Covington RD over Lone Tree Creek
PoorLinn County, Iowa · 084083304 · Structure no. 000000000033730
- Built
- 1925
- 100 years old, rebuilt 1955
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 64 ft
- 1 main span
- Daily traffic
- 5,200
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Covington RD over Lone Tree Creek is a steel stringer/multi-beam or girder carrying Covington RD over Lone Tree Creek in Linn County, Iowa. It was built in 1925 and reconstructed in 1955, so it is 100 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.
It carries about 5,200 vehicles a day, projected to reach 5,200 by 2044. The structure is 64 ft (19.5 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 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 Covington RD over Lone Tree Creek built?
It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1955.
What condition is Covington RD over Lone Tree 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 June 2024.
How much traffic does Covington RD over Lone Tree Creek carry?
About 5,200 vehicles per day (2021 count).
How long is Covington RD over Lone Tree Creek?
The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.
Who owns Covington RD over Lone Tree Creek?
It is owned by the County Highway Agency.