The Scope of Underflow and Overflow Dams | MyPaperHub

An underflow dam unit provides a barricade to pollutants suspended in runoff water which otherwise finds a way through streets and streams. They use leaning culverts to allow water which is moving downstream to run off while keeping the spill well contained. The dam unit includes a dam sandwiched between limiting side walls above the dam. The baffle’s lower limit extends below the height of the dam forming a waterway between the baffle and the dam. Floating pollutants become ensnared against the baffle while hydraulic pressure allows subsurface stream water to flow the barrier channel and over the dam.

Overflow dams carry water discharge over their crests and are made of materials not easily eroded by the discharges, therefore, allowing water to flow over from its top and afterward down to its front face. The dam sometimes acts as an overflow spillway. They consist of a mass so heavy that the reservoir's water cannot push the dam downstream (thicker at the base than the top). Horizontal pressure on the dam is exerted as the water becomes deeper. Overflow spillways are constructed where there is intense pressure as compared to underflow spillways which cannot withstand massive pressure on the dam tipping it over.

 

 

 

 

REFERENCES

Conrad J. D. (1997) Geomorphic Effects of Overflow Dams. Brookfield, VT: Ashgate

Kyle E. J. (1999) The Free Flow and Submergence Of Underflow Dams. U.S. Geological Survey

Additional articles

Identity Theft Information: Things we just learned!

American people making shopping easy through online shopping, use of credit cards, filing taxes online and even online banking in some cases. However, one major ethical issue arising with the increased use of information technology is the issue of...Identity-Theft-Information:-Things-we-just-learned! …

Read Article
The Boko Haram - Agenda, Mission and Historical Foundations

The Boko Haram Terrorism is a global issue that has been in existence for some centuries now. It can be traced to as far as the 1880s when the first acts of a group of terrorists from Russia were felt. The group of Russians who terrorized pe...The-Boko-Haram---Agenda,-Mission-and-Historical-Foundations …

Read Article
Teaching Gender Roles

Teaching Gender Roles The socially constructed stereotypical gender roles are sometimes divisive and other times are more or less harmful to both men and women in the society. The socially constructed belief separate the sexes which may be disa...Teaching-Gender-Roles …

Read Article
Let's give your paper the attention it deserves