COUNTY ROAD 27
Carrying COUNTY ROAD 27 over S BR GRASSE RIVER
.1 m NE of DEGRASSE, St. Lawrence, New York
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: COUNTY ROAD 27
The COUNTY ROAD 27 bridge in St. Lawrence, New York carries COUNTY ROAD 27 over S BR GRASSE RIVER. It was built in 1952, making it 74 years old today. It was last reconstructed in 2021, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 13.1 meters (43 feet) end to end. Daily traffic averages 502 vehicles, placing it in the lower-traffic tier of New York bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 9/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 40.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How COUNTY ROAD 27 compares
Live comparison across New York.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1952
- Last Reconstructed
- 2021
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 13.1 m (43 ft)
- Deck Width
- 9.5 m (31 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 502 vehicles/day
- Structure Number
- 000000003341780
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 9/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether COUNTY ROAD 27 is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare COUNTY ROAD 27 against other structures in St. Lawrence and across New York. New York bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for COUNTY ROAD 27?
COUNTY ROAD 27 in St. Lawrence, New York has a deck rating of 7/9, superstructure rating of 9/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is COUNTY ROAD 27 inspected?
COUNTY ROAD 27's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 502 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. COUNTY ROAD 27 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for COUNTY ROAD 27?
COUNTY ROAD 27 has an NBI inventory load rating of 40.8 metric tons.
Who is responsible for maintaining COUNTY ROAD 27?
COUNTY ROAD 27 is owned and maintained by County Highway Agency.
How old is COUNTY ROAD 27 and does age affect safety?
COUNTY ROAD 27 was built in 1952, making it 74 years old and last reconstructed in 2021.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.