The road measures 10.83 miles long and would take a car obeying speed limits 17 minutes to travel its length.
The B158 is a B Road and is located in the Zone 1 Highways Region.
This is a true long-distance route, journeying through numerous towns like HATFIELD, Brookmans Park, Essendon, Howe Green, Little Berkhamsted, HERTFORD, Chapmore End, Westmill, and Tonwell.
The road is located entirely within Hertfordshire.