Incident Description

00:00:00 Stalled DOT/Traffic Collision 145086SLO003

1179 Accident - Ambulance Responding 1179 14-14

SB55 AT 405

SB55 AT 405 Costa Mesa 14-Santa Maria Costa Mesa Costa Mesa Costa Mesa CHP 1179 14-14 SB55 AT 405 SB55 AT 405 405 NB 8.4 ML 405 NB 8.4 HV 55 SB 6.5 ML Incident Description This is a stalled DOT truck on SB 55 overpass at 405. The truck is hit by a vehicle, the vehicle is vaulted over the railing, and a 6 vehicle collision occurs below in the NB 405 lanes. The #2 and 3 lanes are blocked on SB 55 and the #1, 2, and 3 lanes are blocked on NB 405. The driver of the truck is uninjured, although there are 4 fatals, 2 major injured, and 4 minor injured in the collision below. MAIT is called to the scene to investigate the collision and a Sig Alert is declared. Places a call to CHP Dispatch to notify of stalled DOT vehicle. Dispatch, this is xxx. I'm on south 55 at the 405. My truck is out of service here, stuck in the lane. I need CHP assistance ASAP!" 00:01:00 Stalled DOT/Traffic Collision STALLED DOT SB SR-55 AT I-405 NEW LANE_BREAKDOWN 3 00:02:00 Stalled DOT/Traffic Collision

Operator should be verifying incident 187 on CAD Operator viewing cameras in incident area. 00:03:00 Stalled DOT/Traffic Collision CELLULAR 911 RPT DOT HT, 2ND VEH OVER THE SIDE, UNVERIFIED

00:03:30 Stalled DOT/Traffic Collision DUPLICATE CALL 00:04:30 Stalled DOT/Traffic Collision DUPLICATE CALL 00:05:00 Stalled DOT/Traffic Collision DOT HIT BY VEH, VEH OVER SIDE. 2ND VEH LANDED NB 405 BELOW, LG COLLISION OCCUR. REQ 2 1141 CODE 2 UNITS ASSIST

SB 55 @ WARNER AVE ACCIDENT AHEAD AT 405 OVERPASS Should be responding to incident 187 Should be monitoring ATMS operator 00:05:30 Stalled DOT/Traffic Collision DUPLICATE CALL 00:06:00 Stalled DOT/Traffic Collision 14-17 14-9 ENRT ASSIST 1183 1125

00:06:30 Stalled DOT/Traffic Collision DUPLICATE CALL 00:07:00 Stalled DOT/Traffic Collision DOT DRIVER UNINJURED, #2,3 LNS BLCKD SB 55. 14-14 MVNG TO 405 ASSESS DMG

SB 55 @ WARNER AVE ACCIDENT AHEAD AT 405 OVERPASS 2 RT LANES BLKD Should be updating the incident board. 00:08:00 Stalled DOT/Traffic Collision Hello, this is Cameron Stevens at KCLY TV channel 2. I was told that a car flew off an overpass causing a large pile-up on the freeway below. Incident should be confirmed I want to confirm the location so we can send a helicopter to check it out. 55/405 interchange 00:11:00 Stalled DOT/Traffic Collision Hello, this is Dakota Crew at KCOW radio. I just heard over the scanner that you have a major accident on I405 at 55. Should confirm incident. Can you give me a run down on what happened? A collision occurred on NB 55 at 405. A vehicle went over rail onto NB 405 causing a 6 car collision. 00:12:00 Stalled DOT/Traffic Collision 14-14 1097, MULTIPLE 1144 NB 405 AT 55 OVERPASS, 6 VEH TC BLOCKING 3 INSIDE LNS NB 405. DRVR AND PSSNGR IN VEH 1144, 2 OTHER FATALS, MULT INJR, REQ CRNR AND SIGALERT

NB 405 @ HARVARD ACCIDENT AT HWY-55 3 LEFT LNS BLKD NB 405 @ ICD ACCIDENT AT HWY-55 3 LEFT LNS BLKD Should fax and page sig alert information 00:12:30 Stalled DOT/Traffic Collision 1039 CRNR Should insert info for enroute coroner 00:13:00 Stalled DOT/Traffic Collision 14-17 1097, PARAMEDICS 1097. 1184 SB 55 FOR DOT 1125

00:14:00 Stalled DOT/Traffic Collision REQ MAIT, REQ 14-S UNIT, REQ TMT

Should be alert and advising radio on TMT. Operator should notify the TMT leader of incident 187 TMT leader espond to student action. Dispatch appropriate units??? 00:15:00 Stalled DOT/Traffic Collision Hello, this is Monica Stevens at KCLY radio. I called earlier about the accident on I405. Have any more details come in on that incident? Vehicles blocking 3 NB 405 lanes, 4 dead and 7 injured. Do you have an alternate route I can recommend? Yes (TBD) 00:16:00 Stalled DOT/Traffic Collision If Maintenance unit was sent out, radio the supervisor with a 10-97. Say that you're going to await MAIT investigation and transport other Maintenance worker. 00:17:00 Stalled DOT/Traffic Collision 14-9 1097, ASSIST 1184

00:18:00 Stalled DOT/Traffic Collision TRAFFIC BACKING SB 55 REQ TMT MEDIUM DUTY 1185

00:19:00 Stalled DOT/Traffic Collision 4 1144'S, 2 1180'S, 4 1181'S

Hello, this is Fred Roppel at KNOW TV." Have any more details come in on the pileup at 55/405? Vehicles blocking 3 NB 405 lanes, 4 dead and 7 injured, ??? mile backup Do you have an alternate route I can recommend? (pause for answer: Yes) 3 car collision, vehicles blocking #2,3,4 lanes. Moderate injuries. NB 5 @ EL TORO ACCIDENT AT HWY-55 3 RT LANES BLKD 00:21:00 Stalled DOT/Traffic Collision 1039 SABLAN TOWING

00:22:00 Stalled DOT/Traffic Collision 14-S3 1097 NB 405 @ 55 MAIT ETA 15

00:27:00 Stalled DOT/Traffic Collision CRNR 1097, INJURED TRANSPORTED

Should enter info for 10-97 coroner 00:35:00 Stalled DOT/Traffic Collision MAIT 1097 STARTING INVESTIGATION SB SR55

Should enter info for 10-97 MAIT 00:36:00 Stalled DOT/Traffic Collision Hello, CHP Dispatch. Do you have traffic control enroute for NB 405 at 55 Do you mean sign truck crews or cones on the road? Cones Should interact with the dispatch operator regarding cone crews 00:37:00 Stalled DOT/Traffic Collision MED DUTY 1185 1097, AWAIT FINISH MAIT BEFORE TOW VEH

00:40:00 Stalled DOT/Traffic Collision CRNR CONFIRMED FOUR FATAL, PREP TO TRANSPORT

00:47:00 Stalled DOT/Traffic Collision MAIT FINISHED W/ INVESTIGATION SB SR-55 AT I-405, PREP DOT TRCK FOR TOW

00:54:00 Stalled DOT/Traffic Collision MAIT STARTING INVESTIGATION NB 405 TO TAKE 30 MIN

00:55:00 Stalled DOT/Traffic Collision CLNUP NRLY FNSHD DOT RDY TO BE TWD, SB SR-55 LNS OPN IN 5

01:02:00 Stalled DOT/Traffic Collision 14-17 1097 DOT TRCK TWD, SB SR-55 OPN

SB 55 @ WARNER AVE Should fax and page information Maintenance workers are 10-98. Truck has been towed and taking maintenance worker, whose truck got hit, to the shop. 01:03:00 Stalled DOT/Traffic Collision MAIT PARTIAL CMPLT, PICS TKN, NEED MSRMNTS, INTERVIEWS

01:08:00 Stalled DOT/Traffic Collision REQ 6 ROT 1185

01:10:00 Stalled DOT/Traffic Collision MAIT NEARLY COMPLETE, FINISHING INTERVIEWS, TOW ETA 10

Have SB 55 TMT units go 10-98. 01:16:30 Stalled DOT/Traffic Collision MAIT FINISHED INVESTIGATION 1098, START CLEANUP WHEN 1185S ARRIVE

01:19:00 Stalled DOT/Traffic Collision 1185 1097 PARTIAL OPENING IN 15

01:30:00 Stalled DOT/Traffic Collision OPN #2,3 LNS, FULL OPN IN 5

NB 405 @ HARVARD ACCIDENT AT HWY-55 RT LANE BLKD NB 405 @ ICD ACCIDENT AT HWY-55 RT LANE BLKD NB 5 @ EL TORO ACCIDENT AT HWY-55 RT LANE BLKD Should fax and page information 01:35:00 Stalled DOT/Traffic Collision VEH TWD, LNS OPN, 14-S, 14-9, 14-14 1098

Hello, this is Terry Webb at KTSV TV channel 11. Are the lanes clear NB 405 at 55? Lanes were just cleared. How many were injured in that accident? There were 3 dead and 7 injured. NB 405 @ HARVARD NB 405 @ ICD NB 5 @ EL TORO Should fax and page information Should be alert to the situation 01:45:00 Stalled DOT/Traffic Collision Have NB 405 TMT units go 10-98.