DANIEL ERNESTO MEDINA
Engineers in Silver Spring, MD

License number
Pennsylvania PE048204E
Category
Engineers
Type
Professional Engineer
Address
Address 2
Silver Spring, MD 20912
Pennsylvania

Professional information

Daniel Medina Photo 1

Utility Line Bedding For Storm Water Management And Storm Water Management System And Method

US Patent:
7029201, Apr 18, 2006
Filed:
Aug 28, 2003
Appl. No.:
10/651320
Inventors:
Thomas M. McCormick - Delray Beach FL, US
Daniel E. Medina - Takoma Park MD, US
Assignee:
CH2M Hill, Inc. - Englewood CO
International Classification:
E02B 11/00
US Classification:
405 50, 405 36
Abstract:
A water retaining and dissipating bedding for a utility line consists of an elongate trench formed in the earth. A filter fabric wrap is provided lining a lengthwise segment of the trench, with a lengthwise segment having a select length. A first select depth of a porous particulate material resting on a trench bottom underlies a non-perforated utility line being installed and supports the non-perforated utility line in the lengthwise segment. A second select depth of porous particulate material overlies the non-perforated utility line in the lengthwise segment. The length of the lengthwise segment, the first select depth and the second select depth are selected to store a select volume of water. A water supply may be provided in liquid communication with the porous particulate material. The water supply may be a bioretention facility for capturing storm water run-off.


Daniel Medina Photo 2

Method And System For Water Flow Analysis

US Patent:
2005007, Mar 31, 2005
Filed:
Sep 29, 2003
Appl. No.:
10/675911
Inventors:
Avinash Patwardhan - West Palm Beach FL, US
Patrick Graham - Vancouver, CA
Jared Thorpe - Gainesville FL, US
Daniel Medina - Takoma Park MD, US
International Classification:
G06G007/48
US Classification:
703009000
Abstract:
A method and system for modeling water flow of a watershed restoration project. The modeling system allows a user to create a graphical representation of the different areas of a development site design. The graphical representation shows the water flows between the different areas. The user may also specify the attributes of each area, such as rate of infiltration, runoff coefficient, size, rate of evapotranspiration, and so on. The modeling system can simulate the impact of rainfall on the development design. The simulation determines the inflow of water to each area and determines the outflow of water for each area. The results of this simulation can be used to evaluate the development design and adjust the design to achieve the desired cost-benefit balance of the watershed protection criteria of choice.