FHWA NBI 2024 Inspection record Public-domain dataset

H38 LAMBERT AVE

Carrying H38 LAMBERT AVE over NISHNABOTNA

072413501, Mills, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
54 t Inventory load rating

Bridge Snapshot: H38 LAMBERT AVE

The H38 LAMBERT AVE bridge in Mills, Iowa carries H38 LAMBERT AVE over NISHNABOTNA. It was built in 2012, making it 14 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 125.6 meters (412 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 a deck rating of 7/9, 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 53.5 metric tons.

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

How H38 LAMBERT AVE compares

▲ 22.6
Load rating vs Iowa average (30.9 t)
Top 4%
Higher load rating than 96% of Iowa bridges
170
Bridges in Mills · 35 in Poor condition
H38 LAMBERT AVE 53.5 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
99.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
53.5 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2012
Material
Prestressed Concrete
Number of Spans
3
Structure Length
125.6 m (412 ft)
Deck Width
10.1 m (33 ft)
Owner
County Highway Agency
Avg Daily Traffic
289 vehicles/day
Structure Number
000000000246001

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
  • 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 H38 LAMBERT 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 H38 LAMBERT AVE against other structures in Mills 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 H38 LAMBERT AVE?

H38 LAMBERT AVE in Mills, 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 H38 LAMBERT AVE inspected?

H38 LAMBERT 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 289 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. H38 LAMBERT 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 H38 LAMBERT AVE?

H38 LAMBERT AVE has an NBI inventory load rating of 53.5 metric tons.

Who is responsible for maintaining H38 LAMBERT AVE?

H38 LAMBERT AVE is owned and maintained by County Highway Agency.

How old is H38 LAMBERT AVE and does age affect safety?

H38 LAMBERT AVE was built in 2012, making it 14 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.