US 36 Ml over Left Hand Creek
GoodBoulder County, Colorado · 6.2 MI So of JCT SH 66 · Structure no. D-15-BT
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected August 2023
- Type
- Girder and Floorbeam System
- Prestressed Concrete
- Length
- 155 ft
- 1 main span
- Daily traffic
- 13,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
US 36 Ml over Left Hand Creek is a prestressed concrete girder and floorbeam system carrying US 36 Ml over Left Hand Creek in Boulder County, Colorado. It was built in 2019, so it is 6 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 13,000 vehicles a day, roughly 4% of them trucks, projected to reach 14,949 by 2038. The structure is 155 ft (47.2 m) long and 67 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 36 Ml over Left Hand Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is US 36 Ml over Left Hand 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 August 2023.
How much traffic does US 36 Ml over Left Hand Creek carry?
About 13,000 vehicles per day (2018 count), of which roughly 4% are trucks.
How long is US 36 Ml over Left Hand Creek?
The structure is 155 ft (47.2 m) long with a longest span of 150 ft (45.7 m) and a deck 67 ft wide.
Who owns US 36 Ml over Left Hand Creek?
It is owned by the State Highway Agency.