FHWA NBI 2024 Inspection record Public-domain dataset

FERGUSON RD

Carrying FERGUSON RD over ST MARYS RIVER

00.10 E MULDOON RD, Allen, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
45 t Inventory load rating

Bridge Snapshot: FERGUSON RD

The FERGUSON RD bridge in Allen, Indiana carries FERGUSON RD over ST MARYS RIVER. It was built in 1972, making it 54 years old today. The structure is built primarily of prestressed concrete and spans 4 sections, stretching 83.2 meters (273 feet) end to end. Daily traffic averages 5,750 vehicles, placing it in the moderately-trafficked tier of Indiana bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 6/9, substructure at 6/9. 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. Its NBI inventory load rating is 44.5 metric tons.

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

How FERGUSON RD compares

▲ 8.9
Load rating vs Indiana average (35.6 t)
Top 15%
Higher load rating than 85% of Indiana bridges
601
Bridges in Allen · 41 in Poor condition
FERGUSON RD 44.5 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
89.8 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
20.7
Essentiality /15
14.1
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 How the historical reference is calculated.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

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

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

Structural Details

Year Built
1972
Material
Prestressed Concrete
Number of Spans
4
Structure Length
83.2 m (273 ft)
Deck Width
21.2 m (70 ft)
Owner
County Highway Agency
Avg Daily Traffic
5,750 vehicles/day
Structure Number
0200249

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.

How to read this record

FERGUSON RD 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 FERGUSON RD against other structures in Allen and across Indiana. Indiana 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 FERGUSON RD?

FERGUSON RD in Allen, Indiana has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is FERGUSON RD inspected?

FERGUSON RD'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 5,750 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FERGUSON RD 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 FERGUSON RD?

FERGUSON RD has an NBI inventory load rating of 44.5 metric tons.

Who is responsible for maintaining FERGUSON RD?

FERGUSON RD is owned and maintained by County Highway Agency.

How old is FERGUSON RD and does age affect safety?

FERGUSON RD was built in 1972, making it 54 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.