County Highway over Big Slough
PoorClosed to trafficOtoe County, Nebraska · 4.8N 3.7E Dunbar · Structure no. C006620860
- Built
- 1935
- 90 years old
- Condition
- Poor
- inspected September 2023
- Type
- Truss - Thru
- Steel
- Length
- 118 ft
- 1 main span
- Daily traffic
- 10
- 2003 count
- Owner
- County
- County Highway Agency
About this bridge
County Highway over Big Slough is a steel truss - thru carrying County Highway over Big Slough in Otoe County, Nebraska. It was built in 1935, so it is 90 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 3 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. Its operating status is: closed to all traffic.
It carries about 10 vehicles a day, projected to reach 17 by 2033. The structure is 118 ft (36 m) long and 13 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 County Highway over Big Slough built?
It was built in 1935, making it 90 years old in 2025.
What condition is County Highway over Big Slough 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 County Highway over Big Slough carry?
About 10 vehicles per day (2003 count).
How long is County Highway over Big Slough?
The structure is 118 ft (36 m) long with a longest span of 60 ft (18.3 m) and a deck 13 ft wide.
Who owns County Highway over Big Slough?
It is owned by the County Highway Agency.