Bridge Safety Data
Explore 624,193 bridge inspection records across 53 states — 41,685 rated Poor condition.
Browse by State
View bridge inspection data for a specific state from the National Bridge Inventory.
Browse by Condition
Filter bridges by their overall condition rating: Good, Fair, or Poor.
Worst-Rated Bridges
Bridges with the lowest condition ratings in the National Bridge Inventory.
| # | Bridge Name | State | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| 1 | SCOTTS RUN | West Virginia | Poor | 1930 | 600,500 |
| 2 | SLAUSON AVE & BNSF RY | California | Poor | 1996 | 300,000 |
| 3 | KESTER AVE | California | Poor | 1959 | 293,000 |
| 4 | TACONY ST.AND BRIDGE ST. | Pennsylvania | Poor | 1967 | 280,088 |
| 5 | FRALEY STREET | Pennsylvania | Poor | 1967 | 280,088 |
| 6 | VERMONT AVE 190TH ST | California | Poor | 1962 | 269,000 |
| 7 | AVE. AMER MIRANDA 1.4 KM | Puerto Rico | Poor | 1967 | 261,400 |
| 8 | TELEGRAPH CANYON DRAIN | California | Poor | 1971 | 250,000 |
| 9 | CANAL TO STEWART STS | Illinois | Poor | 1962 | 245,500 |
| 10 | PACIFIC AVE | California | Poor | 1967 | 240,000 |
| 11 | MONUMENT BOULEVARD | California | Poor | 1998 | 235,000 |
| 12 | CESAR CHAVEZ BLVD | California | Poor | 1951 | 234,000 |
| 13 | LINCOLN AVE | California | Poor | 1961 | 227,000 |
| 14 | EARTH FILL & SEWER ACCES | Pennsylvania | Poor | 1968 | 225,137 |
| 15 | CRANDALL CREEK | California | Poor | 1958 | 225,000 |
Bridges by Condition
Distribution of bridge condition ratings nationwide.
Bridges by Decade Built
When America's bridges were constructed.
How It Works
Search Bridges
Browse 624,193 bridges by state, condition rating, or name. Every bridge in the federal inventory is included with full inspection data.
Review Condition Data
Each bridge record includes deck, superstructure, and substructure condition ratings on a 0–9 scale, plus overall condition, traffic counts, and construction details.
Understand the Ratings
Bridges are rated Good, Fair, or Poor based on the lowest component score. Poor does not mean unsafe — it means the bridge requires attention and may have weight restrictions or need repair.
Frequently Asked Questions
A Poor condition rating means the bridge has significant deterioration in one or more structural components (deck, superstructure, or substructure). It does not mean the bridge is unsafe for travel. Bridges deemed unsafe are closed to traffic or have load restrictions posted. Poor-rated bridges are prioritized for maintenance, rehabilitation, or replacement by the responsible agency.
All bridge data comes from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI). This is the official federal database of all bridges on public roads in the United States with a span of more than 20 feet. Bridge owners are required to inspect each structure at least once every two years and submit inspection results to FHWA. Our database contains 624,193 bridge records across 53 states.
Average Daily Traffic (ADT) is the average number of vehicles crossing a bridge each day. It is measured or estimated based on traffic counts and used to prioritize bridge maintenance and repair. High-ADT bridges in poor condition are typically the highest priority for infrastructure spending because they affect the most people.
Trained inspectors evaluate three main components: the deck (driving surface), superstructure (beams and girders), and substructure (piers and abutments). Each is rated on a 0-9 scale (9 = excellent, 0 = failed). The overall condition (Good, Fair, or Poor) is based on the lowest component score. Inspections follow FHWA guidelines and occur at least every 24 months.