Documents

RocLab is a software program for determining rock mass strength parameters, based on the latest version of the generalized Hoek-Brown failure criterion. RocLab provides a simple and intuitive implementation of the Hoek-Brown failure criterion, allowing users to easily obtain reliable estimates of rock mass properties and to visualize the effects of changing rock mass parameters on the failure envelopes.

This assessment provides background information on concepts related to environmental sound.

This report summarizes the meteorological, upper-air (SoDAR¹), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), ozone (O₃), and particulate matter (PM) data collected at the Resolution Copper Project near Superior, Arizona, for the second quarter, April 1 through June 30, 2017.

This Modeling Report includes a description of the methods and datasets used in the air quality modeling analyses to estimate the Resolution Project’s air quality impacts relative to the applicable Ambient Air Quality Standards (AAQS) for criteria pollutants and to Air Quality Related Values in the near-field domain.

The Gila-Pinal Scenic Road was designated a scenic road on June 20, 1986, by the Arizona Department of Transportation. The route travels throughout the Sonoran Desert life zone at the desert floor and moves upward through four biotic communities.

Superior Pavement Assessment Study

Fact sheet including operational highlights, economic impacts, milestones, and production statistics.

This report attempts to answer these questions for the specific categories of construction, home appliances, and building equipment.

The objective of Visual Resource Management is to manage public lands in a manner which will protect the quality of the scenic (visual) values of these lands.

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Materials that meet the criteria of Freedom of Information Act exemptions are not posted on this website. Culturally sensitive materials not posted here fall under this criteria.