FHWA NBI 2024 Inspection record Public-domain dataset

DELBROOK DRIVE

Carrying DELBROOK DRIVE over UNT HOWARD JOHNSON DITCH

00.20 E OF MERIDIAN ST, Marion, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
26 t Inventory load rating

Bridge Snapshot: DELBROOK DRIVE

The DELBROOK DRIVE bridge in Marion, Indiana carries DELBROOK DRIVE over UNT HOWARD JOHNSON DITCH. It was built in 1968, making it 58 years old today. The structure is built primarily of steel and spans 2 sections, stretching 6.2 meters (20 feet) end to end. Daily traffic averages 2,143 vehicles, placing it in the moderately-trafficked tier of Indiana bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 26.1 metric tons.

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

How DELBROOK DRIVE compares

▼ 9.5
Load rating vs Indiana average (35.6 t)
Bottom 15%
Lower load rating than 85% of Indiana bridges
964
Bridges in Marion · 36 in Poor condition
DELBROOK DRIVE 26.1 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
48.4 / 100 - historical 20–49.9 band
Structural adequacy /55
24.9
Serviceability /30
9.0
Essentiality /15
14.5
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Inventory Load Rating
26.1 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1968
Material
Steel
Number of Spans
2
Structure Length
6.2 m (20 ft)
Deck Width
14.9 m (49 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
2,143 vehicles/day
Structure Number
4900679

How to read this record

DELBROOK DRIVE 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 DELBROOK DRIVE against other structures in Marion 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 DELBROOK DRIVE?

DELBROOK DRIVE in Marion, Indiana on the FHWA's 0–9 scale.

How often is DELBROOK DRIVE inspected?

DELBROOK DRIVE'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 2,143 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. DELBROOK DRIVE 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 DELBROOK DRIVE?

DELBROOK DRIVE has an NBI inventory load rating of 26.1 metric tons.

Who is responsible for maintaining DELBROOK DRIVE?

DELBROOK DRIVE is owned and maintained by City/Municipal Highway Agency.

How old is DELBROOK DRIVE and does age affect safety?

DELBROOK DRIVE was built in 1968, making it 58 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.