Drainage
The table below defines maintenance categories for drainage.
Routine Maintenance | Preventive Maintenance | Major Maintenance |
|---|---|---|
Replacement, repair and installation
of curb, gutter, riprap and underdrain; cleaning, repairing or replacing
culverts, storm sewers, erosion controls; reshaping drainage ditches
and channels. | Removal of debris and siltation from
channels to prevent damage to structures or flooding of roadways.
Repair or replacement of slopes and/or riprap to prevent damage
to structures or embankments. | Constructing new drainage channels
or modification of drainage structures to increase drainage capacity.
Performed only to correct a maintenance or safety problem or to
protect public or private property. |