N4 over N Fk Big Nemaha River
PoorPawnee County, Nebraska · 1E Table Rock · Structure no. S004 19795
- Built
- 1950
- 75 years old, rebuilt 1972
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 233 ft
- 3 main spans
- Daily traffic
- 1,385
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N4 over N Fk Big Nemaha River is a steel continuous stringer/multi-beam or girder carrying N4 over N Fk Big Nemaha River in Pawnee County, Nebraska. It was built in 1950 and reconstructed in 1972, so it is 75 years old, older than the Nebraska average of 47.1 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 1,385 vehicles a day, roughly 9% of them trucks, projected to reach 1,870 by 2038. The structure is 233 ft (71 m) long and 43 ft wide. If it were closed, the detour would be 31.1 mi (50 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N4 over N Fk Big Nemaha River built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1972.
What condition is N4 over N Fk Big Nemaha River 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 June 2024.
How much traffic does N4 over N Fk Big Nemaha River carry?
About 1,385 vehicles per day (2018 count), of which roughly 9% are trucks.
How long is N4 over N Fk Big Nemaha River?
The structure is 233 ft (71 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.
Who owns N4 over N Fk Big Nemaha River?
It is owned by the State Highway Agency.