FHWA NBI 2024 Inspection record Public-domain dataset

M16 380TH STREET

Carrying M16 380TH STREET over STREAM

076400402, Pottawattamie, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
62 t Inventory load rating

Bridge Snapshot: M16 380TH STREET

The M16 380TH STREET bridge in Pottawattamie, Iowa carries M16 380TH STREET over STREAM. It was built in 2021, making it 5 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 289 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 9/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 61.9 metric tons.

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

How M16 380TH STREET compares

▲ 31.0
Load rating vs Iowa average (30.9 t)
Top 2%
Higher load rating than 98% of Iowa bridges
469
Bridges in Pottawattamie · 48 in Poor condition
M16 380TH STREET 61.9 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
9/9
Good (7–9)
Inventory Load Rating
61.9 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2021
Material
Concrete Continuous
Number of Spans
2
Structure Length
7.6 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
289 vehicles/day
Structure Number
000000000287871

How to read this record

This page shows what the last federal inspection recorded, not whether M16 380TH STREET 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 M16 380TH STREET against other structures in Pottawattamie 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 M16 380TH STREET?

M16 380TH STREET in Pottawattamie, Iowa on the FHWA's 0–9 scale.

How often is M16 380TH STREET inspected?

M16 380TH STREET'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 289 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. M16 380TH STREET 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 M16 380TH STREET?

M16 380TH STREET has an NBI inventory load rating of 61.9 metric tons.

Who is responsible for maintaining M16 380TH STREET?

M16 380TH STREET is owned and maintained by County Highway Agency.

How old is M16 380TH STREET and does age affect safety?

M16 380TH STREET was built in 2021, making it 5 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.