Your Expert Excavation Contractor in Milwaukie, OR

Four generations of experience delivering reliable sitework for commercial and residential developers.

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Oregon and Washington

The Partner of Choice for Milwaukie Developers

At Legacy 6 Inc, we build lasting relationships, not just development sites. Our 80%+ repeat client rate is a direct result of our unwavering commitment to teamwork, proactive communication, and delivering exceptional results on every project. As a family-owned business, we carry a four-generation legacy in the heavy civil excavation industry, bringing unparalleled experience and a personal stake in the success of your project in Milwaukie.

We operate with a deep sense of integrity and discipline. As a certified Service-Disabled Veteran-Owned Small Business (SDVOSB), we bring a mission-focused, team-first approach to every job site. For our clients in Milwaukie, this means you get more than a contractor; you get a dedicated partner who understands the importance of planning, precision, and execution. We treat your project as if it were our own, ensuring we uphold the highest standards of quality and professionalism from start to finish.

Comprehensive Sitework and Excavation Services
in Milwaukie

Our dedicated, in-house team and extensive fleet allow us to manage every phase of your project in Milwaukie, from initial clearing to final grading. We ensure your project starts on a solid foundation, providing a single, reliable source for all your site development needs. This integrated approach eliminates coordination headaches and keeps your timeline on track.

Commercial Sitework & Excavation

We specialize in preparing commercial sites across Milwaukie for vertical construction. Our expert team creates precisely graded building pads for structures ranging from 5,000 to 500,000 square feet, ensuring a stable and level base for your investment. Our comprehensive sitework and grading in Milwaukie includes meticulous excavation for foundations, parking lot preparation, and creating effective drainage solutions. We have the experience and equipment to handle projects for retail centers, industrial facilities, and office complexes, ensuring your site is perfectly prepared and runs on schedule.

Residential Site Development

Legacy 6 Inc. is the ideal partner for residential developers working on subdivision and apartment complex projects in the growing Milwaukie community. We have extensive experience developing sites for 10 to 100 lots, managing everything from mass excavation and earthmoving to the construction of essential infrastructure. Our services include building access roads, grading for home sites, and preparing the entire area for the subsequent phases of construction, laying the groundwork for thriving new neighborhoods.

Land Clearing & Demolition Services

Before new development can begin, the old must be cleared away safely and efficiently. Our professional demolition services in Milwaukie cover a full range of needs, including complete structural demolition, interior demolition, and concrete removal. We also handle specialized tasks like septic and well abandonment, ensuring compliance with all environmental and municipal regulations. Our team methodically clears your site of debris and prepares it for the next phase, providing a clean slate for your vision.

Underground Utilities Milwaukie, OR

The long-term success of any development hinges on properly installed infrastructure. We are experts in the installation, repair, and maintenance of essential underground utilities. Our team has deep familiarity with local Milwaukie and Clackamas County codes, ensuring that all water mains, sewer lines, and storm drainage systems we install are fully compliant and built to last. We manage trenching, pipe laying, and backfilling with precision, preventing future issues and ensuring reliable service for the property.

Retaining Walls & Earthwork

The varied terrain of the Willamette Valley often requires engineered solutions for soil stabilization and landscape management. Our team designs and constructs durable, structurally sound retaining walls that prevent erosion and maximize usable land on your property. We handle all aspects of earthwork, from mass grading to detailed contouring, shaping your site to the exact specifications required by your project plans and the local topography.

Material & Equipment Trucking

Control over logistics is critical to meeting project deadlines. With our private fleet of over 150 units—including Super Solos, Truck and Pups, Transfers, Side Dumps, End Dumps, and Lowboys—we manage all material and equipment logistics internally. This eliminates reliance on third-party schedules and potential delays, ensuring that aggregates, soil, and heavy machinery arrive and depart from your Milwaukie job site exactly when needed, keeping the entire project moving forward seamlessly.

Our Work in Milwaukie

Commercial Sitework

Project Scope:

Project Details:

Legacy 6, Inc. recently completed a Commercial Sitework & Demolition project in Lake Oswego, OR, preparing a large property for redevelopment. The work involved clearing dense vegetation, demolishing aging structures, disconnecting utilities, and removing debris to deliver a safe, build-ready site. Despite challenges such as limited site access, strict county permitting requirements, and the discovery of hidden underground features, Legacy 6 successfully managed the project.

Underground Utilities

Services Rendered:

Project Details:

Legacy 6, Inc. successfully executed a Underground Utilities & Excavation project in Lake Oswego, OR, transforming raw land into a fully prepared site for commercial development. The team handled excavation, grading, underground utilities, and erosion control with precision, overcoming soil and drainage challenges to deliver a safe, compliant, and construction-ready foundation for future builds.

Building Trust with Every Project

Our high rate of repeat business is not an accident; it’s built on a foundation of trust, transparent communication, and consistent performance. We are proud of the strong relationships we’ve cultivated with general contractors and developers across the Portland metro area, including with partners in communities like Milwaukie, Oregon City, and Gladstone.

Start Your Milwaukie Project with a Proven Partner

Ready to discuss your commercial or residential development in Milwaukie? Our team is standing by to bring four generations of experience, a massive in-house fleet of equipment, and an unwavering commitment to teamwork to your project. Let’s build something great together.

Phone: 360.690.5339

Email: LT@legacy6inc.com

OR CCB: 217133

Frequently Asked Questions About
Milwaukie Sitework Projects

As a full-service heavy civil excavation contractor, we manage a wide range of projects in Milwaukie and the surrounding areas. Our primary focus is on large-scale residential subdivisions (typically 10-100 lots), apartment complexes, and commercial site development for retail, office, and industrial buildings (from 5,000 to 500,000 square feet). Our comprehensive services cover the full spectrum of site preparation, including mass excavation, fine grading, utility installation, demolition, and road construction.

Yes. We are a full-service contractor, which is a major advantage for our clients. We provide comprehensive demolition services in Milwaukie, safely clearing existing structures and preparing the land for new construction. Following demolition, our teams seamlessly transition to expert sitework and grading. This integrated approach ensures there are no hand-off delays or communication gaps between different contractors, leading to a more efficient and streamlined project from start to finish.

Absolutely. Our project managers and superintendents possess extensive, hands-on experience working in Milwaukie and throughout Clackamas County. We have a thorough understanding of the specific codes, inspection processes, and regulations governing the installation of underground utilities. We ensure that every water, sewer, and storm drainage system we install not only meets but often exceeds local requirements, guaranteeing a compliant and durable infrastructure for your development.

Safety is our highest priority and the foundation of our company culture. We are uncompromising in our commitment to the health and safety of our team, our clients, and the public. We maintain a comprehensive safety program that exceeds OSHA and L&I requirements, which includes daily site inspections and weekly all-hands safety meetings. Furthermore, we foster a “Zero Accident Mindset” by empowering every team member with the authority and responsibility to stop any job process if they identify a potential hazard.

Value engineering is our practice of leveraging our four generations of industry experience to enhance your project’s value. We proactively look at your plans from an owner’s perspective to identify potential issues, improve efficiency, and find cost-effective solutions before they become costly problems. For example, our deep knowledge of local soil conditions might allow us to suggest a slight adjustment to a foundation’s location to avoid difficult excavation, saving you significant time and money. This service isn’t an add-on; it’s simply how we do business, ensuring you get the best possible outcome for your investment.

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