LOUISA RD
Carrying LOUISA RD over BR OF WADDAMS CREEK
0.7 MI W ILL RT 73, Stephenson, Illinois
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
LOUISA RD in Stephenson, Illinois sits above 3% of rated Illinois bridges on inventory load rating (17 t), while its 1966 build year is earlier than 68% of Stephenson's recorded-year cohort (342 bridges).
LOUISA RD in Stephenson, Illinois is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1966, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. 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 IL:089504800000000
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · ADT-UNK · LIGHT-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- ADT-UNK ADT unknown
- LIGHT-LOAD Light 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: LOUISA RD
The LOUISA RD bridge in Stephenson, Illinois carries LOUISA RD over BR OF WADDAMS CREEK. It was built in 1966, making it 60 years old today. It was last reconstructed in 2007, extending its service life. The structure is built primarily of concrete continuous and spans 2 sections, stretching 6.7 meters (22 feet) end to end. Average daily traffic is not reported for this structure. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How LOUISA RD compares
Age against the county: built in 1966, earlier than 234 of Stephenson's 342 bridges with a recorded construction year (68%), against a county median build year of 1981. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Illinois bridges with a recorded inventory load rating (26,904 of 26,928 rated).
LOUISA RD vs every rated Illinois bridge
Inventory load rating (metric tons), FHWA NBI, this state
17 Top 97% higher than 3% of 26,904 bridges
rated Illinois 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.
Stephenson inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 342 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
- 1966
- Last Reconstructed
- 2007
- Material
- Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 6.7 m (22 ft) 0
- Owner
- Town/Township Highway Agency
- Structure Number
- 089504800000000
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 LOUISA RD 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 LOUISA RD against other structures in Stephenson and across Illinois. Illinois 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 LOUISA RD?
LOUISA RD in Stephenson, Illinois on the FHWA's 0–9 scale.
How often is LOUISA RD inspected?
LOUISA RD's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LOUISA RD 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 LOUISA RD?
LOUISA RD has an NBI inventory load rating of 16.8 metric tons.
Who is responsible for maintaining LOUISA RD?
LOUISA RD is owned and maintained by Town/Township Highway Agency.
How old is LOUISA RD and does age affect safety?
LOUISA RD was built in 1966, making it 60 years old and last reconstructed in 2007.
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.