South Main Street over Brookfield Power Canal
Jefferson County, New York · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- South Main Street over Brookfield Power Canal in Jefferson County, New York, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- It carries about 1,819 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 128 of the 318 inventoried bridges in Jefferson County rated good (40.3%); 32 (10.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: deck 8 to 7, superstructure 9 to 7, substructure 9 to 7.
- Its most recent inspection on record is dated November 2024, 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 → (44.01092, -75.79503)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 7 | Good condition |
| Superstructure | 9 | 7 | Good condition |
| Substructure | 9 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 81 ft |
| Location | S Main St over Hydrocanal |
| NBI structure number | 000000003339610 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| 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 Jefferson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte 3 over Rte I81 Rte I81 | 2008 | 22,877 | Good |
| Rte 3 over CSX Mainline Exchange S | 2020 | 19,388 | Good |
| Rte I81 over Mill Creek | 1959 | 17,133 | Good |
| Rte I81 over Beaver Meadow Ck | 1957 | 17,133 | Fair |
| Rte 12F over Rte I81 Rte I81 | 1993 | 15,208 | Good |
| Rte I81 over Stony Creek | 1959 | 14,713 | Fair |
All bridges nearby: Jefferson County, NY bridge conditions · every bridge in Jefferson County · New York bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.