83rd ST (co RD 23) over Little Thompson River
GoodBoulder County, Colorado · 1.8 Mile North of Woodlan · Structure no. BC-23-1.9-LTH-B
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 252 ft
- 3 main spans
- Daily traffic
- 2,443
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
83rd ST (co RD 23) over Little Thompson River is a prestressed concrete box beam or girders - multiple carrying 83rd ST (co RD 23) over Little Thompson River in Boulder County, Colorado. It was built in 2017, so it is 8 years old, younger than the Colorado average of 42.2 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 2,443 vehicles a day, roughly 9% of them trucks, projected to reach 2,931 by 2042. The structure is 252 ft (76.8 m) long and 38 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 83rd ST (co RD 23) over Little Thompson River built?
It was built in 2017, making it 8 years old in 2025.
What condition is 83rd ST (co RD 23) over Little Thompson 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 January 2025.
How much traffic does 83rd ST (co RD 23) over Little Thompson River carry?
About 2,443 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is 83rd ST (co RD 23) over Little Thompson River?
The structure is 252 ft (76.8 m) long with a longest span of 79 ft (24.2 m) and a deck 38 ft wide.
Who owns 83rd ST (co RD 23) over Little Thompson River?
It is owned by the County Highway Agency.