NB US 218 over F50 (oak Crest Hill Rd)
GoodJohnson County, Iowa · 1.6 Mi. S of Jct. Ia 1 · Structure no. 000000000605000
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 241 ft
- 3 main spans
- Daily traffic
- 8,150
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
NB US 218 over F50 (oak Crest Hill Rd) is a prestressed concrete stringer/multi-beam or girder carrying NB US 218 over F50 (oak Crest Hill Rd) in Johnson County, Iowa. It was built in 1983, so it is 42 years old, younger than the Iowa average of 45.5 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 8,150 vehicles a day, roughly 19% of them trucks, projected to reach 8,150 by 2044. The structure is 241 ft (73.5 m) long and 43 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NB US 218 over F50 (oak Crest Hill Rd) built?
It was built in 1983, making it 42 years old in 2025.
What condition is NB US 218 over F50 (oak Crest Hill Rd) 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 April 2024.
How much traffic does NB US 218 over F50 (oak Crest Hill Rd) carry?
About 8,150 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is NB US 218 over F50 (oak Crest Hill Rd)?
The structure is 241 ft (73.5 m) long with a longest span of 97 ft (29.6 m) and a deck 43 ft wide.
Who owns NB US 218 over F50 (oak Crest Hill Rd)?
It is owned by the State Highway Agency.