Main ST over Cannonball River
PoorPosted for loadHettinger County, North Dakota · 1 South of New England · Structure no. 000000021103070
- Built
- 1912
- 113 years old
- Condition
- Poor
- inspected September 2024
- Type
- Truss - Thru
- Steel
- Length
- 149 ft
- 1 main span
- Daily traffic
- 50
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Main ST over Cannonball River is a steel truss - thru carrying Main ST over Cannonball River in Hettinger County, North Dakota. It was built in 1912, so it is 113 years old, older than the North Dakota average of 48.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 500 by 2039. The structure is 149 ft (45.3 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Main ST over Cannonball River built?
It was built in 1912, making it 113 years old in 2025.
What condition is Main ST over Cannonball River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Main ST over Cannonball River carry?
About 50 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is Main ST over Cannonball River?
The structure is 149 ft (45.3 m) long with a longest span of 70 ft (21.3 m) and a deck 22 ft wide.
Who owns Main ST over Cannonball River?
It is owned by the County Highway Agency.