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Siphon-Infiltration Trenches for Riparian and Water Quality Improvement

Award Information
Agency: Department of Agriculture
Branch: N/A
Contract: 2001-33610-10357
Agency Tracking Number: 2001-00215
Amount: $69,999.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2001
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
6020 Academy NE, Suite 100
Albuquerque, NM 87109
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Mark Ankeny
 (505) 822-9400
Business Contact
 Mark Burkhard
Title: Chief Financial Officer
Phone: (505) 822-9400
Research Institution

We have developed a novel siphon-infiltration trench system to mange water and sediment budgets in riparian systems. We have demonstrated in the laboratory and developed a numerical model showing the three hydrologically-distinct flow regimes in a infiltrating siphon system: 1) infiltrating flow at low-flow rates, 2) cycling outflow at intermediate-flow rates, and 3) constant outflow at high-flow rates. These flow regimes are dependent upon infiltration gallery design, soil hydraulic conductivity, and rainfall intensity. Part of the water entering the infiltration trench infiltrates into the soil, while part of the incoming water is periodically flushed out by the nonliner flow behavior of the siphon. The coupled behavior of the infiltration trench and siphon results in the system being self-cleaning. Stormwater or overland flow can be captured and injected into a modified infiltration gallery attached to a siphon and emplaced adjacent to a stream or arroyo bank. This injected soil water can be used for streamside vegetation, surface-water treatment, riparian restoration, bank stabilization or other purpose. The design is simple, low-cost and self-cleaning.

* Information listed above is at the time of submission. *

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