Black Rock Tpke over Metro North Railroad
FairFairfield County, Connecticut · 0.2 MI S of US Route 1 · Structure no. 05432
- Built
- 1900
- 125 years old, rebuilt 1987
- Condition
- Fair
- inspected December 2022
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 114 ft
- 2 main spans
- Daily traffic
- 10,800
- 2020 count
- Owner
- Unknown
- Unknown
About this bridge
Black Rock Tpke over Metro North Railroad is a prestressed concrete continuous box beam or girders - multiple carrying Black Rock Tpke over Metro North Railroad in Fairfield County, Connecticut. It was built in 1900 and reconstructed in 1987, so it is 125 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 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 10,800 vehicles a day, roughly 3% of them trucks, projected to reach 16,048 by 2040. The structure is 114 ft (34.7 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black Rock Tpke over Metro North Railroad built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1987.
What condition is Black Rock Tpke over Metro North Railroad 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 December 2022.
How much traffic does Black Rock Tpke over Metro North Railroad carry?
About 10,800 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is Black Rock Tpke over Metro North Railroad?
The structure is 114 ft (34.7 m) long with a longest span of 56 ft (17.1 m) and a deck 37 ft wide.
Who owns Black Rock Tpke over Metro North Railroad?
It is owned by the Unknown and maintained by the State Highway Agency.