OLD IRON RD
Carrying OLD IRON RD over FRENE CR
S 16 T 45 N R 5 W, Gasconade, Missouri
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: OLD IRON RD
The OLD IRON RD bridge in Gasconade, Missouri carries OLD IRON RD over FRENE CR. It was built in 1990, making it 36 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 75 vehicles, placing it in the lower-traffic tier of Missouri bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 27.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How OLD IRON RD compares
Live comparison across Missouri.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1990
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 8.5 m (28 ft)
- Deck Width
- 10.4 m (34 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 75 vehicles/day
- Structure Number
- 12438
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether OLD IRON RD 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 IRON RD against other structures in Gasconade and across Missouri. Missouri 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 IRON RD?
OLD IRON RD in Gasconade, Missouri on the FHWA's 0–9 scale.
How often is OLD IRON RD inspected?
OLD IRON 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 75 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD IRON RD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for OLD IRON RD?
OLD IRON RD has an NBI inventory load rating of 27.9 metric tons.
Who is responsible for maintaining OLD IRON RD?
OLD IRON RD is owned and maintained by County Highway Agency.
How old is OLD IRON RD and does age affect safety?
OLD IRON RD was built in 1990, making it 36 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.
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.