ROAD DISTRICT 186
Carrying ROAD DISTRICT 186 over COOLING CANAL
4.0 MI N CORDOVA, Rock Island, Illinois
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
ROAD DISTRICT 186 in Rock Island, Illinois sits above 15% of rated Illinois bridges on inventory load rating (27 t), while its 1973 build year is earlier than 70% of Rock Island's recorded-year cohort (272 bridges).
ROAD DISTRICT 186 in Rock Island, Illinois is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1973, 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 IL:081307700000000
INTERSTATE-ERA · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- LONG-SPAN-RUN 6 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.
Structural health score
A composite of the deck, superstructure, and substructure NBI condition ratings plus the inventory load rating, benchmarked against the full national bridge corpus, distinct from the Good/Fair/Poor category above.
Bridge Snapshot: ROAD DISTRICT 186
The ROAD DISTRICT 186 bridge in Rock Island, Illinois carries ROAD DISTRICT 186 over COOLING CANAL. It was built in 1973, making it 53 years old today. The structure is built primarily of concrete and spans 6 sections, stretching 69.5 meters (228 feet) end to end. Daily traffic averages 250 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection places the weakest component in poor condition (see the full component ratings below). 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 ROAD DISTRICT 186 compares
Age against the county: built in 1973, earlier than 190 of Rock Island's 272 bridges with a recorded construction year (70%), 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).
ROAD DISTRICT 186 vs every rated Illinois bridge
Inventory load rating (metric tons), FHWA NBI, this state
27 Top 85% higher than 15% 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.
Rock Island inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 272 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
- 1973
- Material
- Concrete
- Number of Spans
- 6
- Structure Length
- 69.5 m (228 ft)
- Deck Width
- 9.1 m (30 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 250 vehicles/day
- Structure Number
- 081307700000000
Condition Analysis
- • The deck (driving surface) is in poor condition (3/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
- • The superstructure (beams and supports above the deck) is in poor condition (3/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
ROAD DISTRICT 186 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 ROAD DISTRICT 186 against other structures in Rock Island 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 ROAD DISTRICT 186?
ROAD DISTRICT 186 in Rock Island, Illinois has a deck rating of 3/9, superstructure rating of 3/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is ROAD DISTRICT 186 inspected?
ROAD DISTRICT 186'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 250 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ROAD DISTRICT 186 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 ROAD DISTRICT 186?
ROAD DISTRICT 186 has an NBI inventory load rating of 26.6 metric tons.
Who is responsible for maintaining ROAD DISTRICT 186?
ROAD DISTRICT 186 is owned and maintained by Town/Township Highway Agency.
How old is ROAD DISTRICT 186 and does age affect safety?
ROAD DISTRICT 186 was built in 1973, making it 53 years old.
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.