Mo 163 S over Is 70
FairBoone County, Missouri · S 1 T 48 N R 13 W · Structure no. 65
- Built
- 1957
- 68 years old, rebuilt 1983
- Condition
- Fair
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 171 ft
- 4 main spans
- Daily traffic
- 16,864
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 163 S over Is 70 is a concrete continuous slab carrying Mo 163 S over Is 70 in Boone County, Missouri. It was built in 1957 and reconstructed in 1983, so it is 68 years old, older 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 16,864 vehicles a day, roughly 4% of them trucks, projected to reach 31,198 by 2044. The structure is 171 ft (52.1 m) long and 79 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Mo 163 S over Is 70 built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1983.
What condition is Mo 163 S over Is 70 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 Mo 163 S over Is 70 carry?
About 16,864 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is Mo 163 S over Is 70?
The structure is 171 ft (52.1 m) long with a longest span of 44 ft (13.4 m) and a deck 79 ft wide.
Who owns Mo 163 S over Is 70?
It is owned by the State Highway Agency.