Experience

Richard M. Gallegos, P.E.

The following pages reflect the experience I have accumulated since graduating from Texas A&M in December of 1993. I have worked with three different engineering firms in the San Antonio area prior to commencing with Gallegos Engineering, Inc. As you can see my firm and I have extensive knowledge in the field of Civil Engineering with an emphasis on Water and Municipal Engineering.

Mission Statement

Small company communication with large company achievements all while striving for the utmost quality of engineering service; responsive by using the latest technologies to bring the highest quality of assistance our clients deserve.
This is what my firm and I strongly believe and will achieve for my existing and new clients. I hope this document will allow my company to submit additional information to help satisfy any of your future engineering needs.

Water

Bexar Metropolitan Water District
Pump Station No. 16
San Antonio, Texas
Construction Cost of $4.3 Million
I designed a new 12.5-MG precast, concrete ground storage tank site and an 11.5-mgd high service pump station. Utilizing WaterCAD I determined the size of pumps necessary to meet future demands of the Greater Kelly area as well as the Southside Service Area of Bexar Metropolitan Water District. The design of the pump station included determining the demand of the system, sizing the capacity and head on the pumps, sizing the suction and discharge header diameters to ensure negligible head loss through the hardware piping and space the pumps for adequate maintenance. I calculated and designed the 30” diameter inflow pipe for the tank as well as the 20”and 24” diameter discharge pipes to distribution. This facility will serve as the terminus of treated surface water from the District’s new 9-mgd surface water treatment plant. The project is currently in construction and I verified and approved or took exception to shop drawing submittals, pay requests and change orders for this job. I was the point of contact to handle coordination between all contractors, utility companies, electrical engineer and structural engineer. I kept the client informed of construction progress by reviewing and finalizing a monthly construction progress report produced by the resident construction inspector.

Bexar Metropolitan Water District
Timberwood Park Pump Station and Water Wells
San Antonio, Texas
Construction Cost of $0.5 Million
At the request of Bexar Metropolitan Water District I designed three water well specifications for wells to be drilled in the Glen Rose Formation. Only two of the wells were to be drilled at this time leaving the third well for future subdivision growth. I analyzed two separate Gamma Ray/Induction logs and determined the length of steel casing pipe for each of the two wells. I reviewed and approved the shop drawings for the 0.5 MG steel bolted ground storage tank. The design of the pump station included determining the demand of the system including fire flow, sizing the capacity and head on the pumps, sizing the suction and discharge header diameters to ensure negligible head loss through the hardware piping and space the pumps for adequate maintenance. I designed the pump station, located on the South side of the development, to deliver water from the ground storage tank, through the Timberwood Park distribution system to a proposed standpipe located on the West side of the development.

Bexar Metropolitan Water District
Staggs Ranch Pump Station and Water Wells
San Antonio, Texas
Construction Cost of $1.2 Million
At the request of Bexar Metropolitan Water District I designed three water well specifications for wells to be drilled in the Carrizo Sands Formation. I analyzed three separate Gamma Ray/Induction logs and determined the length of steel casing pipe and the length and size of stainless steel wire screen located in the lower pilot hole for each of the wells. I analyzed the water quality results and determined per state limits that both the iron and manganese concentrations exceeded the allowable limit. I was involved in the design for the removal of iron and manganese in the well waters for this project. I reviewed and approved the shop drawings for the 1.0 MG steel bolted ground storage tank. The design of the pump station included determining the demand of the system, sizing the capacity and head on the pumps, sizing the suction and discharge header diameters to ensure negligible head loss through the hardware piping, and space the pumps for adequate maintenance. I designed the pump station to deliver water from the ground storage tank through a 20” transmission main to an existing elevated tank located in the Waterwood Subdivision. Currently the water wells are complete and the ground storage tank and pump station are being constructed at this time. I was the point of contact to handle coordination between all contractors, utility companies, electrical engineer and structural engineer.

Maxwell Water Supply Corporation
Alternate Water Supply
Maxwell, Texas
Construction Cost of $0.9 Million
I conducted a study and I designed five miles of 12-inch diameter transmission main and a water storage standpipe. I coordinated with applicable agencies during the design phase, including the U.S. Department of Agriculture, Army Crops of Engineers, U.S. Fish and Wildlife Service, Texas Parks & Wildlife and the Texas Historical Commission. The project will be in construction Spring 2001.

East Central Water Supply Corporation
I.H. 10 Water System Improvements Water Transmission Pipelines
San Antonio, Texas
Construction Cost of $1.7 Million
I designed nine miles of 16-inch diameter and 12-inch diameter water transmission mains to deliver water from a new delivery point to the existing distribution system. Construction is expected to complete by Spring 2001.

Maxwell Water Supply Corporation
HCR 159 500,000 Gallon Elevated Tank
Maxwell, Texas
Construction Cost of $0.56 Million
I designed the size required and the site layout plans for a 500,000 gallon composite elevated tank. I coordinated with the Federal Aviation Administration for the best out of four sites near the San Marco Airport. The project will be completed in Spring 2001.

Maxwell Water Supply Corporation
Water System Master Plan
Maxwell, Texas
I prepared a water system master plan projecting to the year 2020 for Maxwell Water Supply Corporation. Existing system demands were analyzed, in conjunction with projected population figures, growth forecast and future demands. I utilized WaterCAD for computer modeling. I also developed a Capital Improvements Program to implement the proposed improvements.

Bexar Metropolitan Water District
Canyon Park Subdivision Water Production Facility
Bexar County Texas
Construction Cost of $0.47 Million
I designed a water well to be drilled into the Edwards Limestone Formation. The design of the pump station included determining the demand of the system including fire flow, sizing the capacity and head on the pumps, sizing the suction and discharge header diameters to ensure negligible head loss through the hardware piping, and space the pumps for adequate maintenance. Since this subdivision will contain less meters than Bexar Metropolitan Water District service areas, I designed the pump station consisting of four centrifugal pumps mounted on a steel platform and a 5,000 gallon steel pressure tank to meet system demands. For Phase I to maintain the recommended pressure throughout the subdivision I determined the use of a pressure tank would be utilized and would take the place of an elevated tank due to the size of the development. Phase I also consisted of a 50,000-gallon steel bolted ground storage tank and necessary piping to the distribution system. Phase II improvements will consist of a 250,000-gallon steel bolted ground storage tank, a new vertical turbine pump station and new water well. Future elevated storage will be supplied from an adjacent proposed development which will have a ground storage tank located 100 feet higher in elevation than the Canyon Park Estates Subdivision thus serving as elevated storage. I have located within the water production site and designed Phase II improvements for ultimate development while adhering to TNRCC and State Board of Insurance regulations. I coordinated design information to and from the structural and electrical engineers along with the civil design portion to produce a full set of construction documents. I was the point of contact to handle coordination between all contractors, utility companies, electrical engineer and structural engineer.

Bexar Metropolitan Water District
West View Subdivision Water Production Facility
Medina County Texas
Construction Cost of $0.5 Million
Another engineering firm had previously designed the water well for this subdivision. I was responsible for the design of the pump station and discharge piping. The design of pump station included determining the demand of the system including fire flow, sizing the capacity and head on the pumps, sizing the suction and discharge header diameters to ensure negligible head loss through the hardware piping, and space the pumps for adequate maintenance. I determined a 150,000-gallon steel bolted ground storage tank would be required for water storage per TNRCC criteria. The designed pump station consisted of four centrifugal pumps mounted on a steel platform and a 6,700 gallon steel pressure tank. I determined the use of a pressure tank would be utilized and would take the place of an elevated tank due to the size of the development. I coordinated design information to and from the structural and electrical engineers along with the civil design portion to produce a full set of construction documents. I was the point of contact to handle coordination between all contractors, utility companies, electrical engineer and structural engineer.

Bexar Metropolitan Water District
Canvasback Lake Pump Stations and Pipelines
San Antonio, Texas
Construction Cost of $0.4 million
I designed 20,000 linear feet of 16-inch and 12-inch diameter water lines for water transmission and irrigation. The Transmission Pump Station drew water from the adjacent Leon Creek into a wet well housing four submersible pumps. I sized the pumps utilizing WaterCAD to deliver creek water via the 16-inch diameter transmission main to Canvasback Lake. The Distribution Pump Station utilized a pre-cast concrete wet well to which two vertical turbine pumps rested on top. I located the wet well adjacent to Canvasback Lake. I designed the transmission main to terminate into the Distribution Pump Station. Two 16-inch diameter pipes running 350 linear feet into the lake tied the Distribution Pump Station and Canvasback Lake hydraulically together. I designed the two distribution pumps to deliver lake water for irrigation to a center pivot via the 12-inch diameter irrigation main. The center pivot design parameters were 2,500 gpm at 50 psi at the irrigation delivery point. There were 5 irrigation delivery points sparsely located throughout the 12-inch diameter irrigation main.

Bexar Metropolitan Water District
Water System Study for Expanded Hill Country Service Area
San Antonio, Texas
I participated in a water system study to enable Bexar Metropolitan to expand its service area. Utilizing WaterCAD I analyzed the distribution system to identify system deficiencies, I determined ultimate growth and water demands, and I determined new facilities required to supply future growth and projected water demands. I also investigated and identified new delivery points to accommodate a non-Edwards Aquifer surface water supply to the service area and I developed a Capital Improvements Program to implement the proposed improvements.

Streets and Drainage

City of San Antonio
Salado Creek Watershed Study and Drainage Master Plan
San Antonio, Texas
A drainage study was performed on the Salado Creek and its major tributaries for the City of San Antonio. The purpose of this study was to provide a basis for a master plan for future drainage improvements and development in this watershed. The Salado Creek watershed has a drainage basin of approximately 190 square miles. I verified the design calculations of a HEC-1 hydrologic model. Storm water flows were computed for the 10, 25, 50, 100 and 500-year frequency storms within the Salado Creek study area for both existing and ultimate development conditions. I verified components of the model such as surface runoff (sheet flow), sheet flows (shallow concentrated flow), storm flows (channelized flows) and reservoirs (storage). I helped subdivide the entire watershed into 85 subareas, which were used as smaller drainage areas. I computed runoff from the subareas using sheet flow, shallow concentrated flow, and channelized flow. The computed runoff from each subarea was discharged into channels or creeks as storm water flow. I combined storm water flows routed in the stream network and combined them with the runoff from adjacent subareas to compute the peak storm water flows in the Salado Creek and its major tributaries. I calculated the area of differing hydrologic soil groups for each of the Salado Creek subareas to be utilized in calculating the storm water flows. I calculated the percentage of differing land use types within each subarea. Land use included dispersed residential, residential, densely developed, commercial, industrial, open space, streets and rural roads. I utilized three-dimensional digital topography mapping for the HEC-2 hydraulic model. I placed cross-sections every 500 feet with variations depending upon the influence of curvatures of the creek and structures that cross the creek. Each section was located perpendicular to the flow and extended to the limits of mapping. I determined the cross-section characteristics by assigning the appropriate Manning’s roughness coefficient to the proper area within each cross-section. I determined the coefficients that best represented the vegetation and the banks and varied floodway conditions observed along the Salado Creek.

I verified the five water surface profiles produced by the HEC-2 model representing the 10, 25, 50, 100 and 500-year frequency storms. The storm flows derived from the HEC-1 model were entered at the cross-sections representative of HEC-2 node locations.

I interpreted the output of the model and delineated the 10, 25, 50, 100 and 500-year floodplain on the digital topographic map. Utilizing the newly generated 100-year floodplain, I determined the areas with the most probability of flooding within the Salado Creek watershed. I reviewed the recommendations and cost projections made to the City of San Antonio. These recommendations were prioritized per a significant reduction in flooding. Some projects were not cost effective or created additional flooding downstream. These projects were not included in the recommendation.

City of San Antonio
San Fernando Street and Drainage Project
San Antonio, Texas
For this street improvement assignment, I provided construction administration services coordinating construction phase services and responding to questions from the contractor. The project consisted of engineering services for preliminary and final design and preparation of construction documents for street, drainage, water and sanitary sewer improvements within an existing six-square-block neighborhood in southwest San Antonio. The project consisted of approximately 2,800 linear feet of local street reconstruction, 700 linear feet of 36-inch diameter storm sewer improvements including inlets, 1,300 linear feet of 8-inch diameter sanitary sewer replacement, and 1,400 linear feet of 8-inch water main replacement.

Arion Park, Unit 3
San Antonio, Texas
I verified that the design of two proposed 72″ aluminized ultraflow storm water pipes were adequate in capacity to transport and discharge the upstream drainage area storm water flow. There was an existing multiple box culvert bridge these pipes were to be tied into. I designed a variable width junction box to tie into the existing concrete box culverts and channel the flow into these new pipes. At the terminus of the pipes I designed the energy dissipaters so the water leaving the pipes would maintain a velocity below 6 feet per second and not cause erosion to the Salado Creek bottom. The pipelines and junction box were required to be buried with enough fill to properly cover the two large pipes in order to accommodate future development at this site. I placed the necessary fill at a height and width to ensure proper drainage of the site and to not increase the downstream water surface of the adjacent Salado Creek.
Bridges Subdivision

San Antonio, Texas
I analyzed, for the client, the amount of developable land on the property. A creek ran down through the west portion of the property. I imported survey points and generated a topography map of the property. Utilizing a HEC-2 model I cut sections every one hundred feet perpendicular to the creek centerline. Using the FEMA map I found a 100-year water surface elevation that correlated to one of the sections I generated. Inputting this value and the proper Manning’s coefficients depicting the creek characteristics I completed the HEC-2 model and verified the 100-year water surface elevation and floodplain. I generated a plot of the property with the 100 year water surface delineated and submitted the information to the client.

Concourse Commercial Development
San Antonio, Texas
I verified the grading plan and equalized the amounts of cut and fill for the entire project. I also verified the design of a concrete drainage channel that ran through the development using Manning’s equation for open channel flow.

Golden Aluminum
San Antonio, Texas
I modified the existing parking area to better handle storm water runoff. I re-graded around the existing building and designed a concrete drainage swale to carry water away from the parking area.

City of San Antonio
Bobolink Street and Drainage Improvement Project
San Antonio, Texas
I participated in the design and preparation of construction documents for approximately 3,000 linear feet of street reconstruction and drainage modifications in a near north side neighborhood. I produced the drainage area maps and was involved in the design of multiple box culverts and interceptor drainage structures. I utilized the Rational method of computing a discharge over an existing drainage area. I sized the curb inlets by City of San Antonio requirements and determined the locations of each inlet.

Landfill

City of Uvalde
Municipal Solid Waste Landfill – Stage “B”
Uvalde, Texas
Construction Cost of $2,000,000
I prepared Class I Permit Modifications pertaining to the leachate collection system for an expansion cell Stage “B”. During the approval of the permit modification by TNRCC, I designed plans and specifications in accordance with the existing permit. The new cell will allow an additional 12 years of waste disposal for the City. Construction is scheduled to begin early Spring 2001.

City of Uvalde
Municipal Solid Waste Landfill – Motor Truck Scale
Uvalde, Texas
Construction Cost of $50,000
I prepared a Class I Permit Modification for the addition of a motor truck scale at the City’s municipal solid waste landfill. Following approval of the permit modification by TNRCC, I designed plans and specifications and performed construction observation for the installation of the motor truck scale. The motor truck scale has dimensions of 11 feet wide by 70 feet long and can accurately measure weights from 60 tons to 135 tons.

Commercial Development

Home Depot
Fair Avenue
San Antonio, Texas
I aided in the design of the earthwork and developed a grading plan that balanced the cut and fill for the project by selecting a proper finished floor for the proposed building. I set grades for adequate drainage for the entire project site designing to all applicable federal state, county and city codes. I aided in the design of storm sewer runoff and underground storm pipeline routing maintaining no increase of runoff between existing and proposed conditions. I routed the necessary utilities within 5 feet outside of the proposed building in the locations on the building set by the MEP. I coordinated with the City utilities and the Contractor to ensure no conflicts in meeting construction deadlines. I designed a concrete drainage channel and energy dissipaters on the far end of the property discharging storm water into a neighboring drainage channel using Manning’s equation and City of San Antonio requirements.
Home Depot

St. Johns Ave
Austin, Texas
I aided in the design of the earthwork and developed a grading plan that balanced the cut and fill for the project by selecting a proper finished floor for the proposed building. I set grades for adequate drainage for the entire project site designing to all applicable federal state, county and city codes. I aided in the design of storm sewer runoff and underground pipeline routing maintaining no increase of runoff between existing and proposed conditions. I routed the necessary utilities within 5 feet outside of the proposed building in the locations on the building set by the MEP. I designed in a similar manner for these projects: Home Depot Westlakes, San Antonio; Home Depot De Zavala, San Antonio; Autonation U.S.A., San Antonio.
Act III Theaters

Fiesta Trails Unit #4
San Antonio, Texas
I aided in the design of the earthwork and developed a grading plan that balanced the cut and fill for the project by selecting a proper finished floor for the proposed building. I set grades for adequate drainage for the entire project site designing to all applicable federal state, county and city codes. I aided in the design of storm sewer runoff and underground pipeline routing maintaining no increase of runoff between existing and proposed conditions. I routed the necessary utilities to the proper locations on the building per the MEP to within 5 feet of the proposed building. The project was near completion when the owner decided to increase theater capacity from 10 theaters to 16 theaters. I modified the site and grading plans to accommodate the new changes. I relocated the water main feeding the building since the new extension of theaters encroached on top of the water line and fire hydrant. I maximized the parking stalls to meet the required number while saving as many trees as possible. I provided dimensional control for the contractor as construction progressed.

Environmental

South Loop Land & Cattle Company
Spill Prevention Control and Countermeasures
San Antonio, Texas
I developed and completed several SPCC Plans for South Loop Land & Cattle Company. A SPCC Plan is required under the Clean Water Act for facilities that store, transport or handle oil and can possibly discharge oil in harmful quantities to navigable waters. I visited the seven separate facilities in the San Antonio area to investigate spill prevention measures already in place and I determined system upgrades required for the Company to be in compliance with the latest EPA regulations. I coordinated with the Environmental Protection Agency’s Region 6.

American Light
San Antonio, Texas
I aided in an Environmental Site Assessment for American Light who wanted to move to an existing building located in a Northeast San Antonio Industrial area. I helped determine whether hazardous materials such as asbestos were currently on-site or had existed on-site previously by conducting research at a public library and at the TNRCC. I surveyed surrounding businesses within a quarter mile and half mile in order to determine if adjacent buildings could house hazardous materials. I found no neighboring hazardous materials existed.

References

Maxwell Water Supply Corporation
Mabel Vaughn
Manager
PO Box 158
Maxwell, Texas 78656
Phone: (512) 357-6253

East Central Water Supply Corporation
Albert Strzelczyk
Manager
PO Box 570
Adkins, Texas 78101
Phone: (210) 649-2383