STATE ROUTE 140
Carrying STATE ROUTE 140 over SWEETWATER CREEK
10-MPA-140-37.83, Mariposa, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STATE ROUTE 140
The STATE ROUTE 140 bridge in Mariposa, California carries STATE ROUTE 140 over SWEETWATER CREEK. It was built in 1926, making it 100 years old today. The structure is built primarily of concrete and spans 1 section, stretching 12.5 meters (41 feet) end to end. Daily traffic averages 1,400 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show superstructure at 4/9, substructure at 7/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 31.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How STATE ROUTE 140 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 How the historical reference is calculated.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
- 1926
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 12.5 m (41 ft)
- Deck Width
- 8.8 m (29 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 1,400 vehicles/day
- Structure Number
- 40 0007
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
STATE ROUTE 140 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 STATE ROUTE 140 against other structures in Mariposa 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 STATE ROUTE 140?
STATE ROUTE 140 in Mariposa, California, superstructure rating of 4/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is STATE ROUTE 140 inspected?
STATE ROUTE 140'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 1,400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STATE ROUTE 140 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 STATE ROUTE 140?
STATE ROUTE 140 has an NBI inventory load rating of 31.8 metric tons.
Who is responsible for maintaining STATE ROUTE 140?
STATE ROUTE 140 is owned and maintained by State Highway Agency.
How old is STATE ROUTE 140 and does age affect safety?
STATE ROUTE 140 was built in 1926, making it 100 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.