General

Legacy ID

Washington

Available data:

Crash
Roadway Inventory
Traffic Volume
Curve and Grade
Interchange/Ramp
Years Of Data Available: 1993-1996, 1999-2018
Average Crashes/Year: 43,000
Roadway Mileage: 7,200

Michigan

Available data:

Crash
Roadway Inventory
Traffic Volume
Interchange/Ramp
Guardrail/Barrier
Years Of Data Available: 1985-1997
Average Crashes/Year: 145,000
Roadway Mileage: 9,500

* Michigan data were last entered in HSIS in 1997. Since these data are not current, it is suggested that the user consider using other HSIS states if possible.

Utah

Available data:

Crash
Roadway Inventory
Traffic Volume
Curve and Grade
Years Of Data Available: 1985-2000
Average Crashes/Year: 46,000
Roadway Mileage: 9,300

* Utah data were last entered in HSIS in 2000. Since these data are not current, it is suggested that the user consider using other HSIS states if possible.