FHWA NBI 2024 Inspection record Public-domain dataset

N91

Carrying N91 over STREAM

5W HUMPHREY, Platte, Nebraska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
22 t Inventory load rating

Bridge Snapshot: N91

The N91 bridge in Platte, Nebraska carries N91 over STREAM. It was built in 1952, making it 74 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 10.1 meters (33 feet) end to end. Daily traffic averages 2,855 vehicles, placing it in the moderately-trafficked tier of Nebraska bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 22.0 metric tons.

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

How N91 compares

▼ 5.7
Load rating vs Nebraska average (27.7 t)
Bottom 22%
Lower load rating than 78% of Nebraska bridges
434
Bridges in Platte · 21 in Poor condition
N91 22.0 t
Nebraska average 27.7 t

Live comparison across Nebraska.

Historical Sufficiency Rating

PlainBridge-computed
77.3 / 100 - historical 50–79.9 band
Structural adequacy /55
44.1
Serviceability /30
29.0
Essentiality /15
7.2
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 How the historical reference is calculated.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

Culvert
7/9
Good (7–9)
Inventory Load Rating
22.0 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1952
Material
Concrete
Number of Spans
3
Structure Length
10.1 m (33 ft)
Owner
State Highway Agency
Avg Daily Traffic
2,855 vehicles/day
Structure Number
S091 14788

How to read this record

This page shows what the last federal inspection recorded, not whether N91 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 N91 against other structures in Platte 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 N91?

N91 in Platte, Nebraska on the FHWA's 0–9 scale.

How often is N91 inspected?

N91'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 2,855 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. N91 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for N91?

N91 has an NBI inventory load rating of 22.0 metric tons.

Who is responsible for maintaining N91?

N91 is owned and maintained by State Highway Agency.

How old is N91 and does age affect safety?

N91 was built in 1952, making it 74 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.