LOWER SACTO RD
Carrying LOWER SACTO RD over MOSHER SLOUGH
N. OF MACDUFF AVE, San Joaquin, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: LOWER SACTO RD
The LOWER SACTO RD bridge in San Joaquin, California carries LOWER SACTO RD over MOSHER SLOUGH. It was built in 1972, making it 54 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 20.1 meters (66 feet) end to end. Daily traffic averages 19,600 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 a deck rating of 4/9, superstructure at 4/9, substructure at 6/9. 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 25.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How LOWER SACTO RD 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 How the historical reference is calculated.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
- 1972
- Material
- Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 20.1 m (66 ft)
- Deck Width
- 32.3 m (106 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 19,600 vehicles/day
- Structure Number
- 29C0134
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
LOWER SACTO RD 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 LOWER SACTO RD against other structures in San Joaquin 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 LOWER SACTO RD?
LOWER SACTO RD in San Joaquin, California has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is LOWER SACTO RD inspected?
LOWER SACTO RD'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 19,600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LOWER SACTO RD 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 LOWER SACTO RD?
LOWER SACTO RD has an NBI inventory load rating of 25.6 metric tons.
Who is responsible for maintaining LOWER SACTO RD?
LOWER SACTO RD is owned and maintained by City/Municipal Highway Agency.
How old is LOWER SACTO RD and does age affect safety?
LOWER SACTO RD was built in 1972, making it 54 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.