Completed Projects
Urban Pond #4
a component of the Annette Hise Jones Urban Pond System in the Rio Rancho Urban Watershed
How it Works
Urban Pond #4 functions similar to a large bathtub. Wide-open faucet inflow (for the 100-year design storm, the inflow lasts about three hours, with a peak inflow of 450 cfs). Small drain hole (for the 100-year design storm, the outflow lasts about five days, with a peak dicharge of 5 cfs). Stored water volume is about 34 acre-feet. Sediment and debris are left behind.
What It Does
Flood Control
The facility meets New Mexico Dam Safety Design criteria and is permitted by State Engineer File No. 4595.
Sotrm water runoff is prevented from flooding into Corrales.
Runoff up to the 100-year storm event (defined as a 1% probability of occurring in any given year) is detained and slowly released.
The flow rate is reduced from 450 cubic feet per second to five curbic feet per second.
Runoff is slowly released into the Corrales Main Canal at five cubic feet per second by permit with the Middle Rio Grande Conservancy District.
Stormwater Quality
Floating debris and trash are collected in Urband Pond #4 and Urban Pond #5.
Runoff is detained for an extended time in Urband Pond #4, allowing sediement to settle and reducing other pollutants.
An oil/water separator traps any oils in the discharge from Urban Pond #5 to the Middle Rio Grande Conservancy District's Corrales Main Canal.
An engineered earthen liner (seepage control blanket controls percolation through the bottom of the pond).
The detention complies with separation requirements from domestic wells.
NOTES:
- one cubic foot per second (cfs) equals 4, 488 gallons per minute flow
- one acre-foot equals the volume to cover one acre with water one foot deep.
Bonus Benefits
Recreation & Multiple-Use
The soil cement emergency spillway doubles as an integral component of the boundary bike path.
The site serves as an undeveloped, primitive open-space park.
Education
Located adjacent to Urban Pond #5 along Loma Larga Road in Corrales and mounted on a concrete structure, two 2-foot by 3-foot sign panels describe the system history and operation.
Permanent survey control monuments are installed for public use and to monitor pond performance.
Annette Hise Jones Urban Pond System
in recognition of Mrs. Annette Hise Jones' Spirit of Service, the Urband Pond System was dedicated in her honor on June 19, 2001.
Urban Pond #4 Project Data
constructed through a joint public/private partnership with Trinity Estates Subdivision, saving SSCAFCA taxpayers an estimated $750,000.
SSCAFCA: $325,000
Land Development Inc. (Trinity Estates Subdivision): $375,000, plus land
Construction Date: 1999
Engineer: ASCG Incorporated of New Mexico
Contractor: Joiner Construction Co., Inc.
Southern Sandoval County Flood Control Authority
Chairman: William "Dub" Yarbrough
Directors: John Chaney, Jim Dorn, Bill Joiner and Guy McDowell
Executive Director: David Stoliker
