I-71 NB over TR-66 (dyer Rd.)
GoodMadison County, Ohio · 2.45 MI N of SR323 · Structure no. 4903307
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 119 ft
- 3 main spans
- Daily traffic
- 18,136
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
I-71 NB over TR-66 (dyer Rd.) is a concrete continuous slab carrying I-71 NB over TR-66 (dyer Rd.) in Madison County, Ohio. It was built in 1964, so it is 61 years old, older than the Ohio average of 47.3 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 18,136 vehicles a day, roughly 21% of them trucks, projected to reach 25,173 by 2035. The structure is 119 ft (36.3 m) long and 44 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-71 NB over TR-66 (dyer Rd.) built?
It was built in 1964, making it 61 years old in 2025.
What condition is I-71 NB over TR-66 (dyer 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 September 2024.
How much traffic does I-71 NB over TR-66 (dyer Rd.) carry?
About 18,136 vehicles per day (2015 count), of which roughly 21% are trucks.
How long is I-71 NB over TR-66 (dyer Rd.)?
The structure is 119 ft (36.3 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.
Who owns I-71 NB over TR-66 (dyer Rd.)?
It is owned by the State Highway Agency.