Carl T. Curtis Midwest Regional Headquarters of the National Park Service (Omaha, NE)

LEED Gold Version 2.0

Sustainable Site

• Brown field redevelopment
• Urban redevelopment area
• Bicycle storage and shower/ changing rooms available for alternative transportation
• Preferred parking and program for carpooling and alternative fuel vehicles  to serve 12% of occupants
• Reduced site disturbance through open space to encourage habitat
• Storm water management through BMP of vegetated filter strips, wet extended detention pond, constructed wetlands and grassed swales and a strict policy against the use on site of products containing phosphorus 
• 100% of non roof areas will be shaded in 5 years and impervious areas are provided light colored concrete to reduce heat island effect.
• 100% of roof meets emissivity requirements and complies with Energy Star to reduce heat island effect. 

Water Efficiency

• Landscaping uses native and adaptive vegetation and does not require not require permanent irrigation system
• 38.66% water use reduction  through use of low-flow and water efficient fixtures and appliances

Energy & Atmosphere

• Optimized energy efficiency through a 23.2% energy reduction compared to ASHRAE 90.1-1999
• Higher  insulation values, heat recovery, efficient windows
• Under floor air distribution and more efficient HVAC equipment 
• Lower lighting power density and day lighting, 
• Additional commissioning
• Plan for sub metering water and energy usage
• HCFC and Halon free HVAC (heating ventilation and air conditioning) equipment 
• Green power purchased to meet 100% of the building electrical needs for over of 2 years

Materials & Resources

• Occupant recycling
• Diverted 59.84% of construction waste through effective waste management plan
• 12.78% of total building materials by value contain recycled materials
• 36.8% local and regional materials manufactured regionally
• 17.2% harvested ore extracted  locally
• 59% of wood based materials were certified in accordance with FSC principles and criteria
  Indoor Environmental Quality (IEQ)
• CO2 sensors monitor to outside ambient levels and increased ventilation if exceeding thresholds
• Under floor air delivery system provides increased ventilation effectiveness in compliance with ASHRAE 129-1997
• Construction IAQ Management plan was in compliance with SMACNA guidelines, during construction, MERV 8  filters were installed at grilles
• Low emitting adhesive and sealants were used
• Low emitting paints  were used
• Low emitting carpet was used
• Indoor pollutant source control
• Controllability of non perimeter temperature, ventilation and lighting systems
• Designed for thermal comfort compliance with ASHRAE 55 – 1992 for relative humidity and temperature
• Thermal comfort monitoring system installed for compliance with ASHRAE 55 – 1992 for relative humidity and temperature
• 2% day lighting  factor for 75.1% of occupied space for critical visual tasks achieve
• 99% of all occupants have direct line of sight to views for all space occupied for critical visual tasks

Innovation and Design

• Green Building Education
• Exemplary performance in green power to meet 100% of the building electrical needs for over of 2 years
• Exemplary performance in  100% of non roof areas will be shaded in 5 years and impervious areas are provided light colored concrete
• Exemplary performance in low emitting materials – all furniture and finishes are Greenguard IAQ Certified
• LEED accredited professionals participating on the project

USGBC Carl T. Curtis Midwest Regional Headquarters of the National Park Service Website>>