Building A Deck Over A Drain Field

The biggest issue that can arise from construction near a drain field is the damage caused by heavy construction equipment.

Building a deck over a drain field.

However if a permanent structure is built over a drainfield it can restrict the oxygen flow into the soil and restrict the evapotranspiration process. The lack of regular pumping of your tank will be a costly mistake which can also affect you again when you sell. If you have a deck or patio with no access to the tank you may have to rip out the structure wasting all the money spent to build it. Also the soil can compact around the trenches which may not allow for percolation.

Building near a drain field leach field if a drain field is damaged it can cost a lot more to replace. A big risk to building over the drainfield is causing the lines to collapse. If constructing over field lines it is imperative that no foundation is dug. Building over field lines.

Usually decks are allowed over drainfields as long as the piers of the deck are at least two feet from the drainfield trenches and as long as the deck footings do not support a roof. Here are three things to know in advance. You may run into expensive problems a few years down the road. Building a deck over a septic tank it is usually not a good idea to build a deck near or on top of a septic tank.

If you have a septic system and want to add a deck to your house or build a shed in your backyard you should consider the consequences carefully. Can you build a deck over a septic field. Most zoning ordinances will require that you maintain at least a 5 setback from an underground septic system.