BRIDGE 2450, T-397
Carrying BRIDGE 2450, T-397 over OVER HARTHEGIG RUN
LACKAWANNOCK TWP, Mercer, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: BRIDGE 2450, T-397
The BRIDGE 2450, T-397 bridge in Mercer, Pennsylvania carries BRIDGE 2450, T-397 over OVER HARTHEGIG RUN. It was built in 1963, making it 63 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 220 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 47.2 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How BRIDGE 2450, T-397 compares
Live comparison across Pennsylvania.
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 How the historical reference is calculated.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
- 1963
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 7.9 m (26 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 220 vehicles/day
- Structure Number
- 000000000056667
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
BRIDGE 2450, T-397 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 BRIDGE 2450, T-397 against other structures in Mercer and across Pennsylvania. Pennsylvania 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 BRIDGE 2450, T-397?
BRIDGE 2450, T-397 in Mercer, Pennsylvania on the FHWA's 0–9 scale.
How often is BRIDGE 2450, T-397 inspected?
BRIDGE 2450, T-397'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 220 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. BRIDGE 2450, T-397 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 BRIDGE 2450, T-397?
BRIDGE 2450, T-397 has an NBI inventory load rating of 47.2 metric tons.
Who is responsible for maintaining BRIDGE 2450, T-397?
BRIDGE 2450, T-397 is owned and maintained by Town/Township Highway Agency.
How old is BRIDGE 2450, T-397 and does age affect safety?
BRIDGE 2450, T-397 was built in 1963, making it 63 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.