Page 255 - Keller Budget FY21

DRAINAGE UTILITY FUND

DRAINAGE UTILITY FUND

DRAINAGE MAINTENANCE DIVISION (400-810-55)

DEPARTMENT DESCRIPTION:
The Drainage Maintenance Division of the Public Works Department is responsible for the repair and maintenance of the storm
water collection and transportation infrastructure in a manner that mitigates flooding and property damage. Revenues for the
services are derived primarily from drainage fees which were established by City Ordinance No. 638, adopted November 20,
1990.

DEPARTMENT/DIVISION GOALS:
1. Continuously review work processes to determine efficiency improvements and cost reduction opportunities.
2. Comply with Phase II of the National Pollutant Discharge Elimination System (NPDES) program (MS4) requirements.
3. Maintain bridges and culverts, ditches, channels and other related infrastructure to reduce restrictions and erosion.
4. Provide channel preventative maintenance using herbicide, mowing, debris removal and erosion repair.
5. Inspect specific locations after significant rain events for stoppages or damage, clear and/or repair.

DEPARTMENT/DIVISION OBJECTIVES:
1. Expand divisional use of the LUCITY work order database system.
2. Correct flow restrictions and erosion damage in drainage channels, creeks, flumes and ditches.
3. Inspect 10% of system structures and outfalls, clean and repair as needed.
4. Sweep residential streets per MS4 storm water program to reduce contaminant loading.
5. Create a GIS map of all drainage easements in the City.

SERVICE LEVEL ANALYSIS:
FY 2020-21
FY 2018-19 FY 2019-20 FY 2019-20 Adopted
SERVICES PROVIDED Actual Budget YE Proj. Budget
Miles of drainage channels (not creeks) 11.3 11.3 11.3 11.3
Acres of channels in mowing program 42 42 42 42
Miles of roadside ditches 118 118 118 118
Miles of drainage pipe system 91.5 91.5 91.8 92.0
Debris swept from streets (cubic yards) 486 500 650 600
# Drainage structures (inlets, manholes…) 3,414 3,430 3,432 3,445

PERFORMANCE INDICATORS
% of inlets/culverts cleaned annually 10 10 10 10
% of channels mowed 8x annually 100 100 100 100
% of channels herbicide treated annually 100 100 100 100

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