Hawaii bridge conditions
1,180 inventoried bridges · 67 rated poor · county by county
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 67 of Hawaii's 1,180 inventoried bridges are rated in poor condition (5.7%) in the 2025 National Bridge Inventory, as of .
- 461 bridges (39.1%) are rated good and 652 (55.3%) fair.
- The national poor rate is about 6.7%; Hawaii is at or below it (see all states ranked).
- The busiest poor-rated bridge in the state is Kam Hwy/keehi Ic over Kalihi Strm /ob in Honolulu County, carrying about 70,510 vehicles a day.
By the measure that matters most - the most traffic on a poor rating - it is Kam Hwy/keehi Ic over Kalihi Strm /ob in Honolulu County, built 1943, carrying about 70,510 vehicles a day. That is a repair-priority flag, not a collapse warning: what a poor rating does and does not mean. See the worst bridge in every state.
Good 39.1% · Fair 55.3% · Poor 5.7% of 1,180 bridges
Bridge conditions by county
Sorted by the number of poor-rated bridges. Click any county for its full bridge list.
| County | Bridges | Rated poor | Poor % |
|---|---|---|---|
| Honolulu County | 676 | 40 | 5.9% |
| Maui County | 187 | 13 | 7.0% |
| Hawaii County | 231 | 8 | 3.5% |
| Kauai County | 85 | 6 | 7.1% |
| Kalawao County | 1 | 0 | 0.0% |
The 25 busiest poor-rated bridges in Hawaii
Frequently asked questions
How many bridges in Hawaii are in poor condition?
67 of Hawaii's 1,180 inventoried highway bridges are rated in poor condition (5.7%) in the 2025 National Bridge Inventory. 'Poor' is FHWA's classification for a bridge whose deck, superstructure, or substructure is rated 4 or lower on the 0-9 scale; it was formerly called 'structurally deficient'.
Are the poor-rated bridges in Hawaii safe to drive on?
A poor rating flags advanced deterioration that needs repair or close monitoring; it does not by itself mean a bridge is unsafe. Bridges judged unsafe are closed or restricted to lighter loads by the owner. Inspections continue on all open bridges, generally at least every 24 months under the National Bridge Inspection Standards.
Source: FHWA National Bridge Inventory, 2025 vintage, reported by the Hawaii DOT.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.