The most dangerous intersection in Maricopa County is in Phoenix at 67th Avenue and McDowell Road. These crossroads led to 229 crashes (between 2018 and 2022) with a crash frequency of 0.534 and crash severity score of 0.986. 99th Avenue and Lower Buckeye Road had a whopping 429 crashes during this period (the most of any intersection), but is 10th in regard to “crash risk”.
Wondering which Maricopa County / Phoenix area intersections are the most dangerous to travel through?
If so, you’re in luck, as Maricopa Association of Governments recently conducted a five-year study on the topic and shared their findings with the public.
Avoid driving in Phoenix’s West Valley! The most dangerous intersections and those with the most crashes are disproportionately in West Phoenix and westside communities. Drive safe!
Phoenix Metro’s Most Dangerous Intersections Map
Definitions
Rank: Numerical representation of the locations sorted highest to lowest of all locations Final Score.
Agency/ies: Local agency where intersection is located. Multiple agencies are shown where the agency boundary runs through the intersection.
Signal Owned & Maintained By: Agency that owns and maintains the traffic signal.
Crashes: Total number of reported crashes at the location during the five-year analysis period (also referred to as Crash Frequency).
CF (Crash Frequency) Score: The ratio of the crash frequency at the intersection to the highest intersection crash frequency for the region.
CS (Crash Severity) Score: The ratio of the crash severity value for the intersection to the maximum crash severity value for the region.
CT (Crash Type) Score: The ratio between CT Cost at a particular intersection to maximum CT Cost at all intersections in the region.
Final Score: Weighted Intersection Safety Score (ISS) = 25% Crash Frequency Score + 50% Crash Severity Score + 25% Crash Type Score.
For a description of CS and CT scores, see MAG Network Screening Methodology for Intersections.
10 Most Dangerous Intersections (Phoenix Metro)
Note: Based on 2018-2022 Crash Data (MAG Region)
#1 67th Ave & McDowell Rd (Phoenix)
Crashes: 229
CF Score: 0.534
CS Score: 0.986
CT Score: 1.038
Final Score: 0.886
#2 51st Ave & Camelback Rd (Glendale)
Crashes: 174
CF Score: 0.406
CS Score: 0.939
CT Score: 0.736
Final Score: 0.755
#3 19th Ave & Peoria Ave (Phoenix)
Crashes: 105
CF Score: 0.245
CS Score: 0.885
CT Score: 0.624
Final Score: 0.66
#4 67th Ave & Thomas Rd (Phoenix)
Crashes: 128
CF Score: 0.298
CS Score: 0.883
CT Score: 0.487
Final Score: 0.638
#5 67th Ave & Indian School Rd (Phoenix)
Crashes: 256
CF Score: 0.597
CS Score: 0.58
CT Score: 0.758
Final Score: 0.629
#6 83rd Ave & Indian School Rd (Phoenix)
Crashes: 187
CF Score: 0.436
CS Score: 0.722
CT Score: 0.592
Final Score: 0.618
#7 Cave Creek Rd & Sweetwater Ave (Phoenix)
Crashes: 46
CF Score: 0.107
CS Score: 1
CT Score: 0.348
Final Score: 0.614
#8 51st Ave & Thomas Rd (Phoenix)
Crashes: 181
CF Score: 0.422
CS Score: 0.701
CT Score: 0.622
Final Score: 0.611
#9 27th Ave & Camelback Rd (Phoenix)
Crashes: 206
CF Score: 0.48
CS Score: 0.536
CT Score: 0.831
Final Score: 0.596
#10 99th Ave & Lower Buckeye Rd (Phoenix)
Crashes: 429
CF Score: 1
CS Score: 0.234
CT Score: 0.829
Final Score: 0.574
10 Phoenix Metro Intersections With the Most Accidents
Note: Based on 2018-2022 Crash Data (MAG Region)
#1 99th Ave & Lower Buckeye Rd (Phoenix)
Crashes: 429
CF Score: 1
CS Score: 0.234
CT Score: 0.829
Final Score: 0.574
#2 Baseline Rd & I-10 (Tempe)
Crashes: 257
CF Score: 0.599
CS Score: 0.216
CT Score: 0.581
Final Score: 0.403
#3 67th Ave & Indian School Rd (Phoenix)
Crashes: 256
CF Score: 0.597
CS Score: 0.58
CT Score: 0.758
Final Score: 0.629
#4 67th Ave & McDowell Rd (Phoenix)
Crashes: 229
CF Score: 0.534
CS Score: 0.986
CT Score: 1.038
Final Score: 0.886
#5 75th Ave & Indian School Rd (Phoenix)
Crashes: 224
CF Score: 0.522
CS Score: 0.339
CT Score: 0.822
Final Score: 0.506
#6 75th Ave & McDowell Rd (Phoenix)
Crashes: 224
CF Score: 0.522
CS Score: 0.305
CT Score: 0.702
Final Score: 0.459
#7 99th Ave & McDowell Rd (Avondale)
Crashes: 224
CF Score: 0.522
CS Score: 0.211
CT Score: 0.577
Final Score: 0.38
#8 Bell Rd & Litchfield Rd (Surprise)
Crashes: 223
CF Score: 0.52
CS Score: 0.215
CT Score: 0.516
Final Score: 0.366
#9 27th Ave & Camelback Rd (Phoenix)
Crashes: 206
CF Score: 0.48
CS Score: 0.536
CT Score: 0.831
Final Score: 0.596
#10 75th Ave & Thomas Rd (Phoenix)
Crashes: 204
CF Score: 0.476
CS Score: 0.299
CT Score: 0.716
Final Score: 0.447
Top 100 Intersections Ranked by Crash Risk (Full Data Set)
Note: Based on 2018-2022 Crash Data (MAG Region)
