FHWA NBI 2024 Inspection record Public-domain dataset

LOCAL 305TH ST.

Carrying LOCAL 305TH ST. over LIME CR

087101303, Buchanan, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor

Bridge Snapshot: LOCAL 305TH ST.

The LOCAL 305TH ST. bridge in Buchanan, Iowa carries LOCAL 305TH ST. over LIME CR. It was built in 1910, making it 116 years old today. The structure is built primarily of steel and spans 1 section, stretching 24.7 meters (81 feet) end to end. Daily traffic averages 16 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 2/9, superstructure at 3/9, substructure at 4/9. The weakest component sits in critical condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

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

How LOCAL 305TH ST. compares

281
Bridges in Buchanan · 16 in Poor condition

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
0.0 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
0.0
Essentiality /15
0.0
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 How the historical reference is calculated.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
2/9
Poor (1–4)
Superstructure
3/9
Poor (1–4)
Substructure
4/9
Poor (1–4)
Overall Condition
Poor

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

Structural Details

Year Built
1910
Material
Steel
Number of Spans
1
Structure Length
24.7 m (81 ft)
Deck Width
4.8 m (16 ft)
Owner
County Highway Agency
Avg Daily Traffic
16 vehicles/day
Structure Number
000000000081560

Condition Analysis

  • The deck (driving surface) is in critical condition (2/9), with severe deterioration requiring urgent attention.
  • The superstructure (beams and supports above the deck) is in poor condition (3/9), showing advanced deterioration that may require priority repair.
  • 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 305TH 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 LOCAL 305TH ST. against other structures in Buchanan 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 305TH ST.?

LOCAL 305TH ST. in Buchanan, Iowa has a deck rating of 2/9, superstructure rating of 3/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is LOCAL 305TH ST. inspected?

LOCAL 305TH 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 16 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LOCAL 305TH 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 LOCAL 305TH ST.?

An inventory load rating is not recorded for LOCAL 305TH ST..

Who is responsible for maintaining LOCAL 305TH ST.?

LOCAL 305TH ST. is owned and maintained by County Highway Agency.

How old is LOCAL 305TH ST. and does age affect safety?

LOCAL 305TH ST. was built in 1910, making it 116 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.