FHWA NBI 2024 Inspection record Public-domain dataset

LCL-380TH ST

Carrying LCL-380TH ST over DEER CREEK

071400904, Mills, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
13 t Inventory load rating

Bridge Snapshot: LCL-380TH ST

The LCL-380TH ST bridge in Mills, Iowa carries LCL-380TH ST over DEER CREEK. It was built in 1977, making it 49 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 5 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 6/9, superstructure at 6/9, substructure at 3/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 12.6 metric tons.

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

How LCL-380TH ST compares

▼ 18.3
Load rating vs Iowa average (30.9 t)
Bottom 5%
Lower load rating than 95% of Iowa bridges
170
Bridges in Mills · 35 in Poor condition
LCL-380TH ST 12.6 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
36.0 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
21.0
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
12.6 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1977
Material
Wood or Timber
Number of Spans
1
Structure Length
8.5 m (28 ft)
Deck Width
8.1 m (27 ft)
Owner
County Highway Agency
Avg Daily Traffic
5 vehicles/day
Structure Number
000000000244661

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates poor at 3/9, advanced deterioration that should be prioritized for repair.

How to read this record

LCL-380TH ST is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare LCL-380TH ST 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 LCL-380TH ST?

LCL-380TH ST in Mills, Iowa has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is LCL-380TH ST inspected?

LCL-380TH ST'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 5 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LCL-380TH ST is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for LCL-380TH ST?

LCL-380TH ST has an NBI inventory load rating of 12.6 metric tons.

Who is responsible for maintaining LCL-380TH ST?

LCL-380TH ST is owned and maintained by County Highway Agency.

How old is LCL-380TH ST and does age affect safety?

LCL-380TH ST was built in 1977, making it 49 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.