FHWA NBI 2024 Inspection record Public-domain dataset

SR 358,HADLEY RDAD

Carrying SR 358,HADLEY RDAD over OVER LITTLE SHENANGO TR

PERRY TOWNSHIP, Mercer, Pennsylvania

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: SR 358,HADLEY RDAD

The SR 358,HADLEY RDAD bridge in Mercer, Pennsylvania carries SR 358,HADLEY RDAD over OVER LITTLE SHENANGO TR. It was built in 1984, making it 42 years old today. The structure is built primarily of steel and spans 1 section, stretching 6.1 meters (20 feet) end to end. Daily traffic averages 2,452 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 6/9. The weakest component sits in fair 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 358,HADLEY RDAD compares

▼ 6.6
Load rating vs Pennsylvania average (39.3 t)
Bottom 22%
Lower load rating than 78% of Pennsylvania bridges
273
Bridges in Mercer · 37 in Poor condition
SR 358,HADLEY RDAD 32.7 t
Pennsylvania average 39.3 t

Live comparison across Pennsylvania.

Historical Sufficiency Rating

PlainBridge-computed
94.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
24.9
Essentiality /15
14.3
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1984
Material
Steel
Number of Spans
1
Structure Length
6.1 m (20 ft)
Deck Width
13.7 m (45 ft)
Owner
State Highway Agency
Avg Daily Traffic
2,452 vehicles/day
Structure Number
000000000025877

How to read this record

This page shows what the last federal inspection recorded, not whether SR 358,HADLEY RDAD 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 358,HADLEY RDAD 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 358,HADLEY RDAD?

SR 358,HADLEY RDAD in Mercer, Pennsylvania on the FHWA's 0–9 scale.

How often is SR 358,HADLEY RDAD inspected?

SR 358,HADLEY RDAD'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 2,452 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. SR 358,HADLEY RDAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for SR 358,HADLEY RDAD?

SR 358,HADLEY RDAD has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining SR 358,HADLEY RDAD?

SR 358,HADLEY RDAD is owned and maintained by State Highway Agency.

How old is SR 358,HADLEY RDAD and does age affect safety?

SR 358,HADLEY RDAD 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.