Route 8 NB over Ramp from Lower Derby RD
FairNew Haven County, Connecticut · .8M S of Ent 21 Route 8NB · Structure no. 00584
- Built
- 1961
- 64 years old, rebuilt 1989
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 142 ft
- 3 main spans
- Daily traffic
- 52,800
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Route 8 NB over Ramp from Lower Derby RD is a steel stringer/multi-beam or girder carrying Route 8 NB over Ramp from Lower Derby RD in New Haven County, Connecticut. It was built in 1961 and reconstructed in 1989, so it is 64 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 52,800 vehicles a day, roughly 5% of them trucks, projected to reach 78,456 by 2038. The structure is 142 ft (43.3 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 8 NB over Ramp from Lower Derby RD built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1989.
What condition is Route 8 NB over Ramp from Lower Derby RD 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 July 2023.
How much traffic does Route 8 NB over Ramp from Lower Derby RD carry?
About 52,800 vehicles per day (2018 count), of which roughly 5% are trucks.
How long is Route 8 NB over Ramp from Lower Derby RD?
The structure is 142 ft (43.3 m) long with a longest span of 54 ft (16.5 m) and a deck 44 ft wide.
Who owns Route 8 NB over Ramp from Lower Derby RD?
It is owned by the State Highway Agency.