Changes

===Structural Concrete Panels===

===Structural Concrete Panels===

Trenches where the overlying pavement consists of structural concrete panels supported on each side by concrete footings and rows of modular soil support structures installed on aggregate bases is another configuration. The benefit of this approach is that the native subgrade soil under the portions of the trench below tree pits and between rows of supports does not need to be highly compacted, allowing greater opportunity for drainage via infiltration (see image map within the 'Overview' section of this page).

Trenches where the overlying sidewalk pavement consists of reinforced structural concrete panels is another configuration. Panels are supported on each side by concrete footings and rows of modular soil support structures or structural soil medium, installed on aggregate bases. The benefit of this approach is that the native subgrade soil under the portions of the trench below tree pits and between rows of supports does not need to be highly compacted, allowing greater opportunity for drainage via infiltration. (see image map within the 'Overview' section of this page).

===Conveyance and Overflow===

===Conveyance and Overflow===