I-91 NB TR 818 over INTERSTATE-91 Northbound
FairMiddlesex County, Connecticut · 1.4 MI N of Route 373 · Structure no. 05807
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 175 ft
- 1 main span
- Daily traffic
- 6,700
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-91 NB TR 818 over INTERSTATE-91 Northbound is a steel stringer/multi-beam or girder carrying I-91 NB TR 818 over INTERSTATE-91 Northbound in Middlesex County, Connecticut. It was built in 1988, so it is 37 years old, younger than the Connecticut average of 56.7 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 6,700 vehicles a day, roughly 9% of them trucks, projected to reach 9,956 by 2042. The structure is 175 ft (53.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 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 I-91 NB TR 818 over INTERSTATE-91 Northbound built?
It was built in 1988, making it 37 years old in 2025.
What condition is I-91 NB TR 818 over INTERSTATE-91 Northbound 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 August 2024.
How much traffic does I-91 NB TR 818 over INTERSTATE-91 Northbound carry?
About 6,700 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is I-91 NB TR 818 over INTERSTATE-91 Northbound?
The structure is 175 ft (53.4 m) long with a longest span of 166 ft (50.6 m) and a deck 36 ft wide.
Who owns I-91 NB TR 818 over INTERSTATE-91 Northbound?
It is owned by the State Highway Agency.