FHWA NBI 2024 Inspection record Public-domain dataset

LOCAL/730TH LN

Carrying LOCAL/730TH LN over WATERWAY

077340504, Cass, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
40 t Inventory load rating

Bridge Snapshot: LOCAL/730TH LN

The LOCAL/730TH LN bridge in Cass, Iowa carries LOCAL/730TH LN over WATERWAY. It was built in 1995, making it 31 years old today. The structure is built primarily of steel continuous and spans 2 sections, stretching 15.2 meters (50 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 7/9, superstructure at 7/9, substructure at 4/9. 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 39.7 metric tons.

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

How LOCAL/730TH LN compares

▲ 8.8
Load rating vs Iowa average (30.9 t)
Top 18%
Higher load rating than 82% of Iowa bridges
237
Bridges in Cass · 94 in Poor condition
LOCAL/730TH LN 39.7 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
67.0 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
25.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
39.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1995
Material
Steel Continuous
Number of Spans
2
Structure Length
15.2 m (50 ft)
Deck Width
6.9 m (23 ft)
Owner
County Highway Agency
Avg Daily Traffic
5 vehicles/day
Structure Number
000000000100211

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration that may require priority repair.

How to read this record

LOCAL/730TH LN 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 LOCAL/730TH LN against other structures in Cass 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 LOCAL/730TH LN?

LOCAL/730TH LN in Cass, Iowa has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is LOCAL/730TH LN inspected?

LOCAL/730TH LN'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. LOCAL/730TH LN 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 LOCAL/730TH LN?

LOCAL/730TH LN has an NBI inventory load rating of 39.7 metric tons.

Who is responsible for maintaining LOCAL/730TH LN?

LOCAL/730TH LN is owned and maintained by County Highway Agency.

How old is LOCAL/730TH LN and does age affect safety?

LOCAL/730TH LN was built in 1995, making it 31 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.