N14
Carrying N14 over MISSOURI RIVER
1.5NE NIOBRARA, Knox, Nebraska
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
N14 in Knox, Nebraska sits above 86% of rated Nebraska bridges on inventory load rating (40 t), while its 1996 build year is earlier than 29% of Knox's recorded-year cohort (329 bridges).
N14 in Knox, Nebraska is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1996, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure NE:S014 20330
LATE-CENTURY · STEEL · LONG-SPAN-RUN · SUB-LED · LOCAL-ADT · HEAVY-LOAD · CAT-POOR
- LATE-CENTURY 1980–1999
- STEEL Steel
- LONG-SPAN-RUN 16 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: N14
The N14 bridge in Knox, Nebraska carries N14 over MISSOURI RIVER. It was built in 1996, making it 30 years old today. The structure is built primarily of steel continuous and spans 16 sections, stretching 900.1 meters (2953 feet) end to end. Daily traffic averages 830 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 7/9, superstructure at 8/9, substructure at 4/9. 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.
How N14 compares
Age against the county: built in 1996, earlier than 94 of Knox's 329 bridges with a recorded construction year (29%), against a county median build year of 1984. This is one of the newer structures in its county.
Live comparison across Nebraska bridges with a recorded inventory load rating (15,392 of 15,398 rated).
N14 vs every rated Nebraska bridge
Inventory load rating (metric tons), FHWA NBI, this state
40 Top 14% higher than 86% of 15,392 bridges
rated Nebraska bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Knox inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 329 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1996
- Material
- Steel Continuous
- Number of Spans
- 16
- Structure Length
- 900.1 m (2953 ft)
- Deck Width
- 11.3 m (37 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 830 vehicles/day
- Structure Number
- S014 20330
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) is in good condition (8/9), showing no significant deterioration.
- • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
N14 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 N14 against other structures in Knox 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 N14?
N14 in Knox, Nebraska has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is N14 inspected?
N14'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 830 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N14 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 N14?
N14 has an NBI inventory load rating of 40.0 metric tons.
Who is responsible for maintaining N14?
N14 is owned and maintained by State Highway Agency.
How old is N14 and does age affect safety?
N14 was built in 1996, making it 30 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.