County Road 21 over Roaring Brook
Essex County, New York · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 21 over Roaring Brook in Essex County, New York, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2015, making it 10 years old at the 2025 inventory.
- It carries about 1,095 vehicles a day (traffic count year 2017).
- Its listed owner is the county highway agency.
- It is one of 125 of the 260 inventoried bridges in Essex County rated good (48.1%); 24 (9.2%) 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 September 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 → (44.27452, -73.93703)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Concrete frame |
| Length | about 37 ft |
| Location | 1.9 Miles N. Rte. 73 |
| NBI structure number | 000000003371270 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 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 York department of transportation.
Busiest bridges in Essex County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte 86 over Outlet Brook | 1935 | 9,484 | Fair |
| Rte 73 over Chubb River | 1959 | 8,268 | Good |
| Rte I87 over Mud Brook | 1966 | 8,072 | Good |
| Rte I87 over Mcguire Brook | 1965 | 6,930 | Fair |
| Montcalm Street over Lachute River | 1918 | 6,851 | Fair |
| River Street Ext over Outlet Brook | 1984 | 6,437 | Poor |
All bridges nearby: Essex County, NY bridge conditions · every bridge in Essex County · New York bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.