N4
Carrying N4 over CUB CREEK
4W BEATRICE, Gage, Nebraska
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: N4
The N4 bridge in Gage, Nebraska carries N4 over CUB CREEK. It was built in 1953, making it 73 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 55.2 meters (181 feet) end to end. Daily traffic averages 1,880 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 a deck rating of 4/9, superstructure at 6/9, substructure at 6/9. 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 23.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How N4 compares
Live comparison across Nebraska.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1953
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 55.2 m (181 ft)
- Deck Width
- 9.9 m (32 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,880 vehicles/day
- Structure Number
- S004 15219
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
N4 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 N4 against other structures in Gage 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 N4?
N4 in Gage, Nebraska has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is N4 inspected?
N4'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 1,880 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N4 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 N4?
N4 has an NBI inventory load rating of 23.0 metric tons.
Who is responsible for maintaining N4?
N4 is owned and maintained by State Highway Agency.
How old is N4 and does age affect safety?
N4 was built in 1953, making it 73 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.
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.