Dry Dams in the Desert: Chasing Land Subsidence and Earth Fissures with Geophysics
Homogenous embankment dam flood retention structures (FRSs) were built throughout central Arizona desert basins in the mid-twentieth century to protect mostly agricultural lands and military installations...
Avoiding Impacts of Collapsed Mines on Railways: A Multidisciplinary Geophysical Detective Approach
The presence of abandoned mine workings can pose a significant risk to the use and development of surface structures above them, including railway lines. Typically, the adverse and often sudden effects...
Proactive Management of Landslide- and Rockfall-Prone Slopes: A New Program for Federal Land Management Agencies
Most people realize that the nation's transportation infrastructure is aging faster than federal, state, and local governments can manage with traditional methods. In fact, a national and international...
Water Wise
Located in a semiarid region, the town of Castle Rock, Colorado, has a goal to reduce its reliance on nonrenewable groundwater sources. A recently completed pipeline project enables Castle Rock to tap...
Remote Mapping in Alaska's Wilderness: Accessing Resources in the Last Frontier
The rich, natural resources of Alaska have long been the focus of many pioneers seeking fortune in the Last Frontier. As captured in historical images of dedicated Klondike Gold Rush miners seeking their...
Stabilizing Variable and Sloping Ground: Achieving Innovation Through Adaptation
We all know the high price of land development these days, so it's more important than ever for owners and their designers to maximize available land area. Occasionally, this demand is constrained by topography...
Sinkhole Investigation and Grouting: Novel Recommendations for a Pipeline Right-of-Way
In 2009, numerous sinkholes developed within and adjacent to a 400-ft-long section of high-pressure, petroleum pipeline right-of-way that crosses under a local creek in Plymouth Meeting,...
Soil Mixing Innovation for Land Restoration
Uncertainties in Evaluating Mine Subsidence
Designing for Potential Mine Subsidence at a Disposal Facility in Appalachia
Domestic-Well Water-Quality Data and Reports for the Environmental Public Health Tracking Network: USGS and CDC Collaboration
The mission of the Environmental Public Health Tracking (EPHT) Program is to provide information from a nationwide network of integrated health and environmental data that drive actions...
Evaluation of Satellite-Based Impervious Surface Data for the Mid-Atlantic Region Using an Independently Collected, High-Resolution Validation Database
Satellite-based estimates of impervious surfaces are being produced for the entire United States as part of the U.S. Geological Survey's (USGS) Landsat-based National Land Cover Database...
Minimizing the Cost of Maintaining Supply Reliability Through the Use of Water Transfers
Large Scale Sediment Source Identification and Load Estimation Designed to Inform the TMDL Process
Effects of Prior Rainfall and Storm Variables on Curve Number Rainfall-Runoff
Plot and Small Watershed Scale Modeling of Infiltration and Runoff on a Semiarid Grassland Using Distributed Green and Ampt Infiltration Parameters
Headcut Analysis for Off-Channel Gravel Pits in Arid Environments
The study focuses on a large gravel pit located adjacent to the Santa Cruz River between the confluences with the Rillito and Canada del Oro rivers in Tucson, Arizona. These gravel pits...
Liquid Assets
Educational Facilities and the fountains of a new plaza are making good use of water from a system that is remediating contaminated groundwater in Wichita, Kansas....
Evaluating Seepage Losses and Liner Performance at Animal Waste Lagoons using Water Balance Methods
This chapter discusses techniques for evaluating seepage losses from existing animal waste lagoons under field conditions....
Tapping the Desert
As part of an effort to augment the limited supply of freshwater in El Paso, Texas, engineers and planners are eyeing a new source: desalinated water pumped from beneath the desert floor....
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