Where do crashes happen most often on SR-73?

The short answer: From July 2, 2025 through July 1, 2026, the SR-73 corridor recorded 163 matching crash records. Among the locations identified in those records, Costa Mesa had the highest number of records with 65 matches. This is a count of records, not an exposure-adjusted measure of danger. View the reproducible table or read the methodology and limitations.

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Corridor Heat Map

SR-73 crash-record density

Adjust the window from the profile start date. The map redraws to show only loaded mappable records inside that date range.

0
Plotted records in window
Profile starts Jul 2, 2025Showing Jul 2, 2025 to Jul 1, 2026
1 month from start3 months6 months9 monthsFull profile year
Window: Jul 2, 2025 to Jul 1, 2026
Loaded map records: 0 maximum client sample
Full profile count: 163 records
Loading crash coordinatesBlue record-onlyYellow injuryRed fatal

Top Incident Locations along SR-73

Costa Mesa65 crashes
Irvine30 crashes
Newport Beach19 crashes
Aliso Viejo14 crashes
Unincorporated14 crashes
Laguna Beach10 crashes
San Juan Capistrano4 crashes
Laguna Hills3 crashes
Laguna Niguel3 crashes
Laguna Woods1 crashes

Direction of Travel Split

98
Other/Unknown
43
N/B
22
S/B

Severity & Casualties Summary

1
People reported killed
115
Injuries (People)
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Locations with the most matching SR-73 records

Counts reflect the road labels and city fields recorded in the source data for this reporting window. They do not account for traffic volume, road miles, or time spent traveling.

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Top locations in matching SR-73 crash records
RankRecorded cityCrashesSerious or fatalPeople killed
1Costa Mesa6511
2Irvine3010
3Newport Beach1900
4Aliso Viejo1410
5Unincorporated1400
6Laguna Beach1010
7San Juan Capistrano400
8Laguna Hills300
9Laguna Niguel300
10Laguna Woods100
Methodology

How this corridor profile is produced

No applied canonical mapping exists for SR-73 yet, so this profile temporarily uses the legacy curated alias matcher against the officer-recorded primary-road label. The reporting window is 2025-07-02 through 2026-07-01. Source records come from the California Highway Patrol California Crash Reporting System.

Read the full methodology and privacy notes
Limitations

What the numbers cannot establish

  • Raw crash counts do not measure individual risk or identify the “most dangerous” segment.
  • Traffic volume, vehicle miles traveled, road length, construction, and enforcement exposure are not controlled here.
  • Road and city labels can be incomplete, inconsistent, or revised after publication.

Cite or reuse this profile

This is independent analysis of public records. Keep the reporting window, source, and methodology attached when reusing a figure.

The Crash Data Project. "SR-73 Highway Crash Records Profile." Updated Jul 1, 2026. https://crashes.meruai.co/california/roads/sr-73. Analysis of California Crash Reporting System public records.
Read the methodology