Sandy City Fluoride Overfeed Investigation
Sandy City, Utah, experienced a fluoride overfeed at one of its drinking water wells in February 2019. HAL investigated the cause, developed a forensic hydraulic model, and prepared the final report.
Provo City 4 MG/8 MG Water Tanks and 24″/30″ Pipelines
HAL completed a detailed hydraulic analysis to refine proposed storage locations and piping modifications. Following the analysis, HAL provided engineering services for the design, bidding, and construction of two new storage tanks and transmission pipelines.
Kearns Improvement District 5 MG Tank and 30″ Pipeline
HAL helped Kearns Improvement District design and permit a new water tank and pipeline on a busy site while maintaining access, water service, and public acceptance during construction.
Salt Lake City Storm Drain Master Plan
HAL is assisting the Salt Lake City Department of Public Utilities in a storm drain master plan that responds to Utah’s new MS4 regulations and includes considerations for Low-Impact Development (LID).
Read more: HAL helps Salt Lake City and others comply with new stormwater regulations
Columbia River Winter Operations Study
The Columbia River system, lifeblood of the Pacific Northwest, contains over 60 dams. HAL assisted the U.S. Army Corps of Engineers with a winter operations study using HEC-ResSim and custom scripts.
Humboldt River Floodplain Analysis
HAL assisted Elko City, Nevada, with flood delineation and flood mitigation projects. The effort included detailed hydraulic analysis of a reach of the Humboldt River, plus analysis and design of flood mitigation measures on Metzler Wash, Culleys Gully, and Eight Mile Creek. HEC-RAS water surface profiles were used to analyze existing flooding potential and evaluate alternative mitigation measures. Letters of Map Revision (LOMRs) were successfully submitted to FEMA for the projects resulting in improved floodplain conditions.
Spanish Fork Water Master Plan
HAL completed a major update to Spanish Fork City’s Drinking Water Master Plan. Key technical issues included understanding the City’s multi-zone water distribution system, projecting water demands that consider the long-term effects of drought and conservation, developing innovative approaches to pipe network modeling, and updating the City’s GIS-based water infrastructure database.
Market Station Sewer
South Salt Lake City selected HAL to design and manage construction of 3,800 feet of 30-inch-diameter trunk sewer along Andy Avenue, 300 West, and Utopia Avenue. The project included surveying, loading calculations, hydraulic modeling, geotechnical issues, pipeline design, conflicting utilities, UTA Trax (light rail) crossing design, easements, and cost estimation.
Highland Wastewater Master Plan
Highland City, Utah, has grown rapidly in recent years, straining its wastewater collection system. Consequently, the City desired a master plan that would both address existing system deficiencies and recommend future infrastructure to support further growth. HAL completed a Wastewater Collection System Master Plan with a schedule of capital projects to meet these needs.