Local - 770th over Small
PoorCass County, Iowa · 075343602 · Structure no. 000000000098021
- Built
- 1980
- 45 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 43 ft
- 1 main span
- Daily traffic
- 91
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local - 770th over Small is a steel stringer/multi-beam or girder carrying Local - 770th over Small in Cass County, Iowa. It was built in 1980, so it is 45 years old, younger 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 91 vehicles a day, roughly 35% of them trucks, projected to reach 91 by 2044. The structure is 43 ft (13.1 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Local - 770th over Small built?
It was built in 1980, making it 45 years old in 2025.
What condition is Local - 770th over Small 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 February 2024.
How much traffic does Local - 770th over Small carry?
About 91 vehicles per day (2022 count), of which roughly 35% are trucks.
How long is Local - 770th over Small?
The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 23 ft wide.
Who owns Local - 770th over Small?
It is owned by the County Highway Agency.