FM over Nelson Creek
PoorLyon County, Iowa · 098483204 · Structure no. 000000000229520
- Built
- 1966
- 59 years old
- Condition
- Poor
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 789
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Nelson Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Nelson Creek in Lyon County, Iowa. It was built in 1966, so it is 59 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 789 vehicles a day, roughly 16% of them trucks, projected to reach 789 by 2043. The structure is 80 ft (24.4 m) long and 30 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 FM over Nelson Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is FM over Nelson 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 July 2023.
How much traffic does FM over Nelson Creek carry?
About 789 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is FM over Nelson Creek?
The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.
Who owns FM over Nelson Creek?
It is owned by the County Highway Agency.