So Center ST over Linn Creek
PoorMarshall County, Iowa · 084183504 · Structure no. 000000000035400
- Built
- 1951
- 74 years old
- Condition
- Poor
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 105 ft
- 2 main spans
- Daily traffic
- 10,448
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
So Center ST over Linn Creek is a steel continuous stringer/multi-beam or girder carrying So Center ST over Linn Creek in Marshall County, Iowa. It was built in 1951, so it is 74 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 10,448 vehicles a day, roughly 2% of them trucks, projected to reach 10,448 by 2043. The structure is 105 ft (32 m) long and 48 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 | 4 Poor | Advanced section loss, deterioration, 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 So Center ST over Linn Creek built?
It was built in 1951, making it 74 years old in 2025.
What condition is So Center ST over Linn 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 So Center ST over Linn Creek carry?
About 10,448 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is So Center ST over Linn Creek?
The structure is 105 ft (32 m) long with a longest span of 52 ft (15.9 m) and a deck 48 ft wide.
Who owns So Center ST over Linn Creek?
It is owned by the City or Municipal Highway Agency.