FHWA NBI 2024 Inspection record Public-domain dataset

N32

Carrying N32 over NORTH SHELL CREEK

12E PETERSBURG, Boone, Nebraska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
33 t Inventory load rating

Bridge Snapshot: N32

The N32 bridge in Boone, Nebraska carries N32 over NORTH SHELL CREEK. It was built in 1973, making it 53 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 29.0 meters (95 feet) end to end. Daily traffic averages 455 vehicles, placing it in the lower-traffic tier of Nebraska bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 33.0 metric tons.

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

How N32 compares

▲ 5.3
Load rating vs Nebraska average (27.7 t)
Top 39%
Higher load rating than 61% of Nebraska bridges
237
Bridges in Boone · 9 in Poor condition
N32 33.0 t
Nebraska average 27.7 t

Live comparison across Nebraska.

Historical Sufficiency Rating

PlainBridge-computed
68.3 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
25.0
Essentiality /15
13.4
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
33.0 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1973
Material
Concrete Continuous
Number of Spans
3
Structure Length
29.0 m (95 ft)
Deck Width
11.9 m (39 ft)
Owner
State Highway Agency
Avg Daily Traffic
455 vehicles/day
Structure Number
S032 01178

Condition Analysis

  • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

N32 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 N32 against other structures in Boone and across Nebraska. Nebraska 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 N32?

N32 in Boone, Nebraska has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is N32 inspected?

N32'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 455 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. N32 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 N32?

N32 has an NBI inventory load rating of 33.0 metric tons.

Who is responsible for maintaining N32?

N32 is owned and maintained by State Highway Agency.

How old is N32 and does age affect safety?

N32 was built in 1973, making it 53 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.