100 TH over Lost Grove Creek
PoorGreene County, Iowa · 085290401 · Structure no. 000000000162961
- Built
- 1914
- 111 years old, rebuilt 1977
- Condition
- Poor
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 21
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
100 TH over Lost Grove Creek is a concrete slab carrying 100 TH over Lost Grove Creek in Greene County, Iowa. It was built in 1914 and reconstructed in 1977, so it is 111 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 21 vehicles a day, projected to reach 21 by 2043. The structure is 23 ft (7 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 100 TH over Lost Grove Creek built?
It was built in 1914, making it 111 years old in 2025. It was reconstructed in 1977.
What condition is 100 TH over Lost Grove 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 April 2024.
How much traffic does 100 TH over Lost Grove Creek carry?
About 21 vehicles per day (2022 count).
How long is 100 TH over Lost Grove Creek?
The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 25 ft wide.
Who owns 100 TH over Lost Grove Creek?
It is owned by the County Highway Agency.