Bridge Safety Data

Explore 624,193 bridge inspection records across 53 states — 41,685 rated Poor condition.

0 Total Bridges
0 Poor Condition
0 Good Condition
0 Average Age (Years)

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

1

Search Bridges

Browse 624,193 bridges by state, condition rating, or name. Every bridge in the federal inventory is included with full inspection data.

2

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.

3

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.