FHWA NBI 2024 Inspection record Public-domain dataset

BRIDGE 2904,T-546

Carrying BRIDGE 2904,T-546 over OVER LT.NESHANNOCK W. BR

BEND RD. WILMINGTON TWP., Mercer, Pennsylvania

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
46 t Inventory load rating

Bridge Snapshot: BRIDGE 2904,T-546

The BRIDGE 2904,T-546 bridge in Mercer, Pennsylvania carries BRIDGE 2904,T-546 over OVER LT.NESHANNOCK W. BR. It was built in 1956, making it 70 years old today. The structure is built primarily of steel and spans 1 section, stretching 19.5 meters (64 feet) end to end. Daily traffic averages 603 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 46.3 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How BRIDGE 2904,T-546 compares

▲ 7.0
Load rating vs Pennsylvania average (39.3 t)
Top 23%
Higher load rating than 77% of Pennsylvania bridges
273
Bridges in Mercer · 37 in Poor condition
BRIDGE 2904,T-546 46.3 t
Pennsylvania average 39.3 t

Live comparison across Pennsylvania.

Historical Sufficiency Rating

PlainBridge-computed
69.5 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
13.2
Essentiality /15
14.3
Special reductions
−3.0

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 How the historical reference is calculated.

Condition Ratings

Deck
4/9
Poor (1–4)
Superstructure
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
46.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1956
Material
Steel
Number of Spans
1
Structure Length
19.5 m (64 ft)
Deck Width
7.6 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
603 vehicles/day
Structure Number
000000000026295

Condition Analysis

  • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
  • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

BRIDGE 2904,T-546 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 2904,T-546 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 2904,T-546?

BRIDGE 2904,T-546 in Mercer, Pennsylvania has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is BRIDGE 2904,T-546 inspected?

BRIDGE 2904,T-546'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 603 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. BRIDGE 2904,T-546 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 2904,T-546?

BRIDGE 2904,T-546 has an NBI inventory load rating of 46.3 metric tons.

Who is responsible for maintaining BRIDGE 2904,T-546?

BRIDGE 2904,T-546 is owned and maintained by County Highway Agency.

How old is BRIDGE 2904,T-546 and does age affect safety?

BRIDGE 2904,T-546 was built in 1956, making it 70 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.