Crash causing major delays on I-65 in Cullman County Crash causing major delays on I-65 in Cullman County (Source: kauz) By WAFF 48 Digital Staff | April 22, 2021 at 8:38 PM CDT - Updated April 22 at 8:39 PM CULLMAN CO., Ala. (WAFF) - If youâre driving down I-65 in Cullman County, you may need to reroute. Officials with the Cullman County Sheriffâs Office and ALGO confirm a major crash occurred at I-65 NB just north of exit 299 near a rest stop. The crash happened just before 5 p.m. and crews are still working to clear the scene. Officials advise motorists to avoid the area and reroute if possible.