FHWA NBI 2024 Inspection record Public-domain dataset

EL PORTAL ROAD

Carrying EL PORTAL ROAD over WILDCAT CREEK

4.9 miles east from El Po, Mariposa, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
69 t Inventory load rating

Bridge Snapshot: EL PORTAL ROAD

The EL PORTAL ROAD bridge in Mariposa, California carries EL PORTAL ROAD over WILDCAT CREEK. It was built in 1985, making it 41 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 6.1 meters (20 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 68.9 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How EL PORTAL ROAD compares

▲ 37.6
Load rating vs California average (31.3 t)
Top 1%
Higher load rating than 99% of California bridges
109
Bridges in Mariposa · 12 in Poor condition
EL PORTAL ROAD 68.9 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
88.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
7.2
Special reductions
−3.3

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
68.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1985
Material
Concrete Continuous
Number of Spans
2
Structure Length
6.1 m (20 ft)
Owner
National Park Service
Avg Daily Traffic
2,080 vehicles/day
Structure Number
8800011P0000000

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 68.9 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 1985, making it 41 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.