Featured Projects

Bluffdale Independence Well

Bluffdale Independence Well

The City of Bluffdale revamped an old irrigation well and built a new well house to match the newly constructed apartments surrounding it. The project included a temporary pumping setup and a temporary water right to immediately being operating until permanent arrangements could be made.

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Saratoga Springs Irrigation Pond and Pump Station

Saratoga Springs Irrigation Pond and Pump Station

In order for Saratoga Springs, Utah, to continue to grow at its current rate, additional storage was needed in its pressurized irrigation system. HAL provided design and construction management services for a 17-acre-foot concrete-lined storage pond and a 3,200 gallon-per-minute pump station.

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Saratoga Springs Marina Pump Station

Saratoga Springs Marina Pump Station

HAL planned, designed, and oversaw construction of a 10,000 gpm irrigation pump station adjacent to Utah Lake. The new project provides water to the City’s growing southern area and allows the City to utilize Utah Lake water rights rather than canals.

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CWP Wells 8, 9, and 10

CWP Wells 8, 9, and 10

HAL was recently selected to design three new deep, large-diameter wells for the Central Utah Water Conservancy District, extending HAL’s role into the next phase of the largest groundwater development project in Utah.

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Provo City 4 MG/6 MG Water Tanks and 24″/30″ Pipelines

Provo City 4 MG/6 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.

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CWP High-Head Wells Project

CWP High-Head Wells Project

The Central Utah Water Conservancy District contracted HAL to plan, design, and manage a groundwater development project that will supply water to some 160,000 people. The project is the largest of its kind in Utah, with some of the state’s largest and deepest wells.

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Kearns Improvement District 5 MG Tank and 30″ Pipeline

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.

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Columbia River Winter Operations Study

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.

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Other Projects

Bluffdale Triangle Tank

Bluffdale Triangle Tank

The City of Bluffdale, Utah, is now building a 4-million-gallon triangular water tank that HAL designed to fit in a tight space. The tank and accompanying pipeline will improve service in the lower parts of the city.

Read more: Bluffdale water system begins constructing “Triangle Tank”

Sandy City Fluoride Overfeed Investigation

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.

Read more: HAL investigates Sandy City fluoride incident

Clean Harbors’ Grassy Mountain Hazardous Waste Facility

Clean Harbors’ Grassy Mountain Hazardous Waste Facility

HAL designed, permitted, and oversaw construction of a new hazardous waste landfill cell, the first in Utah in 25 years.

Read more: HAL oversees construction of new hazardous waste landfill

Salt Lake City Storm Drain Master Plan

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

Humboldt River Floodplain Analysis

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.

Water Rights Support

Water Rights Support

For over 40 years HAL has provided water rights engineering support to municipalities, private clients, and over 20 legal firms in Utah and Idaho. Services have included due diligence and site investigations supporting land purchases, surface and groundwater studies, water use evaluations, water right ownership evaluations, new filings, diligence claims, change applications, proof of appropriation, proof of beneficial use, and water right hearing support.

Tooele County Wastewater Regionalization Plan and Septic System Density Study

Tooele County Wastewater Regionalization Plan and Septic System Density Study

After years of rapid development of areas without sanitary sewer systems, Tooele County asked HAL to evaluate the impact of septic system discharges into groundwater. HAL employed hydrogeologic data and modeling of horizontal, vertical, and dispersion flows in a mass-balance approach with risk analysis to determine septic system densities that would prevent excessive groundwater nitrate concentrations.

Summit County Septic System Density Studies

Summit County Septic System Density Studies

Summit County Health Department retained HAL to evaluate the Henefer Valley, Coalville/Hoystville/Wanship Valley, and Kamas Valley aquifer systems to determine appropriate septic system densities to prevent excessive groundwater quality degradation. HAL developed a risk-based approach to the mass balance and further supported the justified septic system density limitations through additional research.

Moab Water Master Plan, CFP, IFFP, and IFA

Moab Water Master Plan, CFP, IFFP, and IFA

The City of Moab is experiencing considerable pressure from new residential and commercial growth. HAL partnered with Zions Public Finance for a series of plans and assessments. HAL performed planning and modeling for the capital facilities plan (CFP) and impact fee facility plan (IFFP). Zions Public Finance took HAL’s IFFP to the next step by preparing an impact fee assessment (IFA) and rate study.

Mount Olympus Improvement District Wastewater Master Plan

Mount Olympus Improvement District Wastewater Master Plan

The Mount Olympus Improvement District provides wastewater collection services for over 114,000 residents. HAL assisted the District in preparing a master plan to assess current conditions in the existing wastewater collection system, identifying needed improvements, analyzing impact fees, planning for future growth, and developing a list of capital facilities that will be needed.

Springville City Wastewater Collection System Master Plan

Springville City Wastewater Collection System Master Plan

Springville City provides wastewater collection services for 30,000 residents. HAL assisted the City in preparing a master plan to assess current conditions in the existing wastewater collection system, identifying needed improvements, planning for future growth, and developing a list of capital facilities that will be needed.

Red Fleet Reservoir Fish Screen

Red Fleet Reservoir Fish Screen

HAL assisted the Utah Division of Wildlife Resources with design review and construction support for a new fish screen at Red Fleet Reservoir near Vernal, Utah. The screen keeps non-native game fish from entering the Colorado River system where they would otherwise compete with endangered species.

Read more: HAL helps protect endangered fish in Colorado River

Litigation Support

Litigation Support

HAL provides engineering litigation support to many local and regional attorneys and legal firms. Services include historic or projected flood conditions, flood damage investigation, post-fire runoff evaluation, flood debris retention, mine tunnel flows, canal use rights, irrigation demand, well failures, surface and groundwater interference, wetland creation, nuisance water, engineer’s duty and professional conduct, property boundary disputes, and development potential and land condemnation.

Spanish Fork Pole Canyon Septic System Density Study

Spanish Fork Pole Canyon Septic System Density Study

HAL prepared a Septic System Density Study for the Pole Canyon drainage area, which is the recharge area for Spanish Fork City’s Cold Springs. HAL researched historic water quality data and performed water quality sampling for comparison to determine the impact of existing septic systems in Pole Canyon on the springs. A detailed hydrogeologic evaluation coupled with the water quality data provided a basis for determining septic system density limits that would protect the City’s drinking water source from excessive water quality degradation.

Arnold Hollow Septic System Management Program

Arnold Hollow Septic System Management Program

HAL helped Herriman City develop a management program for septic systems within the Arnold Hollow drainage southwest of the City. Development within Arnold Hollow is a concern to the City because it is the recharge area for the City’s drinking water springs and there are no sewer collection facilities in the area. The program included research and evaluation of existing water quality, characterization of groundwater flow conditions, establishment of maximum septic system densities, and development of a program for approval of selected alternative septic systems that reduce nitrate concentrations in septic system effluent.

Central Utah Water Conservancy District Remaining Safe Yield

Central Utah Water Conservancy District Remaining Safe Yield

HAL completed the Remaining Safe Yield Report for Central Utah Water Conservancy District to characterize aquifer conditions, recharge sources, and aquifer discharges within the Juab Valley and Southern Utah Valley. This study included detailed reconnaissance of historical and existing well withdrawals along with future withdrawal projections. Three-dimensional groundwater modeling was used to characterize groundwater flow patterns and predict impact from projected withdrawals. Stakeholder involvement was critical for establishing historical, existing, and projected future withdrawals.

Magna Water District Groundwater Management Program

Magna Water District Groundwater Management Program

HAL assisted Magna Water District with Phase 1 of a Groundwater Management Program to better manage the Barton and Haynes well fields. The study included research and evaluation of historical water quality trends and established prioritized pumping to minimize impact from perchlorate and other water quality challenges. The study also established safe withdrawal rates from the aquifer. Three-dimensional groundwater modeling was used to characterize groundwater flow patterns and predict impacts from pumping alternatives.

Magna Water Company Vulnerability Assessment

Magna Water Company Vulnerability Assessment

HAL performed the Vulnerability Assessment (VA) for all of the Water Company’s water system facilities following the Bioterrorism Act of 2002. The scope of work included assisting with the prioritization of the water system facilities, determination of the Design Basis Threat, evaluation of the consequence for the loss of each facility, evaluation of the effectiveness of the existing protection systems, calculation of the relative risk to each facility, and generation of recommendations to reduce the risk at each facility. Site visits were made to each facility to verify critical assets and existing protection systems.

South Salt Lake Vulnerability Assessment

South Salt Lake Vulnerability Assessment

HAL performed the Vulnerability Assessment (VA) for all of the City’s water system facilities following the Bioterrorism Act of 2002. The scope of work included assisting with the prioritization of the water system facilities, determination of the Design Basis Threat, evaluation of the consequence for the loss of each facility, evaluation of the effectiveness of the existing protection systems, calculation of the relative risk to each facility, and generation of recommendations to reduce the risk at each facility. Site visits were made to each facility to verify critical assets and existing protection systems.

Springville City Vulnerability Assessment

Springville City Vulnerability Assessment

HAL performed the Vulnerability Assessment (VA) for all of the City’s water system facilities following the Bioterrorism Act of 2002. The scope of work included assisting with the prioritization of the water system facilities, determination of the Design Basis Threat, evaluation of the consequence for the loss of each facility, evaluation of the effectiveness of the existing protection systems, calculation of the relative risk to each facility, and generation of recommendations to reduce the risk at each facility. Site visits were made to each facility to verify critical assets and existing protection systems.

Midvale City Vulnerability Assessment

Midvale City Vulnerability Assessment

HAL performed the Vulnerability Assessment (VA) for all of the City’s water system facilities following the Bioterrorism Act of 2002. The scope of work included assisting with the prioritization of the water system facilities, determination of the Design Basis Threat, evaluation of the consequence for the loss of each facility, evaluation of the effectiveness of the existing protection systems, calculation of the relative risk to each facility, and generation of recommendations to reduce the risk at each facility. Site visits were made to each facility to verify critical assets and existing protection systems.

Granger-Hunter Improvement District Vulnerability Assessment

Granger-Hunter Improvement District Vulnerability Assessment

HAL performed the Vulnerability Assessment (VA) for all of the District’s facilities following the Bioterrorism Act of 2002. The scope included prioritization of all of the facilities, determination of the Design Basis Threat, evaluation of the consequence for the loss of each facility, evaluation of the effectiveness of the existing protection systems, calculation of the relative risk to each facility, and generation of recommendations to reduce the risk at each facility. Site visits were made to each of the District’s facilities to verify critical assets and existing protection systems.

Bangerter Highway Three Interchange Project

Bangerter Highway Three Interchange Project

The Utah Department of Transportation is reconstructing three intersections along Bangerter Highway to improve traffic flow and safety. The new design requires relocation of existing South Valley Sewer District pipelines. HAL provided study and design of a new sewer route, plus survey, easements, stakeholder involvement, agency coordination, and services during construction.

Spanish Fork Water Master Plan

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.

Jordan River Diversion Structure

Jordan River Diversion Structure

HAL prepared designs and specifications for the Jordan River Diversion Structure Replacement. The structure, located on Utah’s Jordan River just north of 2100 South in Salt Lake City, diverts a portion of the Surplus Canal flow into the Jordan River to meet downstream irrigation requirements and control flood flows. The project features two motor-driven 10′ × 14′ radial gates, energy dissipation blocks within the gate, precast 10′ × 5′ box culverts, and downstream erosion protection.

Cache Water Restoration Project

Cache Water Restoration Project

HAL was part of a multi-firm team that designed this $18 million project in Cache County, Utah. It enclosed several canals using precast concrete box culvert, cast-in-place concrete box culvert, reinforced concrete pipe (RCP), PVC pipe, and HDPE pipe. The project also included a new diversion structure on the Logan River with fish screens and an automatic brush cleaning system. The project was designed, constructed, and opened in just over one year. In 2013 it was named “Outstanding Municipal/Utility Project” by Utah Construction & Design.

Montrose Landfill Phasing Plans

Montrose Landfill Phasing Plans

HAL provided planning for Waste Management at their Montrose, Colorado, municipal landfill that included a phasing plan through the year 2039. HAL used AutoCAD Civil 3D with an existing topographic surface to define the ultimate closure surface and determine construction phases in 5- to 10-year increments. A phased drainage plan was also defined. Waste Management used the plans to prioritize capital improvements and allocate resources to future budgets.

Peoples Canal Piping Project

Peoples Canal Piping Project

HAL planned, designed, and provided construction engineering services for the Peoples Canal Piping Project in Daggett County, Utah. The project enclosed the existing canal with nearly 8 miles of HDPE pipe with diameters ranging from 24 to 48 inches. The project met of all of its goals—including completion before the irrigation season—and has conserved water, reduced operating costs, and improved reliability. The project won an Engineering Excellence Merit Award from ACEC Utah.

Freeway Pump Station

Freeway Pump Station

This drinking water project in Draper, Utah, included design and construction of a booster pump station with two 400 horsepower, 1700 gallon-per-minute vertical turbine pumps with pump barrels. The project required geotechnical investigation, hydraulic analysis, transient surge analysis, surge tank design, building design, variable frequency drive design, and a chiller cooling system.

Winder Tank

Winder Tank

For Granger-Hunter Improvement District, HAL provided the design of a 4-million-gallon rectangular reinforced concrete storage tank and an 18-inch-diameter inlet/outlet pipeline. The project included permitting, site surveying, geotechnical evaluation, and design of the reservoir, valve vault, piping, and overflow pipeline. It also included electrical design and construction, tying into GHID’s existing SCADA system, and preparing a detailed landscape and irrigation plan to meet local requirements.

Market Station Sewer

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 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.

Barton Creek Flood Control Project

Barton Creek Flood Control Project

Davis County, Utah, selected HAL to design and assist during the construction of improvements to the Barton Creek flood conveyance system. The project included the design and construction of 3,200 feet of 9′ × 4′ box culvert placed in interstate highway and commuter rail rights-of-way. The project utilized open cutting in the 500 West underpass crossing of I-15 northbound lanes, open-cut crossing of I-15 southbound lanes, and open-cut crossing of Pages Lane.

Valley Downs and Wheeler Wastewater Pump Stations

Valley Downs and Wheeler Wastewater Pump Stations

HAL assisted with the construction of two wastewater pump stations for Granger-Hunter Improvement District. Both are of the dry well / wet well prefabricated type. The Valley Downs Pump Station includes two pumps rated at 500 gallons per minute; the Wheeler Pump Station contains two pumps rated at 650 gallons per minute. Both pump stations are approximately 30 feet deep and were constructed inside sheet piling to accommodate small construction sites in residential neighborhoods. Both feature backup power generation.