4TH ST/MS 1020
Carrying 4TH ST/MS 1020 over SPILLING CREEK
PONTOOSUC, Hancock, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 4TH ST/MS 1020
The 4TH ST/MS 1020 bridge in Hancock, Illinois carries 4TH ST/MS 1020 over SPILLING CREEK. It was built in 1900, making it 126 years old today. It was last reconstructed in 1965, extending its service life. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 36.9 meters (121 feet) end to end. Daily traffic averages 150 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 2/9, superstructure at 2/9, substructure at 4/9. The weakest component sits in critical condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 4TH ST/MS 1020 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 How the historical reference is calculated.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
- 1900
- Last Reconstructed
- 1965
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 36.9 m (121 ft)
- Deck Width
- 4.9 m (16 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 150 vehicles/day
- Structure Number
- 034601200000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 2/9, the deck (driving surface) is in critical shape, with severe wear requiring urgent action.
- • At 2/9, the superstructure (beams and supports above the deck) is in critical shape, with severe wear requiring urgent action.
- • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
How to read this record
4TH ST/MS 1020 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 4TH ST/MS 1020 against other structures in Hancock 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 4TH ST/MS 1020?
4TH ST/MS 1020 in Hancock, Illinois has a deck rating of 2/9, superstructure rating of 2/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is 4TH ST/MS 1020 inspected?
4TH ST/MS 1020'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 150 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 4TH ST/MS 1020 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 4TH ST/MS 1020?
An inventory load rating is not recorded for 4TH ST/MS 1020.
Who is responsible for maintaining 4TH ST/MS 1020?
4TH ST/MS 1020 is owned and maintained by City/Municipal Highway Agency.
How old is 4TH ST/MS 1020 and does age affect safety?
4TH ST/MS 1020 was built in 1900, making it 126 years old and last reconstructed in 1965.
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.