Csah 18 over Yellow Medicine River
FairPosted for loadYellow Medicine County, Minnesota · 1.7 MI E of JCT Csah 8 · Structure no. 87525
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 200 ft
- 5 main spans
- Daily traffic
- 297
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 18 over Yellow Medicine River is a wood or timber stringer/multi-beam or girder carrying Csah 18 over Yellow Medicine River in Yellow Medicine County, Minnesota. It was built in 1977, so it is 48 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 297 vehicles a day, projected to reach 365 by 2041. The structure is 200 ft (61.1 m) long and 38 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 18 over Yellow Medicine River built?
It was built in 1977, making it 48 years old in 2025.
What condition is Csah 18 over Yellow Medicine River 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 September 2023.
How much traffic does Csah 18 over Yellow Medicine River carry?
About 297 vehicles per day (2021 count).
How long is Csah 18 over Yellow Medicine River?
The structure is 200 ft (61.1 m) long with a longest span of 40 ft (12.2 m) and a deck 38 ft wide.
Who owns Csah 18 over Yellow Medicine River?
It is owned by the County Highway Agency.