Displaying items by tag: Water
Eight Culvert Replacements
Project Description
Robinson Consultants Inc. was retained by the City of Ottawa to undertake the preliminary and detailed design for the replacement of eight existing culverts. The renewal structures included CSP and concrete round pipe. The culvert replacements were split into five separate contract packages for staggered delivery and construction. The replacement structures size ranged from 600mm to 3000mm in diameter. Trenchless renewal methods were designed for two of the sites using Cured-in-Place (CIPP), HDPE sliplining, and auger boring. One of the culverts failed during the design phase and required a road closure and emergency replacement operation.
Several activities were completed to support the design, including: hydrologic and hydraulic modelling, assessment of trenchless rehabilitation measures, geotechnical study, natural environment study, and consultation with environmental and federal regulatory agencies. Robinson Consultants Inc. completed the preliminary and detailed design including traffic and construction staging plans, temporary flow control, guiderails, and utility protection measures. Robinson Consultants Inc. also prepared tender documents in accordance with the City of Ottawa standards, attended meetings with utility companies, prepared property requirement plans, and obtained the necessary environmental approvals.
Hemmingwood Way ATM and Bioretention Measures
Project Description
Robinson Consultants Inc. was retained by the City of Ottawa to undertake the preliminary and detailed design for area traffic management and bioretention measures along Hemmingwood Way. The primary objectives of the assignment were to reduce the existing surface runoff through the implementation of bioretention measures and improve traffic safety along Hemmingwood Way. The proposed work included six bioretention rain gardens, two mid-block narrowings and a median, one intersection narrowing, and a Type C pedestrian crossover (PXO).
Several activities were completed to assess the suitability of the proposed LID measures including: drainage area delineation, hydrologic and hydraulic modelling, stormwater management modelling, geotechnical investigation, field permeability testing, groundwater level investigation, and Phase I and Limited Phase II Environmental Site Assessment, and consultation with environmental regulatory agencies. The field investigations revealed constrained conditions at some locations, including soils with low permeability and high groundwater table. Based on this detailed investigation, Robinson Consultants Inc. provided the City of Ottawa with recommendations for six bioretention cells located within proposed curb extensions. The inlets for the bioretention cells include a combination of curb cut inlets and cast-iron curb inlets. The preliminary and detailed design was completed and included a detailed landscaping and planting plan. Robinson Consultants Inc. prepared tender documents in accordance with the City of Ottawa standards and obtained the necessary environmental approvals.
Water Resource Services
Water Resource Solutions
Responsible management of water resources is essential in maintaining a balanced environment. To meet rigorous environmental standards, Robinson Consultants Inc. employs an interdisciplinary approach using engineering expertise to fully evaluate the available options for integrated environmentally responsible solutions. Robinson Consultants Inc. is fully involved in the public consultation process to ensure that the environmental concerns of interested individuals and agencies are included to satisfy the specialized requirements of water resource management.
What We Provide
Robinson Consultants offers a range of comprehensive water resource engineering services including:
- Hydrologic modeling
- Hydraulic modeling
- Conceptual, preliminary, and detailed design
- Contract administration
- Inspection
- Environmental approvals
- Stormwater management and drainage
- Low impact development design
- Culvert design and renewal options analysis
- Erosion control and natural channel design
Cardinal Creek Slope Stabilization and Erosion Control
Project Description
Robinson Consultants Inc. was retained by the City of Ottawa to undertake the preliminary and detailed design for the slope stabilization and erosion control at four locations on Cardinal Creek. The toe of slope at three of these locations was showing signs of erosion caused by the creek. Two of the sites showed evidence of active sloughing on the bank of the creek channel which had created steep slopes without any vegetation. A fourth site was not carried forward to design after a detailed field review and analysis concluded it to be of low risk. Slope stabilization and erosion control measures included reinforced soil system to stabilize slopes, erosion and scour protection at the toe of slope, and a planting plan with suitable native species to enhance slope stability. Site access and construction staging was a challenging issue due to the steep slopes and remote location of the sites. One of the sites was located entirely on private property.
Several activities were completed to assess the suitability of the proposed slope stabilization measures including: assessment of water levels and velocities within the creek, topographic survey in remote area with challenging conditions, constructability review, natural environment study, geotechnical investigation, slope stability analysis, Stage 1 archeological assessment, tree inventory and consultation with environmental regulatory agencies. Following the detailed assessments, Robinson Consultants Inc. completed the preliminary and detailed design including site access plans, temporary flow control, landscaping plans, and guiderail design. Robinson Consultants Inc. also prepared tender documents in accordance with the City of Ottawa standards, attended meetings with private property owners, and obtained the necessary environmental approvals.
