Mailbox RD over Crooked Creek 088
GoodYellowstone County, Montana · 6M NW Shepherd · Structure no. L56700003+00001
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 64 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Mailbox RD over Crooked Creek 088 is a prestressed concrete tee beam carrying Mailbox RD over Crooked Creek 088 in Yellowstone County, Montana. It was built in 2014, so it is 11 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 64 ft (19.5 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mailbox RD over Crooked Creek 088 built?
It was built in 2014, making it 11 years old in 2025.
What condition is Mailbox RD over Crooked Creek 088 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 June 2024.
How much traffic does Mailbox RD over Crooked Creek 088 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Mailbox RD over Crooked Creek 088?
The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.
Who owns Mailbox RD over Crooked Creek 088?
It is owned by the County Highway Agency.