Route Nj 21 over Water Mains
FairEssex County, New Jersey · 0.8 MI S of 3-21 JCT · Structure no. 0717157
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected February 2023
- Type
- Frame
- Concrete Continuous
- Length
- 76 ft
- 2 main spans
- Daily traffic
- 75,430
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Route Nj 21 over Water Mains is a concrete continuous frame carrying Route Nj 21 over Water Mains in Essex County, New Jersey. It was built in 1961, so it is 64 years old, older than the New Jersey average of 58.5 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 75,430 vehicles a day, roughly 5% of them trucks, projected to reach 92,030 by 2043. The structure is 76 ft (23.2 m) long and 111 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route Nj 21 over Water Mains built?
It was built in 1961, making it 64 years old in 2025.
What condition is Route Nj 21 over Water Mains 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 February 2023.
How much traffic does Route Nj 21 over Water Mains carry?
About 75,430 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Route Nj 21 over Water Mains?
The structure is 76 ft (23.2 m) long with a longest span of 35 ft (10.7 m) and a deck 111 ft wide.
Who owns Route Nj 21 over Water Mains?
It is owned by the State Highway Agency.