FHWA NBI 2024 Inspection record Public-domain dataset

BUS BROWN DR

Carrying BUS BROWN DR over UNNAMED CREEK

East of Lincolnway, Harrison, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
37 t Inventory load rating

Bridge Snapshot: BUS BROWN DR

The BUS BROWN DR bridge in Harrison, Iowa carries BUS BROWN DR over UNNAMED CREEK. It was built in 2015, making it 11 years old today. The structure is built primarily of concrete and spans 1 section, stretching 9.6 meters (31 feet) end to end. Daily traffic averages 1,225 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 7/9, superstructure at 8/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 37.3 metric tons.

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

How BUS BROWN DR compares

▲ 6.4
Load rating vs Iowa average (30.9 t)
Top 23%
Higher load rating than 77% of Iowa bridges
162
Bridges in Harrison · 41 in Poor condition
BUS BROWN DR 37.3 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
94.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
25.0
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Inventory Load Rating
37.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
2015
Material
Concrete
Number of Spans
1
Structure Length
9.6 m (31 ft)
Deck Width
10.4 m (34 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,225 vehicles/day
Structure Number
000000000505350

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) rates good at 8/9, with no significant deterioration on file.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether BUS BROWN DR 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 BUS BROWN DR against other structures in Harrison 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 BUS BROWN DR?

BUS BROWN DR in Harrison, Iowa has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is BUS BROWN DR inspected?

BUS BROWN DR'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 1,225 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. BUS BROWN DR is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for BUS BROWN DR?

BUS BROWN DR has an NBI inventory load rating of 37.3 metric tons.

Who is responsible for maintaining BUS BROWN DR?

BUS BROWN DR is owned and maintained by City/Municipal Highway Agency.

How old is BUS BROWN DR and does age affect safety?

BUS BROWN DR was built in 2015, making it 11 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.