WILSON ROAD
Carrying WILSON ROAD over DUNES CREEK
00.00 DUNES STATE PARK, Porter, Indiana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
WILSON ROAD in Porter, Indiana sits above 9% of rated Indiana bridges on inventory load rating (23 t), while its 1934 build year is earlier than 84% of Porter's recorded-year cohort (277 bridges).
WILSON ROAD in Porter, Indiana is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1934, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 3. 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 IN:060160
PRE-1950 · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 8 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local 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: WILSON ROAD
The WILSON ROAD bridge in Porter, Indiana carries WILSON ROAD over DUNES CREEK. It was built in 1934, making it 92 years old today. It was last reconstructed in 1950, extending its service life. The structure is built primarily of concrete and spans 8 sections, stretching 48.8 meters (160 feet) end to end. Daily traffic averages 143 vehicles, placing it in the lower-traffic tier of Indiana bridges. It is owned and maintained by Other State Agencies.
The latest FHWA inspection records show a deck rating of 3/9, superstructure at 3/9, substructure 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 WILSON ROAD compares
Age against the county: built in 1934, earlier than 234 of Porter's 277 bridges with a recorded construction year (84%), against a county median build year of 1969. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Indiana bridges with a recorded inventory load rating (19,495 rated).
WILSON ROAD vs every rated Indiana bridge
Inventory load rating (metric tons), FHWA NBI, this state
23 Top 91% higher than 9% of 19,495 bridges
rated Indiana 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.
Porter inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 277 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
- 1934
- Last Reconstructed
- 1950
- Material
- Concrete
- Number of Spans
- 8
- Structure Length
- 48.8 m (160 ft)
- Deck Width
- 9.1 m (30 ft)
- Owner
- Other State Agencies
- Avg Daily Traffic
- 143 vehicles/day
- Structure Number
- 060160
Condition Analysis
- • The deck (driving surface) rates poor at 3/9, with advanced deterioration recorded on the latest inspection.
- • At 3/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear on file for this vintage.
- • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
WILSON ROAD 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 WILSON ROAD against other structures in Porter and across Indiana. Indiana 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 WILSON ROAD?
WILSON ROAD in Porter, Indiana has a deck rating of 3/9, superstructure rating of 3/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is WILSON ROAD inspected?
WILSON ROAD'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 143 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. WILSON ROAD 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 WILSON ROAD?
WILSON ROAD has an NBI inventory load rating of 23.0 metric tons.
Who is responsible for maintaining WILSON ROAD?
WILSON ROAD is owned and maintained by Other State Agencies.
How old is WILSON ROAD and does age affect safety?
WILSON ROAD was built in 1934, making it 92 years old and last reconstructed in 1950.
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.