Changes

[[Overflow|Overflows]] are features of inline facilities and convey larger storm events out of the LID feature.

[[Overflow|Overflows]] are features of inline facilities and convey larger storm events out of the LID feature.

'''Construction Steps:'''

'''Construction Steps:'''

#Connect the overflow drain to the underdrain.

#Connect the overflow drain to the underdrain.

#Install overflow pit to grade at the location specified in the contract documents.

#Install overflow pit to grade at the location specified in the contract documents.

'''Key Inspection Points:'''

'''Key Inspection Points:'''

'''Mistakes to Avoid:'''

'''Mistakes to Avoid:'''

*Backflows – ensure that backflows are avoided by confirming that inlet and overflow elevations match design specifications with surveys.

*Backflows: Ensure that backflows are avoided by confirming that inlet and overflow elevations match design specifications with surveys.

*Incorrect sequencing – install overflow drain prior to backfilling with granular material and engineered soil.

*Incorrect sequencing: Install overflow drain prior to backfilling with granular material and engineered soil.

*Incorrect grate material – avoid using plastic overflow grates due to breakages and UV degradation.

*Incorrect grate material: Avoid using plastic overflow grates due to breakages and UV degradation.

<gallery mode="packed" widths=300px heights=300px>

<gallery mode="packed" widths=300px heights=300px>

overflow-pipe-install.jpg | Overflow pipe installed to an underdrain T-connection.

overflow-pipe-install.jpg | Overflow pipe installed to an underdrain T-connection. (Photo Source: CVC, 2010)

overflow-plastic-cap.jpg | Overflow installed with a plastic cap. Note that the use of plastic grates is discouraged.

overflow-plastic-cap.jpg | Overflow installed with a plastic cap. Note that the use of plastic grates is discouraged. (Photo Source: CVC, 2012)

</gallery>

</gallery>