CH 13/S MARKET ST
Carrying CH 13/S MARKET ST over CRAB ORCHARD CR
AT SCL MARION, Williamson, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: CH 13/S MARKET ST
The CH 13/S MARKET ST bridge in Williamson, Illinois carries CH 13/S MARKET ST over CRAB ORCHARD CR. It was built in 1986, making it 40 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 43.9 meters (144 feet) end to end. Daily traffic averages 3,550 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 33.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How CH 13/S MARKET ST compares
Live comparison across Illinois.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1986
- Material
- Prestressed Concrete
- Number of Spans
- 2
- Structure Length
- 43.9 m (144 ft)
- Deck Width
- 9.9 m (32 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 3,550 vehicles/day
- Structure Number
- 100313600000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
This page shows what the last federal inspection recorded, not whether CH 13/S MARKET ST 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 CH 13/S MARKET ST against other structures in Williamson 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 CH 13/S MARKET ST?
CH 13/S MARKET ST in Williamson, Illinois has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is CH 13/S MARKET ST inspected?
CH 13/S MARKET ST'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 3,550 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CH 13/S MARKET ST is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for CH 13/S MARKET ST?
CH 13/S MARKET ST has an NBI inventory load rating of 33.0 metric tons.
Who is responsible for maintaining CH 13/S MARKET ST?
CH 13/S MARKET ST is owned and maintained by County Highway Agency.
How old is CH 13/S MARKET ST and does age affect safety?
CH 13/S MARKET ST was built in 1986, making it 40 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.