Tyrell Road over South Brook
Dutchess County, New York · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tyrell Road over South Brook in Dutchess County, New York, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1992, making it 33 years old at the 2025 inventory.
- It carries about 118 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 203 of the 333 inventoried bridges in Dutchess County rated fair (61.0%); 54 (16.2%) 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 May 2023, 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 → (41.77611, -73.74478)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 32 ft |
| Location | 2.5 Miles SW of Millbrook |
| NBI structure number | 000000003344100 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| 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 York department of transportation.
Busiest bridges in Dutchess County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte 84 over MNRR Beacon Line | 2018 | 52,529 | Good |
| Rte I84 over First Farm Road | 1963 | 48,307 | Fair |
| Rte 44 over Fallkill Creek | 1977 | 43,091 | Fair |
| Rte 44 over Fall Kill | 1977 | 43,091 | Good |
| Rte 44 over Rte 9 | 1965 | 38,047 | Fair |
| Rte 9 over Academy Street | 1965 | 37,651 | Fair |
All bridges nearby: Dutchess County, NY bridge conditions · every bridge in Dutchess County · New York bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.