Na Cnty RD 305 over North Platte River
FairNatrona County, Wyoming · Robertson Rd. · Structure no. LJD
- Built
- 2002
- 23 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 388 ft
- 3 main spans
- Daily traffic
- 7,360
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Na Cnty RD 305 over North Platte River is a steel continuous stringer/multi-beam or girder carrying Na Cnty RD 305 over North Platte River in Natrona County, Wyoming. It was built in 2002, so it is 23 years old, younger than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 7,360 vehicles a day, roughly 2% of them trucks, projected to reach 10,304 by 2043. The structure is 388 ft (118.3 m) long and 64 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Na Cnty RD 305 over North Platte River built?
It was built in 2002, making it 23 years old in 2025.
What condition is Na Cnty RD 305 over North Platte River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does Na Cnty RD 305 over North Platte River carry?
About 7,360 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Na Cnty RD 305 over North Platte River?
The structure is 388 ft (118.3 m) long with a longest span of 153 ft (46.6 m) and a deck 64 ft wide.
Who owns Na Cnty RD 305 over North Platte River?
It is owned by the City or Municipal Highway Agency.