Bridge conditions in Morrow County, Oregon
71 inventoried bridges · 3 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Morrow County tracks close to typical: 3 of its 71 inventoried bridges (4.2%) are rated poor, against a national rate of about 7%.
- 3 of the 71 bridges in Morrow County, Oregon, are rated in poor condition (4.2%) in the 2025 National Bridge Inventory, as of .
- 29 bridges (40.8%) are rated good and 39 (54.9%) fair.
- The median Morrow County bridge was built in 1981.
- The busiest poor-rated bridge is Clarks Canyon Road over Willow Creek EB (built 1983), carrying about 81 vehicles a day.
Good 40.8% · Fair 54.9% · Poor 4.2% of 71 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 |
|---|---|---|---|
| Clarks Canyon Road over Willow Creek EB | 1983 | 81 | Poor |
| Buttermilk Can Rd over Rock Creek | 1965 | 54 | Poor |
| Kirk St. over Willow Creek | 1971 | 15 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-84 (hwy 2) EB over Port of Morrow I/c (EB) | 1984 | 10,457 | Good |
| I-84 (hwy 2) WB over Port of Morrow I/c (WB) | 1984 | 10,457 | Fair |
| I-84 (hwy 006) EB over Irrigon Jct Interchange | 1962 | 9,643 | Fair |
| I-84 (hwy 006) over Irrigon Jct Interchange | 1962 | 9,643 | Fair |
| I-84 (hwy 002) WB over Three Mile Canyon West | 1965 | 7,162 | Fair |
| I-84 (hwy 002) EB over Three Mile Canyon East | 1964 | 7,162 | Good |
| Patterson Ferry Rd over Patterson Ferry Rd Canal | 1973 | 6,066 | Fair |
| US 730 (hwy 002) over UPRR (clarke) | 1962 | 4,085 | Fair |
| US 730 (hwy 2) over Usrs Canal | 1962 | 4,085 | Fair |
| Or 74 (hwy 052) over Hinton Creek | 1921 | 2,909 | Fair |
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.