Deficient major bridges in Iowa

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. BLACK HAWK BREMER CARROLL CEDAR CERRO GORDO CLARKE CLAY CLINTON DUBUQUE HARDIN IOWA JASPER JOHNSON LEE LINN MARSHALL MILLS MUSCATINE PLYMOUTH POLK POTTAWATTAMIE POWESHIEK SCOTT STORY WAPELLO WARREN WEBSTER WINNESHIEK WOODBURY Status Rating Road Place County Feature Location D 32.3 BLACK HAWK CEDAR RIVER W 11TH ST D 58.0 BLACK HAWK DRY RUN CREEK UNIVERSITY AVE O 95.0 218 BLACK HAWK OVER SB US 63 0000000 O 95.0 218 BLACK HAWK OVER SB US 63 0000000 Status Rating Road Place County Feature Location O 51.3 3 BREMER CEDAR RIVER 0000000 Status Rating Road Place County Feature Location O 66.0 30 CARROLL DITCH #77 0000000 Status Rating Road Place County Feature Location O 68.0 80 CEDAR OVER ABANDON RR 0790408 O 68.0 80 CEDAR OVER ABANDON RR 0790408 D 56.0 80 CEDAR SMALL NATURAL STREAM 0790408 D 44.6 80 CEDAR CEDAR RIVER 0790313 D 37.5 80 CEDAR CEDAR RIVER 0790313 Status Rating Road Place County Feature Location O 27.6 122 CERRO GORDO CHESLEA CREEK 0000000 Status Rating Road Place County Feature Location D 50.3 35 CLARKE DRAINAGE DITCH 0722507 Status Rating Road Place County Feature Location D 48.0 18 CLAY LITTLE SIOUX RIVER 0000000 Status Rating Road Place County Feature Location O 56.6 30 CLINTON MISSISSIPPI RIVER & RR 0000000 Status Rating Road Place County Feature Location O 65.6 20 DUBUQUE S FORK CATFISH CREEK 089E231 O 65.6 20 DUBUQUE S FORK CATFISH CREEK 089E231 O 43.4 20 DUBUQUE "MISS. RIVER HWY & RR" O 45.2 52 DUBUQUE "CATFISH CK CC RR & RD" Status Rating Road Place County Feature Location O 48.2 HARDIN IOWA RIVER WASHINGTON AVE D 7.5 65 HARDIN IOWA RIVER 0000000 Status Rating Road Place County Feature Location D 55.0 80 IOWA LITTLE BEAR CREEK 0801232 Status Rating Road Place County Feature Location O 92.5 80 JASPER OVER LOCAL ROAD 0792106 O 77.2 80 JASPER INDIAN CREEK OVERFLOW 0802031 O 73.1 80 JASPER PRAIRIE CREEK 0792003 O 70.8 80 JASPER PRAIRIE CREEK 0792003 O 75.6 80 JASPER CHERRY CREEK 0791906 O 75.6 80 JASPER CHERRY CREEK 0791906 D 61.0 80 JASPER NORTH SKUNK RIVER 0801731 D 60.1 80 JASPER NORTH SKUNK RIVER 0801731 Status Rating Road Place County Feature Location O 67.1 ALBIA JOHNSON CLEAR CREEK 1ST AVE D 86.5 380 ALBIA JOHNSON OVER I-80 0800734 D 71.0 380 ALBIA JOHNSON CLEAR CREEK 0800734 O 76.1 JOHNSON RALSTON CREEK GILBERT ST D 51.0 1 JOHNSON IOWA RIVER 0000000 D 53.0 1 JOHNSON IOWA RIVER 0000000 D 95.0 80 JOHNSON OVER LOCAL RD 0800832 Status Rating Road Place County Feature Location O 80.7 136 LEE "MISSISSIPPI RIVER & RR R" Status Rating Road Place County Feature Location O 59.2 LINN PRAIRIE CREEK 6TH ST SW D 47.2 30 LINN CEDAR RIVER 0820609 O 81.0 151 LINN OVER UP RR 0820604 O 93.0 380 LINN OVER CIC RR & CITY ST 0000000 O 93.0 380 LINN OVER CIC RR & CITY ST 0000000 O 92.0 380 LINN OVER 3RD AVE 0000000 O 87.0 380 LINN OVER IA 922 & RR 0000000 O 89.0 380 LINN OVER CEDAR RIVER & HWY 0000000 Status Rating Road Place County Feature Location O 71.8 14 MARSHALL OVER UP RR & CITY STS 0000000 O 73.3 MARSHALL LINN CREEK S CENTER ST O 66.0 MARSHALL OVER R.R.AND MARKET ST. S CENTER ST Status Rating Road Place County Feature Location D 64.6 29 MILLS ST MARYS CREEK 0734308 D 67.3 29 MILLS ST MARYS CREEK 0734308 Status Rating Road Place County Feature Location O 76.5 92 MUSCATINE MAD CREEK 0000000 Status Rating Road Place County Feature Location D 50.2 75 PLYMOUTH SMALL NATURAL STREAM 0904617 Status Rating Road Place County Feature Location O 88.5 35 BALDWIN POLK OVER NW 72ND ST 0000000 O 89.1 235 BARNUM POLK OVER 8TH ST & RR 0000000 O 83.7 235 BARNUM POLK OVER 8TH ST & RR 0000000 O 74.4 BARNUM POLK NORTH WALNUT CREEK UNIVERSITY AVE O 73.5 POLK WALNUT CREEK NW 86TH ST D 59.9 POLK DES MOINES RIVER E LOCUST ST O 44.7 POLK WALNUT CREEK GRAND AVE O 64.1 28 POLK RACCOON RIVER 0782514 O 69.3 POLK OVER OLD UP RR & SW 22ND FLEUR DR D 46.8 POLK RACCOON AND RR FLEUR DR O 65.6 POLK RACCOON RIVER & TRAIL SW 9TH ST O 52.0 POLK "OVER RR CHERRY D 13.4 POLK "OVER RR CHERRY AND ELM" D 33.6 POLK RACCOON R & TRAIL SW 7TH ST O 67.5 POLK DES MOINES RVR & BIRDLAN 6TH AVE O 57.6 69 POLK OVER RR YARD & SCOTT AVE 0000000 O 52.3 POLK OVER UP RR SE 30TH ST O 54.4 415 POLK OVER NW 66TH AVE 0792402 O 67.7 35 POLK OVER IAIS RR 0000000 O 54.3 35 POLK OVER IAIS RR 0000000 D 41.4 35 POLK OVER GRAND AVE 0000000 D 61.5 35 POLK OVER GRAND AVE 0000000 O 48.4 35 POLK "OVER RR TRUE PKWY O 45.1 35 POLK "OVER RR EPTRUE PKWY D 57.2 35 POLK OVER WB I-80 0792318 D 49.0 35 POLK OVER WB I-80 0792318 O 91.4 35 POLK OVER E. 1ST STREET 0000000 O 92.1 35 POLK OVER E. 1ST STREET 0000000 O 76.7 35 POLK FOUR MILE CREEK 0802307 O 76.7 35 POLK FOUR MILE CREEK 0802307 O 91.1 35 POLK OVER NE 110TH ST 0802307 O 92.1 35 POLK OVER NE 110TH AVE 0802307 D 47.1 80 POLK OVER US 65 0792311 D 61.6 80 POLK OVER US 65 0792311 O 93.0 35 POLK W-N CONN OVER I-35 0000000 O 87.8 235 POLK OVER CUMMINS PARKWAY 0000000 D 33.5 235 POLK EB I-235 OVER 12TH ST 0000000 D 47.7 235 POLK DES MOINES RIVER AND RD 0000000 O 88.1 235 POLK OVER GUTHRIE AVE 0000000 O 87.8 235 POLK OVER GUTHRIE AVE 0000000 D 92.2 235 POLK OVER HULL AVE 0000000 D 80.0 235 POLK OVER BROADWAY AVE 0792319 D 53.7 235 POLK OVER EB I-80 0792318 D 72.7 235 POLK OVER NB I-35 & EB I-80 0792318 O 77.4 POLK WALNUT CREEK NW 100TH ST O 77.4 POLK WALNUT CREEK NW 100TH ST O 70.7 235 POLK OVER E 15TH ST 0000000 Status Rating Road Place County Feature Location D 31.7 6 POTTAWATTAMIE OVER UP&IC RR & STREETS 0000000 D 60.3 275 POTTAWATTAMIE OVER BNSF RR/SM STREAM 0000000 O 64.9 275 POTTAWATTAMIE INDIAN CREEK 0000000 D 60.9 29 POTTAWATTAMIE OVER BNSF & CBEC RR 0744318 D 57.9 29 POTTAWATTAMIE OVER BNSF RR 0744318 O 79.0 29 POTTAWATTAMIE OVER EB I-80 0000000 O 56.7 29 POTTAWATTAMIE OVER IA 192 & BNSF RR 0000000 O 80.6 29 POTTAWATTAMIE OVER NB I-29 W-N CONN 0000000 O 82.0 29 POTTAWATTAMIE OVER 9TH AVE 0000000 O 82.0 29 POTTAWATTAMIE OVER 9TH AVE 0000000 O 68.3 29 POTTAWATTAMIE OVER AVE G 0000000 D 32.4 29 POTTAWATTAMIE HONEY CREEK 0774433 D 34.8 29 POTTAWATTAMIE HONEY CREEK 0774433 O 72.3 80 POTTAWATTAMIE OVER MADISON AVE 0000000 O 91.5 80 POTTAWATTAMIE OVER MCPHERSON AVE 0000000 O 81.0 80 POTTAWATTAMIE S-W CONN OVER EB I-680 0774105 D 69.8 480 POTTAWATTAMIE MISSOURI RIVER & RR 0000000 O 62.8 480 POTTAWATTAMIE OVER 41ST STREET 0000000 O 87.9 29 POTTAWATTAMIE S-W CONN OVER US 6 0000000 O 93.4 92 POTTAWATTAMIE MOSQ. CREEK & CEBEC RR 0000000 Status Rating Road Place County Feature Location D 52.0 80 POWESHIEK OVER IOWA 146 0801632 O 79.0 80 POWESHIEK OVER IOWA 21 0801333 O 85.7 80 POWESHIEK OVER IOWA 21 0801333 Status Rating Road Place County Feature Location O 68.2 SCOTT OVER IAIS RR W LOCUST ST O 62.6 SCOTT OVER IMRL RR E LOCUST ST O 61.6 SCOTT OVER JERSEY RD E LOCUST ST O 76.9 SCOTT DUCK CREEK N DIVISION ST O 78.2 SCOTT DUCK CREEK MARQUETTE ST O 79.2 SCOTT OVER IMRL RR EASTERN AVE O 68.8 SCOTT DUCK CREEK EASTERN AVE O 69.0 SCOTT DUCK CREEK JERSEY RIDGE RD O 56.0 6 SCOTT COW CREEK 0000000 O 51.2 61 SCOTT DUCK CREEK 0000000 O 80.0 61 SCOTT GOOSE CREEK 0000000 O 42.8 67 SCOTT "MISS.RVR RR &US 61 (TOLL" O 36.5 74 SCOTT "MISS. RIVER RR & US 67" O 51.0 74 SCOTT "MISS. RIVER RR & US 67" O 90.8 74 SCOTT DUCK CREEK 0000000 O 78.0 80 SCOTT OVER MIDDLE RD 078E402 O 79.0 80 SCOTT OVER CO RD (Z-30) 078E506 O 73.1 80 SCOTT OVER CO RD (Z-30) 078E506 O 65.0 74 SCOTT OVER CITY STS (MISS.APP) 0000000 O 68.0 74 SCOTT OVER CITY STS (MISS.APP) 0000000 Status Rating Road Place County Feature Location O 94.0 STORY OVER UP RR ISU 13TH ST D 35.0 69 STORY SQUAW CREEK 0000000 O 17.3 30 STORY RICHARDS CREEK 0832318 O 69.7 35 STORY OVER US 30 0832318 O 78.0 35 STORY OVER US 30 0832318 O 55.1 STORY SKUNK RIVER LINCOLN WAY Status Rating Road Place County Feature Location D 34.0 WAPELLO DES MOINES RIVER S MARKET ST O 63.5 WAPELLO DES MOINES RIVER & RR S JEFFERSON ST D 55.5 63 WAPELLO "DM RIVER STREETS BNSF R" Status Rating Road Place County Feature Location D 42.3 35 WARREN NORTH RIVER 0762506 O 65.4 35 WARREN NORTH RIVER 0762506 O 65.4 35 WARREN BADGER CREEK 0772519 O 65.4 35 WARREN BADGER CREEK 0772519 Status Rating Road Place County Feature Location O 69.5 926 WEBSTER OVER DM RIVER & B AVE 0000000 D 51.0 926 WEBSTER OVER CC RR AND 11TH 0000000 Status Rating Road Place County Feature Location O 73.2 WINNESHIEK UPPER IOWA RIVER COLLEGE DR Status Rating Road Place County Feature Location O 76.2 WOODBURY FLOYD RIVER & RR DACE AVE D 22.1 WOODBURY FLOYD RIVER 6TH ST O 76.7 WOODBURY PERRY CREEK W 19TH ST D 14.0 WOODBURY CREEK FLOYD BLVD D 35.0 12 WOODBURY "OVER RR RVR D 19.3 12 WOODBURY OVER ABANDONED RR 0000000 D 59.6 376 WOODBURY FLOYD RIVER 0000000 D 68.3 29 WOODBURY OVER 8TH ST 0000000 D 52.4 29 WOODBURY FLOYD RIVER 0000000 D 57.7 29 WOODBURY OVER UP RR & WALL ST 0000000 D 61.7 WOODBURY PERRY CREEK HAMILTON BLVD

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