550th RD over Coates Br
GoodPolk County, Missouri · S 1 T 31 N R 24 W · Structure no. 33053
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 70 ft
- 1 main span
- Daily traffic
- 20
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
550th RD over Coates Br is a prestressed concrete stringer/multi-beam or girder carrying 550th RD over Coates Br in Polk County, Missouri. It was built in 2009, so it is 16 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 29 by 2044. The structure is 70 ft (21.3 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 550th RD over Coates Br built?
It was built in 2009, making it 16 years old in 2025.
What condition is 550th RD over Coates Br in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does 550th RD over Coates Br carry?
About 20 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is 550th RD over Coates Br?
The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 24 ft wide.
Who owns 550th RD over Coates Br?
It is owned by the County Highway Agency.