Monroe Lane over North Unit Canal
FairPosted for loadJefferson County, Oregon · 1.3 MI W of HWY 97 · Structure no. 15451 129 00677
- Built
- 1947
- 78 years old, rebuilt 1994
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 70 ft
- 3 main spans
- Daily traffic
- 603
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Monroe Lane over North Unit Canal is a wood or timber stringer/multi-beam or girder carrying Monroe Lane over North Unit Canal in Jefferson County, Oregon. It was built in 1947 and reconstructed in 1994, so it is 78 years old, older than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 603 vehicles a day, roughly 5% of them trucks, projected to reach 693 by 2025. The structure is 70 ft (21.3 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Monroe Lane over North Unit Canal built?
It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1994.
What condition is Monroe Lane over North Unit Canal in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.
How much traffic does Monroe Lane over North Unit Canal carry?
About 603 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Monroe Lane over North Unit Canal?
The structure is 70 ft (21.3 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.
Who owns Monroe Lane over North Unit Canal?
It is owned by the County Highway Agency.