FHWA NBI 2024 Inspection record Public-domain dataset

NE 24TH COURT

Carrying NE 24TH COURT over FOUR MILE CREEK

NE 24th Ct over 4 Mile Cr, Polk, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
36 t Inventory load rating

Bridge Snapshot: NE 24TH COURT

The NE 24TH COURT bridge in Polk, Iowa carries NE 24TH COURT over FOUR MILE CREEK. It was built in 2017, making it 9 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 46.1 meters (151 feet) end to end. Daily traffic averages 150 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 a deck rating of 7/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 36.0 metric tons.

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

How NE 24TH COURT compares

▲ 5.1
Load rating vs Iowa average (30.9 t)
Top 26%
Higher load rating than 74% of Iowa bridges
415
Bridges in Polk · 25 in Poor condition
NE 24TH COURT 36.0 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
95.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
25.0
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 How the historical reference is calculated.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

Deck
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
36.0 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2017
Material
Concrete Continuous
Number of Spans
3
Structure Length
46.1 m (151 ft)
Deck Width
10.1 m (33 ft)
Owner
County Highway Agency
Avg Daily Traffic
150 vehicles/day
Structure Number
000000000281841

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether NE 24TH COURT 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 NE 24TH COURT against other structures in Polk 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 NE 24TH COURT?

NE 24TH COURT in Polk, Iowa has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is NE 24TH COURT inspected?

NE 24TH COURT'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 150 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. NE 24TH COURT 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 NE 24TH COURT?

NE 24TH COURT has an NBI inventory load rating of 36.0 metric tons.

Who is responsible for maintaining NE 24TH COURT?

NE 24TH COURT is owned and maintained by County Highway Agency.

How old is NE 24TH COURT and does age affect safety?

NE 24TH COURT was built in 2017, making it 9 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.