Jackson County Bridge Report Card
Jackson County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Jackson County, Oregon
Jackson County has 399 bridges in the National Bridge Inventory, with 5 rated poor and 77 rated scour-critical. Its poor-condition share of 1.3% is at or below the 5.1% statewide average. Poor-condition bridges carry about 10,112 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Jackson County a Bridge Condition Exposure Score of 77/100 (C). The county has 399 bridges in the National Bridge Inventory, including 5 in poor condition and 77 rated scour-critical. Poor-condition bridges carry about 10,112 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 1.3% | 2.5 |
| Poor-condition traffic exposure | 25 | 0.5% of measured traffic | 0.3 |
| Scour-critical bridge share | 20 | 19.3% | 20.0 |
| Average age vs national baseline | 10 | 49 years vs 48 nationally | 0.5 |
| Traffic-data completeness | 5 | 2,234,102 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 1.3% |
| State Poor-Condition Share | 5.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 19.3% |
| Average Bridge Age | 49 years |
| Poor-Condition Traffic Exposure | 10,112 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Jackson County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Fredenburg Rd. over N Fk Big Butte Cr. | Poor condition + traffic exposure | Poor | 218 | 1975 |
| Eagle Pt - Main ST over Little Butte Creek | Poor condition + traffic exposure | Poor | 5,681 | 1947 |
| Valley View RD C#2 over I-5 (hwy 001) | Poor condition + traffic exposure | Poor | 4,170 | 1962 |
| Swingle Road over Trail Creek | Poor condition + traffic exposure | Poor | 33 | 1967 |
| No Data Entered over Cow Creek | Poor condition + traffic exposure | Poor | 10 | 1972 |
| I-5 (hwy 001) over Medford Viaduct | Scour-critical foundation rating | Fair | 53,404 | 1962 |
| I-5 (hwy 001) over Evans Creek | Scour-critical foundation rating | Fair | 37,706 | 1961 |
| I-5 (hwy 001) over Ward Creek | Scour-critical foundation rating | Fair | 37,706 | 1962 |
| Or 62 (hwy 022) over Bear Creek | Scour-critical foundation rating | Fair | 36,121 | 1961 |
| City Street 19t15 over Barnett Road At Bear CR | Scour-critical foundation rating | Fair | 31,423 | 2009 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.