Idaho RD over Wyellow CR
PoorLinn County, Missouri · S 21 T 57 N R 19 W · Structure no. 23195
- Built
- 1910
- 115 years old, rebuilt 1986
- Condition
- Poor
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 181 ft
- 3 main spans
- Daily traffic
- 30
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Idaho RD over Wyellow CR is a steel stringer/multi-beam or girder carrying Idaho RD over Wyellow CR in Linn County, Missouri. It was built in 1910 and reconstructed in 1986, so it is 115 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 33 by 2044. The structure is 181 ft (55.2 m) long and 16 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Idaho RD over Wyellow CR built?
It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1986.
What condition is Idaho RD over Wyellow CR in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.
How much traffic does Idaho RD over Wyellow CR carry?
About 30 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Idaho RD over Wyellow CR?
The structure is 181 ft (55.2 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.
Who owns Idaho RD over Wyellow CR?
It is owned by the County Highway Agency.