FHWA NBI 2024 Inspection record Public-domain dataset

TILLMAN RD

Carrying TILLMAN RD over HIGHLAND DRAIN 4

00.20 W OF S HANNA ST, Allen, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
34 t Inventory load rating

Bridge Snapshot: TILLMAN RD

The TILLMAN RD bridge in Allen, Indiana carries TILLMAN RD over HIGHLAND DRAIN 4. It was built in 1966, making it 60 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 12,125 vehicles, placing it in the heavily-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 3/9, substructure at 6/9. 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 34.3 metric tons.

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

How TILLMAN RD compares

▼ 1.3
Load rating vs Indiana average (35.6 t)
Top 42%
Higher load rating than 58% of Indiana bridges
601
Bridges in Allen · 41 in Poor condition
TILLMAN RD 34.3 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
31.4 / 100 - historical 20–49.9 band
Structural adequacy /55
15.0
Serviceability /30
6.0
Essentiality /15
10.4
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
3/9
Poor (1–4)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
34.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1966
Material
Prestressed Concrete
Number of Spans
1
Structure Length
7.9 m (26 ft)
Deck Width
20.1 m (66 ft)
Owner
County Highway Agency
Avg Daily Traffic
12,125 vehicles/day
Structure Number
0200277

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 3/9, advanced deterioration that should be prioritized for repair.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

TILLMAN 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 TILLMAN 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 TILLMAN RD?

TILLMAN RD in Allen, Indiana has a deck rating of 5/9, superstructure rating of 3/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is TILLMAN RD inspected?

TILLMAN 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 12,125 vehicles per day.

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

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

TILLMAN RD has an NBI inventory load rating of 34.3 metric tons.

Who is responsible for maintaining TILLMAN RD?

TILLMAN RD is owned and maintained by County Highway Agency.

How old is TILLMAN RD and does age affect safety?

TILLMAN RD was built in 1966, making it 60 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.