Fetching data from the National Bridge Inventory...
Fetching data from the National Bridge Inventory...
Infrastructure Grade
Infrastructure Report Card
7.1% of bridges in poor condition
Total Bridges
3,138
Poor Condition
224(7.1%)
Avg Bridge Age
49 yrs
Trend
Stable
| Metric | Wyoming | National Avg | Trend |
|---|---|---|---|
| % Poor Condition | 7.1% | 6.7% | Stable |
| vs. National Average | +0.4 pts | -- | -- |
| Average Bridge Age | 49 yrs | 48 yrs | -- |
| Good or Better | 1,101(35.1%) | -- | -- |
Grade Scale
Percentage of bridges in poor condition over time. The dashed line shows the national average for comparison.
Total Bridges
3,138
Poor Condition
224(7.1%)
Average Age
49 yrs
Daily Crossings
7.8M
Good or Better
1,101(35.1%)
These bridges have at least one major component rated "5" (Fair) — one step above the poor threshold. Sorted by daily traffic to highlight highest-impact structures at risk.
| Bridge | Location | Deck | Super | Sub | Daily Traffic |
|---|---|---|---|---|---|
| US 30 / I-80 Bus | Albany County | 5 | 8 | 7 | 14,833 |
| I-25 SBL | Laramie County | 5 | 5 | 6 | 14,609 |
| I-25 SBL | Laramie County | 5 | 5 | 6 | 14,609 |
| WYO 212 | Laramie County | 5 | 7 | 5 | 13,143 |
| I-25 NBL | Laramie County | 5 | 7 | 5 | 12,642 |
| I-25 SBL | Natrona County | 5 | 6 | 5 | 12,618 |
| I-25 NBL | Laramie County | 5 | 5 | 6 | 12,534 |
| I-25 NBL | Laramie County | 5 | 5 | 6 | 12,534 |
| US 20 | Natrona County | 6 | 6 | 5 | 12,160 |
| WYO 258 (Wyo Blvd) | Natrona County | 5 | 6 | 6 | 11,746 |
| I-80 EBL | Laramie County | 5 | 6 | 5 | 10,938 |
| La Cnty Rd 926 | Laramie County | 5 | 7 | 6 | 10,766 |
| I-80 WBL | Laramie County | 5 | 6 | 5 | 10,689 |
| I-80 WBL | Laramie County | 5 | 6 | 5 | 10,689 |
| S Gurley Avenue | Campbell County | 5 | 5 | 7 | 10,545 |
The 10 bridges in poorest condition, ranked by lowest sufficiency rating.
over Big Sandy River
over East Fork Sand Creek
over FIREHOLE RIVER
over Twin Creek
over Beaver Creek
over LITTLE ROCK CREEK
over Mill Creek
over BNSF Railway
over Encampment River
over Big Cottonwood Creek
States with similar infrastructure profiles, ranked by percentage of bridges in poor condition.
Grading: Grades are based on the percentage of bridges classified as "poor condition." A bridge is in poor condition when at least one major component (deck, superstructure, or substructure) is rated 4 or below on the NBI 0-9 scale.
Data Source: Federal Highway Administration (FHWA) National Bridge Inventory (NBI). Data is updated annually. BridgeStats is not affiliated with or endorsed by the FHWA.
Watchlist Criteria: Bridges with any component rated "5" (Fair) are one step from the poor threshold of 4 and are flagged for monitoring. These bridges are not yet in poor condition but may deteriorate without maintenance.