N 18TH ST
Carrying N 18TH ST over PORT ARTHUR FR WTR CANAL
100 FT W OF SPURLOCK RD, Jefferson, Texas
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
N 18TH ST in Jefferson, Texas sits above 24% of rated Texas bridges on inventory load rating (25 t), while its 1975 build year is earlier than 44% of Jefferson's recorded-year cohort (457 bridges).
N 18TH ST in Jefferson, Texas is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1975, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair 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 TX:201240AA0353001
INTERSTATE-ERA · CONCRETE · LONG-SPAN-RUN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- LONG-SPAN-RUN 4 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
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: N 18TH ST
The N 18TH ST bridge in Jefferson, Texas carries N 18TH ST over PORT ARTHUR FR WTR CANAL. It was built in 1975, making it 51 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 12.2 meters (40 feet) end to end. Daily traffic averages 388 vehicles, placing it in the lower-traffic tier of Texas bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show culvert at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How N 18TH ST compares
Age against the county: built in 1975, earlier than 200 of Jefferson's 457 bridges with a recorded construction year (44%), against a county median build year of 1971. This is one of the newer structures in its county.
Live comparison across Texas bridges with a recorded inventory load rating (56,715 of 56,729 rated).
N 18TH ST vs every rated Texas bridge
Inventory load rating (metric tons), FHWA NBI, this state
25 Top 76% higher than 24% of 56,715 bridges
rated Texas 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.
Jefferson inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 457 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
- 1975
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 12.2 m (40 ft)
- Deck Width
- 8.5 m (28 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 388 vehicles/day
- Structure Number
- 201240AA0353001
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether N 18TH ST 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 N 18TH ST against other structures in Jefferson and across Texas. Texas 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 N 18TH ST?
N 18TH ST in Jefferson, Texas on the FHWA's 0–9 scale.
How often is N 18TH ST inspected?
N 18TH ST'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 388 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N 18TH ST is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for N 18TH ST?
N 18TH ST has an NBI inventory load rating of 24.5 metric tons.
Who is responsible for maintaining N 18TH ST?
N 18TH ST is owned and maintained by County Highway Agency.
How old is N 18TH ST and does age affect safety?
N 18TH ST was built in 1975, making it 51 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.