SR 158,MERCER ROAD
Carrying SR 158,MERCER ROAD over OVER NESHANNOCK CREEK TR
WILMINGTON TOWNSHIP, Mercer, Pennsylvania
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SR 158,MERCER ROAD
The SR 158,MERCER ROAD bridge in Mercer, Pennsylvania carries SR 158,MERCER ROAD over OVER NESHANNOCK CREEK TR. It was built in 1984, making it 42 years old today. The structure is built primarily of steel and spans 1 section, stretching 6.7 meters (22 feet) end to end. Daily traffic averages 1,443 vehicles, placing it in the moderately-trafficked tier of Pennsylvania bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 32.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SR 158,MERCER ROAD 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 How the historical reference is calculated.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
- 1984
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 6.7 m (22 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,443 vehicles/day
- Structure Number
- 000000000025820
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether SR 158,MERCER ROAD 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 SR 158,MERCER ROAD 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 SR 158,MERCER ROAD?
SR 158,MERCER ROAD in Mercer, Pennsylvania on the FHWA's 0–9 scale.
How often is SR 158,MERCER ROAD inspected?
SR 158,MERCER ROAD'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 1,443 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SR 158,MERCER ROAD 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 SR 158,MERCER ROAD?
SR 158,MERCER ROAD has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining SR 158,MERCER ROAD?
SR 158,MERCER ROAD is owned and maintained by State Highway Agency.
How old is SR 158,MERCER ROAD and does age affect safety?
SR 158,MERCER ROAD was built in 1984, making it 42 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.