Monday, August 22, 2011

New Zealand's Bridges: Colombo Street Overbridge across the railway in Christchurch

March 2011 (-43.541 Degrees, 172.637 Degrees) Colombo Street Overbridge

We'll finish our tour of Christchurch with some railway and roadway overcrossings. 

The Colombo Street Overbridge crosses over the railway in the middle of town. It is a long, continuous T-girder bridge on pier walls that was built in 1940. These types of bridges go from street level to 25 feet above the ground in as short a distance as possible and have piers of varying height. That makes the short columns susceptible to earthquake damage, although there was none during the February earthquake. Note the retaining walls at the two ends to bring the bridge down to grade.
Creative Commons License
New Zealand's Bridges: Colombo Street Overbridge across the railway in Christchurch by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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