Flood Control and Drainage
NMDOT, Drainage Report and Design Drainage Improvements Located on U.S. 64 at Potter and Slane Canyons, Near Bloomfield, NM
The project consisted of the analyses and design of two very large erosion control structures located at the large culvert outfalls of Potter and Slane Canyons at the downstream side of US 64. Major erosion had occurred and the adjacent properties and highway embankments were in need of protection from future erosion. Meetings were conducted with adjacent property owners in order to understand their concerns and learn of their experiences with flooding and erosion near their properties. Mr. Stovall developed the hydrologic, hydraulic and sediment transport analyses which included development of AHYMO_97 hydrologic models to determine the design hydrographs and determine the sediment transport capacities of the arroyo reaches upstream and downstream of the culverts.
HEC-RAS hydraulic models were used to simulate storm runoff velocities, flow depths and other hydraulic results necessary to compute predicted bed degradation and scour depths to aid in the design of the erosion control remediation structure(s) for each watercourse. Design plans were prepared for each watercourse and a design analysis report was prepared that summarized the analyses, assumptions and computer models.
Before: Massive erosion at outfall of 12 ft. dia. CMC's at Slane Canyon and US 64
After: Smith designed the energy dissipation and erosion protection structures for NMDOT, functioning well after numerous floods
Drainage Study and Design, South Eubank Storm Drain Phases 1, 2, and 3, Albuquerque, NM
Smith produced the Drainage Master Plan for this 800 plus acre watershed using the AHYMO hydrologic program. The study investigated several options for flood control including the final design which modeled a 40 acre-foot joint-use detention basin. The drainage study included conceptual designs for the storm drain system as well as cost estimates for the construction of these improvements. The study resulted in the construction of Phases 1 through 4 with an estimated cost of over $7,500,000. Smith provided the design of approximately 14,000 linear feet of RCP storm drain ranging in size from 18-inch connector pipe to 108-inch trunk line. Phase 1 included a 40 acre-feet detention basin, which is a joint use facility (soccer fields) with the Parks department. This basin was designed as a surge basin with a 108-inch diameter inflow pipe and a 60-inch outflow pipe with a metering plate. The system is designed to surge high flows into the detention basin through a pyramidal grate measuring 12' x 12' at the base while allowing low flows to by-pass the park and remain within the pipe system. The project involved coordination with several entities including APS, SNL, DOE, KAFB, the State Engineer, COA Parks and General Services, NMED, US West, PNM, and the Gas Company of New Mexico.
Irrigation Diversion Structure on the Rio Embudo, Along NM 75 near the Village of Dixon, NM.
The project consisted of the analyses and re-design of an existing irrigation diversion dam that also acts as a grade control structure on a perennial stream, Rio Embudo on NM 75. The existing structure had partially failed and did not divert an adequate water supply to the adjacent irrigation canal head works due to continued degradation and failure of the existing structure. The analyses consisted of modeling the structure hydraulics for low and high flows with the HEC-RAS Program. A large non-standard gabion structure was designed to divert very low flows to the irrigation head works, while passing high flows to the main channel.
The wood blocks are scale models of gabions of various sizes designed to stabilize the Rio Embudo stream bed from further degradation and divert water into an adjacent irrigation ditch. Subsequently, Smith developed construction plans for the proposed structure.
Smith Engineers prepared a scale model of the gabions to assist in design of the project
Manzano Mesa and Comanche Community Parks, Albuquerque, NM
Smith provided engineering design services for this 46-acre park. The public involvement process included a community preference survey, neighborhood meetings, steering committee meetings, and public hearings. The Master Development Plan for the park includes trails, a multi-generational community center, a baseball and softball complex, soccer fields, tennis courts, sand volleyball courts, basketball courts, playground areas, picnic shelters, pedestrian/bicycle paths, and design guidelines for the park. An 11-acre storm water detention facility will include four of the baseball/softball fields. Comanche Park required the reconstruction of a 14.7-acre park site in the North East Heights area of Albuquerque, adjacent to the North Diversion Channel. Both sites were designed as flood control facilities, and drainage and access will be critical items to coordinate with the Albuquerque Metropolitan Arroyo Flood Control Authority (AMAFCA) and the City of Albuquerque.