Flatbrook-millbroo over Vancampens Brook
Sussex County, New Jersey · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Flatbrook-millbroo over Vancampens Brook in Sussex County, New Jersey, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 216 vehicles a day (traffic count year 2022).
- It is one of 116 of the 172 inventoried bridges in Sussex County rated fair (67.4%); 15 (8.7%) 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 January 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (41.07281, -74.96258)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 20 ft |
| Location | at Millbrook Village on C |
| NBI structure number | 4320042P0000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Jersey department of transportation.
Busiest bridges in Sussex County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 over Musconetcong River | 1972 | 61,525 | Fair |
| I-80 EB over Waterloo Road (CR 604) | 1973 | 39,468 | Fair |
| I-80 WB over Waterloo Road (CR 604) | 1973 | 39,468 | Fair |
| Nj 15 over Ny Susquehanna West.rr | 2003 | 28,918 | Good |
| Nj 23 over Br. Franklin Lake | 1948 | 25,140 | Fair |
| US 206 over Lubbers Run | 2014 | 24,475 | Fair |
All bridges nearby: Sussex County, NJ bridge conditions · every bridge in Sussex County · New Jersey bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.