Designs should reflect a vision, provide best product value, and protect the public’s health, safety and welfare.
Roadway and parking lot models are designed to fit site conditions, avoid retaining walls, meet ADA requirements, satisfy curb-to-pad elevation thresholds, and maximize surface storm water conveyance. Well-designed roadway and parking lot models provide gradual curb return transitions and complimentary intersecting travel way grades. Surface models may be loaded into GPS machine control equipment for excavating and finishing.
Storm drainage is a complex consideration for site development and often determines development feasibility. Hydrologic and Hydraulic methods have experienced little change during the last several decades. Soil Conservation Service, Bureau of Reclamation, and other accepted engineering methods used to determine discharge, routing storage, storm probability, probable maximum flows, and conveyance capacities applicable thirty years ago are still cited in today’s design regulations. However, regulations have become increasingly complicated and require detailed reporting. Land development projects are often required to mitigate increased runoff, demonstrate no impact for a specified distance downstream, and provide storm water pollution control facilities. Storm drainage software has evolved to address these new requirements by leveraging dynamic wave solvers with implicit solutions, two-dimensional flow engines, geospatial referencing, GPU processing, and SQL scenario management.These advancements allow storm drainage infrastructure performance to be quickly optimized and reduce soft and hard costs.
Domestic Water Distribution
The ability of domestic water distribution facilities to adequately convey water for domestic consumption and fire protection is affected by existing static, residual and operational pressures and proposed distribution line sizes. These pressures are obtained from the respective Public Works department, fire-flow tests conducted near the proposed site, and with recorders to log time v. pressure data. Fire flow results, time-pressure data and projected demands are used to adequately size proposed distribution facilities.
Sanitary Sewer Collection
Existing sanitary sewer facility capacity is analyzed, if necessary, using existing load data and proposed pattern loads.This analysis considers load timing and identifies critical links within a network. Proposed sanitary networks are designed to convey future loads from the upper sewer shed and minimize excessive depths. Facility over-sizing and off-site connection costs are provided for cost-sharing agreements between the developer and utility owner.