Almost there! Just bridging the gap...
Almost there! Just bridging the gap...
Infrastructure Grade
Infrastructure Report Card
3.5% of bridges in poor condition
Total Bridges
3,144
Poor Condition
109(3.5%)
Avg Bridge Age
41 yrs
Trend
Declining
| Metric | Utah | National Avg | Trend |
|---|---|---|---|
| % Poor Condition | 3.5% | 6.7% | Declining |
| vs. National Average | -3.2 pts | -- | -- |
| Average Bridge Age | 41 yrs | 48 yrs | -- |
| Good or Better | 806(25.6%) | -- | -- |
Grade Scale
Percentage of bridges in poor condition over time. The dashed line shows the national average for comparison.
Total Bridges
3,144
Poor Condition
109(3.5%)
Average Age
41 yrs
Daily Crossings
69.8M
Good or Better
806(25.6%)
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 |
|---|---|---|---|---|---|
| I-15 (SR-15) NBL | Salt Lake County | 5 | 6 | 6 | 268,370 |
| I-15 (SR-15) SBL | Salt Lake County | 5 | 7 | 6 | 268,370 |
| RAMP to I-80 EB | Salt Lake County | 5 | 7 | 7 | 268,370 |
| I-15 SBL COL-DIST. | Salt Lake County | 6 | 6 | 5 | 268,370 |
| RP.I-15NBtoI-215WB | Salt Lake County | 6 | 6 | 5 | 246,810 |
| I-15 NB COL-DIST. | Salt Lake County | 5 | 6 | 6 | 245,310 |
| I-15 (SR-15) NBL | Salt Lake County | 5 | 7 | 6 | 218,515 |
| I-15 (SR-15) SBL | Davis County | 5 | 6 | 6 | 147,839 |
| I-15 (SR-15) NBL | Davis County | 5 | 6 | 6 | 147,839 |
| I-15 (SR-15) NBL | Davis County | 5 | 6 | 6 | 143,969 |
| I-15 (SR-15) SBL | Davis County | 5 | 6 | 6 | 143,969 |
| I-15 (SR-15) SBL | Weber County | 7 | 6 | 5 | 138,457 |
| I-15 (SR-15) SBL | Weber County | 7 | 6 | 5 | 138,457 |
| I-15 (SR-15) SB | Salt Lake County | 5 | 7 | 6 | 136,020 |
| I-15 (SR-15) NBL | Davis County | 5 | 5 | 5 | 132,631 |
The 10 bridges in poorest condition, ranked by lowest sufficiency rating.
over WHITE RIVER
over WOODRUFF-RANDOLPH CANAL
over Jordan and Salt Lake can
over PRICE RIVER
over BEAR RIVER
over MALAD RIVER
over LAKE FORK OVERFLOW CHAN.
over WILLOW CREEK
over THISTLE CREEK
over BEAVER RIVER
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.