County Bridge Report Cards

BridgeLookup calculates a county Bridge Condition Exposure Score using public FHWA National Bridge Inventory records. Each report card combines bridge condition, traffic exposure, scour-critical foundation risk, bridge age, and data completeness into a transparent 0-100 score with a simple letter band.

3,212Counties
623,592Bridges Scored
41,671Poor Condition

What the score means

The score is designed for local infrastructure research and media context, not official safety certification. Poor condition means a bridge has significant deterioration and should be prioritized for repair; bridges judged unsafe are closed or restricted by transportation agencies.

Read the scoring methodology · Download report-card CSV · See the counties with the weakest report-card scores →

Weakest County Bridge Scores

CountyStateGradeScorePoorPoor TrafficScour-CriticalAvg Age
Piscataquis CountyMaineF1021.2%34,115/day1259 yrs
Phillips CountyColoradoF1419.2%5,340/day553 yrs
Iron CountyMichiganF1422.2%15,459/day1257 yrs
Pawnee CountyNebraskaF2134.6%3,550/day6459 yrs
Luzerne CountyPennsylvaniaF2222.5%873,713/day4953 yrs
Wyoming CountyWest VirginiaF2332.1%40,372/day1039 yrs
Hancock CountyMaineF2624.6%50,381/day462 yrs
Red River CountyLouisianaF2626.2%12,940/day1641 yrs
Franklin CountyMaineF2622.5%31,925/day1656 yrs
Wayne CountyPennsylvaniaF2628.4%46,707/day5958 yrs
Gogebic CountyMichiganF2621.6%12,078/day1957 yrs
Knox CountyMaineF2816.7%29,459/day555 yrs
Faulk CountySouth DakotaF2823.9%1,376/day360 yrs
Pike CountyPennsylvaniaF2823.4%76,964/day1553 yrs
Salem CountyVirginiaF2923.5%73,700/day063 yrs
Somerset CountyMaineF2923.1%86,626/day1057 yrs
Claiborne CountyLouisianaF2922.3%18,717/day4742 yrs
Kingsbury CountySouth DakotaF2928.6%1,449/day362 yrs
Parke CountyIndianaF2917.5%9,457/day2773 yrs
Cherry CountyNebraskaF2919.3%1,227/day766 yrs
Schuylkill CountyPennsylvaniaF2926.6%85,977/day7564 yrs
Todd CountySouth DakotaF3025.9%5,256/day135 yrs
Oneida CountyWisconsinF3019.7%30,030/day541 yrs
Hughes CountySouth DakotaF3020.0%8,140/day446 yrs
Ulster CountyNew YorkF3020.7%186,870/day5650 yrs

Browse Report Cards by State

Alabama67 county report cardsAlaska31 county report cardsArizona15 county report cardsArkansas75 county report cardsCalifornia58 county report cardsColorado64 county report cardsConnecticut8 county report cardsDelaware3 county report cardsFlorida67 county report cardsGeorgia159 county report cardsHawaii5 county report cardsIdaho44 county report cardsIllinois102 county report cardsIndiana92 county report cardsIowa99 county report cardsKansas105 county report cardsKentucky120 county report cardsLouisiana64 county report cardsMaine16 county report cardsMaryland23 county report cardsMassachusetts14 county report cardsMichigan83 county report cardsMinnesota87 county report cardsMississippi82 county report cardsMissouri114 county report cardsMontana56 county report cardsNebraska90 county report cardsNevada17 county report cardsNew Hampshire10 county report cardsNew Jersey21 county report cardsNew Mexico33 county report cardsNew York62 county report cardsNorth Carolina100 county report cardsNorth Dakota53 county report cardsOhio88 county report cardsOklahoma77 county report cardsOregon36 county report cardsPennsylvania67 county report cardsRhode Island5 county report cardsSouth Carolina46 county report cardsSouth Dakota66 county report cardsTennessee95 county report cardsTexas252 county report cardsUtah29 county report cardsVermont14 county report cardsVirginia128 county report cardsWashington39 county report cardsWest Virginia55 county report cardsWisconsin72 county report cardsWyoming23 county report cards