Innovative reregulation weirs

Article Abstract:

Timber-crib and labyrinth weirs can effectively correct too slow or too fast water flow from a hydroelectric dam, thus avoiding disruption of marine life downstream. This the Tennessee Valley Authority proved by testing its own designs for a timber-crib weir in the Clinch River in 1984 and a labyrinth weir in the South Fork Holston River in 1991. Labyrinth weirs, though more costly than timber-crib weirs, promote better water aeration and their surface construction prevents their being used as fishing piers. Boats, however, cannot pass over labyrinth weirs as they can over timber-crib weirs.

Research, Environmental aspects, Water resources development, Water resource development, Tennessee, Dam construction, Dams, United States. Tennessee Valley Authority

---

Project object

Article Abstract:

The Power and Reservoir System Model (PRSYM) is an object-oriented software package for optimizing hydroenergy production in river, reservoir, and hydropower systems. PRYSM's data include basin topology, methods for modeling various characteristics of water systems, and operating policies. A model can be tailored to assess specific systems by constructing user-specific object libraries containing solution methods inherent to the system being modeled.

Models, Usage, Software, Hydroelectric power plants, Watersheds, Object-oriented programming, Object oriented programming

---

Re-engineering the Mississippi

Article Abstract:

The Mississippi River Delta is situated in coastal Louisiana and is a major commerce center playing an important role in the U.S. economy. The problem it faces is that it has lost almost 9,00,000 acres of wetland and is heading for a further loss unless it is reengineered.

Mississippi, Analysis, Mississippi River Delta

Similar abstracts:

• Abstracts: Water resources legislation. Water Act to fund multiple projects. Federal R&D in the 105th Congress
• Abstracts: The Pentagon project. Fringe benefits. Houston ship channel project to create marshland in Galveston Bay
• Abstracts: Why the y is so weird. Children of the gun. Dwarf galaxies & starbursts
• Abstracts: Use of prior vaccinations for the development of new vaccines. Naked DNA points way to vaccines
• Abstracts: Omega Watch Corporation: a 30-year relationship of space and time. part 2 McDonnell Douglas Space Systems Company: innovation and experience

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.