MAPLE GROVE RD/TR2
Carrying MAPLE GROVE RD/TR2 over WENDALL BR
2.0 MI N TROY, Madison, Illinois
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
MAPLE GROVE RD/TR2 in Madison, Illinois sits above 88% of rated Illinois bridges on inventory load rating (46 t), while its 1978 build year is earlier than 56% of Madison's recorded-year cohort (523 bridges).
MAPLE GROVE RD/TR2 in Madison, Illinois is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1978, it carries 3 rated components 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:060322800000000
INTERSTATE-ERA · PRESTRESS · MULTI-SPAN · TIED-CTRL · ARTERIAL-ADT · HEAVY-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial ADT
- HEAVY-LOAD Heavy 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: MAPLE GROVE RD/TR2
The MAPLE GROVE RD/TR2 bridge in Madison, Illinois carries MAPLE GROVE RD/TR2 over WENDALL BR. It was built in 1978, making it 48 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 28.3 meters (93 feet) end to end. Daily traffic averages 1,050 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 6/9. 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 MAPLE GROVE RD/TR2 compares
Age against the county: built in 1978, earlier than 294 of Madison's 523 bridges with a recorded construction year (56%), against a county median build year of 1984. 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).
MAPLE GROVE RD/TR2 vs every rated Illinois bridge
Inventory load rating (metric tons), FHWA NBI, this state
46 Top 12% higher than 88% 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.
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.
Madison inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 523 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
- 1978
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 28.3 m (93 ft)
- Deck Width
- 9.3 m (31 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 1,050 vehicles/day
- Structure Number
- 060322800000000
Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear on file for this vintage.
- • At 4/9, 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) 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
MAPLE GROVE RD/TR2 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 MAPLE GROVE RD/TR2 against other structures in Madison 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 MAPLE GROVE RD/TR2?
MAPLE GROVE RD/TR2 in Madison, Illinois has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is MAPLE GROVE RD/TR2 inspected?
MAPLE GROVE RD/TR2'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 1,050 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MAPLE GROVE RD/TR2 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 MAPLE GROVE RD/TR2?
MAPLE GROVE RD/TR2 has an NBI inventory load rating of 46.0 metric tons.
Who is responsible for maintaining MAPLE GROVE RD/TR2?
MAPLE GROVE RD/TR2 is owned and maintained by Town/Township Highway Agency.
How old is MAPLE GROVE RD/TR2 and does age affect safety?
MAPLE GROVE RD/TR2 was built in 1978, making it 48 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.