Route 9 Northbound over Mattabesset River
FairMiddlesex County, Connecticut · 1.5 MI South of Route 72 · Structure no. 05797
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 147 ft
- 1 main span
- Daily traffic
- 32,900
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Route 9 Northbound over Mattabesset River is a steel stringer/multi-beam or girder carrying Route 9 Northbound over Mattabesset River 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 32,900 vehicles a day, roughly 6% of them trucks, projected to reach 48,886 by 2042. The structure is 147 ft (44.9 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Route 9 Northbound over Mattabesset River built?
It was built in 1988, making it 37 years old in 2025.
What condition is Route 9 Northbound over Mattabesset River 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 Route 9 Northbound over Mattabesset River carry?
About 32,900 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Route 9 Northbound over Mattabesset River?
The structure is 147 ft (44.9 m) long with a longest span of 140 ft (42.7 m) and a deck 44 ft wide.
Who owns Route 9 Northbound over Mattabesset River?
It is owned by the State Highway Agency.