Checklist for Historic Property Owner and Historic Site

• Consult with developer, contractor and other relevant parties to determine extent of adjacent work and identify necessary protective measures

• Conduct survey of existing conditions, including 35 mm photographs, crack inventory and description of other damage

• Include historic building in construction site fire plan

• Secure windows and rooftop doors that are made accessible by new construction

• Remove particularly fragile interior objects and furnishings from site

• Install temporary supports beneath fragile features that are not moved

• Place plywood coverings on openings that face construction area

• If neighboring construction rises above historic site, protect roof with plywood covering, encase rooftop embellishments

• If construction is directly adjacent, cover historic facade to protect against mortar, acidic cleaning solvents, tar and asphalt splash

• Install temporary floor coverings at entrance and seal windows facing construction site to limit dust infiltration

• Remove dust from interior surfaces on accelerated schedule

• Clean HVAC system and filters on accelerated schedule

• Clear obstructions from gutters and drainage system regularly

• Establish monitoring program, including:

  1. Seismographs to ensure that effects of blasting, pile driving and other work are at acceptable levels

  2. Crack monitors and optical survey methods to detect movement

  3. Schedule of regular visual inspection

Checklist for Development Team and Construction Site

• Consult with historic property owner and other relevant parties to identify necessary protective measures

• Review and sign off on pre-construction condition survey of adjacent historic property

• Arrange delivery locations and times to limit disruption and possible damage to neighboring historic structure

• Explore excavation and demolition methods that produce low vibration levels

• Limit movement of adjacent historic structure with sufficient underpinning or reinforced excavation walls

• Reduce changes to adjacent ground water level during dewatering

• Ensure water runoff is not directed toward historic structure

• Install appropriate debris nets to prevent dropped materials from contacting historic building

• Direct debris chutes away from historic structure

• Include historic structure in fire plan and ensure that fuels, rags and brushes are stored appropriately and not directly adjacent to historic site

• If asbestos or lead remediation is involved, ensure exhaust from sealed building is filtered and vented away from historic site and that lead chips are gathered and removed

• Include adjacent historic structure in rodent control program and seal all openings in demolished foundation

• Participate in monitoring program at historic site to ensure that vibration levels or indications of movement are within established thresholds

Credits