Local over Knack Creek
PoorPosted for loadWebster County, Iowa · 086270704 · Structure no. 000000000341420
- Built
- 1915
- 110 years old, rebuilt 1988
- Condition
- Poor
- inspected November 2022
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 35 ft
- 1 main span
- Daily traffic
- 46
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Knack Creek is a steel stringer/multi-beam or girder carrying Local over Knack Creek in Webster County, Iowa. It was built in 1915 and reconstructed in 1988, so it is 110 years old, older than the Iowa average of 45.5 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 46 vehicles a day, projected to reach 46 by 2042. The structure is 35 ft (10.7 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Local over Knack Creek built?
It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1988.
What condition is Local over Knack Creek 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 2022.
How much traffic does Local over Knack Creek carry?
About 46 vehicles per day (2022 count).
How long is Local over Knack Creek?
The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.
Who owns Local over Knack Creek?
It is owned by the County Highway Agency.