Norris RD over Helena Valley Canal 114
GoodPosted for loadLewis and Clark County, Montana · 4M NW Helena · Structure no. L25655002+03001
- Built
- 1958
- 67 years old
- Condition
- Good
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 25 ft
- 1 main span
- Daily traffic
- 491
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Norris RD over Helena Valley Canal 114 is a wood or timber stringer/multi-beam or girder carrying Norris RD over Helena Valley Canal 114 in Lewis and Clark County, Montana. It was built in 1958, so it is 67 years old, older 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. Its operating status is: posted for load restriction.
It carries about 491 vehicles a day, roughly 3% of them trucks, projected to reach 523 by 2043. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Norris RD over Helena Valley Canal 114 built?
It was built in 1958, making it 67 years old in 2025.
What condition is Norris RD over Helena Valley Canal 114 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 February 2025.
How much traffic does Norris RD over Helena Valley Canal 114 carry?
About 491 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Norris RD over Helena Valley Canal 114?
The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 28 ft wide.
Who owns Norris RD over Helena Valley Canal 114?
It is owned by the County Highway Agency.