REPORT ON THE INSPECTIONS OF BRIDGES IN ILLINOIS
For the first time in Illinois, the findings of the Illinois Department of Transportation's bridge inspections can be viewed online. The data found in the website reveals details about the deficient state of many of Illinois's bridges. Most glaringly, a part of the Congress Parkway Bridge over the Chicago River received the lowest possible rating for a span allowed to remain in service.
Chicago Tribune transportation writer, Jon Hilkevitch, recently wrote a telling article about the state of bridge safety in Illinois. The article reported that of the 26,276 total bridges in Illinois, 4,393 have been ranked as structurally deficient (supposedly safe, but no longer able to hold the weight for which they were originally designed) and/or functionally obsolete (not meeting current design standards).
Over the next six years, Illinois plans to spend roughly $2.5 billion on bridge rehabilitation and the construction of new bridges. The funds will come from a new state capital improvement plan as well as federal stimulus packages. The Illinois Department of Transportation (IDOT) has allocated approximately $25 million to rehab the Congress Parkway Bridge, beginning next year and running through 2015.
Federal regulations require bridges to be inspected every 48 months. Federal bridge inspection regulations were developed as a result of the Federal-Aid Highway Act of 1968, which required the Secretary of Transportation to establish National Bridge Inspection Standards to ensure the safety of the traveling public. The IDOT website provides information on state-maintained bridges only. It does not include any data on the more than 18,500 bridges under the jurisdiction of municipalities, townships, counties, the Illinois State Toll Highway Authority or the Chicago Skyway.