Construction activities on large projects can generate considerable noise over extended periods. BKL has provided consultation for noise mitigation on the following projects:
Royal Jubilee Hospital
The effects of construction noise from hospital expansion or renovation are particularly inimical to patients, who may already be suffering the stresses of illness. Guidelines and specification for control of construction noise were provided as part of a facility expansion feasibility study, with emphasis on hard rock drilling and excavation within 50 feet of existing patient rooms for construction of a $70 million addition.
CBC Regional Broadcast Centre
With ongoing TV and radio production, the expansion of the old CBC building was approached by first conducting field trials of demolition activities to measure and subjectively gauge expected disruption. Meetings with stakeholders were conducted to establish user requirements and discuss and approve mitigation strategies such as saw cutting concrete slabs to reduce structure-borne noise transmission and detailed scheduling of construction and production activities to minimize disruption.
Port Mann / Highway 1
Lower Mainland, BC
Prediction, monitoring and assessment of noise and vibration received in residential and commercial areas along the 37 km long corridor of this major highway project. Included Cadna/A computer noise models with detailed construction equipment information (e.g. pile driving, mobile equipment, plants) to approve or restrict operating locations or schedules and vibration monitoring at multiple simultaneous locations to assess damage potential.
UBC District Energy Centre
Construction noise and vibration limit specification and monitoring to protect sensitive laboratories (vivaria, micro CT scanning and electron microscope labs) in nearby buildings.
Vancouver Convention Centre Expansion Project
Measurement of underwater noise due to pile driving to assess damage risk to fish.
Winnipeg Public Safety Building
Measurement and assessment of interior noise resulting from several alternative installation methods for the exterior re-cladding of an occupied public safety building including a 24/7 emergency response call centre.
Assessment and control of construction noise impact on existing offices in a high-rise building resulting from an 11-storey addition.
Port Mann Water Supply Tunnel
Surrey & Coquitlam, BC
Baseline noise monitoring, construction noise predictions at commercial and residential receptors using Cadna/A software, and noise and vibration mitigation design (e.g. scheduling, temporary barriers, source orientation) for slurry tunnel boring project. Public open house attendance.
Seymour Shaft for Water Supply Tunnels
North Vancouver, BC
Prediction, monitoring and assessment of noise received in a residential community during construction of an 11m diameter, 180m deep shaft within Lynn Canyon Park. Noise levels due to blasting were monitored and reported throughout a ten-month period.
Little Mountain Reservoir Reconstruction
Vancouver, BC – Greater Vancouver Regional District
Prediction, assessment and mitigation of noise from a major construction project in the midst of an urban park and residential community. This project involved preparation of noise control specifications for the construction contract, participation in public open houses and noise monitoring prior to and during construction.