FHWA NBI 2024 Inspection record Public-domain dataset

261ST ST/CR 850N

Carrying 261ST ST/CR 850N over I-65 NB

02.91 N SR 47, Boone, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Unknown

Bridge Snapshot: 261ST ST/CR 850N

The 261ST ST/CR 850N bridge in Boone, Indiana carries 261ST ST/CR 850N over I-65 NB. It was built in 1969, making it 57 years old today. The structure is built primarily of steel continuous. Daily traffic averages 21,686 vehicles, placing it in the heavily-trafficked tier of Indiana bridges.

The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.

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

How 261ST ST/CR 850N compares

235
Bridges in Boone · 10 in Poor condition

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
95.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
14.9
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 How the historical reference is calculated.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

Overall Condition
Unrated

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

Structural Details

Year Built
1969
Material
Steel Continuous
Avg Daily Traffic
21,686 vehicles/day
Structure Number
037330

How to read this record

This page shows what the last federal inspection recorded, not whether 261ST ST/CR 850N 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 261ST ST/CR 850N against other structures in Boone 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 261ST ST/CR 850N?

261ST ST/CR 850N in Boone, Indiana on the FHWA's 0–9 scale.

How often is 261ST ST/CR 850N inspected?

261ST ST/CR 850N'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 21,686 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 261ST ST/CR 850N is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for 261ST ST/CR 850N?

An inventory load rating is not recorded for 261ST ST/CR 850N.

Who is responsible for maintaining 261ST ST/CR 850N?

Ownership is not specified for 261ST ST/CR 850N in the NBI.

How old is 261ST ST/CR 850N and does age affect safety?

261ST ST/CR 850N was built in 1969, making it 57 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.