The underground utility notification center for Tennessee.  
Using our service, excavators are able to notify operators of underground facilities of proposed excavations, to request that the underground facilities be marked before they dig. One easy phone call to 811 starts the process of having your underground utility lines marked for free!

Buried utilities could exist just about anywhere you dig. Homeowners and contractors can prevent damage to underground utilities and prevent service interruptions by calling TN811 at least three working days prior to excavating. It's free, easy, and it's the law!