Simms Street over Ralston Creek
GoodJefferson County, Colorado · 0.3 MI S of 72nd Avenue · Structure no. ARVA-SS-0.70-01
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected March 2025
- Type
- Culvert
- Concrete
- Length
- 60 ft
- 4 main spans
- Daily traffic
- 9,302
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Simms Street over Ralston Creek is a concrete culvert carrying Simms Street over Ralston Creek in Jefferson County, Colorado. It was built in 1990, so it is 35 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 9,302 vehicles a day, roughly 2% of them trucks, projected to reach 10,697 by 2041. The structure is 60 ft (18.4 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Simms Street over Ralston Creek built?
It was built in 1990, making it 35 years old in 2025.
What condition is Simms Street over Ralston 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 March 2025.
How much traffic does Simms Street over Ralston Creek carry?
About 9,302 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is Simms Street over Ralston Creek?
The structure is 60 ft (18.4 m) long with a longest span of 16 ft (4.9 m) and a deck 59 ft wide.
Who owns Simms Street over Ralston Creek?
It is owned by the City or Municipal Highway Agency.