R2H Engineers have over 150 years of combined experience in the design of a variety of architectural structures, utilizing all types of construction materials. We have been involved with architectural projects that range in size from small tilt-up buildings to an expansion of Terminal 'D' at McCarran Airport in Las Vegas, Nevada.
Our staff has designed projects using different kinds of materials; this allows our engineers to assist in selection of the most economical building system for a particular type of structure. In addition, our work in high seismic regions provides insight into good detailing practices, which are carried over into our designs in lower seismic areas.
Our engineers are personally involved in research and code development through broad participation in professional society technical committees, such as the Applied Technical Committee and the Seismology Committee. As a result, we have made significant contributions toward seismic design, existing facility augmentation, materials and construction process criteria through the governing design codes.
Our experience in the following areas
Hoist Corporate Headquarters
R2H Engineering provided the structural design for their new 130,000 S.F. corporate offices. The building includes a 15,000 S.F. steel deck and concrete mezzanine designed to minimize floor vibrations from exercise in the show and demonstration area.
Terra Nova is an aggregate storage facility for large ships to unload material via conveyors between towers, a storage building and a truck loading building, located in the San Francisco Bay Area. The project is a 640 ft. x 80 ft. x 75 ft. height steel Butler building.
R2H was involved in designing their commercial building that would encompass their embroidery department and their simulated golf center. Industrial/commercial building totaling 207,315 sq. ft. with 38' high concrete tilt-up walls at the perimeter, partial 2nd story of 41,000 sq. ft. also rectangular in plan
Amerillum Office Park
Oceanic Office Park
Oceanside Business Park
Poway Corporate Center
Minuteman Office Park
Greenfield Middle School
The structure is a two story tilt-up building consisting of 35,600 sq. ft. on the ground level with an 8,600 sq. ft. 2nd level. The building has a wall panel approximately 35 ft. high. The main structure features an entry canopy on the north side of the building.
Soaring Wings Montessori
Soaring Wings engaged the father of a future student, Architect Solim Gasparik, to create a plan combining the practical needs of the school along with custom elements. The school was designed with western touches that made it feel like an Old Ranch Road home. This school location enrolls roughly 135 students with ages ranging from infants to middle school. The school is accommodating to children of all ages, and includes gardens, nature paths and a skateboard park.
Tri City Christian Schools
R2H provided the structural design for the new 7th through 12th grade school building. The building is a two-story tilt up with a base footprint of 147' x 78' with a total square footage of over 22,500 sq. ft. The building has an external stair at the north end and an internal staircase and elevator at the south end of the building. The roof is an open web steel girder.
American Heritage Charter High School
El Cajon Valley High School
R2H prepared structural designs and drawings for construction of new administration, maintenance and warehouse facilities for the Cajon Valley Union School District. There are 4 buildings totaling 127,000 sq. ft, consisting of two 2-story buildings and two single story buildings.
Brigham City Community Hospital Medical Office Building
Buzard Eye Institute
R2H was the prime consultant on the project which consisted of the structural design for a 30,000 sq. ft. building constructed for the Buzard Eye Institute. The building includes a three story open atrium at the center of the structure with a curved skylight. The plan, which allows for a future 7,000 sq. ft. expansion, was accomplished by designing the first floor roof at the exterior wing of the building as a floor so an additional roof could be installed in the future to utilize the entire building footprint.
Oceanside Transit Center Parking Structure
As a sub-consultant, R2H assisted in the project management and was responsible for the complete architectural and structural design services of this 500 car 3 level parking structure. The parking garage is for the use of the City of Oceanside employee parking, and for the train station patronage
The parking garage is to serve the office and commercial buildings within the park and the other surrounding businesses to help ease the parking overload. The garage is 120,000 sq. ft. with three stories and is constructed with pre-cast, pre-stress double T concrete joists. Pre-stress girders and cast-in-place concrete shear walls.
Idaho National Laboratories
R2H Engineering was the design lead for the test train assembly facility at the INL. This facility included a single story structure with administrative office space and an assembly area used to assemble fuel roads for the ATF reactor. The design was completed per INL Engineering, International Building Code, and ASHREA energy standards.
Calexico Border Port of Entry
The project includes on-site development and improvements to off-site streets, state highways and railroad crossings adjacent to the site.
Hill Air Force Base Little Mountain Testing Facility
The facility is located off the shores of the Great Salt Lake and is primarily in the development of propellants and other classified research. For building 501, which is a high security test facility, R2H preformed several site investigations in order to develop a set of working drawings and designed a new roof system, electrical and mechanical modifications, and resolved other issues in the process.
Corona Transit Center
R2H was involved in the design of a 2,000 sq. ft. single story stick framed building, foundations for the 4 light poles and 3 flag poles, retaining walls from 4' to 10' high and under 200' in length, sound wall approximately 6' high and less than 100' long, structural slab for the bus traffic, and extension of the pedestrian bridge.
Cannon Court Hotel & Restaurant
This three story wood and steel framed hotel is over a concrete parking basement. It is an 80 unit luxury hotel comprising 53,800 sq. ft. in a wood framed structure with steel framing in the longer spans. The hotel has a Cape Cod motif which includes multiple dormers in the third story, creating an irregular roof pattern.
Rendon Terrace Senior Living
This 70-unit housing development built by Utah Non Profit Housing Organization helps low-income seniors continue to live independently. The rezone of the property on Capitol Hill was funded by state tax credits. The three story complex, which sits on roughly two acres at 72,209 sq. ft. houses mostly one-bedroom units with some two-bedroom units. It is a wood frame construction, wood roof trusses and concrete shear walls.
Tuscany Crossing Assisted Living
The design of this new 20,000 sq. ft. assisted living center is comprised of 60 units, two story wood structure with a partial basement. Duties performed included directing the production design team, coordination of disciplines and general contractor, provide architectural and structural design and assist with pre-construction duties.
Las Vegas Convention Center
R2H provided Services for the independent peer review of the entire building project; Structural design and drafting services for the ramps and the elevated platform as a sub-consultant to the project's principal structural designers. These ramps consist of mechanically stabilized earth (MSE) retaining walls and fill. The platform is composed of structural steel plate girders and a concrete deck; Stairs and other miscellaneous architectural accommodations in the area.
The project includes a movie theater facility, a two story office building and a retail building. The 70,000 sq. ft. theater, which holds 16 auditoriums, has a two-story high lobby area and mezzanine level projection rooms. Gravity load resisting systems are used at the auditoriums, lobby and the mezzanine.
Chevrolet of La Quinta
Pioneer Land Rover of San Diego
Zions Bank Tower
R2H's Transportation division has over 100 years of combined experience in the design of transportation structures. As a firm specializing in structural engineering, we have performed bridge design services under a variety of contractual relationships. These include roles as the prime contractor when bridge design services dominate the project scope and as a sub consultant on larger roadway projects, which also include bridge structures. These structures have ranged from small single cell box culverts to $60 million freeway interchange rehabilitation and upgrades, which include bridge widening's, sound walls, and retaining walls.
Las Vegas Motor Speedway Entrance Tunnels
Charleston Pedestrian Bridge
Scenic Bridge over Virgin River
As a sub-consultant, we were responsible for preliminary and final design of a 5-span 485'-6" long bridge structure to span the Virgin River. The superstructure consists of AASHTO type I girders supported on hammerhead piers. Each pier column is supported on a pile cap placed over a group of driven concrete filled steel shell piles.
Laughlin Regional Trail Bridge
This project involved the design services for a pedestrian bridge over Nevada SR 163, including plaza towers and abutments at each end of the bridge and associated retaining walls. Also included was a box culvert type equestrian underpass.
Las Vegas Wash Channel and Trail Bridge
Prefabricated trusses were utilized for the bridge superstructures. The main spans over Las Vegas Boulevard and Cheyenne Avenue included faux arches as an architectural treatment. During final design, the arch members were changed to structural elements and designed to carry a portion of the live load, reducing the bridge cost.
Hacienda over I-15 and Industrial Road
As a sub-consultant, we were responsible for the layout and design of a complete bridge structure. The bridge was a four-span steel I-girder superstructure and was constructed with span lengths of 120', 134', 124', and 120'. It is 80' wide, the 4 columns/pier are set on spread footings.
Mira Vista Street & Vista del sol Drive Bridges
The project consisted of two two-span conventionally reinforced concrete flat slab bridges. Both bridges were placed in a residential area to carry local traffic over a concrete lined channel. Utilizing channel walls as part of the abutment system decreased costs and decreased construction time. Both structures spanned over 40' with bridge deck width of approximately 31'.
Nellis Blvd., Hacienda Ave. to Russell Road
As the prime consultant, our responsibilities during the design phase includes traffic, roadway, hydraulics and structural design, geotechnical studies, survey and coordination with the railroad for necessary clearances and right-of-way. We were also responsible for the planning, layout and development, including; feasibility study, preliminary design, modifications and PS&E for the entire project. Construction phase services include accommodate traffic flow in I-515 allowing full use during construction, assistance in the bidding and award of the project, pre-construction meeting, scheduling, review of testing and RFI's, and site observation. We will be acting as the owner's representative on the project.
Sunset Road over I-15
As the prime consultant, we were responsible for the planning, layout and development, including; feasibility study, preliminary design, modifications and PS&E for the entire project. R2H designed the traffic, roadway, hydraulics and structural design, geotechnical studies, survey and coordination with the railroad for necessary clearances and right-of-way. Construction phase services include assistance in the bidding and award of the project, pre-construction meeting, scheduling, review of testing and RFI's, and site observation.
McCarran Airport - Terminal 3 Bridge
R2H assisted G.C. Wallace with the connecting roadways for the new terminal by designing two of the 16 bridges required. These 16 bridges are all cast-in-place post-tensioned concrete structures. R2H is responsible for Bridge 10 and Bridge 11, located on the west side of the project, immediately east of the current intersection of Russell Road and Paradise Road. Bridge 10 is a 35-ft wide by 120-ft long single span on a curved alignment. Bridge 11 is a 3-span structure on a straight alignment with a total length of 19 ft and a variable width from 35 ft to 65 ft.
Martin Luther King Blvd
This project consisted of approximately two miles of roadway widening and storm water drainage improvements along Martin L. King Blvd from Alta Drive to Carey Ave. The roadway was widened to increase traffic flow and new curb inlets and larger drainage pipes were installed. As the structural sub-consultant on the project, our responsibility included the design and preparation of construction documents for the project. Our design included 6 new cast in place RCP junction structures. We also provided a design for a soil nail wall in front of the bridge abutment at MLK and US-95 in order to make the widening of the road possible under the existing bridge.
R2H Engineering completed the structural design for channel improvements including concrete vertical wall sections up to 18-feet high, trapezoidal-transition sections, continuous low-flow channel bottoms and three new prefabricated steel truss pedestrian bridges.
I-84 Bridge Deck Replacement
This project included repairs and improvements to a 5 mile section of I-84 in Weber Canyon, including the rapid bridge deck replacement for three structures. Accelerated Bridge Construction (ABC) techniques were required by the client to design and construct the bridges in a single construction season.
Centennial Bridge over US-95
As the prime engineer on this project, R2H designed a 4-span 497' long and 67' wide post-tensioned concrete box girder bridge to carry traffic on the future beltway over US-95.
St. Rose Parkway Improvements
During Phase I, R2H provided structural engineering services for 2,000 meters of cast-in-place noise walls as well as retaining wall design and drainage structure design. R2H also designed a cast-in-place concrete "hourglass" SPUI bridge for the new interchange at SR-146 and I-15. R2H provided similar services to phase I except that the amount of retaining walls in phase II was more extensive. Phase II included noise walls similar to phase I and numerous drainage and auxiliary structures. Phase II also includes three special sign bridges that R2H designed. These bridges exceed the standard lengths by a considerable amount, with the longest one spanning more than 57 meters.
I-80/I-580/US-395 Spaghetti Bowl
As a sub-consultant, we were responsible for the seismic retrofit, bridge widening and repair plans and structural inspection for the improvements. The project included the rehabilitation of over twenty structures, seismic upgrades, bridge widening's and other modifications required to improve the existing interchange and associated freeway. Also included in the project was design of several concrete and MSE retaining walls, over 6 miles of sound walls, storm drains and other misc. structures; seismic retrofit and widening's occurred at several structures, including Oddie Boulevard and Wedekind Road; Inspections and repairs were included in all structures, including barrier rail and approach slab replacement, deck overlays, deck sealing, joint replacement and patching.
As the structural sub-consultant on the project our responsibility included the design and preparation of construction documents, and construction administration for the project, SPUI Structure over Horse Rd, utilities, sign support foundations and other treatments; Bridge structure simple span grade separation design, sign support foundations and utility sleeves; 4 Retaining walls at the SPUI Bridge; 4 Retaining walls at the Horse Dr./Frontage Rd. grade separation; Retaining wall next to existing subdivision; 1 Channel Termination; 4 Confluence/Transition Structures; and 3 Reinforced Box Culverts.
Blue Diamond Road Improvement
Phase 1 consists of rebuilding the existing interchange at I-15 on the east end of Blue Diamond Road and widening the roadway from I-15 west to Valley View Boulevard. In addition to the main interchange bridge and ramps, the new interchange required several relocation's of existing businesses. R2H designed and detailed the wall which also functions as a major drainage channel. Cast-in-place concrete with aesthetic treatment was applied to the 1100-ft long wall. Phase 2A - Working as a sub-consultant, R2H prepared structural designs and drawings for the box culverts, rectangular channels, and trapezoidal channels in this phase. Phase 2B - Design and detailing of approximately 9,500 feet of MSE wall reaching 45 feet in height. The extensive retaining walls are necessary to avoid the need for additional right-of-way as the new roadway raises up and over the railroad tracks.
R2H Engineers have over 80 years of combined experience in the design of water/wastewater structures. Our water related structures have ranged from overflow vaults to full structural support for new wastewater treatment facilities.
Along with new design, we have also been involved with the retrofit and rehabilitation of these same structures. We possess the unique experience of having provided both architectural and structural design on many of our water/wastewater facilities. This knowledge gives our technical staff the capability to thoroughly understand the project and enables us to have open and clear lines of communications with the other consultants.
Old Coach Pump Station
The pump station is a two room masonry building at grade with a typical wood gable roof approximately 30'x35'. The building houses pumps, valves and electrical equipment and vertical turbine pumps. The roof is concrete tile with skylights over each pump. There is a monorail to facilitate the removal of equipment. The reservoir is ½ to 1 million gallon welded steel tank with a standard ring wall foundation.
Las Vegas Valley Wastewater Treatment Plant Expansion
The project included: design of circular and rectangular tanks, including digester facilities with two circular tanks 30' high and 67' in diameter, eight secondary clarifiers of an octagonal "honeycomb" design with basins 15' deep and over 200' in diameter. Rectangular tanks were designed for the aeration basin, chlorine contact basins and the contact clarifiers and filter basins. Other concrete structures included nitrification and influent pumping stations designed for dynamic torque and fluid loadings. Buildings were of reinforced masonry and steel design. Miscellaneous structures included retaining structures, pump housings and diversionary structures.
Horizon Ridge Reservoir and Expansion
The reservoir consists of a double cell 10 million gallon buried concrete potable water reservoir, a 1200 SF CMU utility building and two large buried concrete valve vaults. Reservoir is 355' long, 198' wide, and 18' deep at outer wall with maximum depth of 25'-6" at the center. Project also includes several outlet and inlet structures up to 40' in depth. The expansion to the reservoir is a mirror image of the previous reservoir. The expansions included a double cell 10 million gallon buried concrete potable water reservoir, a 1200 SF CMU utility building and two large buried concrete valve vaults.
Pump Station 90
The project consisted of a pump building with a wet well, a generator building and a below grade emergency storage tank. The pump building is a 2-room masonry building at grade with a hip roof with tile over a 26' deep cast-in-place reinforced concrete pump room / wet well. Approximate dimensions of the building are 28'x46'x18' high. The generator building is a 3-room masonry building with a hip roof with tile. Approximate dimensions are 24'x40'x14' high. The emergency storage tank is a below grade cast-in-place reinforced concrete structure. Approximate dimensions are 60'x60'x20' deep.
East Grove Reservoir
The project consisted of the design water booster pump station and reservoir. Pump station consisted of a two room masonry building at grade with wood gable roof housing motor control center, general and horizontal split case pumps. Monorail hoist provided to facilitate pump removal. Reservoir consisted of 1.28 million gallon welded steel tank founded on a concrete ring wall and oil sand cushion bed. The sewage pump station has a precast wet well with cast-in-place concrete top and bottom slab. There are site retaining walls with an integrated 3 sided MCC enclosure with a shed type roof. Also included is a screen wall, electrical equipment room, area slab, equipment pads, jib crane footing and other related structures.
Jordanelle Wastewater Plant
The Jordanelle Plant has a unique look, because of the adopted look for the town, and consisted of a 2 MG original plant with an anticipated 2 MG future expansion. Our responsibilities consisted of the full structural design of the treatment plant, including the Headwork's Building, the Sludge Holding Building and the Process Building. The Headwork's Building, including a pump station, is primarily above grade with concrete walls and a steel trussed roof structure. The Sludge Holding Building is actually two levels and required special design for vibrations due to the equipment to be placed inside the facility. The Process Building, being the largest building at 2400 square feet with an 80' open span supporting a 2 ton crane, housed offices, two aerobic basins, two anoxic basins and a four bay pump station and blower room.
Vandenberg Detention Basin
The project was the design of the Vandenberg detention basin. The detention basin was to hold storm water flows away from potential flooding in residential areas. We were responsible for the structural design of the detention basin, inlet and outlet structures, concrete lined channels, reinforced box culverts, and other miscellaneous structures. The basin includes a 3660 CFS inflow with a 263 CFS outflow. Energy dissipation was also a requirement for this project.