Types of Foundations
There are six types of foundations. Table 9-2 lists the foundations and indicates which type of foundation is used with each type of support.
Type of Support | Type of Foundation | |||||
|---|---|---|---|---|---|---|
V-Loc | Wedge Anchor | Driven | Concrete | Embedded | Temporary | |
Thin-Wall Steel Tube | Type 1 | Type 2 | No | No | No | No |
Thin-Wall Multiple (coathanger) | Type 1 | No | No | No | No | No |
Wing Channel | No | No | Type 3 | No | No | No |
Powdercoat Steel (constant radius) | No | No | No | Type 4 | No | No |
Recycled Rubber | No | No | No | Type 4 | No | No |
4 x 4 Wood | No | No | No | No | Type 5 | No |
Plastic Drum | No | No | No | No | No | Type 6 |
Figure 9-10 illustrates the orientation of the supports/anchors relative to the direction of traffic. Where a wedge is used, it is installed on the side of the support nearest the direction of traffic.
Figure 9-10. Orientation of Supports/Anchors for Single/Double Mailbox Installations