Highland Lane over Irrigation Canal

Jefferson County, Oregon · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Highland Lane over Irrigation Canal in Jefferson County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
• It was built in 1955, making it 70 years old at the 2025 inventory.
• It carries about 225 vehicles a day (traffic count year 2020).
• Its listed owner is the county highway agency.
• It is one of 36 of the 80 inventoried bridges in Jefferson County rated fair (45.0%); 7 (8.8%) are rated poor.
• Its traffic status in the 2025 inventory is posted for load (NBI item 41).
• Its class is unchanged from 2024 (fair), but component ratings moved: substructure 7 to 6, deck 5 to 6.
• Status change: newly posted for load since 2024.
• Its most recent inspection on record is dated November 2024, on a 24-month routine inspection cycle.
• A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

View this bridge on a map → (44.53478, -121.17736)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.

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Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.