Once the tee box is graded and drained, the root-zone mix is added at a depth of 6". The particular mix that we chose is made up of over 30% organic material. This mix, while draining too slowly for greens construction is perfect for a tee box. Not too wet, but very little hand-watering required.
Aside from tee construction, we have also been working on the 12th fairway bunker complex.
In the foreground of the photo below, you can see drain pipes. Those pipes were where the old bunkers were located prior to the project.
Another shot of the new bunker versus the location of the old bunkers.
Shaping the backside ridge-line that will allow the new bunkers to be visible from the tee.
Close-up of the new bunkers "roughed" in.