BridgeReportCard
HomeIowa › Cass County

Bridge conditions in Cass County, Iowa

296 inventoried bridges · 104 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

Cass County has 104 bridges rated poor out of 296 inventoried, a 35.1% share that puts it well above the national rate of about 7%.

Good 27.0% · Fair 37.8% · Poor 35.1% of 296 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

BridgeBuiltVehicles/dayCondition
FM - Olive over Nishnabotna River19611,524Poor
FM - 690TH over Sevenmile Creek1971468Poor
FM - 690TH over Waterway1963450Poor
FM - 690TH over Waterway1970450Poor
Washington St over Drainage to Camp Creek1983405Poor
FM - Lansing over Waterway1900379Poor
FM - 690TH over Jim Creek1971329Poor
Local - 560TH over Creek1983269Poor
FM - 690TH over Troublesome Creek1960210Poor
FM - 690TH over Nodaway River1970190Poor
W 4TH St over Camp Creek1976170Poor
FM - Oxford over Seven Mile Creek1974139Poor
FM - Jackson over Waterway1985139Poor
FM - Boston over Nishnabotna River1951131Poor
Local/buck Crk over East Nishnabotna River1900123Poor
Local - 770TH over Small198091Poor
Quincy Rd over Waterway197591Poor
Local/rockport over Waterway190089Poor
Local - 540TH over Waterway199172Poor
Local - Nshna V over Small Stream198662Poor
Local - Hamburg over Turkey Creek197462Poor
FM - Lansing over Waterway195260Poor
Local - 740TH over West Nodaway River197851Poor
Local - 665TH over Creek198351Poor
FM - Yankton over Waterway195850Poor
540TH St over Stream198450Poor
Local - 540TH over Lone Tree Branch198750Poor
Local - Yankton over Waterway195146Poor
Local - 700TH over Waterway196746Poor
Local - Jasper over Nishnabotna River195946Poor
FM - 730TH over Elm Creek195645Poor
FM - Indian Crk over Waterway195545Poor
Local/victoria over Small195941Poor
Local - Quincy over West Nodaway River198241Poor
Local - 665TH over Jim Branch197841Poor
Local/buck Crk over Waterway196741Poor
Local/richland over Waterway195940Poor
Local/richland over Waterway195940Poor
Local - 765TH over Waterway190035Poor
Local/keystone over Turkey Creek190035Poor
Local - Daytona over Buck Creek198035Poor
FM - Yankton over Nodaway River194934Poor
FM - 660TH over Jim Creek195634Poor
Local - Wichita over Three Mile Creek197230Poor
Local - 570TH over Waterway195530Poor
Local - Quincy over Waterway196730Poor
Local - 635TH over Troublesome Creek197930Poor
Local - 730TH over Waterway195830Poor
Local - Chicago over Buck Creek190030Poor
FM - 660TH over Lone Tree Creek190029Poor
FM - Boston over Crooked Creek195029Poor
Local - Wichita over Nodaway River198826Poor
Local - Upland over Waterway198326Poor
Local/newport over Creek195926Poor
Local - Quebec over Seven Mile Creek198126Poor
Local - Nshna V over Indian Creek192026Poor
Local/keystone over Creek190026Poor
Local/keystone over Creek198126Poor
Local - 740TH over Creek190026Poor
FM - 710TH over Waterway195526Poor
Local over Waterway195526Poor
Local/eastland over Buck Creek197426Poor
Local - 670TH over Lone Tree Branch197821Poor
Local - Pella over Fox Creek198721Poor
Local - 700TH over Turkey Creek197821Poor
Local over Creek199721Poor
Local - 555TH over Camp Creek197621Poor
Local over Turkey Creek198121Poor
Local/fairview over Creek195921Poor
FM - 710TH over Waterway195820Poor
FM - Dallas over Troublesome River195920Poor
Local - Upland over Threemile Creek199615Poor
Local - Upland over Seven Mile Creek197615Poor
Local - 620TH over Waterway197715Poor
Local - 560TH over Waterway190015Poor
Local - 680TH over Seven Mile Creek197915Poor
Newport Rd over Bear Branch198415Poor
Local/keystone over Spring Creek190015Poor
Local - 640TH over Creek197715Poor
Local - Chicago over Creek197715Poor
Local/fairview over Stream197915Poor
Local - 760TH over Stale Branch198611Poor
Local - 710TH over W Nodaway197711Poor
Local - Wichita over Seven Mile Creek197811Poor
Local - 740TH over Waterway198511Poor
Local - 760TH over West Nodaway Creek198811Poor
Local - 710TH over Waterway195511Poor
Local - 680TH over Waterway197611Poor
Local - 640TH over Lone Tree Branch198711Poor
Local - Akron over Small Stream198711Poor
Akron Rd over Stream197811Poor
Local - 700TH over Trib Troublesome Creek198311Poor
Local - 100TH over Creek190011Poor
Local - Upland over Whistlers Branch19835Poor
Local - 680TH over Waterway19855Poor
Local - 660TH over Stream19815Poor
Local over Clarks Creek19665Poor
Local - Memphis over Turkey CR19005Poor
Local - Memphis over Small Stream19785Poor
Local - 675TH over Creek19615Poor
Independence Rd over Creek20055Poor
LOCAL/730TH Ln over Waterway19955Poor
Local - Akron over Troublesome Creek19005Poor
Local - 580TH over Little Camp Creek19815Poor

Busiest bridges in the county

BridgeBuiltVehicles/dayCondition
I-80 over Camp Creek196523,500Fair
I-80 over Drainage Ditch195923,000Fair
I-80 over Stream196522,400Fair
I 80 EB over Indian Creek201311,800Good
I 80 WB over Indian Creek201411,800Good
EB I-80 over 570TH St196611,750Fair
WB I-80 over 570TH St196611,750Fair
EB I-80 over 770TH Street195811,650Fair
WB I-80 over 770TH Street195811,650Fair
EB I-80 over Buck Ck & Buck Ck Rd196511,600Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Iowa: Iowa bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.