This manual presents fundamental principles underlying the design and construction of earth and rock-fill dams. The general principles presented herein are also applicable to the design and construction of earth levees.
We, the U.S. Fish and Wildlife Service (Service), designate revised critical habitat for the southwestern willow flycatcher (Empidonax traillii extimus) (flycatcher) under the Endangered Species Act.
Proponents of land-use activities are responsible for determining potential impacts to raptors of those activities. Appropriate management strategies for conservation and restoration of raptor populations and their habitats associated with the proposed actions should be devised.
The Arizona National Scenic Trail (Arizona Trail) stretches over 800 miles from the U.S. border with Mexico to Utah, connecting deserts, mountains, canyons, wilderness, history, communities and people.
Austrian fieldcress is a very competitive and persistent perennial that typically grows in wet soil. It spreads primarily by reproducing vegetatively through creeping roots, but it can also be distributed by seed and detached root fragments.
This Conceptual Mitigation Plan introduces the suite of potential mitigation elements that Resolution will use to comply with the 2008 Mitigation Rule.
This memorandum provides a summary of relevant state regulations and guidelines for assessing seismic hazard and estimating design ground motions as well as a summary assessment and any review comments pertaining to the objectives listed above.
