INTERSTATE 680 SB
Carrying INTERSTATE 680 SB over E WARREN AVE
04-ALA-680-M1.96-FMT, Alameda, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: INTERSTATE 680 SB
The INTERSTATE 680 SB bridge in Alameda, California carries INTERSTATE 680 SB over E WARREN AVE. It was built in 1971, making it 55 years old today. It was last reconstructed in 2010, extending its service life. The structure is built primarily of prestressed concrete continuous and spans 2 sections, stretching 66.7 meters (219 feet) end to end. Daily traffic averages 61,000 vehicles, placing it in the heavily-trafficked tier of California bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in poor condition. 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. Its NBI inventory load rating is 32.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How INTERSTATE 680 SB 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 How the historical reference is calculated.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
- 1971
- Last Reconstructed
- 2010
- Material
- Prestressed Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 66.7 m (219 ft)
- Deck Width
- 25.5 m (84 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 61,000 vehicles/day
- Structure Number
- 33 0427L
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
INTERSTATE 680 SB 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 INTERSTATE 680 SB against other structures in Alameda 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 INTERSTATE 680 SB?
INTERSTATE 680 SB in Alameda, California has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is INTERSTATE 680 SB inspected?
INTERSTATE 680 SB'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 61,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. INTERSTATE 680 SB 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 INTERSTATE 680 SB?
INTERSTATE 680 SB has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining INTERSTATE 680 SB?
INTERSTATE 680 SB is owned and maintained by State Highway Agency.
How old is INTERSTATE 680 SB and does age affect safety?
INTERSTATE 680 SB was built in 1971, making it 55 years old and last reconstructed in 2010.
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.