ILLINOIS STREET
Carrying ILLINOIS STREET over ISLAIS CREEK
0.2 MI NORTH OF CARGO WAY, San Francisco, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ILLINOIS STREET
The ILLINOIS STREET bridge in San Francisco, California carries ILLINOIS STREET over ISLAIS CREEK. It was built in 2008, making it 18 years old today. The structure is built primarily of steel and spans 1 section, stretching 140.1 meters (460 feet) end to end. Daily traffic averages 2,000 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by Other Local Agencies.
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. All reported major components score above the Poor range. Its NBI inventory load rating is 34.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ILLINOIS STREET compares
Live comparison across California.
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 How the historical reference is calculated.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
- 2008
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 140.1 m (460 ft)
- Deck Width
- 11.5 m (38 ft)
- Owner
- Other Local Agencies
- Avg Daily Traffic
- 2,000 vehicles/day
- Structure Number
- 34C0076
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.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • 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 ILLINOIS STREET 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 ILLINOIS STREET against other structures in San Francisco and across California. California 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 ILLINOIS STREET?
ILLINOIS STREET in San Francisco, California 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 ILLINOIS STREET inspected?
ILLINOIS STREET'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 2,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ILLINOIS STREET 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 ILLINOIS STREET?
ILLINOIS STREET has an NBI inventory load rating of 34.0 metric tons.
Who is responsible for maintaining ILLINOIS STREET?
ILLINOIS STREET is owned and maintained by Other Local Agencies.
How old is ILLINOIS STREET and does age affect safety?
ILLINOIS STREET was built in 2008, making it 18 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.