EL PORTAL ROAD
Carrying EL PORTAL ROAD over LOWER CASCADE CREEK OVER
5.0 miles east from El Po, Mariposa, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: EL PORTAL ROAD
The EL PORTAL ROAD bridge in Mariposa, California carries EL PORTAL ROAD over LOWER CASCADE CREEK OVER. It was built in 2000, making it 26 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 7.8 meters (26 feet) end to end. Daily traffic averages 2,080 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 32.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How EL PORTAL ROAD 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 How the historical reference is calculated.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
- 2000
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 7.8 m (26 ft)
- Deck Width
- 13.0 m (43 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 2,080 vehicles/day
- Structure Number
- 8800012P0000000
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 EL PORTAL ROAD 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 EL PORTAL ROAD 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 EL PORTAL ROAD?
EL PORTAL ROAD in Mariposa, California on the FHWA's 0–9 scale.
How often is EL PORTAL ROAD inspected?
EL PORTAL ROAD'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 2,080 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. EL PORTAL ROAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for EL PORTAL ROAD?
EL PORTAL ROAD has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining EL PORTAL ROAD?
EL PORTAL ROAD is owned and maintained by National Park Service.
How old is EL PORTAL ROAD and does age affect safety?
EL PORTAL ROAD was built in 2000, making it 26 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.