OLD HWY 20
Carrying OLD HWY 20 over LIMESTONE CRK SLOUGH
_SEC10 T4S R3W, Limestone, Alabama
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
OLD HWY 20 in Limestone, Alabama sits above 89% of rated Alabama bridges on inventory load rating (63 t), while its 2020 build year is earlier than 3% of Limestone's recorded-year cohort (324 bridges).
OLD HWY 20 in Limestone, Alabama is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2020, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. The lowest applicable rating sets the federal condition category, so this Good 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:021422
POST-2000 · PRESTRESS · SINGLE-SPAN · TIED-CTRL · ARTERIAL-ADT · HEAVY-LOAD · CAT-GOOD
- POST-2000 2000+
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: OLD HWY 20
The OLD HWY 20 bridge in Limestone, Alabama carries OLD HWY 20 over LIMESTONE CRK SLOUGH. It was built in 2020, making it 6 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 54.9 meters (180 feet) end to end. Daily traffic averages 2,230 vehicles, placing it in the moderately-trafficked tier of Alabama bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 9/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How OLD HWY 20 compares
Age against the county: built in 2020, earlier than 10 of Limestone's 324 bridges with a recorded construction year (3%), against a county median build year of 1965. 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).
OLD HWY 20 vs every rated Alabama bridge
Inventory load rating (metric tons), FHWA NBI, this state
63 Top 11% higher than 89% 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.
Limestone inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 324 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
- 2020
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 54.9 m (180 ft)
- Deck Width
- 12.9 m (42 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 2,230 vehicles/day
- Structure Number
- 021422
Condition Analysis
- • The deck (driving surface) rates good at 8/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) is in good condition (9/9), showing no significant deterioration.
- • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.
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 OLD HWY 20 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 OLD HWY 20 against other structures in Limestone 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 OLD HWY 20?
OLD HWY 20 in Limestone, Alabama has a deck rating of 8/9, superstructure rating of 9/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is OLD HWY 20 inspected?
OLD HWY 20'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 2,230 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD HWY 20 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for OLD HWY 20?
OLD HWY 20 has an NBI inventory load rating of 62.7 metric tons.
Who is responsible for maintaining OLD HWY 20?
OLD HWY 20 is owned and maintained by County Highway Agency.
How old is OLD HWY 20 and does age affect safety?
OLD HWY 20 was built in 2020, making it 6 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.