Boundary Road over Big Brook
PoorMonmouth County, New Jersey · 2 MI South of Route 18 · Structure no. 130ML55
- Built
- 1969
- 56 years old
- Condition
- Poor
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 95 ft
- 3 main spans
- Daily traffic
- 2,795
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Boundary Road over Big Brook is a prestressed concrete box beam or girders - multiple carrying Boundary Road over Big Brook in Monmouth County, New Jersey. It was built in 1969, so it is 56 years old, younger than the New Jersey average of 58.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 2,795 vehicles a day, roughly 3% of them trucks, projected to reach 3,354 by 2043. The structure is 95 ft (29 m) long and 40 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Boundary Road over Big Brook built?
It was built in 1969, making it 56 years old in 2025.
What condition is Boundary Road over Big Brook in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.
How much traffic does Boundary Road over Big Brook carry?
About 2,795 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Boundary Road over Big Brook?
The structure is 95 ft (29 m) long with a longest span of 46 ft (14 m) and a deck 40 ft wide.
Who owns Boundary Road over Big Brook?
It is owned by the County Highway Agency.