FHWA NBI 2024 Inspection record Public-domain dataset

OLD 24

Carrying OLD 24 over MARSH DRAIN

01.00 E SR 101, Allen, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
44 t Inventory load rating

Bridge Snapshot: OLD 24

The OLD 24 bridge in Allen, Indiana carries OLD 24 over MARSH DRAIN. It was built in 1952, making it 74 years old today. It was last reconstructed in 2013, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 46.2 meters (152 feet) end to end. Daily traffic averages 1,301 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 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 44.4 metric tons.

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

How OLD 24 compares

▲ 8.8
Load rating vs Indiana average (35.6 t)
Top 16%
Higher load rating than 84% of Indiana bridges
601
Bridges in Allen · 41 in Poor condition
OLD 24 44.4 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
99.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.7
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
44.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1952
Last Reconstructed
2013
Material
Steel Continuous
Number of Spans
3
Structure Length
46.2 m (152 ft)
Deck Width
11.7 m (38 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,301 vehicles/day
Structure Number
0200655

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether OLD 24 is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare OLD 24 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 OLD 24?

OLD 24 in Allen, Indiana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is OLD 24 inspected?

OLD 24'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 1,301 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. OLD 24 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for OLD 24?

OLD 24 has an NBI inventory load rating of 44.4 metric tons.

Who is responsible for maintaining OLD 24?

OLD 24 is owned and maintained by County Highway Agency.

How old is OLD 24 and does age affect safety?

OLD 24 was built in 1952, making it 74 years old and last reconstructed in 2013.

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.