Is 70 W over Rt J
FairBoone County, Missouri · S 9 T 48 N R 14 W · Structure no. 3634
- Built
- 1985
- 40 years old
- Condition
- Fair
- inspected September 2023
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 19,913
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 70 W over Rt J is a prestressed concrete continuous tee beam carrying Is 70 W over Rt J in Boone County, Missouri. It was built in 1985, so it is 40 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 19,913 vehicles a day, roughly 24% of them trucks, projected to reach 32,856 by 2044. The structure is 120 ft (36.6 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 70 W over Rt J built?
It was built in 1985, making it 40 years old in 2025.
What condition is Is 70 W over Rt J 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 September 2023.
How much traffic does Is 70 W over Rt J carry?
About 19,913 vehicles per day (2024 count), of which roughly 24% are trucks.
How long is Is 70 W over Rt J?
The structure is 120 ft (36.6 m) long with a longest span of 46 ft (14 m) and a deck 41 ft wide.
Who owns Is 70 W over Rt J?
It is owned by the State Highway Agency.