SH 300 Ml over California Gulch
PoorLake County, Colorado · 0.3 MI E of JCT SH · Structure no. H-11-AB
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 24 ft
- 1 main span
- Daily traffic
- 1,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 300 Ml over California Gulch is a wood or timber stringer/multi-beam or girder carrying SH 300 Ml over California Gulch in Lake County, Colorado. It was built in 1939, so it is 86 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 1,600 vehicles a day, roughly 4% of them trucks, projected to reach 2,784 by 2040. The structure is 24 ft (7.3 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 300 Ml over California Gulch built?
It was built in 1939, making it 86 years old in 2025.
What condition is SH 300 Ml over California Gulch 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 October 2024.
How much traffic does SH 300 Ml over California Gulch carry?
About 1,600 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is SH 300 Ml over California Gulch?
The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 27 ft wide.
Who owns SH 300 Ml over California Gulch?
It is owned by the State Highway Agency.