Thursday, January 25, 2007

If I were the Terrorist ...

Scenario One:

I would steal several gasoline tank trucks and one mini-van in a single operation and drive them to one of the numerous bridges crossing the Mississippi River. 

Older bridges will likely have a flat road surface, that is, the road is level across most of the length of the span.  Such a bridge would not be a good target for this scenario as will be apparent shortly.

In the case of the newer bridges, the road surface will arc across the river with the result that both approaches slope upward until meeting at the crest.  At the top of the span, the trucks would be parked to block the lanes and the valves would be opened to let the gasoline flow down one side of the span.  The mini-van would wait on the "dry" side of the bridge -- no suicide martyrs required for this scenario.  The gasoline would be ignited by the most fearless of the crew who would all then depart in the mini-van for a go elsewhere. 

There would likely not be any explosions but the heat of the fire would damage the structure of the bridge sufficiently to force closure of the span.  Interstate trucking would be disrupted for a good while.

If the terror crew was large enough to target multiple spans at the same time, the economic disruption would be significant.  And the cost of repairs would be possibly staggering.

In the case of the older spans, some carry both highway and rail traffic so if an attack were made against such a span, interstate transport would be even more effectively disrupted.  However, as alluded to earlier, older spans tend to be flat and thus might be harder to effectively torch.


A starting list of targets:

US 18, Prairie Du Chien, Wisconsin

US 61 / US 151, Dubugue, Iowa

US 20, Dubugue, Iowa

US 52, Savanna, Illinois

19th Avenue, Clinton, Iowa

US 30, Clinton, Iowa

Chicago & Northwestern RR Bridge, Clinton, Iowa

I 80, Davenport, Iowa

I 74 / US 6, Davenport, Iowa

2nd Street & RR Bridge, Davenport, Iowa

US 67, Davenport, Iowa

Railroad Bridge, Davenport, Iowa

I 280, Davenport, Iowa

Macarthur Bridge, Burlington, Iowa

Burlington Northern RR Bridge,

US 136, Keokuk, Iowa

Railroad Bridge, Quincy, Illinois

Quincy Memorial Bridge, Quincy, Illinois

Maine Street Bridge, Quincy, Illinois

Norfolk Southern RR Bridge, Hannibal, Missouri

I 72, Hannibal, Missouri

Madison St Bridge, Louisiana, Missouri

Gateway Western RR Bridge, Louisiana, Missouri

Clark Bridge, Alton, Illinois

I 270, St. Louis, Missouri

Terminal RR Association of St. Louis Bridge, St. Louis, Missouri

McKinley Bridge, St. Louis, Missouri

Dr. Martin Luther King Memorial Bridge, St. Louis, Missouri

Eads Bridge, St. Louis, Missouri

I 55 / I 64, St. Louis, Missouri

I 255, St. Louis, Missouri

Mo 34 / MO 146, Cape Girardeau, Missouri

Union Pacific RR Bridge, Thebes, Illinois

I 57, Cairo, Illinois

US 60, Cairo, Illinois

I 155, Dyersburg, Tennessee

I 40, Memphis, Tennessee

I 55 / US 61 / US 64, Memphis, Tennessee

US 49, West Helena, Louisiana

US 82, Greenville, Mississippi

I 20 / US 80, Vicksburg, Mississippi

US 64 / US 85, Natchez, Mississippi

LA 70, Louisiana

Veterans Memorial Bridge, Gramercy, Louisiana

I 310, Destrahan, Louisiana

Huey P. Long Bridge, Metairie, Louisiana

US 90 Twin Spans, New Orleans, Louisiana


If I were one of the good guys ...

... what would I do to prevent and/or mitigate such a scenario?  Your comments should address this, if you don't mind.

 

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