Stormwater Performance Charts

Monthly Target amounts are a good indicator of production but can vary during the holiday season, inclement weather conditions and employee vacancies. Monthly data is also impacted by downtime equipment failures, temporary departmental priority shifts and short term supplemental contract services. The Year to Date average (YTD) provides a better indication of measuring production against established performance measures.


There are 49 active capital projects that are in the planning and development, design or construction phase. The number of projects varies each year according to approved funding levels. Stormwater projects are designed and built to enhance public safety by reducing property damage and roadway flooding.

There are approximately 230 miles of stormwater ditch systems within the City. The performance target for inspection and cleaning is 32.4 miles per year (2.7 miles per month). Debris, sediment, and vegetation are removed and transported to a facility for processing. Ditches are cleaned, graded and sodded to reduce flooding and enhance water quality.

There are 31,580 Inlet structures within the City. The performance target for inspection and cleaning is 4,511 per year (376 per month). Debris, sediment, and vegetation are removed and transported to a facility for processing. Additionally, the structure type, size, location and its condition are documented to determine necessary repair and restoration projects. This work is done to reduce flooding and enhance water quality.

The Transportation and Stormwater Services Department has an inventory of over 900 outfalls with approximately 380 of those listed as “major.” A Major outfall is defined by the NPDES MS4 permit as a 36” in diameter or larger pipe, or an outfall that drains an area larger the 50 acres. The maintenance goal for outfalls is 78 per month.

There are approximately 670 miles of stormwater piping within the City. The performance target for inspection and cleaning is 95.71 miles per year (7.97 miles per month). Debris, sediment, and vegetation are removed and transported to a processing facility. Additionally, the culvert type, size, location and its condition are documented. This work is done to reduce flooding and identify necessary repair and restoration projects.

Street sweeping services are delivered every two months for residential and business areas with curb and gutter type streets. Additionally, the City’s growing number of special events, parades, and runs, add a significant amount of streets each year that require sweeping. The performance target for the residential street sweeping program is a 60-day cycle and is tied to annual funding levels. Seven street sweepers are used to remove debris, sediment, and vegetation to prevent discharge into the City’s waterways. Last year over 5,700 tons of pollutants were removed and transported to a facility for processing. Street sweeping is done to keep streets and stormwater systems clean, reduce flooding and enhance water quality. You can access the street sweeping routes on the City’s web page to determine when sweeping will occur in your area.