Final answer:
The IDBM plan for the Colorado River is part of several arrangements governing how water is shared among states, not a single specified plan. The Hoover Dam has a capacity of 2,080 MW with an annual production of 4.2 TWh. American Rivers criticizes the dam for environmental impacts, in contrast to the USBR's view of the dam as a vital resource.
Step-by-step explanation:
The designated IDBM plan for the Colorado River, often referred to as the 'Interim Guidelines' or 'Interstate water management plan', is not explicitly known as the IDBM. This plan is part of the management strategies that include a series of provisions and agreements, such as the Colorado River Compact, which governs the allocation of water rights among the seven states in the Colorado River Basin and Mexico. These agreements outline how water is shared, the priority of water rights, and how shortage conditions are managed.
American Rivers, an advocacy group, has raised concerns about the impact of infrastructure such as the Hoover Dam on the ecology of the Colorado River. While the U.S. Bureau of Reclamation (USBR) champions the dam as a critical source of water and hydroelectric power, American Rivers critiques it for altering the river's natural flow, affecting wildlife habitats, and contributing to the declining health of the river's ecosystem.
Regarding Hoover Dam's specifics, this massive structure has an installed capacity of 2,080 MW and an annual production of 4.2 TWh. To calculate its capacity factor, which is a measure of how often an electric generator runs for a specific period, we would use these figures.