Bridge conditions in Kay County, Oklahoma
419 inventoried bridges · 22 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Kay County tracks close to typical: 22 of its 419 inventoried bridges (5.3%) are rated poor, against a national rate of about 7%.
- 22 of the 419 bridges in Kay County, Oklahoma, are rated in poor condition (5.3%) in the 2025 National Bridge Inventory, as of .
- 129 bridges (30.8%) are rated good and 268 (64.0%) fair.
- The median Kay County bridge was built in 1976.
- The busiest poor-rated bridge is E0180 over Chikaskia River Oflow (built 2017), carrying about 2,886 vehicles a day.
Good 30.8% · Fair 64.0% · Poor 5.3% of 419 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| E0180 over Chikaskia River Oflow | 2017 | 2,886 | Poor |
| E0180 over Chikaskia River | 1962 | 1,500 | Poor |
| E0150 over Creek | 1950 | 250 | Poor |
| N3400 over Creek | 1965 | 150 | Poor |
| E0270 over Creek | 1919 | 118 | Poor |
| N3420 over Sweetwater Creek | 1940 | 100 | Poor |
| N3130 over Deer Creek | 1987 | 100 | Poor |
| E0120 over Lost Creek | 1910 | 100 | Poor |
| E0110 over Rabbit Creek | 1965 | 90 | Poor |
| N3220 over Scatter Creek | 1950 | 75 | Poor |
| E0250 over Creek | 1925 | 72 | Poor |
| N3140 over Chikaskia River | 1925 | 50 | Poor |
| N3210 over Bitter Creek | 1940 | 50 | Poor |
| N3130 over Doe Creek | 1950 | 50 | Poor |
| E0170 over Stink Creek | 1950 | 50 | Poor |
| E0010 over Creek | 1912 | 45 | Poor |
| E0010 over Creek | 1912 | 45 | Poor |
| N3480 over Myers Creek | 1920 | 38 | Poor |
| E0030 over Spring Creek | 1950 | 37 | Poor |
| N3350 over Chilocco Creek | 1940 | 25 | Poor |
| E0100 over Creek | 1950 | 24 | Poor |
| E0050 over Shoo Fly Creek | 1956 | 24 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 over Salt Fk Ark Rvr Oflow | 1959 | 17,500 | Good |
| I-35 over Salt Fk Ark Rvr Oflow | 1962 | 17,500 | Fair |
| I-35 over Salt Fk Ark Rvr Oflow | 1962 | 17,500 | Fair |
| I-35 over Creek | 1959 | 15,700 | Fair |
| I-35 over Creek | 1960 | 15,500 | Fair |
| I-35 over Dry Creek | 1959 | 14,300 | Fair |
| U.S. 77 over Creek | 1958 | 10,300 | Fair |
| U.S. 77 over Creek | 1951 | 10,100 | Fair |
| U.S. 77 over Creek | 1956 | 8,800 | Fair |
| U.S. 77 over Spring Creek | 1956 | 8,800 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Oklahoma: Oklahoma bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.