FHWA NBI 2024 Inspection record Public-domain dataset

W DAKTOA AVE

Carrying W DAKTOA AVE over RIO GRANDE CREEK

098440201, Lyon, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
39 t Inventory load rating

Bridge Snapshot: W DAKTOA AVE

The W DAKTOA AVE bridge in Lyon, Iowa carries W DAKTOA AVE over RIO GRANDE CREEK. It was built in 2011, making it 15 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 27.7 meters (91 feet) end to end. Daily traffic averages 1,349 vehicles, placing it in the moderately-trafficked tier of Iowa bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. 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 38.9 metric tons.

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

How W DAKTOA AVE compares

▲ 8.0
Load rating vs Iowa average (30.9 t)
Top 19%
Higher load rating than 81% of Iowa bridges
241
Bridges in Lyon · 51 in Poor condition
W DAKTOA AVE 38.9 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
93.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
25.9
Essentiality /15
14.9
Special reductions
−2.0

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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
38.9 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2011
Material
Concrete Continuous
Number of Spans
3
Structure Length
27.7 m (91 ft)
Deck Width
10.1 m (33 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,349 vehicles/day
Structure Number
000000000505015

Condition Analysis

  • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
  • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • 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 W DAKTOA AVE 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 W DAKTOA AVE against other structures in Lyon 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 W DAKTOA AVE?

W DAKTOA AVE in Lyon, Iowa has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is W DAKTOA AVE inspected?

W DAKTOA AVE'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 1,349 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. W DAKTOA AVE 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 W DAKTOA AVE?

W DAKTOA AVE has an NBI inventory load rating of 38.9 metric tons.

Who is responsible for maintaining W DAKTOA AVE?

W DAKTOA AVE is owned and maintained by City/Municipal Highway Agency.

How old is W DAKTOA AVE and does age affect safety?

W DAKTOA AVE was built in 2011, making it 15 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.