SBI 13 (UNMARKED)
Carrying SBI 13 (UNMARKED) over CYPRESS DITCH
0.1 MI N OF JUNCTION, Gallatin, Illinois
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SBI 13 (UNMARKED) in Gallatin, Illinois sits above 14% of rated Illinois bridges on inventory load rating (26 t), while its 1940 build year is earlier than 91% of Gallatin's recorded-year cohort (82 bridges).
SBI 13 (UNMARKED) in Gallatin, Illinois is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1940, 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:030001400000000
PRE-1950 · STEEL · MULTI-SPAN · TIED-CTRL · TRACE-ADT · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- STEEL Steel
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- TRACE-ADT Trace 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.
Bridge Snapshot: SBI 13 (UNMARKED)
The SBI 13 (UNMARKED) bridge in Gallatin, Illinois carries SBI 13 (UNMARKED) over CYPRESS DITCH. It was built in 1940, making it 86 years old today. It was last reconstructed in 1964, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 32.5 meters (107 feet) end to end. Daily traffic averages 10 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 3/9, superstructure at 3/9, substructure at 6/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.
How SBI 13 (UNMARKED) compares
Age against the county: built in 1940, earlier than 75 of Gallatin's 82 bridges with a recorded construction year (91%), against a county median build year of 1991. 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).
SBI 13 (UNMARKED) vs every rated Illinois bridge
Inventory load rating (metric tons), FHWA NBI, this state
26 Top 86% higher than 14% 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.
Gallatin inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 82 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
- 1940
- Last Reconstructed
- 1964
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 32.5 m (107 ft)
- Deck Width
- 9.3 m (31 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 10 vehicles/day
- Structure Number
- 030001400000000
Condition Analysis
- • At 3/9, the deck (driving surface) is in poor shape, with advanced wear on file for this vintage.
- • At 3/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear on file for this vintage.
- • 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
SBI 13 (UNMARKED) 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 SBI 13 (UNMARKED) against other structures in Gallatin 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 SBI 13 (UNMARKED)?
SBI 13 (UNMARKED) in Gallatin, 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 SBI 13 (UNMARKED) inspected?
SBI 13 (UNMARKED)'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 10 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SBI 13 (UNMARKED) 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 SBI 13 (UNMARKED)?
SBI 13 (UNMARKED) has an NBI inventory load rating of 25.9 metric tons.
Who is responsible for maintaining SBI 13 (UNMARKED)?
SBI 13 (UNMARKED) is owned and maintained by State Highway Agency.
How old is SBI 13 (UNMARKED) and does age affect safety?
SBI 13 (UNMARKED) was built in 1940, making it 86 years old and last reconstructed in 1964.
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.