Rte 21 over 90IX Rte I90
Ontario County, New York · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rte 21 over 90IX Rte I90 in Ontario County, New York, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2019, making it 6 years old at the 2025 inventory.
- It carries about 15,661 vehicles a day (traffic count year 2020).
- It is one of 62 of the 180 inventoried bridges in Ontario County rated good (34.4%); 17 (9.4%) 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: substructure 9 to 8.
- Its most recent inspection on record is dated September 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 → (42.97824, -77.22591)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 241 ft |
| Location | Jct Rts 21 + Nys Thruway |
| NBI structure number | 000000001016470 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New York department of transportation.
Busiest bridges in Ontario County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte I90 over Ganargua Creek | 1947 | 58,094 | Fair |
| Rte I90 over Brownsville Rd | 1946 | 58,094 | Good |
| Rte I90 over CR 9 | 1947 | 58,094 | Fair |
| Rte I90 over High Street | 1947 | 58,094 | Fair |
| Rte I90 over Canandaigua Outlet | 2014 | 37,600 | Good |
| Rte I90 over Rte 14 | 1954 | 36,591 | Fair |
All bridges nearby: Ontario County, NY bridge conditions · every bridge in Ontario County · New York bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.