dam rehabilitation

Allen Engineering and Science provides civil and environmental engineering, science, and construction services together under one roof. Serving clients across varied public and private sectors, the firm delivers solutions for ecological services, environmental remediation and restoration, public and private infrastructure improvements, and waste management. The company also refers to itself as AllenES.

civil engineeringcomplianceconstructiondesignecological assessmentenvironmental engineeringEnvironmental RemediationFlood controlmitigationpermittingPlanningrestorationstream channel restorationwaste managementwetlands mitigation

ASI Construction LLC (ASI) is a self-performing heavy-civil contractor specializing in the construction and rehabilitation of dams, hydroelectric and renewable energy facilities, pipelines, and other major water resource projects. ASI personnel have constructed over 185 dam and water resource projects, including 40 new dams and 118 dam rehabilitation projects. ASI is a wholly-owned subsidiary of Shaft Drillers International LLC, based in Mt. Morris, Pennsylvania.

aggregate production and processingconcrete demolitionconcrete formwork and placementconcrete productiondam constructiondewateringearthworkfoundation preparationpipeline constructionreinforcing and structural steel erectionriver diversionrock excavation and blastingroller compacted concrete (RCC) construction

Associated Construction Partners (ACP) is a 100% employee-owned water and wastewater infrastructure contractor based in Boerne, Texas. Since 2008, ACP has built and rehabilitated water and wastewater treatment plants, pump and lift stations, distribution systems, and dams for municipalities, water authorities, and private industry across Texas, completing 150+ projects statewide.

construction managementcontrols & SCADAdistribution systemsEnvironmental Remediationgate replacementsinstrumentationprocess pipingpump and lift station constructionrehabilitationsiteworkstructural concretewater and wastewater treatment plant construction

Crane-Hogan Structural Systems, Inc. is a general construction firm founded in 1975 by Daniel C. Hogan and James R. Crane. It is a New York State Corporation and Union Contractor working mainly in Central and Western New York, with offices in Spencerport, NY (main office) and Syracuse, NY (branch office). The firm has completed over 800 projects and specializes in new construction and rehabilitation of highways, bridges, parking garages, locks, buildings, and sewer and water treatment plants.

Bridge Construction & RehabilitationBuilding Construction & RehabilitationBuilding Plaza ConstructionCulvert Construction & Rehabilitationdesign/bid/builddesign/buildLock RehabilitationParking Garage Construction & RehabilitationPort & Marina ConstructionReservoir ImprovementsTunnel Construction & RehabilitationWater Treatment Facility Construction & Improvements

Flyway Excavating is a waterway improvement and environmental excavation company serving the Mid-Atlantic region for more than 30 years. It specializes in stream restoration, wetland restoration, dam removal and rehabilitation, bridges and culverts, and water quality basins, as well as environmental excavation and construction services such as site preparation, building excavation, parking lots and garages, parks and athletic fields, road construction, and plazas and streetscapes.

bridge and culvert excavation and structure installationcross vanesdam removalenvironmental excavationgrading and plantingimbricated riprapJ hookslog vanesroot wadsstep poolsstream restorationwetland restoration

Heeter Geotechnical Construction Who We Are Heeter Geotechnical Construction LLC (HGC) is a heavy civil contractor specialized in the construction and rehabilitation of dams and other water resource projects. Since its inception, HGC has executed projects throughout the US for the clients we service.Our History HGC’s origins date to 1969 when Dave Heeter formed Heeter Construction Inc. with one D4 dozer and a flatbed truck! Since that time, “Heeter Construction” has grown into a multi-faceted Heavy Civil General Contractor capable of handling the most complex projects and toughest industry challenges.In November of 2014, Heeter Construction Inc. was acquired by Shaft Drillers International LLC (SDI), resulting in HGC joining the SDI family of companies.HGC has the ability to handle any project of any size while still staying true to our principle of taking pride in our work and our.

dam constructiondrilling and blastinggrout curtain cutoff wall installationgrouted steel pipe pile installationhigh capacity anchor installationline drillingoverburden excavationplatform fabrication and erectionprecision presplittingrock excavationshotcrete slope stabilizationsoil nail installation

J.H. Maxymillian, Inc. is a heavy civil and environmental remediation firm serving the private, federal, state and municipal sectors throughout the Northeast. Founded by James H. Maxymillian, P.E. in 1969, the company has completed thousands of civil and environmental contracts and is based in Pittsfield, Massachusetts. In 2025 it joined Wm. J. Keller & Sons Construction Corp.

asphalt pavingbackfillcompactionconcrete workdeep excavationdemolitionearth support systemsEnvironmental Remediationgradinghorizontal directional drillingprecision hand excavationtrenchingwater management

The King Co., Inc. is a Great Lakes region marine construction and dredging company serving the region since 1983. It provides marine construction, dredging, earth retention systems, foundation piling, deep foundations, and dam rehabilitation, handling projects from preliminary concept through engineering, design, and construction. It serves private property owners, commercial contractors, and all levels of government, and has over 50 employees.

auger cast pilescaissonsdeep foundationsdesigndredgingearth retentionengineeringhelical piersmarine constructionmicropilespermitting guidancepile drivingshoreline protection and restoration

Kubricky Construction Corp. is a civil construction company and a member of the D.A. Collins Family of Companies, based in Queensbury, NY. It handles projects of various sizes across civil, marine, and industrial construction, including design-build projects, dam rehabilitation, bridge construction, pavement services, site development, and utility solutions.

bridge constructionbridge rehabilitationbridge replacementcivil constructionconcrete foundations and repairdesign-buildindustrial constructionlandfillsmarine constructionmass excavation and support (sheeting/piles)precast erectionroad reconstructionsite developmentsolarwastewater, water, and industrial plant workwetland mitigationwind

Kyle Conti Construction (KCC) is a privately-owned, fourth-generation construction firm founded in 2000 and headquartered in Hillsborough, NJ. It is an award-winning general contractor and industry leader in heavy civil and environmental construction and infrastructure development, serving the northern Mid-Atlantic region in both the private and public sectors.

bridges and roadsdesign/buildenergy and utilitiesenvironmental constructionheavy civil constructioninfrastructure developmentports and marinerails and transitrefineries and industrialSustainability