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
| County | State | Grade | Score | Poor | Poor Traffic | Scour-Critical | Avg Age |
|---|---|---|---|---|---|---|---|
| Piscataquis County | Maine | F | 10 | 21.2% | 34,115/day | 12 | 59 yrs |
| Phillips County | Colorado | F | 14 | 19.2% | 5,340/day | 5 | 53 yrs |
| Iron County | Michigan | F | 14 | 22.2% | 15,459/day | 12 | 57 yrs |
| Pawnee County | Nebraska | F | 21 | 34.6% | 3,550/day | 64 | 59 yrs |
| Luzerne County | Pennsylvania | F | 22 | 22.5% | 873,713/day | 49 | 53 yrs |
| Wyoming County | West Virginia | F | 23 | 32.1% | 40,372/day | 10 | 39 yrs |
| Hancock County | Maine | F | 26 | 24.6% | 50,381/day | 4 | 62 yrs |
| Red River County | Louisiana | F | 26 | 26.2% | 12,940/day | 16 | 41 yrs |
| Franklin County | Maine | F | 26 | 22.5% | 31,925/day | 16 | 56 yrs |
| Wayne County | Pennsylvania | F | 26 | 28.4% | 46,707/day | 59 | 58 yrs |
| Gogebic County | Michigan | F | 26 | 21.6% | 12,078/day | 19 | 57 yrs |
| Knox County | Maine | F | 28 | 16.7% | 29,459/day | 5 | 55 yrs |
| Faulk County | South Dakota | F | 28 | 23.9% | 1,376/day | 3 | 60 yrs |
| Pike County | Pennsylvania | F | 28 | 23.4% | 76,964/day | 15 | 53 yrs |
| Salem County | Virginia | F | 29 | 23.5% | 73,700/day | 0 | 63 yrs |
| Somerset County | Maine | F | 29 | 23.1% | 86,626/day | 10 | 57 yrs |
| Claiborne County | Louisiana | F | 29 | 22.3% | 18,717/day | 47 | 42 yrs |
| Kingsbury County | South Dakota | F | 29 | 28.6% | 1,449/day | 3 | 62 yrs |
| Parke County | Indiana | F | 29 | 17.5% | 9,457/day | 27 | 73 yrs |
| Cherry County | Nebraska | F | 29 | 19.3% | 1,227/day | 7 | 66 yrs |
| Schuylkill County | Pennsylvania | F | 29 | 26.6% | 85,977/day | 75 | 64 yrs |
| Todd County | South Dakota | F | 30 | 25.9% | 5,256/day | 1 | 35 yrs |
| Oneida County | Wisconsin | F | 30 | 19.7% | 30,030/day | 5 | 41 yrs |
| Hughes County | South Dakota | F | 30 | 20.0% | 8,140/day | 4 | 46 yrs |
| Ulster County | New York | F | 30 | 20.7% | 186,870/day | 56 | 50 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