground on the replacement bridge. [25]
The original bridge was vulnerable to earthquakes and strong wind events, which would frequently shut down traffic. Planning for a replacement began in 1997 and was approved in 2011; the $4.65 billion budget was derived from state gas taxes and federal sources, as well as toll revenue. Construction of the 77 concrete pontoons began in 2011 and ...
The Martin Road Bridge is a single-span, metal, pin-connected, Pratt through truss structure having. The bridge is 119 feet long and fifteen feet wide between the trusses. The deck is made up of three-by-eight-inch wooden planks, supported by six rows of six-inch I-beams and two rows of six-inch channels, all supported by sixteen-inch metal floor beam