S 16 over Usbr Main Canal
FairRichland County, Montana · Savage · Structure no. P00020032+01071
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 96 ft
- 1 main span
- Daily traffic
- 2,313
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 16 over Usbr Main Canal is a prestressed concrete stringer/multi-beam or girder carrying S 16 over Usbr Main Canal in Richland County, Montana. It was built in 1974, so it is 51 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,313 vehicles a day, roughly 13% of them trucks, projected to reach 2,440 by 2043. The structure is 96 ft (29.4 m) long and 46 ft wide. If it were closed, the detour would be 65.9 mi (106 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 16 over Usbr Main Canal built?
It was built in 1974, making it 51 years old in 2025.
What condition is S 16 over Usbr Main Canal in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.
How much traffic does S 16 over Usbr Main Canal carry?
About 2,313 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is S 16 over Usbr Main Canal?
The structure is 96 ft (29.4 m) long with a longest span of 95 ft (29 m) and a deck 46 ft wide.
Who owns S 16 over Usbr Main Canal?
It is owned by the State Highway Agency.