City of Austin Performance Report 2014-15
Number of Linear Feet of Stream Channel Repairs Designed
The Stream Restoration Program’s objective is to create a stable stream system that decreases property loss from erosion and increases the beneficial uses of our waterways. The program performs in-house engineering design and sponsors design of CIP projects to alleviate adverse impacts of erosion in Austin’s waterways (creeks). Typical projects include reconstruction of drainage channels, streambank stabilization and slope restoration/revegetation. This performance measure represents the length of stream channel for which project designs are completed in a fiscal year. The designed projects are constructed by the Field Operations Division or CIP contractors depending on the size and complexity of the project.
The calculation method is based on the linear distance along the stream for which construction plans are developed. This distance is measured on scaled engineering drawings along the centerline of channel for the length of the project.
FY 2014-15 Results
The FY 2014-15 goal for this measure was 4,000 linear feet but the department completed design of repairs for 34% of the goal, or 1,345 linear feet.
Assessment of Results
From 2011-2015, the average goal for linear feet of stream channel repairs was approximately 3,760 linear feet. The average annual output during this five year period has been 3,825 linear feet which exceeds the 5-year goal by 2%. In FY 2014-15 the design output was 66% less than the annual goal of 4,000 linear feet. The output was reduced in 2015 due to reallocation of design resources to address urgent needs resulting from the Memorial Day floods and the loss of the Supervising Engineer position for 5 months. Staff spent significant time conducting field reconnaissance and assessing damage after the flood. A number of ongoing projects were delayed while design teams worked on expedited designs to repair stream segments severely damaged in the flood. These repairs tended to be smaller in size than the projects that were in process prior to the flood. In FY 2014-15, staff completed 13 Stream Channel Repair designs, nine of which were less than 100 feet in length.
At the close of FY 2014-15, design was underway for 13 projects totaling 3,535 linear feet, nearly all of which should be complete in Quarter 2 of FY 2015-16. Combined with projects anticipated to begin during 2016, the Department expects to exceed the 2016 goal of 4,000 linear feet by at least 25%.
For more information contact Erick Loucks, Supervising Engineer in the Stream Restoration program, at (512) 974‑2534.