The Pipe Drop Across Structure rule applies in a variety of scenarios.
The following examples show how the Pipe Drop Across Structure rule is applied when a new incoming or outgoing pipe is added to a structure that already has pipes connected to it.
The following illustration shows a junction structure that has two incoming pipes already connected to it on the left side of the structure. When a new incoming pipe is added to the right side of the structure, the pipe cover and slope rule determines the optimal connection elevation for the new incoming pipe.
Example 1: Existing Incoming Pipes with New Incoming Pipe
In the following illustration, the junction structure has two incoming pipes already connected to it on the left side of the structure. A new outgoing pipe is added to the right side of the structure. The pipe cover and slope rule determines the optimal connection elevation for the new outgoing pipe.
Example 2: Existing Incoming Pipes with New Outgoing Pipe
The following illustration shows a junction structure that has two outgoing pipes already connected to it on the left side of the structure. A new incoming pipe is added to the right side of the structure. The pipe cover and slope rule determines the optimal connection elevation for the new incoming pipe.
Example 3: Existing Outgoing Pipes with New Incoming Pipe
The following illustration shows a junction structure that has two outgoing pipes already connected to it on the left side of the structure. A new outgoing pipe is added to the right side of the structure. The pipe cover and slope rule determines the optimal connection elevation for the new outgoing pipe.
Example 4: Existing Outgoing Pipes with New Outgoing Pipe
The following illustration shows a junction structure that has four pipes already connected to it on the left side of the structure. Two of those pipes are incoming pipes, and the other two are outgoing pipes. A new incoming pipe is added to the right side of the structure. The pipe cover and slope rule determines the optimal connection elevation for the new incoming pipe.
Example 5: Existing Incoming and Outgoing Pipes with New Incoming Pipe
The following illustration shows a similar situation with both incoming and outgoing pipes already connected. In this case, a new outgoing pipe is added to the structure. The pipe cover and slope rule determines the optimal connection elevation for the new outgoing pipe.
Example 6: Existing Incoming and Outgoing Pipes with New Outgoing Pipe