SR1578
Carrying SR1578 over BRIERY RUN
1.4 MI N JCT NC58, Lenoir, North Carolina
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SR1578 in Lenoir, North Carolina sits above 22% of rated North Carolina bridges on inventory load rating (33 t), while its 1960 build year is earlier than 86% of Lenoir's recorded-year cohort (145 bridges).
SR1578 in Lenoir, North Carolina is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1960, it carries 1 rated component 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 NC:000000001070168
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard 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: SR1578
The SR1578 bridge in Lenoir, North Carolina carries SR1578 over BRIERY RUN. It was built in 1960, making it 66 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 1,800 vehicles, placing it in the moderately-trafficked tier of North Carolina bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert 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 SR1578 compares
Age against the county: built in 1960, earlier than 125 of Lenoir's 145 bridges with a recorded construction year (86%), against a county median build year of 2002. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across North Carolina bridges with a recorded inventory load rating (19,160 of 19,210 rated).
SR1578 vs every rated North Carolina bridge
Inventory load rating (metric tons), FHWA NBI, this state
33 Top 78% higher than 22% of 19,160 bridges
rated North Carolina 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.
Lenoir inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 145 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
- 1960
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 8.5 m (28 ft) 0
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,800 vehicles/day
- Structure Number
- 000000001070168
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
SR1578 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 SR1578 against other structures in Lenoir and across North Carolina. North Carolina 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 SR1578?
SR1578 in Lenoir, North Carolina on the FHWA's 0–9 scale.
How often is SR1578 inspected?
SR1578'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 1,800 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SR1578 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 SR1578?
SR1578 has an NBI inventory load rating of 32.6 metric tons.
Who is responsible for maintaining SR1578?
SR1578 is owned and maintained by State Highway Agency.
How old is SR1578 and does age affect safety?
SR1578 was built in 1960, making it 66 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.