HAMMATT AVE
Carrying HAMMATT AVE over STATE ROUTE 99
10-MER-099-R29.00-LVTN, Merced, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HAMMATT AVE
The HAMMATT AVE bridge in Merced, California carries HAMMATT AVE over STATE ROUTE 99. It was built in 1997, making it 29 years old today. The structure is built primarily of prestressed concrete continuous. Daily traffic averages 52,000 vehicles, placing it in the heavily-trafficked tier of California bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HAMMATT AVE 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 How the historical reference is calculated.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
- 1997
- Material
- Prestressed Concrete Continuous
- Avg Daily Traffic
- 52,000 vehicles/day
- Structure Number
- 39 0220
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 HAMMATT AVE 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 HAMMATT AVE against other structures in Merced 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 HAMMATT AVE?
HAMMATT AVE in Merced, California on the FHWA's 0–9 scale.
How often is HAMMATT AVE inspected?
HAMMATT AVE'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 52,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HAMMATT AVE is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for HAMMATT AVE?
An inventory load rating is not recorded for HAMMATT AVE.
Who is responsible for maintaining HAMMATT AVE?
Ownership is not specified for HAMMATT AVE in the NBI.
How old is HAMMATT AVE and does age affect safety?
HAMMATT AVE was built in 1997, making it 29 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.