Dyersburg and Dyer County, Tennessee SIGHTS & SOUNDS
	New Madrid Fault Info Is the proposed I-69 highway a good idea? Do we need another highway to Mexico and Canada? The proposed I-69 will be 55 miles longer than existing routes from Memphis to Detroit. Check It Out BACK		Road Proposal Dropped In Favor Of Toll Bridge Plan Posted: Feb 15, 2008 02:57 PM NASHVILLE, Tenn. (AP) -- The sponsor of a bill that would allow public-private road building partnerships said he is withdrawing the measure from consideration this session to instead concentrate on a toll bridge proposal. House Transportation Chairman Phillip Pinion, a Union City Democrat, said there is interest from several local governments around the state in getting toll bridge projects approved. They include proposals for new bridges in Hamilton, Shelby, Davidson counties and to replace a ferry between Houston and Benton counties. The Legislature last year approved a toll road pilot program that would allow one toll road and one toll bridge project. Pinion wants to lift the cap on how many toll bridge projects the state could approve. (Copyright 2008 by The Associated Press. All Rights Reserved.) This note concerns the Dyersburg-Caruthersville I-155 bridge: Our current information shows that bedrock is located beneath about 2800 feet of sands, gravels, and hard clay strata. Construction of the bridge was completed in 1974. The approach spans are supported on friction pile that were driven to about 50 feet in depth. The main truss spans are supported deep caissons that bear on dense sands 50 to 90 feet below the river bottom. There was a partially completed seismic retrofit study in 1995 that projected a cost of $32M. I wouldn't characterize that as a fully developed cost estimate since the study was not completed and there were unresolved issues identified that could result in the cost estimate going up significantly. Also, the cost of bridge work has inflated since 1995. Funding was the issue back then in not completing a retrofit. Greg Sunde, MoDOT – Bridge Division - Dec. 4, 2006