A concrete tank includes a dome roof formed of concrete at least partially cast in place and a lid. The dome roof has an access opening extending through the dome roof in a vertical direction. The lid is positioned to cover the access opening with a portion of an inner lid surface overlapping a portion of an outer dome roof surface along the vertical direction. A lid bearing element is disposed between the inner lid surface and the outer dome roof surface along the vertical direction.

A curb system for a concrete container is disclosed. The curb system includes a base slab having a planar mounting surface and a wall positioned on the planar mounting surface. An inner curb is positioned on the planar mounting surface adjacent to an inner surface of the wall, and an outer curb is positioned on the planar mounting surface adjacent to an outer surface of the wall. A first expandable waterstop is positioned between the inner curb and the inner surface of the wall. A first waterstop is positioned between the inner curb and the planar mounting surface.

A curb system for a concrete container is disclosed. The curb system includes a base slab having a planar mounting surface and a wall positioned on the planar mounting surface. An inner curb is positioned on the planar mounting surface adjacent to an inner surface of the wall, and an outer curb is positioned on the planar mounting surface adjacent to an outer surface of the wall. A first expandable waterstop is positioned between the inner curb and the inner surface of the wall. A first waterstop is positioned between the inner curb and the planar mounting surface.