What happened August 13, 2023?

Driving back to Maryland from Outerbanks NC, my Garmin Nuvi 2597  announced a crash on I95 and rerouted me because I95 was blocked in both directions. The new rout was 1.5 hours out of my way. Although there was a crash, there never was a serious backup or need to reroute. Why did this happen? If this is not the right forum for asking this question, what is?

Thanks
Jim