Deficient major bridges in South Dakota

The following bridges carry at least 10,000 vehicles a day and have been rated as either structurally deficient or functionally obsolete by inspectors, according to an msnbc.com analysis of the National Bridge Inventory.

Status of "D" means the bridge has been rated structurally deficient; "O" means it has been rated functionally obsolete.

A structurally deficient bridge is closed or restricted to light vehicles because of its deteriorated structural components. While not necessarily unsafe, these bridges must have limits for speed and weight.

A functionally obsolete bridge has older design features and, while it is not unsafe for all vehicles, it cannot safely accommodate current traffic volumes, and vehicle sizes and weights.

The raw dataset of the National Bridge Inventory, which is compiled by the U.S. Department of Transportation's Federal Highway Administration from state reports, was provided by the National Institute for Computer-Assisted Reporting at the University of Missouri. The analysis was done by msnbc.com. This page reflects inspections through December 2005.

Click a county name to view data. BUTTE HUGHES LAWRENCE MEADE MINNEHAHA PENNINGTON Status Rating Road Place County Feature Location D 52.8 85 BUTTE HAY CK 0.8 N JCT SD 34 Status Rating Road Place County Feature Location D 38.8 14 HUGHES MISSOURI RV HUGHES - STANLEY CO LINE Status Rating Road Place County Feature Location O 63.7 14 DEADWOOD LAWRENCE WHITEWOOD CK AT JCT US 85 S O 74.8 SPEARFISH LAWRENCE SPEARFISH CK JACKSON BLVD - SPEARFISH Status Rating Road Place County Feature Location O 84.9 90 MEADE SD 231 RAMP 0.1 SE SD231 INTERCHANGE Status Rating Road Place County Feature Location D 86.6 SIOUX FALLS MINNEHAHA BIG SIOUX RV 41ST E OF WESTPORT AV -SF D 49.6 SIOUX FALLS MINNEHAHA BIG SIOUX RV 49TH W OF KIWANIS - SF O 79.0 229 SIOUX FALLS MINNEHAHA 57TH ST 0.4 SW WESTERN AV INTERCH D 59.8 SIOUX FALLS MINNEHAHA BIG SIOUX RV 8TH E OF PHILLIPS AVE -SF O 77.0 42 SIOUX FALLS MINNEHAHA BIG SIOUX RV 0.4 E JCT SD 115 O 64.8 42 SIOUX FALLS MINNEHAHA RAILROAD SWITCHYARD RR 0.7 E JCT SD 115 O 75.0 90 SIOUX FALLS MINNEHAHA SD115 SD 115 INTERCHANGE O 64.0 90 SIOUX FALLS MINNEHAHA SD115 SD 115 INTERCHANGE O 85.1 229 SIOUX FALLS MINNEHAHA CLIFF AVE CLIFF AVE INTERCHANGE O 85.1 229 SIOUX FALLS MINNEHAHA CLIFF AVE CLIFF AVE INTERCHANGE D 64.8 SIOUX FALLS MINNEHAHA BIG SIOUX RV 26TH W OF SE DRIVE - SF D 59.5 42 MINNEHAHA I029 SD 42 INTERCHANGE Status Rating Road Place County Feature Location D 59.8 231 RAPID CITY PENNINGTON RAPID CK 0.1 E JCT SD 445 D 72.9 16 RAPID CITY PENNINGTON "ST JOSEPH ST D M & E RR" O 91.5 90 PENNINGTON MAPLE AVE 0.5 E HAINES AVE INTERCH O 92.5 90 PENNINGTON MAPLE AVE 0.5 E HAINES AVE INTERCH

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