Rt Nn E over Is 55
PoorPerry County, Missouri · S 20 T 36 N R 10 E · Structure no. 2122
- Built
- 1970
- 55 years old, rebuilt 1984
- Condition
- Poor
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 295 ft
- 4 main spans
- Daily traffic
- 364
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rt Nn E over Is 55 is a steel continuous stringer/multi-beam or girder carrying Rt Nn E over Is 55 in Perry County, Missouri. It was built in 1970 and reconstructed in 1984, so it is 55 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 364 vehicles a day, roughly 15% of them trucks, projected to reach 510 by 2044. The structure is 295 ft (89.9 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rt Nn E over Is 55 built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1984.
What condition is Rt Nn E over Is 55 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 September 2023.
How much traffic does Rt Nn E over Is 55 carry?
About 364 vehicles per day (2024 count), of which roughly 15% are trucks.
How long is Rt Nn E over Is 55?
The structure is 295 ft (89.9 m) long with a longest span of 100 ft (30.5 m) and a deck 31 ft wide.
Who owns Rt Nn E over Is 55?
It is owned by the State Highway Agency.