INTERSTATE-91 NB over Route 99
FairHartford County, Connecticut · Intersection I-91&ROUTE99 · Structure no. 01448
- Built
- 1964
- 61 years old, rebuilt 2000
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 200 ft
- 3 main spans
- Daily traffic
- 71,700
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
INTERSTATE-91 NB over Route 99 is a steel stringer/multi-beam or girder carrying INTERSTATE-91 NB over Route 99 in Hartford County, Connecticut. It was built in 1964 and reconstructed in 2000, so it is 61 years old, older 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 5 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 71,700 vehicles a day, roughly 9% of them trucks, projected to reach 106,539 by 2035. The structure is 200 ft (61.1 m) long and 79 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was INTERSTATE-91 NB over Route 99 built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2000.
What condition is INTERSTATE-91 NB over Route 99 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 2023.
How much traffic does INTERSTATE-91 NB over Route 99 carry?
About 71,700 vehicles per day (2015 count), of which roughly 9% are trucks.
How long is INTERSTATE-91 NB over Route 99?
The structure is 200 ft (61.1 m) long with a longest span of 119 ft (36.3 m) and a deck 79 ft wide.
Who owns INTERSTATE-91 NB over Route 99?
It is owned by the State Highway Agency.