Bridge conditions in Multnomah County, Oregon
473 inventoried bridges · 12 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
12 of the 473 bridges the federal inventory lists in Multnomah County are rated poor; the rest split 56 good and 405 fair.
- 12 of the 473 bridges in Multnomah County, Oregon, are rated in poor condition (2.5%) in the 2025 National Bridge Inventory, as of .
- 56 bridges (11.8%) are rated good and 405 (85.6%) fair.
- The median Multnomah County bridge was built in 1968.
- The busiest poor-rated bridge is NW Broadway Ramp over Broadway St Conn (built 1913), carrying about 30,388 vehicles a day.
Good 11.8% · Fair 85.6% · Poor 2.5% of 473 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 |
|---|---|---|---|
| NW Broadway Ramp over Broadway St Conn | 1913 | 30,388 | Poor |
| Hwy 123 over BNSF | 1909 | 14,374 | Poor |
| Columbia Blvd over B-78 over Bnrr | 1909 | 13,910 | Poor |
| I-84 (hwy 002) EB over Mccord Creek | 1962 | 13,746 | Poor |
| N Burgard St over B-1 over Up/sprr | 1930 | 13,113 | Poor |
| Hwy 1W (steel Br) over Willamette River | 1910 | 11,732 | Poor |
| 174TH Ave over Johnson Creek | 1950 | 9,838 | Poor |
| US26 (hwy 026AC) over Arthur St Viaduct | 1947 | 8,710 | Poor |
| Fas A656 over Sandy River | 1914 | 6,445 | Poor |
| Fessenden St over Burlington Northern R&R | 1909 | 4,931 | Poor |
| FAU9956 over Johnson Creek | 1930 | 2,901 | Poor |
| Hwy 100 over Viaduct | 1914 | 901 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Hwy 064 over Division St | 1979 | 166,664 | Fair |
| Hwy 064 over Hwy 026 | 1979 | 166,664 | Fair |
| Hwy 064 over Hwy 064 Conn 2 | 1979 | 161,490 | Fair |
| Hwy 064 over Harold St | 1978 | 151,700 | Fair |
| Hwy 002 over OXNG Hwy 002 WB Conn | 1955 | 151,336 | Fair |
| Hwy 064 over Columbia River | 1982 | 148,936 | Fair |
| Hwy 064 (I-205) over Columbia R./So. Channel | 1982 | 148,936 | Fair |
| Holgate Blvd over Hwy 064 | 1978 | 148,453 | Fair |
| Sandy Blvd over Hwy 2 I-84 & Lrt Tracks | 1984 | 147,564 | Good |
| Hwy 002 over NE Sullivan St. | 1958 | 147,564 | 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.