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Scientific Investigations Report 2012–5268

Prepared in cooperation with U.S. Army Maneuver Support Center at the Fort Leonard Wood Military Reservation

Hydrologic and Sediment Data Collected From Selected Basins at the Fort Leonard Wood Military Reservation, Missouri—2010–11

By Joseph M. Richards, Paul H. Rydlund, and Miya N. Barr

Thumbnail of and link to report PDF (5.08 MB)Abstract

Commercial and residential development within a basin often increases the amount of impervious area, which changes the natural hydrologic response to storm events by increasing runoff. Land development and disturbance combined with increased runoff from impervious areas potentially can increase sediment transport. At the Fort Leonard Wood Military Reservation in Missouri, there has been an increase in population and construction activities in the recent past, which has initiated an assessment of the hydrology in selected basins. From April 2010 to December 2011, the U.S. Geological Survey, in cooperation with the U.S. Army Maneuver Support Center at the Fort Leonard Wood Military Reservation, collected hydrologic and suspended-sediment concentration data in six basins at Fort Leonard Wood.

Storm-sediment concentration, load, and yield varied from basin to basin and from storm to storm. In general, storm-sediment yield, in pounds per square mile per minute, was greatest from Ballard Hollow tributary (06928410) and Dry Creek (06930250), and monthly storm-sediment yield, in tons per square mile, estimates were largest in Ballard Hollow tributary (06928410), East Gate Hollow tributary (06930058), and Dry Creek (06930250).

Sediment samples, collected at nine sites, primarily were collected using automatic samplers and augmented with equal-width-increment cross-sectional samples and manually collected samples when necessary. Storm-sediment load and yield were computed from discharge and suspended-sediment concentration data. Monthly storm-sediment yields also were estimated from the total storm discharge and the mean suspended-sediment concentration at each given site.

First posted January 4, 2013

For additional information contact:
Director, Missouri Water Science Center
U.S. Geological Survey
1400 Independence Road
Rolla, MO 65401
http://mo.water.usgs.gov

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Suggested citation:

Richards, J.M., Rydlund, P.H., and Barr, M.N., 2012, Hydrologic and sediment data collected from selected basins at the Fort Leonard Wood Military Reservation, Missouri—2010–11: U.S. Geological Survey Scientific Investigations Report 2012–5268, 23 p.



Contents

Abstract

Introduction

Data Collection Equipment and Methods

Sample Site Descriptions and Storm-Sediment Load

Sediment Yield Estimates

Summary

References Cited


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