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Featured Projects

Read about our exemplary projects to learn how our consultants work across regions, practices, and markets to deliver exceptional solutions, without exception.

All Projects

Lower San Joaquin River Phase C-2 Geotechnical Design and Analysis
Geotechnical

Lower San Joaquin River Phase C-2 Geotechnical Design and Analysis

The Lower San Joaquin River Phase C-2 project is part of a larger flood-risk-management program to reduce flood risk in ...
Independent Review of the Cost, Schedule, and Strategic Readiness of an International Nuclear Research Facility
Mission Success

Independent Review of the Cost, Schedule, and Strategic Readiness of an International Nuclear Research Facility

A new advanced nuclear materials research facility under design and construction is a flagship initiative at a major international nuclear ...
Independent Review of a Contractor Assurance System
Mission Success

Independent Review of a Contractor Assurance System

Longenecker & Associates, a Geosyntec Company, recently conducted an independent review of the contractor assurance system (CAS) at a prominent national laboratory ...
Independent Review of Key Performance Indicators and Extent of Condition of an International Nuclear Research Facility
Mission Success

Independent Review of Key Performance Indicators and Extent of Condition of an International Nuclear Research Facility

A major international organization is undertaking design and construction of a new major nuclear materials facility that will become the ...
Enhancing Event Management and Human Performance at a National Lab
Mission Success

Enhancing Event Management and Human Performance at a National Lab

A premier United States Department of Energy multidisciplinary science and engineering national laboratory engaged Longenecker & Associates, a Geosyntec Company, to ...
Defining End States for International Nuclear Decommissioning: Applying Lessons from the United States Department of Energy
Mission Success

Defining End States for International Nuclear Decommissioning: Applying Lessons from the United States Department of Energy

As Japan progresses with nuclear decommissioning, there is a recognized need to establish clear end states for its sites. Longenecker & Associates, a Geosyntec ...
Corrective Actions for Low Oxygen Alarm Events at a National Laboratory
Mission Success

Corrective Actions for Low Oxygen Alarm Events at a National Laboratory

Longenecker & Associates, a Geosyntec Company, was engaged by national laboratory management to conduct an effectiveness review (ER) to assess the ...
Independent Review of the Formality of Operations for a Major Pulsed Power Facility
Mission Success

Independent Review of the Formality of Operations for a Major Pulsed Power Facility

A prominent national laboratory operating a critical pulsed-power research facility has been engaged in a multiyear effort to enhance the formality of its ...
Geotechnical Engineering and Structural Support Review for Ethylene Plant Construction
Geotechnical

Geotechnical Engineering and Structural Support Review for Ethylene Plant Construction

Geosyntec was retained by the project owner to provide a geotechnical and structural review for an ethylene plant being constructed ...
Engineering and Construction Services for the Center Hill Dam Foundation Remediation in DeKalb County, Tennessee
Geotechnical

Engineering and Construction Services for the Center Hill Dam Foundation Remediation in DeKalb County, Tennessee

Center Hill Dam is one of the multipurpose projects that make up the Corps of Engineers' system for development of ...
Geotechnical Engineering Support for Wolf Creek Dam Deep Barrier Wall Construction
Contaminated Sites, Geotechnical

Geotechnical Engineering Support for Wolf Creek Dam Deep Barrier Wall Construction

The Wolf Creek Dam is located on the Cumberland River in the western part of Russell County, Kentucky. The dam ...
Evaluating and Practicing Innovative Conservation (EPIC) Project Missouri Innovative Nutrient Trading (MINT) Project
Water and Natural Resources

Evaluating and Practicing Innovative Conservation (EPIC) Project Missouri Innovative Nutrient Trading (MINT) Project

The U.S. Department of Agriculture Natural Resources Conservation Service (NRCS) and Missouri NRCS offices awarded Conservation Innovation Grants to the ...
H-Pile Foundation Installation Oversight and Load Testing
Geotechnical

H-Pile Foundation Installation Oversight and Load Testing

Newport Naval Base in Newport, Rhode Island, had selected a site for a bulk fuel storage tank previously occupied by ...
Technical Support for a Construction Claim Regarding Historic Fill
Geotechnical

Technical Support for a Construction Claim Regarding Historic Fill

During construction of the massive underground highway project in Boston known as the "Big Dig," the Massachusetts Transportation Authority (MTA) ...
Suspended Geomembrane Cutoff Wall
Geotechnical

Suspended Geomembrane Cutoff Wall

Groundwater at a site in central Maine had become contaminated from past activities at the site. In order to make ...
Interactive GIS Application Development and Implementation for Chickamauga Lock Grouting Activities
Contaminated Sites

Interactive GIS Application Development and Implementation for Chickamauga Lock Grouting Activities

The new 110' x 600' Chickamauga Lock is being designed and constructed by the Nashville District, U.S. Army Corps of ...
DNAPL Investigation in Fractured Bedrock and In Situ Chemical Oxidation for Remediation of Trichloroethene
Contaminated Sites

DNAPL Investigation in Fractured Bedrock and In Situ Chemical Oxidation for Remediation of Trichloroethene

Since 1956, the Tenneco Automotive facility has been producing automotive components at the project location near Hartwell, Georgia. The site ...
Decommissioning and Demolition Plans and Mercury Containment Removal at a Former Chlor-alkali Manufacturing Plant
Contaminated Sites

Decommissioning and Demolition Plans and Mercury Containment Removal at a Former Chlor-alkali Manufacturing Plant

The LCP Holtrachem Site is a former chlor-alkali manufacturing facility which used the mercury cell process, located along the Cape ...
Site Investigation and Remediation of NAPL and Sampling and Analysis Plan Development for a Former Creosote Storage Facility
Contaminated Sites

Site Investigation and Remediation of NAPL and Sampling and Analysis Plan Development for a Former Creosote Storage Facility

The Bernuth-Lembcke site is a 3.5-acre parcel of land situated in an industrial setting near the Savannah River in Savannah, ...
CAP Approach to Site and Stream Remediation and Reduction of Hydrocarbons in Fractured Bedrock Aquifer at a Former Manufactured Gas Plant
Contaminated Sites

CAP Approach to Site and Stream Remediation and Reduction of Hydrocarbons in Fractured Bedrock Aquifer at a Former Manufactured Gas Plant

At the Colonial Pipeline Gaffney booster station site, the overburden and bedrock aquifers beneath the site have been impacted with ...
A river with gentle ripples reflects trees with autumn foliage and a partly cloudy sky. On the far bank are industrial buildings and a crane, surrounded by green and orange trees. Branches frame the scene.
Coastal & Waterfront, Environmental Management, Geotechnical

Multimodal Facility Waterfront Bank Stabilization

In 2016, five areas of significant bank erosion were discovered near the Merrimack Valley Regional Transit Authority (MVRTA) operating facility ...
A reservoir with a black plastic liner along the bank, surrounded by grassy hills and trees under a blue sky with light clouds.
Water and Natural Resources

Mule Creek Dam Reservoir Inundation Mapping

Mule Dam is located near the city of Ione, in Amador County, California. The 540 acre-feet reservoir holds treated effluent ...
A collage of dashboard screenshots and charts showing facility data, metrics, maps, and sustainability indicators, with a central blue diagram labeled Facility X Dashboard linking various operational aspects.
Water & Wastewater, Water and Natural Resources

LA County Metropolitan Transportation Authority

The LA County Metropolitan Transportation Authority (Metro) requested sustainability engineering services for water resources, conservation and compliance. Under legal obligations ...
A large yellow dump truck is being loaded with soil or rocks by a massive excavator at an open-pit mining site, surrounded by dark earth and rocky terrain.
Environmental Management

Environmental and Management System Support, Multiple Locations in the United States

Arch Resources (Arch) is a leading U.S. producer of metallurgical products for the global steel industry, and the leading supplier ...
Power plant
Contaminated Sites, ESG Due Diligence

Confidential Investor Due Diligence for Data Center Power Plant

In support of the rapid expansion of American digital and energy infrastructure, an investor sought expert guidance before acquiring a ...
A dirt path winds through a dense forest of tall, straight trees with reddish-brown trunks, surrounded by lush green foliage and bathed in warm, golden sunlight filtering from above.
Environmental Management, Water & Wastewater

Waterfront Sustainable Aviation Fuels (SAF) and Power Plant

Strategic Biofuels is building Louisiana Green Fuels (LGF), a carbon-negative waterfront facility in the Port of Columbia, Louisiana, that will ...
Aerial view of a large industrial facility with multiple long warehouse buildings, surrounded by farmland, roads, parking lots, and green fields in a rural area.
Air Quality, Environmental Management

Aemetis Riverbank Biofuels Facility Air and Greenhouse Gas Permitting Support

As part of the Riverbank Army Ammunition Plant Base Reuse Plan, the City of Riverbank wished to create a unique ...
Aerial view of an industrial oil refinery complex with large storage tanks, a cargo ship docked at a pier, cranes, and various buildings next to a body of water under a partly cloudy sky.
Air Quality, Environmental Management, Water and Natural Resources

Ammonia Facility and Subsea Hydrogen Pipeline Development

Gulf Coast Ammonia (GCA) is an agricultural and specialty chemical manufacturing facility that has been in development since 2017. With ...
A wide, winding river flows between densely forested green hills under a clear blue sky. The landscape is lush and serene, with layers of trees and gentle slopes reflected in the calm water.
Environmental Management, Water and Natural Resources

e-Fuels Feasibility Study

TES (Tree Energy Solutions) commissioned Geosyntec to provide front-end environmental studies and permitting and siting services during the conceptual and ...
Construction equipment
Waste Management

Water Supply Planning and Delivery for Hillcrest Country Club

Hillcrest Country Club engaged Geosyntec to help create and implement a water master plan for their property. The objective of ...
Lower San Joaquin River Phase C-2 Geotechnical Design and Analysis

Lower San Joaquin River Phase C-2 Geotechnical Design and Analysis

The Lower San Joaquin River Phase C-2 project is part of a larger flood-risk-management program to reduce flood risk in ...
Independent Review of the Cost, Schedule, and Strategic Readiness of an International Nuclear Research Facility

Independent Review of the Cost, Schedule, and Strategic Readiness of an International Nuclear Research Facility

A new advanced nuclear materials research facility under design and construction is a flagship initiative at a major international nuclear ...
Independent Review of a Contractor Assurance System

Independent Review of a Contractor Assurance System

Longenecker & Associates, a Geosyntec Company, recently conducted an independent review of the contractor assurance system (CAS) at a prominent national laboratory ...
Independent Review of Key Performance Indicators and Extent of Condition of an International Nuclear Research Facility

Independent Review of Key Performance Indicators and Extent of Condition of an International Nuclear Research Facility

A major international organization is undertaking design and construction of a new major nuclear materials facility that will become the ...
Enhancing Event Management and Human Performance at a National Lab

Enhancing Event Management and Human Performance at a National Lab

A premier United States Department of Energy multidisciplinary science and engineering national laboratory engaged Longenecker & Associates, a Geosyntec Company, to ...
Defining End States for International Nuclear Decommissioning: Applying Lessons from the United States Department of Energy

Defining End States for International Nuclear Decommissioning: Applying Lessons from the United States Department of Energy

As Japan progresses with nuclear decommissioning, there is a recognized need to establish clear end states for its sites. Longenecker & Associates, a Geosyntec ...
Corrective Actions for Low Oxygen Alarm Events at a National Laboratory

Corrective Actions for Low Oxygen Alarm Events at a National Laboratory

Longenecker & Associates, a Geosyntec Company, was engaged by national laboratory management to conduct an effectiveness review (ER) to assess the ...
Independent Review of the Formality of Operations for a Major Pulsed Power Facility

Independent Review of the Formality of Operations for a Major Pulsed Power Facility

A prominent national laboratory operating a critical pulsed-power research facility has been engaged in a multiyear effort to enhance the formality of its ...

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