OLD COUNTY RD N
Carrying OLD COUNTY RD N over COLLINS BROOK
2.4 MI. DEERING TL, Hillsborough, New Hampshire
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: OLD COUNTY RD N
The OLD COUNTY RD N bridge in Hillsborough, New Hampshire carries OLD COUNTY RD N over COLLINS BROOK. It was built in 1981, making it 45 years old today. The structure is built primarily of steel and spans 2 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 90 vehicles, placing it in the lower-traffic tier of New Hampshire bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 3/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How OLD COUNTY RD N compares
Live comparison across New Hampshire.
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 How the historical reference is calculated.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
- 1981
- Material
- Steel
- Number of Spans
- 2
- Structure Length
- 9.1 m (30 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 90 vehicles/day
- Structure Number
- 008600910014200
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
OLD COUNTY RD N is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare OLD COUNTY RD N against other structures in Hillsborough and across New Hampshire. New Hampshire 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 OLD COUNTY RD N?
OLD COUNTY RD N in Hillsborough, New Hampshire on the FHWA's 0–9 scale.
How often is OLD COUNTY RD N inspected?
OLD COUNTY RD N'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 90 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD COUNTY RD N is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for OLD COUNTY RD N?
An inventory load rating is not recorded for OLD COUNTY RD N.
Who is responsible for maintaining OLD COUNTY RD N?
OLD COUNTY RD N is owned and maintained by City/Municipal Highway Agency.
How old is OLD COUNTY RD N and does age affect safety?
OLD COUNTY RD N was built in 1981, making it 45 years old.
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.