I - 459 NORTH
Carrying I - 459 NORTH over CAHABA RIVER
I459 * CAHABA RIVER, Jefferson, Alabama
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
I - 459 NORTH in Jefferson, Alabama is rated Fair in the FHWA's 2024 National Bridge Inventory.
Built in 1981, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. 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 AL:012498
LATE-CENTURY · STEEL · LONG-SPAN-RUN · TIED-CTRL · HEAVY-ADT · STANDARD-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- STEEL Steel
- LONG-SPAN-RUN 4 spans
- TIED-CTRL Tied control
- HEAVY-ADT Heavy 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: I - 459 NORTH
The I - 459 NORTH bridge in Jefferson, Alabama carries I - 459 NORTH over CAHABA RIVER. It was built in 1981, making it 45 years old today. The structure is built primarily of steel continuous and spans 4 sections, stretching 211.5 meters (694 feet) end to end. Daily traffic averages 40,005 vehicles, placing it in the heavily-trafficked tier of Alabama bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How I - 459 NORTH compares
Age against the county: built in 1981, earlier than 331 of Jefferson's 1,068 bridges with a recorded construction year (31%), against a county median build year of 1974. This is one of the newer structures in its county.
Live comparison across Alabama bridges with a recorded inventory load rating (16,191 of 16,205 rated).
I - 459 NORTH vs every rated Alabama bridge
Inventory load rating (metric tons), FHWA NBI, this state
29 Top 67% higher than 33% of 16,191 bridges
rated Alabama 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.
Jefferson inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 1,068 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
- 1981
- Material
- Steel Continuous
- Number of Spans
- 4
- Structure Length
- 211.5 m (694 ft)
- Deck Width
- 17.9 m (59 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 40,005 vehicles/day
- Structure Number
- 012498
Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • 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) rates fair at 6/9, minor deterioration that routine maintenance should address.
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 I - 459 NORTH 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 I - 459 NORTH against other structures in Jefferson and across Alabama. Alabama 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 I - 459 NORTH?
I - 459 NORTH in Jefferson, Alabama has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is I - 459 NORTH inspected?
I - 459 NORTH'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 40,005 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I - 459 NORTH 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 I - 459 NORTH?
I - 459 NORTH has an NBI inventory load rating of 28.5 metric tons.
Who is responsible for maintaining I - 459 NORTH?
I - 459 NORTH is owned and maintained by State Highway Agency.
How old is I - 459 NORTH and does age affect safety?
I - 459 NORTH was built in 1981, making it 45 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.