Rs 1158 over North Fork Little Osage
PoorPosted for loadAllen County, Kansas · 4.2E 0.2N of Mildred · Structure no. 000000000010550
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 96 ft
- 3 main spans
- Daily traffic
- 61
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
Rs 1158 over North Fork Little Osage is a steel stringer/multi-beam or girder carrying Rs 1158 over North Fork Little Osage in Allen County, Kansas. It was built in 1940, so it is 85 years old, older than the Kansas average of 52.8 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. Its operating status is: posted for load restriction.
It carries about 61 vehicles a day, projected to reach 79 by 2044. The structure is 96 ft (29.3 m) long and 23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 | 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 Rs 1158 over North Fork Little Osage built?
It was built in 1940, making it 85 years old in 2025.
What condition is Rs 1158 over North Fork Little Osage 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 February 2024.
How much traffic does Rs 1158 over North Fork Little Osage carry?
About 61 vehicles per day (2006 count).
How long is Rs 1158 over North Fork Little Osage?
The structure is 96 ft (29.3 m) long with a longest span of 31 ft (9.4 m) and a deck 23 ft wide.
Who owns Rs 1158 over North Fork Little Osage?
It is owned by the County Highway Agency.