FHWA NBI 2024 Inspection record Public-domain dataset

FM

Carrying FM over SMALL CREEK

080322303, Guthrie, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
23 t Inventory load rating

Bridge Snapshot: FM

The FM bridge in Guthrie, Iowa carries FM over SMALL CREEK. It was built in 1965, making it 61 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 10.4 meters (34 feet) end to end. Daily traffic averages 417 vehicles, placing it in the lower-traffic tier of Iowa bridges. It is owned and maintained by County 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 22.7 metric tons.

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

How FM compares

▼ 8.2
Load rating vs Iowa average (30.9 t)
Bottom 27%
Lower load rating than 73% of Iowa bridges
236
Bridges in Guthrie · 90 in Poor condition
FM 22.7 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
61.8 / 100 - historical 50–79.9 band
Structural adequacy /55
20.2
Serviceability /30
27.0
Essentiality /15
14.6
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 How the historical reference is calculated.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
22.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1965
Material
Concrete Continuous
Number of Spans
3
Structure Length
10.4 m (34 ft)
Owner
County Highway Agency
Avg Daily Traffic
417 vehicles/day
Structure Number
000000000169300

How to read this record

FM 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 FM against other structures in Guthrie and across Iowa. Iowa 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 FM?

FM in Guthrie, Iowa on the FHWA's 0–9 scale.

How often is FM inspected?

FM'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 417 vehicles per day.

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

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

FM has an NBI inventory load rating of 22.7 metric tons.

Who is responsible for maintaining FM?

FM is owned and maintained by County Highway Agency.

How old is FM and does age affect safety?

FM was built in 1965, making it 61 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.