Csah 18 over Marsh River
GoodNorman County, Minnesota · 1.0 MI N of JCT CR 161 · Structure no. 54523
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 110 ft
- 2 main spans
- Daily traffic
- 199
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 18 over Marsh River is a prestressed concrete tee beam carrying Csah 18 over Marsh River in Norman County, Minnesota. It was built in 1978, so it is 47 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 199 vehicles a day, projected to reach 245 by 2041. The structure is 110 ft (33.5 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 18 over Marsh River built?
It was built in 1978, making it 47 years old in 2025.
What condition is Csah 18 over Marsh River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.
How much traffic does Csah 18 over Marsh River carry?
About 199 vehicles per day (2021 count).
How long is Csah 18 over Marsh River?
The structure is 110 ft (33.5 m) long with a longest span of 53 ft (16.3 m) and a deck 35 ft wide.
Who owns Csah 18 over Marsh River?
It is owned by the County Highway Agency.