Browse California crash locations by county
Explore 215 Colusa County crash locations
Search named intersections and defined road segments in Colusa County, California. The table displays 215 qualifying compact location groups, ordered by reported injury and fatal crash counts in the January 1, 2020–December 31, 2024 TIMS/SWITRS export.
Historical crash counts are not a current safety rating or a definitive ranking of the county’s most dangerous roads. The selection method excludes records that cannot be reliably assigned. Counts do not account for traffic volume and do not establish fault in a new crash.
Injured in a car accident? Call (213) 583-0977 or request a free consultation. Our office is in Sherman Oaks; phone and video consultations are available throughout California. Hablamos Español.
Showing 215 locations
| No. | Location | City / area | Crashes |
|---|---|---|---|
| 1 | 10th St & Fremont St | Colusa | 3 |
| 2 | Freeway Undercrossing Rd & Old Hwy 99W | Unincorporated Colusa County | 3 |
| 3 | Sr-16 & Sr-20 | Unincorporated Colusa County | 3 |
| 4 | 3rd St & Fremont St | Colusa | 2 |
| 5 | 5th St & Market St | Colusa | 2 |
| 6 | 6th St & Fremont St | Colusa | 2 |
| 7 | County Line Rd & Old Hwy 99W | Unincorporated Colusa County | 2 |
| 8 | Hahn Rd & Lonestar Rd | Unincorporated Colusa County | 2 |
| 9 | Sr-20 & Wilson Ave | Unincorporated Colusa County | 2 |
| 10 | I-5 N/B, 250–499 feet south of Lenahan Rd | Unincorporated Colusa County | 2 |
| 11 | I-5 S/B, 250–499 feet south of Hillgate Rd | Unincorporated Colusa County | 2 |
| 12 | E St & Husted Rd | Williams | 2 |
| 13 | Husted Rd & Rt 20 | Williams | 2 |
| 14 | Marguerite St & Rt 20 | Williams | 2 |
| 15 | Rt 20 & Virginia Way | Williams | 2 |
| 16 | 2nd St & Market St | Colusa | 1 |
| 17 | 2nd St & Sioc St | Colusa | 1 |
| 18 | 6th St & Lafayette St | Colusa | 1 |
| 19 | 6th St & Parkhill St | Colusa | 1 |
| 20 | 6th St & Rt 20 | Colusa | 1 |
| 21 | 8th St & Wesbter St | Colusa | 1 |
| 22 | Bridge St & Carson St | Colusa | 1 |
| 23 | Bridge St & East Carson St | Colusa | 1 |
| 24 | Bridge St & Parkhill St | Colusa | 1 |
| 25 | Bridge St & Sioc St | Colusa | 1 |
| 26 | Bridge St & Wescott Rd | Colusa | 1 |
| 27 | Harris St & Rt 20 | Colusa | 1 |
| 28 | Jay St & Rt 20 | Colusa | 1 |
| 29 | Larson Ln & Wescott Rd | Colusa | 1 |
| 30 | Rt 20 & Will S Green Ave | Colusa | 1 |
| 31 | I-5 N/B, 1500–1749 feet north of Freeway Undercrossing Rd | Colusa | 1 |
| 32 | 1st St & Olive St | Unincorporated Colusa County | 1 |
| 33 | 2 Mile Rd & Maxwell Colusa Rd | Unincorporated Colusa County | 1 |
| 34 | 5th St & Hall St | Unincorporated Colusa County | 1 |
| 35 | 7th St & Hillgate Rd | Unincorporated Colusa County | 1 |
| 36 | Bridge St & East Parkhill St | Unincorporated Colusa County | 1 |
| 37 | Brown Rd & Sr-45 | Unincorporated Colusa County | 1 |
| 38 | Central St & Old Hwy 99W | Unincorporated Colusa County | 1 |
| 39 | Christie Lane & Sr-45 | Unincorporated Colusa County | 1 |
| 40 | Cortina School Rd & Meyers Rd | Unincorporated Colusa County | 1 |
| 41 | Danley Rd & Maxwell Sites Rd | Unincorporated Colusa County | 1 |
| 42 | Dry Slough Rd & Grimes-Arbuckle Rd | Unincorporated Colusa County | 1 |
| 43 | Eddy Rd & Old Hwy 99W | Unincorporated Colusa County | 1 |
| 44 | Finks Rd & Old Hwy 99W | Unincorporated Colusa County | 1 |
| 45 | Grimes-Arbuckle Rd & Tule Rd | Unincorporated Colusa County | 1 |
| 46 | Hahn Rd & Old Hwy 99W | Unincorporated Colusa County | 1 |
| 47 | Hall St & Hall St And William St | Unincorporated Colusa County | 1 |
| 48 | Hankins Rd & Zumwalt Rd | Unincorporated Colusa County | 1 |
| 49 | Harrington Ave & Wildwood Rd | Unincorporated Colusa County | 1 |
| 50 | Jensen Ave & Wagner Ave | Unincorporated Colusa County | 1 |
| 51 | Lone Star & State Hwy 20 | Unincorporated Colusa County | 1 |
| 52 | Lone Star Rd & Sr-20 | Unincorporated Colusa County | 1 |
| 53 | Lurline Rd & Old Hwy 99W | Unincorporated Colusa County | 1 |
| 54 | Mccoy Rd & Wilson Ave | Unincorporated Colusa County | 1 |
| 55 | Myers Rd & Old Hwy 99W | Unincorporated Colusa County | 1 |
| 56 | Myers Rd & Zumwalt Rd | Unincorporated Colusa County | 1 |
| 57 | N California St & Olive St | Unincorporated Colusa County | 1 |
| 58 | Neva Ave & State Hwy 45 | Unincorporated Colusa County | 1 |
| 59 | Old Hwy 99W & Yolo County Line Rd | Unincorporated Colusa County | 1 |
| 60 | Prince St & Winter St | Unincorporated Colusa County | 1 |
| 61 | Sachreiter Rd & Sycamore Slough Rd | Unincorporated Colusa County | 1 |
| 62 | Sr-20 & Sycamore Cutoff | Unincorporated Colusa County | 1 |
| 63 | Sr-20 & Walnut Dr | Unincorporated Colusa County | 1 |
| 64 | Sr-45 & Wintun Rd | Unincorporated Colusa County | 1 |
| 65 | Bear Valley Rd, 250–499 feet north of Wilbur Springs Rd | Unincorporated Colusa County | 1 |
| 66 | Butte Slough Rd, 1500–1749 feet east of River Rd | Unincorporated Colusa County | 1 |
| 67 | College City Rd, 1250–1499 feet north of Friel Rd | Unincorporated Colusa County | 1 |
| 68 | Cortina School Rd, 250–499 feet south of Sand Creek Rd | Unincorporated Colusa County | 1 |
| 69 | County Line Rd, 500–749 feet east of Johns School Rd | Unincorporated Colusa County | 1 |
| 70 | County Line Rd, 1500–1749 feet east of Wildwood Rd | Unincorporated Colusa County | 1 |
| 71 | Forest Rte 17N15, 1000–1249 feet east of Forest Route 18N07 | Unincorporated Colusa County | 1 |
| 72 | George Rd, 500–749 feet south of Hankins Rd | Unincorporated Colusa County | 1 |
| 73 | Gibson Rd, 500–749 feet north of Freshwater Rd | Unincorporated Colusa County | 1 |
| 74 | Greenbay Rd, 250–499 feet east of Gabby Rd | Unincorporated Colusa County | 1 |
| 75 | Gridley Rd, 1000–1249 feet west of Putnam Rd | Unincorporated Colusa County | 1 |
| 76 | Grimes-Arbuckle Rd, 1000–1249 feet west of Sutter Vineyards Rd | Unincorporated Colusa County | 1 |
| 77 | Grimes-Arbuckle Rd, 250–499 feet west of Sycamore Slough Rd | Unincorporated Colusa County | 1 |
| 78 | Hankins Rd, 1250–1499 feet east of Turner Rd | Unincorporated Colusa County | 1 |
| 79 | Hwy 99W Frontage Rd, 1500–1749 feet south of Ware Rd | Unincorporated Colusa County | 1 |
| 80 | I-5, 250–499 feet south of Cortina Creek U/C | Unincorporated Colusa County | 1 |
| 81 | I-5 N/B, 1000–1249 feet north of College City Off-Ramp | Unincorporated Colusa County | 1 |
| 82 | I-5 N/B, 500–749 feet north of Cortina Creek | Unincorporated Colusa County | 1 |
| 83 | I-5 N/B, 1000–1249 feet north of E St | Unincorporated Colusa County | 1 |
| 84 | I-5 N/B, 1500–1749 feet south of Greenbay Rd | Unincorporated Colusa County | 1 |
| 85 | I-5 N/B, 1000–1249 feet north of Greenbay Rd Overcrossing | Unincorporated Colusa County | 1 |
| 86 | I-5 N/B, 750–999 feet north of Hall St O/C | Unincorporated Colusa County | 1 |
| 87 | I-5 N/B, 1500–1749 feet south of Hunters Creek | Unincorporated Colusa County | 1 |
| 88 | I-5 N/B, 250–499 feet north of Husted Rd | Unincorporated Colusa County | 1 |
| 89 | I-5 N/B, 1500–1749 feet south of Myers Rd | Unincorporated Colusa County | 1 |
| 90 | I-5 N/B, 500–749 feet south of Perkins Rd | Unincorporated Colusa County | 1 |
| 91 | I-5 Nb, 1000–1249 feet north of Old Hwy 99W Maxwell Overhead | Unincorporated Colusa County | 1 |
| 92 | I-5 Northbound, 1000–1249 feet south of Fairview Rd | Unincorporated Colusa County | 1 |
| 93 | I-5 Northbound, 1750–1999 feet south of Myers Rd | Unincorporated Colusa County | 1 |
| 94 | I-5 S/B, 250–499 feet north of Delevan Rd | Unincorporated Colusa County | 1 |
| 95 | I-5 S/B, 500–749 feet south of Fairview Rd | Unincorporated Colusa County | 1 |
| 96 | I-5 S/B, 250–499 feet south of Freshwater Rd | Unincorporated Colusa County | 1 |
| 97 | I-5 S/B, 750–999 feet north of Greenbay Rd | Unincorporated Colusa County | 1 |
| 98 | I-5 S/B, 1000–1249 feet south of Harrington Ave | Unincorporated Colusa County | 1 |
| 99 | I-5 S/B, 250–499 feet south of Hillgate Rd Undercrossing | Unincorporated Colusa County | 1 |
| 100 | I-5 S/B, 1000–1249 feet north of Husted Rd | Unincorporated Colusa County | 1 |
| 101 | I-5 S/B, 250–499 feet north of Maxwell Overhead Off-Ramp | Unincorporated Colusa County | 1 |
| 102 | I-5 S/B, 500–749 feet south of Maxwell Rd | Unincorporated Colusa County | 1 |
| 103 | I-5 S/B, 250–499 feet south of State Hwy 20 | Unincorporated Colusa County | 1 |
| 104 | I-5 S/B From Maxwell Colusa Rd, 1000–1249 feet south of Maxwell Rd | Unincorporated Colusa County | 1 |
| 105 | I-5 S/B To Sr-20, 500–749 feet north of State Hwy 20 | Unincorporated Colusa County | 1 |
| 106 | I-5 Southbound, 750–999 feet north of Delevan Rd | Unincorporated Colusa County | 1 |
| 107 | I-5 Southbound, 500–749 feet north of Frontage | Unincorporated Colusa County | 1 |
| 108 | I-5 Southbound, 250–499 feet north of Frontage Rd Off | Unincorporated Colusa County | 1 |
| 109 | I-5 Southbound, 750–999 feet north of Sr-20 Overcrossing | Unincorporated Colusa County | 1 |
| 110 | Interstate 5 I-5 Southbound, 1750–1999 feet north of Old Hwy 99W | Unincorporated Colusa County | 1 |
| 111 | Interstate 5 N/B, 1000–1249 feet north of County Line Rd | Unincorporated Colusa County | 1 |
| 112 | Interstate 5 N/B, 500–749 feet south of Freeway Underpass Rd | Unincorporated Colusa County | 1 |
| 113 | Interstate 5 N/B, 1750–1999 feet south of Greenbay Rd | Unincorporated Colusa County | 1 |
| 114 | Interstate 5 N/B, 1750–1999 feet south of Husted Rd | Unincorporated Colusa County | 1 |
| 115 | Interstate 5 N/B, 1750–1999 feet north of Meyers Rd | Unincorporated Colusa County | 1 |
| 116 | Interstate 5 N/B, 750–999 feet north of Myers Rd | Unincorporated Colusa County | 1 |
| 117 | Interstate 5 N/B, 500–749 feet south of Myers Rd Overcrossing | Unincorporated Colusa County | 1 |
| 118 | Interstate 5 N/B, 750–999 feet north of Old Hwy 99W | Unincorporated Colusa County | 1 |
| 119 | Interstate 5 N/B, 1500–1749 feet north of Yolo County Line Rd | Unincorporated Colusa County | 1 |
| 120 | Interstate 5 Northbound, 1500–1749 feet south of Fwy Underpass Rd | Unincorporated Colusa County | 1 |
| 121 | Interstate 5 Northbound N/B, 250–499 feet north of Hillgate Rd U/C | Unincorporated Colusa County | 1 |
| 122 | Interstate 5 S/B, 1000–1249 feet south of Hahn Rd | Unincorporated Colusa County | 1 |
| 123 | Interstate 5 S/B, 1000–1249 feet south of Hillgate Rd | Unincorporated Colusa County | 1 |
| 124 | Interstate 5 S/B, 1500–1749 feet north of Meyers Ln | Unincorporated Colusa County | 1 |
| 125 | Interstate 5 Southbound, 1500–1749 feet south of Greenbay Rd | Unincorporated Colusa County | 1 |
| 126 | Interstate 5 Southbound, 750–999 feet south of Hillgate Rd | Unincorporated Colusa County | 1 |
| 127 | Interstate 5 Southbound, 250–499 feet north of Maxwell Rd | Unincorporated Colusa County | 1 |
| 128 | Interstate-5 N/B, 1500–1749 feet south of E St | Unincorporated Colusa County | 1 |
| 129 | Leesville Rd, 500–749 feet north of Old Wilbur Rd | Unincorporated Colusa County | 1 |
| 130 | Lodoga-Stonyford Rd, 750–999 feet south of Fouts Spring Rd | Unincorporated Colusa County | 1 |
| 131 | Lodoga-Stonyford Rd, 500–749 feet north of Goat Mountain Rd | Unincorporated Colusa County | 1 |
| 132 | Lodoga-Stonyford Rd, 1750–1999 feet west of Leesville-Lodoga Rd | Unincorporated Colusa County | 1 |
| 133 | Lone Star Rd, 750–999 feet south of Abel Rd | Unincorporated Colusa County | 1 |
| 134 | Lone Star Rd, 500–749 feet south of Ware Rd | Unincorporated Colusa County | 1 |
| 135 | Lonestar Rd, 1000–1249 feet south of Myers Rd | Unincorporated Colusa County | 1 |
| 136 | Lurline Ave, 250–499 feet west of Ranch Rd | Unincorporated Colusa County | 1 |
| 137 | Maxwell Colusa Rd, 750–999 feet west of Two Mile Rd | Unincorporated Colusa County | 1 |
| 138 | Midway Ave, 250–499 feet north of Gail Ave | Unincorporated Colusa County | 1 |
| 139 | Norman Rd, 500–749 feet east of Young Rd | Unincorporated Colusa County | 1 |
| 140 | Old 99 W, 1250–1499 feet south of Glenn/Colusa County Line | Unincorporated Colusa County | 1 |
| 141 | Old Hwy 99W, 1500–1749 feet north of Bailey Rd | Unincorporated Colusa County | 1 |
| 142 | Old Hwy 99W, 250–499 feet north of Gibson Rd | Unincorporated Colusa County | 1 |
| 143 | Old Hwy 99W, 1750–1999 feet south of Grimes-Arbuckle Rd | Unincorporated Colusa County | 1 |
| 144 | Old Hwy 99W, 1250–1499 feet south of Harrington Ave | Unincorporated Colusa County | 1 |
| 145 | Old Hwy 99W, 750–999 feet north of North St | Unincorporated Colusa County | 1 |
| 146 | Old Hwy 99W, 750–999 feet north of Perkins Rd | Unincorporated Colusa County | 1 |
| 147 | Old Hwy 99W, 500–749 feet south of Ware Rd | Unincorporated Colusa County | 1 |
| 148 | Poundstone Rd, 500–749 feet south of Cecil Rd | Unincorporated Colusa County | 1 |
| 149 | River Rd, 1750–1999 feet south of Gould Rd | Unincorporated Colusa County | 1 |
| 150 | River Rd, 1250–1499 feet south of Gridley Rd | Unincorporated Colusa County | 1 |
| 151 | River Rd, 1500–1749 feet south of Laux Rd | Unincorporated Colusa County | 1 |
| 152 | River Rd N/B, 1250–1499 feet south of Gridley Rd | Unincorporated Colusa County | 1 |
| 153 | Rt 20, 1000–1249 feet north of Rt 16 | Unincorporated Colusa County | 1 |
| 154 | Rt 20, 500–749 feet west of Sr45 | Unincorporated Colusa County | 1 |
| 155 | Sites-Lodoga Rd, 750–999 feet east of Ladoga-Stonyford Rd | Unincorporated Colusa County | 1 |
| 156 | Sites-Lodoga Rd, 500–749 feet west of Rail Canyon Rd | Unincorporated Colusa County | 1 |
| 157 | Sr-16, 250–499 feet north of Col Mpm 243 | Unincorporated Colusa County | 1 |
| 158 | Sr-20, 500–749 feet east of 20 Col 856 | Unincorporated Colusa County | 1 |
| 159 | Sr-20, 750–999 feet west of Hunter Rd | Unincorporated Colusa County | 1 |
| 160 | Sr-20, 1000–1249 feet east of Lake County Line | Unincorporated Colusa County | 1 |
| 161 | Sr-20, 750–999 feet east of Leesville Rd | Unincorporated Colusa County | 1 |
| 162 | Sr-20, 250–499 feet east of Mile Marker 1204 | Unincorporated Colusa County | 1 |
| 163 | Sr-20, 500–749 feet west of Mpm 098 | Unincorporated Colusa County | 1 |
| 164 | Sr-20, 1000–1249 feet west of Niagara Ave | Unincorporated Colusa County | 1 |
| 165 | Sr-20, 500–749 feet west of San Jose Ave | Unincorporated Colusa County | 1 |
| 166 | Sr-20, 500–749 feet west of Schaad Rd | Unincorporated Colusa County | 1 |
| 167 | Sr-20, 250–499 feet east of Sunrise Blvd | Unincorporated Colusa County | 1 |
| 168 | Sr-20, 1250–1499 feet west of Sycamore Cut Off | Unincorporated Colusa County | 1 |
| 169 | Sr-20, 1500–1749 feet east of Sycamore Cutoff Rd | Unincorporated Colusa County | 1 |
| 170 | Sr-20, 1000–1249 feet west of Will S Green Rd | Unincorporated Colusa County | 1 |
| 171 | Sr-20 E/B, 1000–1249 feet east of Farinon Rd | Unincorporated Colusa County | 1 |
| 172 | Sr-20 E/B, 500–749 feet east of Lonestar Rd | Unincorporated Colusa County | 1 |
| 173 | Sr-20 E/B, 1500–1749 feet east of Niagara Ave | Unincorporated Colusa County | 1 |
| 174 | Sr-20 E/B, 1500–1749 feet east of Walnut Dr | Unincorporated Colusa County | 1 |
| 175 | Sr-20 E/B, 1000–1249 feet east of Will S Green Rd | Unincorporated Colusa County | 1 |
| 176 | Sr-45, 1000–1249 feet north of Dodge Rd | Unincorporated Colusa County | 1 |
| 177 | Sr-45, 1500–1749 feet north of Dry Slough Rd | Unincorporated Colusa County | 1 |
| 178 | Sr-45, 750–999 feet north of Fruitvale Ave | Unincorporated Colusa County | 1 |
| 179 | Sr-45, 250–499 feet south of Harbison Rd | Unincorporated Colusa County | 1 |
| 180 | Sr-45, 1000–1249 feet north of Paradise Rd | Unincorporated Colusa County | 1 |
| 181 | Sr-45, 500–749 feet south of Reese Ave | Unincorporated Colusa County | 1 |
| 182 | Sr-45, 500–749 feet south of Sycamore Cut Off | Unincorporated Colusa County | 1 |
| 183 | Sr-45, 500–749 feet south of Sycamore Slough | Unincorporated Colusa County | 1 |
| 184 | Sr-45 N/B, 1250–1499 feet north of Reese Ave | Unincorporated Colusa County | 1 |
| 185 | Sr-45 S/B, 750–999 feet south of Ceres Rd | Unincorporated Colusa County | 1 |
| 186 | State Hwy 20, 250–499 feet west of 20 Col Mpm 303 | Unincorporated Colusa County | 1 |
| 187 | State Hwy 20, 750–999 feet east of Mile Post Marker 168 | Unincorporated Colusa County | 1 |
| 188 | State Hwy 20, 1500–1749 feet west of Niagara Ave | Unincorporated Colusa County | 1 |
| 189 | State Hwy 20, 1750–1999 feet west of Walnut Dr | Unincorporated Colusa County | 1 |
| 190 | State Hwy 45, 1500–1749 feet south of Packer Rd | Unincorporated Colusa County | 1 |
| 191 | State Hwy 45, 250–499 feet south of Roberts Rd | Unincorporated Colusa County | 1 |
| 192 | State Route 20, 1750–1999 feet west of King Rd | Unincorporated Colusa County | 1 |
| 193 | State Route 20, 500–749 feet east of Moon Bend Rd | Unincorporated Colusa County | 1 |
| 194 | State Route 20, 1250–1499 feet west of San Jose Rd | Unincorporated Colusa County | 1 |
| 195 | State Route 45, 1000–1249 feet south of Southam Rd | Unincorporated Colusa County | 1 |
| 196 | State Route 45 S/B, 1000–1249 feet north of Wintun Rd | Unincorporated Colusa County | 1 |
| 197 | Wildwood Rd, 250–499 feet south of Barbra Way | Unincorporated Colusa County | 1 |
| 198 | Wildwood Rd, 250–499 feet north of Bruener Rd | Unincorporated Colusa County | 1 |
| 199 | Wildwood Rd, 1500–1749 feet south of Nonpareil Ave | Unincorporated Colusa County | 1 |
| 200 | Wildwood Rd, 1250–1499 feet south of Tess Dr | Unincorporated Colusa County | 1 |
| 201 | Wyer Rd, 1500–1749 feet north of Yolo County Line Rd | Unincorporated Colusa County | 1 |
| 202 | Wyre Rd, 1750–1999 feet south of Boles Rd | Unincorporated Colusa County | 1 |
| 203 | Yolo County Line Rd, 500–749 feet east of Rd 88 | Unincorporated Colusa County | 1 |
| 204 | 5th St & B St | Williams | 1 |
| 205 | 5th St & E St | Williams | 1 |
| 206 | 9th St & A St | Williams | 1 |
| 207 | 9th St & C St | Williams | 1 |
| 208 | 9th St & H St | Williams | 1 |
| 209 | E St & Rt 20 | Williams | 1 |
| 210 | E St & Rt 5 | Williams | 1 |
| 211 | Franklin Dr & Vann St | Williams | 1 |
| 212 | Margurite St & Rt 20 | Williams | 1 |
| 213 | N Virginia Way & Rt 20 | Williams | 1 |
| 214 | E St, 250–499 feet east of I-5 | Williams | 1 |
| 215 | Husted Rd, 250–499 feet south of Abel Rd | Williams | 1 |
No locations match your search. Try a street name or city without abbreviations.
Colusa County source totals
The full county export contains 624 distinct injury and fatal crash records, including 31 fatal crashes. The records report 34 people killed and 842 people injured. People and crashes are different measures; one crash may injure multiple people.
| Year | Crashes |
|---|---|
| 2020 | 124 |
| 2021 | 143 |
| 2022 | 115 |
| 2023 | 109 |
| 2024 | 133 |
How to read the location table
The 215 displayed groups contain 233 distinct crash records. The highest included group count is 3; the lowest is 1. These groups represent a subset of the county export. Counts apply to the named crossing or defined offset segment, rather than the entire road.
This county has 215 qualifying groups under the stated method, so fewer than 1,000 are shown. No locations or crash counts have been added to reach a target number.
Property-damage-only and unreported crashes are not represented. Records may contain approximate coordinates or street-name variants. More recorded crashes do not by themselves establish a greater risk per trip, a roadway defect, or negligence. Traffic patterns and road conditions may have changed since 2024.
Source and selection method
Source: UC Berkeley SafeTREC TIMS/SWITRS Colusa County crash export downloaded October 17, 2026. The source covers January 1, 2020 through December 31, 2024. Read the TIMS data overview and field definitions.
- Each crash CASE_ID is counted once. Only injury/fatal severity codes and usable recorded coordinates within California’s geographic bounds are eligible.
- Intersection groups use records marked as intersection events within the reported city or area. Basic street suffixes and reversed street order are normalized. Other directional words are retained; spelling aliases may remain separate.
- Non-intersection groups use the named primary road, reference road, reported direction, and a 250-foot offset band between 250 and 1,999 feet from the reference road.
- Groups with a recorded point more than 180 metres from their median coordinate are excluded for geographic ambiguity. Only one group per named road pair and reported jurisdiction is selected to limit overlap.
- Eligible groups are ordered by crash count, with an alphabetical tie-break. Up to 1,000 groups are displayed. Equal counts do not establish different risk levels.
Conservative grouping can omit adjacent crashes and records with missing, dispersed, or inconsistent location information. This is a reproducible selection from the downloaded export, not an independently surveyed ranking of every intersection. It is not a statewide risk comparison.
After a crash at one of these locations
Keep the exact intersection or road offset, incident date, report number, original photographs or video, witness contacts, insurance correspondence, and medical records. Historical counts do not decide responsibility or claim value. Read our California car accident guide or contact Weiss Attorneys.
