Interstate 29 over Antelope Creek
GoodRichland County, North Dakota · 1 North Nd 13 · Structure no. 0029023510 L
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 150 ft
- 3 main spans
- Daily traffic
- 2,550
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 29 over Antelope Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Interstate 29 over Antelope Creek in Richland County, North Dakota. It was built in 1973, so it is 52 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 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 2,550 vehicles a day, roughly 22% of them trucks, projected to reach 2,550 by 2039. The structure is 150 ft (45.7 m) long and 45 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 29 over Antelope Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is Interstate 29 over Antelope Creek 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 September 2024.
How much traffic does Interstate 29 over Antelope Creek carry?
About 2,550 vehicles per day (2019 count), of which roughly 22% are trucks.
How long is Interstate 29 over Antelope Creek?
The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 45 ft wide.
Who owns Interstate 29 over Antelope Creek?
It is owned by the State Highway Agency.