Changes

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

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

Construction Steps:<br>

'''Construction Steps:'''<br>

#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.

#Fit a metal, domed grate to the overflow.<br>

#Fit a metal, domed grate to the overflow.<br>

Key Inspection Points:<br>

'''Key Inspection Points:'''<br>

*Overflow drain matches design specifications.

*Overflow drain matches design specifications.

*Overflow pit is positioned at the maximum water surface elevation of the practice, as per the contract documents.

*Overflow pit is positioned at the maximum water surface elevation of the practice, as per the contract documents.

*Overflow grates located in high-traffic areas are screwed on or equipped with locks.<br>

*Overflow grates located in high-traffic areas are screwed on or equipped with locks.<br>

Mistakes to Avoid:<br>

'''Mistakes to Avoid:'''<br>

*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.