I-84 Westbound over Mad River
GoodNew Haven County, Connecticut · 250 W of Harpers Ferry · Structure no. 05774B
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 137 ft
- 1 main span
- Daily traffic
- 42,700
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I-84 Westbound over Mad River is a steel stringer/multi-beam or girder carrying I-84 Westbound over Mad River in New Haven County, Connecticut. It was built in 2018, so it is 7 years old, younger than the Connecticut average of 56.7 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 42,700 vehicles a day, roughly 9% of them trucks, projected to reach 63,448 by 2041. The structure is 137 ft (41.8 m) long and 63 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-84 Westbound over Mad River built?
It was built in 2018, making it 7 years old in 2025.
What condition is I-84 Westbound over Mad River 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-84 Westbound over Mad River carry?
About 42,700 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is I-84 Westbound over Mad River?
The structure is 137 ft (41.8 m) long with a longest span of 127 ft (38.8 m) and a deck 63 ft wide.
Who owns I-84 Westbound over Mad River?
It is owned by the State Highway Agency.