HESPERIAN BLVD
Carrying HESPERIAN BLVD over ORA LOMA DITCH
THORNALLY ST, Alameda, California
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
HESPERIAN BLVD in Alameda, California sits above 16% of rated California bridges on inventory load rating (24 t), while its 1951 build year is earlier than 89% of Alameda's recorded-year cohort (658 bridges).
HESPERIAN BLVD in Alameda, California is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1951, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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 CA:33C0098
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · HEAVY-ADT · STANDARD-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
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: HESPERIAN BLVD
The HESPERIAN BLVD bridge in Alameda, California carries HESPERIAN BLVD over ORA LOMA DITCH. It was built in 1951, making it 75 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 29,800 vehicles, placing it in the heavily-trafficked tier of California bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How HESPERIAN BLVD compares
Age against the county: built in 1951, earlier than 588 of Alameda's 658 bridges with a recorded construction year (89%), against a county median build year of 1970. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across California bridges with a recorded inventory load rating (25,538 of 25,848 rated).
HESPERIAN BLVD vs every rated California bridge
Inventory load rating (metric tons), FHWA NBI, this state
24 Top 84% higher than 16% of 25,538 bridges
rated California 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.
Alameda inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 658 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
- 1951
- Material
- Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 8.5 m (28 ft)
- Deck Width
- 34.1 m (112 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 29,800 vehicles/day
- Structure Number
- 33C0098
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether HESPERIAN BLVD 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 HESPERIAN BLVD 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 HESPERIAN BLVD?
HESPERIAN BLVD in Alameda, California on the FHWA's 0–9 scale.
How often is HESPERIAN BLVD inspected?
HESPERIAN BLVD'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 29,800 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HESPERIAN BLVD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for HESPERIAN BLVD?
HESPERIAN BLVD has an NBI inventory load rating of 24.3 metric tons.
Who is responsible for maintaining HESPERIAN BLVD?
HESPERIAN BLVD is owned and maintained by City/Municipal Highway Agency.
How old is HESPERIAN BLVD and does age affect safety?
HESPERIAN BLVD was built in 1951, making it 75 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.
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.