Lone Cone Public Library


The community of Norwood, Colorado, welcomed a brand-new public library and gathering place. In addition to general library space, the nearly 11,000-square-foot building features a lobby, children’s area, multipurpose room, business center with conference room, study rooms, offices, break room, warming kitchen for events, and restrooms. The 2,000-square-foot multipurpose room and warming kitchen provide flexibility for the community to hold meetings and catered events.

On the Anderson Hallas Architects team, 360 Engineering provided mechanical and plumbing engineering consulting and design services. As a primarily tax-dollar funded project, in addition to occupant comfort, the budget was an important factor when selecting the mechanical system. The prefabricated metal building did not allow for roof-mounted systems, so the mechanical design included a grade-mounted RTU and several gas furnaces with split DX cooling. These small furnaces worked well with the architectural design as they fit in tighter spaces, allowing for maximum use of space.

In addition to mechanical and plumbing design, 360 Engineering performed an energy model analysis, helping meet the project’s Green Globes rating system goals.

Denver Northfield Fire Station No. 39


To meet the needs of the growing Northfield neighborhood in northeast Denver, the Denver Fire Department proposed the construction of a new 2-bay fire station to improve their response time for medical and fire emergencies and maintain services associated with the forecasted population growth. The OZ Architecture A/E team designed the new fire station, 360 Engineering fulfilled the mechanical and plumbing engineering services.

The new fire station has apparatus bays, living quarters, a watch office, a fitness area, a community room, a hose tower, a communications tower, and additional spaces to support the needs of the Denver Fire Department. The capacity requirements included housing one fire company — nine firefighters, three engineers, two lieutenants, and one captain — with the capacity to house two companies in the future.

With a LEED Gold goal, the mechanical system design involved a high-efficiency packaged rooftop unit with VAVs, providing heating, cooling, and ventilation to the fire station. Exhaust systems were specified for the kitchen, restrooms, locker rooms, and fire station bays. Make-up air was designed for building pressurization associated with the fire station bays.

The plumbing system design included interior spaces and exterior hose bibbs. In addition, the plumbing design included drains in the fire station bays, sand & oil interceptor for drains in the fire station bays, and coordination with the Civil Engineer on the location of the waste line connection to the main.

Denver Fire Station No. 39 was completed on schedule and celebrated its grand opening on May 31, 2019. The facility is now USGBC LEED Gold Certified.

Longmont St. Vrain Memorial Recreation Center


Located in Longmont’s historic old town district, Longmont St. Vrain Memorial Recreation Center has an indoor gymnasium, locker rooms, classrooms, group fitness room, and weight room with free weights and other exercise equipment.

Hired by Rocky Mountain Trane, 360 Engineering completed a detailed field assessment and provided the Recreation Center with a solution to the indoor gymnasium’s failing Air Handling Unit (AHU). The unit had been modified since installation to serve adjacent yoga and kids tumbling rooms, so the Recreation Center was also looking to improve the zoning in these rooms. Special heat requirements were met for the yoga room to accommodate hot yoga classes.

The final design replaced the failing AHU with (2) Variable Air Volume (VAV) AHU’s with re-heat terminal boxes to separate the gymnasium from other zones at the recreation center and to optimize thermal comfort.

Denver Mountain Parks – CCC Camp Morrison


One of Denver Mountain Park’s 46 properties, the Civilian Conservation Corps (CCC) Camp in Morrison opened in 1935. At one point about 200 men lived in these barracks just south of Red Rocks Park completing various conservation projects.

HistoriCorps, a nonprofit focused on providing volunteers to preserve historic structures around the country, set out to restore 11 of the 14 buildings at the CCC camp in Morrison. One of the old barracks eventually becoming their new office space. Anderson Hallas Architects provided the design to restore this historic barrack and help transform the space for HistoriCorps staff members.

Under Anderson Hallas’ design team, 360 Engineering provided mechanical engineering services from initial site assessment through construction administration. The firm worked within a tight construction budget and followed the client’s direction to use evaporative cooling, which significantly increased duct sizing. These constraints created an added challenge related to duct routing in this historic structure. In the end, the new HVAC and plumbing systems helped convert the space to a comfortable, functional, office environment. HistoriCorps was able to move-in and continue their rehabilitation work at the CCC camp and throughout Denver Mountain Parks.

1881 Pierce – HVAC Replacement Commissioning


The State of Colorado and 360 Engineering have a strong partnership, built throughout multiple mechanical engineering projects completed for the Colorado Capitol Complex buildings and other State buildings. The State hired 360 Engineering to provide HVAC Commissioning Services for Phase 2 and 3 of an HVAC Replacement at 1881 Pierce Street, in Lakewood, Colorado. The Phase 2 project scope involved replacement of two air handling units (22,200 & 24,475 CFM) with hot water and chilled water coils and the two associated return fans. The Phase 3 project scope included replacement of approximately 50 VAV boxes.

360 Engineering developed the detailed commissioning plan establishing individuals’ roles and responsibilities in the commissioning process, requisite documentation, meeting schedule, equipment readiness prerequisites, equipment start-up requirements, functional performance test procedures, acceptance criteria, and O&M training obligations. 360 Engineering reviewed design documents, equipment submittals, system verification checklists, test and balance procedures, and functional performance test results.

During commissioning, 360 Engineering discovered the like for like replacement of the air handling unit did not achieve the fan performance specified and further examination revealed an existing section of ductwork was short circuiting the return fan and needed to be corrected by the design engineer to achieve proper operation.

City of Lakewood – Carmody Park


With nearly 100 parks, the City of Lakewood offers residents and visitors an abundance of outdoor recreation options, including the recently redesigned Carmody Park. This beautifully updated park features the City’s first universally-designed playground, fitness zone, and a new 675-square-foot restroom facility. 360 Engineering designed mechanical and plumbing systems for the fully-heated, energy code compliant, year-round restroom building.

 

2019 Colorado Lottery Starburst Award Winner

South Adams County – Water & Sanitation District Administration Building


The new 13,000 square-foot South Adams County Water and Sanitation District Administration building was constructed on the site of the District’s existing facility. Construction was phased to allow administrative functions to remain operational until the transition to the new space. The new building, twice the size of the original, was designed to operate at a similar utility expense.

Mechanical design for the project consisted of utilizing a large concrete reservoir system as the heat sink for a heat pump system. The reservoir water is pumped into the building, through a heat exchanger, and then returned to the reservoir with an overall temperature rise of less than 2° F on design day conditions. A separate closed-loop system of condenser water is located within the building and is pumped through the heat exchanger and out to the heat pumps located throughout the building.

The overall building was also reviewed and studied with the architect to site the building with reduced window exposure in the summer, utilizing overhangs to shade the south and west windows, keeping a careful eye on the window to wall ratios, and evaluating the insulation used in the walls and roof for a highly energy-efficient building.

Breckenridge Arts District – Development and Renovation


The Breckenridge Arts District combines historic charm with amenities such as dining, shopping, and art studios, galleries, and performance spaces. This community space brings arts and entertainment to locals and visitors of the former mining town. For the Arts District development, 360 Engineering provided mechanical and plumbing engineering services from design through construction administration. The project included a ceramic studio, the Robert Whyte House, Burro Barn, Randall Barn, and 1,000 square feet of flexible-use studio space.

The team first reviewed the area’s existing mechanical and plumbing systems and then engineered construction drawings for new replacement systems. Included in the project scope, was a feasibility study for the potential addition/renovation of the existing Breckenridge Theater building.

Colorado State Capitol Complex – Expansion Tank Replacements


360 Engineering provided evaluation and design services to replace existing expansion tanks in several Colorado State Capitol Complex facilities: The State Office Building heating water system, Centennial Building heating water system, 1881 Pierce Street Department of Motor Vehicle Building heating water system, Colorado State Capitol domestic cold water booster pump system, and Annex Building domestic cold water booster pump system. Based on an evaluation of detailed site observations, the team recommended various long-term solutions for each building.

Colorado State Services Building – Waste Riser Replacement


For the seven-story Colorado’s State Services Building (SSB), part of the State Capitol Complex, 360 Engineering helped find a long-term solution for replacing the building’s main waste riser. The team began by documenting all the known issues, then performed an evaluation of the waste riser that included collecting pipe fittings and coupling samples for material testing, measuring pH balance throughout the building complex, and determining pipe conditions with camera scoping. Based on their findings, the team provided recommendations along with cost estimates and construction documents. The selected alternative rerouted the steam condensate pump discharge, added two new pumping stations, and replaced the waste riser. In addition, 360 Engineering provided construction administration services, including a pre-bid walk through, pre-construction meetings, weekly owner-engineer-contractor (OEC) meeting/visits, submittal review, answering RFIs, punch list visits, and a final acceptance walk-through.