Design-build project to construct a new indoor firing range for maintaining the proficiency of embassy security personnel. The range has fifteen shooting lanes, with multiple stations extending up to 100 yards from the target. An air-conditioned space with control/observation room, offices and bathroom is located at the up-range end of the building. Simulated sniper shooting positions are located on the floor above of the control room. At the other end of the range, behind the targets, is a ventilated bullet trap.
Corish Engineering served as the client’s third-party professional engineer for analysis of ventilation problems discovered during system commissioning. We inspected the as-built system and product submittal documentation for conformance to the engineering firm’s design, then witnessed and performed airflow testing at each shooting station. We provided recommendations for corrective action.
Corish Engineering was was first contacted by the client on a Saturday. Mr. Corish departed Dulles airport the following day, en route to the Middle East. The host nation consulate in Washington, D.C. was not open on Sunday, so arrangements were made to get his visa in the United Arab Emirates. This way, Mr. Corish was able to get on site as quickly as possible.
Deliverables ranging from a performance specification to detailed design drawings are provided for projects such as the following:
- Design of HVAC and plumbing for new 3200 sf restaurant.
- Construction of a small chemical storage room within a manufacturing plant, rated for a hazardous atmosphere (Methyl Ethyl Ketone). This included provision of exhaust ventilation and make-up air system to protect operators from harmful vapors.
- Geo-exchange heat pump systems for residential space and domestic how water heating, employing forced air and radiant heat, as well as energy recovery ventilation. One engagement became the first LEED Gold-certified residential project in Virginia.
- Study of sprinkler systems at a 400,000 sf manufacturing plant.
- Design for HVAC, plumbing and fire protection systems for 8000 sf fire station, including apparatus bay, offices and bunkhouse.
- Replacement of oil-fired boiler for a 6800 sf office/apartment building. The boiler was aging and oversized. We performed the heating load calculations to select the new boiler. We also recommended addition of wall insulation in one room, reducing energy use and improving temperature control by balancing envelope U-factor amongst rooms.
- Preliminary design for design-build renovation of a 3000 sf office building with maintenance shop, to include architectural work, plumbing renovations, and complete HVAC system replacement.