US 40 Ml over Beaver Brook
PoorJefferson County, Colorado · Behind Floyd Hill · Structure no. F-15-Q
- Built
- 1937
- 88 years old
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 48 ft
- 1 main span
- Daily traffic
- 480
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 40 Ml over Beaver Brook is a steel stringer/multi-beam or girder carrying US 40 Ml over Beaver Brook in Jefferson County, Colorado. It was built in 1937, so it is 88 years old, older than the Colorado average of 42.2 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.
It carries about 480 vehicles a day, roughly 3% of them trucks, projected to reach 706 by 2040. The structure is 48 ft (14.6 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 US 40 Ml over Beaver Brook built?
It was built in 1937, making it 88 years old in 2025.
What condition is US 40 Ml over Beaver Brook 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 August 2023.
How much traffic does US 40 Ml over Beaver Brook carry?
About 480 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is US 40 Ml over Beaver Brook?
The structure is 48 ft (14.6 m) long with a longest span of 44 ft (13.5 m) and a deck 34 ft wide.
Who owns US 40 Ml over Beaver Brook?
It is owned by the State Highway Agency.