{"data":{"route":"SR-4","jurisdictions_covered":["US-CA"],"scoped_destination":null,"worst_status":"restricted","worst_chain_control_severity":null,"worst_chain_control_code":null,"worst_chain_control_raw":null,"active_restrictions":1,"total_segments":31,"summary":"Lane restrictions are reported on SR-4.","sections":[{"alert_type":"lane_closure","source":"ca-d10-lane-closures","segments":[{"id":"ca-d10-lane-closures:C4RA-2-20260202-SR-4","route":"SR-4","direction":"both","segment_description":"Old River Bridge-Contra Costa/San Joaquin County Line to Old River Bridge-Contra Costa/San Joaquin County Line","overall_status":"restricted","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":null,"status_description":"One-Way Traffic on SR-4 East / West due to Bridge Work. Reported lane count: 1 of 2. Estimated delay: unknown.","start_lat":37.890893,"start_lon":-121.569959,"end_lat":37.890893,"end_lon":-121.569959,"type_of_closure":"One-Way Traffic","type_of_work":"Bridge Work","lanes_closed":1,"total_existing_lanes":2,"estimated_delay_minutes":null,"valid_from":null,"valid_until":"2026-07-27T01:59:00.000Z","destination_scope":null}]},{"alert_type":"chain_control","source":"ca-d10-chain-controls","segments":[{"id":"ca-d10-chain-controls:10-CAL-4-27.17-E-01E","route":"SR-4","direction":"E","segment_description":"DOUGLAS FLAT","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.1089,"start_lon":-120.4612,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2024-04-05T18:31:38.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-30.05-E-02E","route":"SR-4","direction":"E","segment_description":"MURPHY'S","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.1436,"start_lon":-120.451,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2025-03-14T15:01:45.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-32.43-E-03E","route":"SR-4","direction":"E","segment_description":"INDIAN SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.165,"start_lon":-120.42526,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-18T19:08:32.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-33.69-E-04E","route":"SR-4","direction":"E","segment_description":"HANFORD HILL","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.172,"start_lon":-120.4044,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-18T19:08:32.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-35.48-W-04W","route":"SR-4","direction":"W","segment_description":"HATHAWAY PINES","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.1831,"start_lon":-120.37705,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-18T19:08:32.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-36.6-E-05E","route":"SR-4","direction":"E","segment_description":"HATHAWAY PINES","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.19279,"start_lon":-120.36446,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-21T23:33:43.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-39.25-E-06E","route":"SR-4","direction":"E","segment_description":"TIPTON HOUSE","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.2293,"start_lon":-120.3688,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-21T23:33:43.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-41.08-W-06W","route":"SR-4","direction":"W","segment_description":"ARNOLD","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.25269,"start_lon":-120.35566,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-22T22:55:15.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-41.64-E-07E","route":"SR-4","direction":"E","segment_description":"ARNOLD","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.2565,"start_lon":-120.3476,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-12T14:22:23.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-42.53-W-07W","route":"SR-4","direction":"W","segment_description":"BLUE LAKE SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.26423,"start_lon":-120.33531,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-02-22T22:55:15.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-42.68-E-08E","route":"SR-4","direction":"E","segment_description":"BLUE LAKE SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.2651,"start_lon":-120.3334,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-44-E-08EA","route":"SR-4","direction":"E","segment_description":"BIG TREES PARK","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.2741,"start_lon":-120.31602,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-47.08-W-08W","route":"SR-4","direction":"W","segment_description":"DORRINGTON","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.30054,"start_lon":-120.27733,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-49.28-E-09E","route":"SR-4","direction":"E","segment_description":"CAMP CONNEL VILLA","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.3227,"start_lon":-120.2589,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-49.9-E-10E","route":"SR-4","direction":"E","segment_description":"MILL CREEK","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.32371,"start_lon":-120.24879,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-53-W-10W","route":"SR-4","direction":"W","segment_description":"COTTAGE SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.35035,"start_lon":-120.2119,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-53.01-E-11E","route":"SR-4","direction":"E","segment_description":"COTTAGE SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.35049,"start_lon":-120.21184,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T12:17:00.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-56.3-E-12E","route":"SR-4","direction":"E","segment_description":"POISON SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.38902,"start_lon":-120.18315,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-27T11:37:25.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-56.27-W-11W","route":"SR-4","direction":"W","segment_description":"POISON SPRINGS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.38904,"start_lon":-120.18348,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-22T20:33:11.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-61.7-E-13E","route":"SR-4","direction":"E","segment_description":"BIG MEADOWS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.41775,"start_lon":-120.10318,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-27T16:01:47.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-63.9-W-13W","route":"SR-4","direction":"W","segment_description":"TAMARACK","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.43711,"start_lon":-120.07751,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-27T16:01:47.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-CAL-4-63.99-E-14E","route":"SR-4","direction":"E","segment_description":"TAMARACK","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.43934,"start_lon":-120.07671,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-05T20:13:49.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-0.65-W-14W","route":"SR-4","direction":"W","segment_description":"BEAR VALLEY","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.4605,"start_lon":-120.0448,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-05T20:01:03.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-0.775-E-15E","route":"SR-4","direction":"E","segment_description":"BEAR VALLEY","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.46095,"start_lon":-120.04283,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-05T20:01:03.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-3.2-E-1","route":"SR-4","direction":"E","segment_description":"MOUNT REBA ROAD - EBBETTS PASS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.48042,"start_lon":-120.01496,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-04-14T19:44:11.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-4.5-E-2","route":"SR-4","direction":"E","segment_description":"EAST END OF LAKE ALPINE - EBBETTS PASS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.48135,"start_lon":-119.99421,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-29T21:33:52.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-2.77-W-15W","route":"SR-4","direction":"W","segment_description":"MOUNT REBA ROAD","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.4816,"start_lon":-120.02152,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-05T20:01:03.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-24.4-W-3","route":"SR-4","direction":"W","segment_description":"RAYMOND MEADOWS - EBBETTS PASS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.58947,"start_lon":-119.78531,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-06T20:08:15.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-29.2-W-4","route":"SR-4","direction":"W","segment_description":"WOLF CREEK - EBBETTS PASS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.63019,"start_lon":-119.72356,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2025-11-21T21:06:29.000Z","valid_until":null,"destination_scope":null},{"id":"ca-d10-chain-controls:10-ALP-4-31.6-W-5","route":"SR-4","direction":"W","segment_description":"JCT HWY 89 - EBBETTS PASS","overall_status":"open","chain_control_severity":0,"chain_control_code":"none","chain_control_raw":"R-0","status_description":"No chain controls are in effect at this time.","start_lat":38.65943,"start_lon":-119.72606,"end_lat":null,"end_lon":null,"type_of_closure":null,"type_of_work":null,"lanes_closed":null,"total_existing_lanes":null,"estimated_delay_minutes":null,"valid_from":"2026-05-29T21:33:52.000Z","valid_until":null,"destination_scope":null}]}]},"_meta":{"request_id":"req_3fa8eb70-3403-4deb-94d8-73be6784f955","response_generated_at":"2026-06-21T15:53:59.102Z","sources":[{"source":"ca-d10-chain-controls","freshness":"healthy","live_eligible":true,"covers_query":true,"source_updated_at":"2026-05-29T21:33:52.000Z","fetched_at":"2026-06-21T15:51:23.294Z"},{"source":"ca-d10-lane-closures","freshness":"healthy","live_eligible":true,"covers_query":true,"source_updated_at":"2026-06-20T13:03:04.000Z","fetched_at":"2026-06-21T15:51:24.629Z"}],"query_coverage":"full","pagination":null}}