FM - 690th over Nodaway River
PoorCass County, Iowa · 074351502 · Structure no. 000000000096930
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 170 ft
- 3 main spans
- Daily traffic
- 190
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM - 690th over Nodaway River is a prestressed concrete stringer/multi-beam or girder carrying FM - 690th over Nodaway River in Cass County, Iowa. It was built in 1970, so it is 55 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 3 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 190 vehicles a day, roughly 19% of them trucks, projected to reach 190 by 2044. The structure is 170 ft (51.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 FM - 690th over Nodaway River built?
It was built in 1970, making it 55 years old in 2025.
What condition is FM - 690th over Nodaway River 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 FM - 690th over Nodaway River carry?
About 190 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is FM - 690th over Nodaway River?
The structure is 170 ft (51.8 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.
Who owns FM - 690th over Nodaway River?
It is owned by the County Highway Agency.