FHWA NBI 2024 Inspection record Public-domain dataset

FOURTH ST

Carrying FOURTH ST over SPY RUN CREEK

00.10 W OF SPY RUN AVE, Allen, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
33 t Inventory load rating

Bridge Snapshot: FOURTH ST

The FOURTH ST bridge in Allen, Indiana carries FOURTH ST over SPY RUN CREEK. It was built in 1921, making it 105 years old today. The structure is built primarily of concrete and spans 1 section, stretching 19.8 meters (65 feet) end to end. Daily traffic averages 3,025 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 5/9, superstructure at 4/9, substructure at 5/9. 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 32.7 metric tons.

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

How FOURTH ST compares

▼ 2.9
Load rating vs Indiana average (35.6 t)
Bottom 36%
Lower load rating than 64% of Indiana bridges
601
Bridges in Allen · 41 in Poor condition
FOURTH ST 32.7 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
50.4 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
9.0
Essentiality /15
14.4
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1921
Material
Concrete
Number of Spans
1
Structure Length
19.8 m (65 ft)
Deck Width
13.1 m (43 ft)
Owner
County Highway Agency
Avg Daily Traffic
3,025 vehicles/day
Structure Number
0200261

Condition Analysis

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

How to read this record

FOURTH ST 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 FOURTH ST 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 FOURTH ST?

FOURTH ST in Allen, Indiana has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is FOURTH ST inspected?

FOURTH ST'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 3,025 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FOURTH ST 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 FOURTH ST?

FOURTH ST has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining FOURTH ST?

FOURTH ST is owned and maintained by County Highway Agency.

How old is FOURTH ST and does age affect safety?

FOURTH ST was built in 1921, making it 105 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.