Friday, August 03, 2007

Largest Number Of Bad Bridges Are Not Far From K.C.

In case you missed a paragraph toward the bottom of the last AP story I linked to- note:

"Among counties with more than 100 bridges, the problem appears to be most significant in the Midwest. In Nemaha County in southeastern Nebraska, about 58 percent of 194 bridges are structurally deficient. More than 55 percent of neighboring Pawnee County's 188 bridges are in the same shape. Of the 10 worst-off counties with significant numbers of bridges, seven are in Oklahoma or Nebraska."

The county seats of the two counties are Auburn and Pawnee City respectively.

According to a list of Kansas City bridge ratings published in Friday's K.C. STAR- spans that carry a "sufficiency rating" equal to or less than the "50" assigned to the failed I-35W span in Minneapolis are:

* Fairfax (southbound span) built in 1935 and Platte Purchase (northbound)- built in 1957- bridges over the Missouri River- rated 49 and 42 respectively.
* Eastbound span of I-70/Lewis & Clark viaduct- built in 1907- rating 49.

The next lowest-rated bridges were:

* Eastbound span of the I-70 Blue River/Manchester Trafficway bridge- built in 1960- rated 51.
* Westbound span of I-70/Lewis & Clark viaduct- built in 1963- rated 52.
* The Paseo bridge which carries I-35 over the Missouri- built in 1954- is rated at 55.

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