Missouri St. Louis StreamStats
StreamStats for St. Louis, Missouri was developed in cooperation with the Metropolitan St. Louis Sewer District.
A StreamStats application developed for the St. Louis metro area is the first to incorporate storm drain delineation functionality. This functionality utilizes lidar-based elevation data at a greater resolution than most other StreamStats applications. A checkbox in the left panel allows users to choose between delineating based only on surface contributing basins, or delineations that include surface contributing basins and the connected storm drain system. Additional details regarding development of this application can be found in the first report listed below. Regression equations for estimating urban peak flows with annual exceedance probabilities of 50, 20, 10, 4, 2, 1 and 0.2 percent. These peak flows have recurrence intervals of 2, 5, 10, 25, 50, 100 and 500 years, respectively. Because these urban peakflow regression equations were not developed using streamgages which incorporated storm drain delineations, caution should be used when applying results to basins that include storm drain delineations. Additional details regarding these regression equations can be found in the second report listed below
- Southard, R.E., Haluska, T., Richards, J.M., Ellis, J.T., Dartiguenave, C., and Djokic, D., 2020, Missouri StreamStats—St. Louis County and the City of St. Louis urban application: U.S. Geological Survey Scientific Investigations Report 2020–5040, 27 p.,
- Southard, R.E., 2010, Estimating the magnitude and frequency of floods in urban basins in Missouri: U.S. Geological Survey Scientific Investigations Report 2010-5073, 27 p.
Click on this link to obtain general information on the St. Louis application, as well as specific sources and computation methods for basin characteristics.
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Missouri StreamStats—St. Louis County and the City of St. Louis urban application
Estimation of magnitude and frequency of floods in urban basins in Missouri
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Missouri StreamStats—St. Louis County and the City of St. Louis urban application
To address a major limitation of the functionality of the Missouri statewide StreamStats application in the urban areas of St. Louis County and the City of St. Louis, Missouri, the U.S. Geological Survey, in cooperation with the Metropolitan St. Louis Sewer District, defined watershed boundaries and hydrography for the study area using high-resolution 3-meter digital elevation data derived from liAuthorsRodney E. Southard, Tana Haluska, Joseph M. Richards, Jarrett T. Ellis, Christine Dartiguenave, Dean DjokicEstimation of magnitude and frequency of floods in urban basins in Missouri
Streamgage flood-frequency analyses were done for 35 streamgages on urban streams in and adjacent to Missouri for estimation of the magnitude and frequency of floods in urban areas of Missouri. A log-Pearson Type-III distribution was fitted to the annual series of peak flow data retrieved from the U.S. Geological Survey National Water Information System. For this report, the flood frequency estimaAuthorsRodney E. Southard - Partners