TR-31 (River Road)
Carrying TR-31 (River Road) over Meridosia Ditch
AT R I CO LINE, Whiteside, Illinois
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
TR-31 (River Road) in Whiteside, Illinois sits above 8% of rated Illinois bridges on inventory load rating (23 t), while its 1901 build year is earlier than 100% of Whiteside's recorded-year cohort (278 bridges).
TR-31 (River Road) in Whiteside, Illinois is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1901, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. 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 IL:098995000000000
PRE-1950 · CONCRETE · LONG-SPAN-RUN · CULVERT-LED · ADT-UNK · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 4 spans
- CULVERT-LED Culvert-led
- ADT-UNK ADT unknown
- 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: TR-31 (River Road)
The TR-31 (River Road) bridge in Whiteside, Illinois carries TR-31 (River Road) over Meridosia Ditch. It was built in 1901, making it 125 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 8.2 meters (27 feet) end to end. Average daily traffic is not reported for this structure. It is owned and maintained by Private.
The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order.
How TR-31 (River Road) compares
Age against the county: built in 1901, earlier than 277 of Whiteside's 278 bridges with a recorded construction year (100%), against a county median build year of 1975. 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).
TR-31 (River Road) vs every rated Illinois bridge
Inventory load rating (metric tons), FHWA NBI, this state
23 Top 92% higher than 8% 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.
Whiteside inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 278 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
- 1901
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 8.2 m (27 ft) 0
- Owner
- Private
- Structure Number
- 098995000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
TR-31 (River 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 TR-31 (River Road) against other structures in Whiteside 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 TR-31 (River Road)?
TR-31 (River Road) in Whiteside, Illinois on the FHWA's 0–9 scale.
How often is TR-31 (River Road) inspected?
TR-31 (River Road)'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. TR-31 (River 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 TR-31 (River Road)?
TR-31 (River Road) has an NBI inventory load rating of 22.7 metric tons.
Who is responsible for maintaining TR-31 (River Road)?
TR-31 (River Road) is owned and maintained by Private.
How old is TR-31 (River Road) and does age affect safety?
TR-31 (River Road) was built in 1901, making it 125 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.