Amazing & Intresting Merrimac Memorial Bridge
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| Merrimac Memorial Bridge |
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| Friday, 16 April 2010 00:00 |
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2. Built by the immersed sunken tube method 3. The traffic lanes in the tunnel are 13 feet wide, with 2.5-foot-wide ledges on either side of the roadway, and with 16.5 feet of vertical clearance from the roadway to the ceiling. 4. Traffic flow is monitored from a traffic management center where employees keep an eye on operations through 33 closed-circuit television cameras. 5. Seventy-two sensors in the pavement of the tunnel and approach bridges automatically check every 20 seconds for interruptions in traffic flow. In the event of an incident, motorists are advised of alternate routes via 32 electronic message signs activated immediately from the traffic management center. 6. While traveling through the Monitor Merrimac, motorists do not lose their favorite local radio station while in the tunnel. A communications system rebroadcasts all local AM and FM radio stations. In the event of an emergency, tunnel staff can override these broadcasts with emergency information motorists receive through their vehicle’s radio without changing stations.       Source: www.engineeringcivil.com  CREATELINKTOWARDSTHISARTICLE PREVIEWQUOTE
Merrimac Memorial Bridge 1. It is 4,800 feet long from portal to portal. 2. Built by the immersed sunken tube method 3. The traffic... © 2012 - Amazing & Interesting World |
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