Convict Grade RD over Sheilds River
GoodPark County, Montana · 6M NE of Livingston · Structure no. 000000201903819
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 106 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Convict Grade RD over Sheilds River is a prestressed concrete stringer/multi-beam or girder carrying Convict Grade RD over Sheilds River in Park County, Montana. It was built in 2019, so it is 6 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 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 106 ft (32.3 m) long and 28 ft wide. If it were closed, the detour would be 34.8 mi (56 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | 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 Convict Grade RD over Sheilds River built?
It was built in 2019, making it 6 years old in 2025.
What condition is Convict Grade RD over Sheilds River 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 2023.
How much traffic does Convict Grade RD over Sheilds River carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Convict Grade RD over Sheilds River?
The structure is 106 ft (32.3 m) long with a longest span of 103 ft (31.4 m) and a deck 28 ft wide.
Who owns Convict Grade RD over Sheilds River?
It is owned by the County Highway Agency.