Bridge conditions in Klamath County, Oregon
248 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Klamath County tracks close to typical: 11 of its 248 inventoried bridges (4.4%) are rated poor, against a national rate of about 7%.
- 11 of the 248 bridges in Klamath County, Oregon, are rated in poor condition (4.4%) in the 2025 National Bridge Inventory, as of .
- 98 bridges (39.5%) are rated good and 139 (56.0%) fair.
- The median Klamath County bridge was built in 1979.
- The busiest poor-rated bridge is E Langell Vly Rd over Drain Ditch (built 1976), carrying about 446 vehicles a day.
Good 39.5% · Fair 56.0% · Poor 4.4% of 248 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 |
|---|---|---|---|
| E Langell Vly Rd over Drain Ditch | 1976 | 446 | Poor |
| Ivory Pine Road over Meryl Creek | 1970 | 434 | Poor |
| E Langell Vly Rd over Lost River | 1967 | 398 | Poor |
| Odell Lk Access Rd over Trapper Creek | 1982 | 130 | Poor |
| Floating Point Rd over Little Deschutes River | 1980 | 73 | Poor |
| Road over South Fork Sprague River | 1961 | 50 | Poor |
| Road over Long Branch Creek | 1958 | 50 | Poor |
| Saddle Mt Pit Rd over Sprague River | 1965 | 45 | Poor |
| Road over Williamson River | 1969 | 23 | Poor |
| Road over Brown Creek | 1967 | 20 | Poor |
| Road over Jack Creek | 1959 | 6 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Or 140 (hwy 020) over Usrs Canal | 1930 | 20,461 | Fair |
| Or 140 (hwy 020) over Link River | 1931 | 19,357 | Fair |
| Or 140 (hwy 020) over City St & UPRR | 1957 | 19,357 | Fair |
| Shasta Way over A Canal | 1979 | 16,068 | Good |
| S Side Bypass over UPRR | 1986 | 11,928 | Fair |
| S Side Bypass over BNSF & Klamath River | 1986 | 11,850 | Good |
| Southside Bypass over 1 C Ditch | 1979 | 10,777 | Fair |
| Homedale Rd over A Canal | 2003 | 10,392 | Fair |
| US 97 (hwy 004) over Hwy 20 & Link River | 1963 | 9,958 | Fair |
| US 97 (hwy 004) over California Ave | 2004 | 9,958 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Oregon: Oregon 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.