FHWA NBI 2024 Inspection record Public-domain dataset

IA 27

Carrying IA 27 over STREAM

2.6 mi. N of Jct. SR J72, Lee, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
26 t Inventory load rating

Bridge Snapshot: IA 27

The IA 27 bridge in Lee, Iowa carries IA 27 over STREAM. It was built in 1947, making it 79 years old today. It was last reconstructed in 2003, extending its service life. The structure is built primarily of concrete continuous and spans 2 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 7,200 vehicles, placing it in the moderately-trafficked tier of Iowa bridges. It is owned and maintained by State 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 25.9 metric tons.

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

How IA 27 compares

▼ 5.0
Load rating vs Iowa average (30.9 t)
Bottom 36%
Lower load rating than 64% of Iowa bridges
185
Bridges in Lee · 23 in Poor condition
IA 27 25.9 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
78.7 / 100 - historical 50–79.9 band
Structural adequacy /55
49.6
Serviceability /30
15.0
Essentiality /15
14.1
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Inventory Load Rating
25.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1947
Last Reconstructed
2003
Material
Concrete Continuous
Number of Spans
2
Structure Length
9.1 m (30 ft)
Owner
State Highway Agency
Avg Daily Traffic
7,200 vehicles/day
Structure Number
000000000218530

How to read this record

This page shows what the last federal inspection recorded, not whether IA 27 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 IA 27 against other structures in Lee 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 IA 27?

IA 27 in Lee, Iowa on the FHWA's 0–9 scale.

How often is IA 27 inspected?

IA 27'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 7,200 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. IA 27 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 IA 27?

IA 27 has an NBI inventory load rating of 25.9 metric tons.

Who is responsible for maintaining IA 27?

IA 27 is owned and maintained by State Highway Agency.

How old is IA 27 and does age affect safety?

IA 27 was built in 1947, making it 79 years old and last reconstructed in 2003.

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.