County Road 18 over South Platte River
GoodWeld County, Colorado · 0.7 MI E of CO RD 25 · Structure no. WEL018.0_025.0A
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 240 ft
- 2 main spans
- Daily traffic
- 3,971
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
County Road 18 over South Platte River is a prestressed concrete continuous stringer/multi-beam or girder carrying County Road 18 over South Platte River in Weld County, Colorado. It was built in 1994, so it is 31 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 3,971 vehicles a day, roughly 52% of them trucks, projected to reach 5,638 by 2042. The structure is 240 ft (73.1 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 18 over South Platte River built?
It was built in 1994, making it 31 years old in 2025.
What condition is County Road 18 over South Platte 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 March 2024.
How much traffic does County Road 18 over South Platte River carry?
About 3,971 vehicles per day (2022 count), of which roughly 52% are trucks.
How long is County Road 18 over South Platte River?
The structure is 240 ft (73.1 m) long with a longest span of 117 ft (35.7 m) and a deck 39 ft wide.
Who owns County Road 18 over South Platte River?
It is owned by the City or Municipal Highway Agency.