Co Rt 521 over Beaver Brook
Warren County, New Jersey · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Co Rt 521 over Beaver Brook in Warren County, New Jersey, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1970, making it 55 years old at the 2025 inventory.
- It carries about 4,024 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 50 of the 268 inventoried bridges in Warren County rated good (18.7%); 12 (4.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (40.92776, -74.9595)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 40 ft |
| Location | 0.23 Mi North of I80 |
| NBI structure number | 2101105 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Jersey department of transportation.
Busiest bridges in Warren County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 over Kittatinny Beach Road | 1953 | 74,343 | Fair |
| I-80 over Camp Weygant Road | 1953 | 74,343 | Fair |
| I-80 & Service Rd over Dunnfield Creek | 1953 | 62,106 | Fair |
| I-80 over Pequest River | 1969 | 60,200 | Fair |
| I-80 over Bear Creek | 1967 | 59,709 | Fair |
| I-80 & CR 675 over Stoney Brook | 1953 | 55,570 | Fair |
All bridges nearby: Warren County, NJ bridge conditions · every bridge in Warren County · New Jersey bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.