box culvert installation

Bothar Construction, LLC is a family owned construction company since 1999 with over 100 years of combined experience. It provides prime and subcontract construction services for commercial, municipal and state agencies and is qualified to work in New York, Pennsylvania, and North Carolina.

airport runway constructionbridge rehabilitationcrack & joint sealingdrainage installationexcavationmillingpavingsawingsite grading

C.H. & D. Enterprises, Inc. is a Pennsylvania-based general contractor founded in 1984, specializing in heavy, highway, and design/build projects. It acts as both General Contractor and Subcontractor on transportation and private sector projects throughout Pennsylvania, Ohio, West Virginia, and Maryland. Services include bridges, box culverts, inlets, concrete, drainage, excavation, clearing & grubbing, commercial landscape construction, and road and aggregate hauling.

bridge constructionClearing & Grubbingdesign/builddrainageexcavationgeneral contractingheavy highway constructionlandscapingsubcontractingtrucking/hauling

Combine Construction Inc. was incorporated in 1988 and operates in Sharon, PA, with Antonetta Combine serving as President. It is a full service general contractor and turn key operation specializing in commercial, industrial, and municipal contracts, serving both public and private sectors. The company is a pre-qualified DBE business partner with PennDOT and ODOT and is certified as a Women Business Enterprise.

bridge beam placementcast-in-place concretedemolitiongeneral contractingland clearingretaining wallssaw cuttingsite workslipform pavingtruckingutility construction

Contri Construction Company started operations in 1970 as a small company in Reno, Nevada and is now based out of Las Vegas. The company completes heavy civil projects in Arizona, California, Nevada, Oregon, and Utah, including pipelines for water, sewer and storm drain systems, mass grading, concrete structures, pump stations, reservoirs, and weirs. It has been a union signatory contractor since 1970 and is licensed to do work in Nevada and California.

concrete structuresheavy civil constructionmass gradingpipeline installationpump station constructionreservoir constructionwet utility installation

Frontier Environmental Services was founded in 1996 to provide specialized construction, engineering, and remedial services to industry and the environmental and safety regulated community. It provides design-build services specifically formatted for environmentally sensitive reclamation activities and operates out of its corporate headquarters in Arvada, CO.

bottomless arch culvert installationboulder drop structuresconstructionDesign-Build Servicesengineeringhorizontal directional drillingmine waste reclamationnatural channel designremedial servicesrevegetationsoil remediationstreambank stabilizationstream restoration design