- 24/7 Emergency Municipal Services Available
Specialized excavation, concrete, and fabrication services for essential public infrastructure projects across 7 states.
ORR Inc. is a premier municipal general contracting firm delivering critical support for water systems, treatment plants, and fuel infrastructure. While many general contractors rely heavily on a fragmented network of subcontractors, we take a different approach.
We self-perform key aspects of construction, acting as a direct structural concrete contractor in Oregon and across the Pacific Northwest. Our integrated capabilities include heavy excavation and specialized metal fabrication, allowing us to maintain strict quality control, budget adherence, and schedule reliability for public agencies throughout Oregon, Washington, Idaho, Montana, Wyoming, Utah, and Nevada.
Our team brings hundreds of years of combined experience to every job site. We understand that municipal concrete and excavation services are the backbone of public utility systems. If the foundation is flawed or the pipe fabrication is imprecise, the entire system is compromised.
From complex fabricated pipe systems to massive structural concrete pours, ORR Inc. provides the technical expertise, heavy equipment, and skilled labor necessary to execute large-scale public works projects safely and efficiently.
Year Project Lifespans
Emergency Service
Self-Performed
We divide our self-performed services into three core disciplines that are essential for the successful completion of water, wastewater, and fuel system projects.
Heavy structural concrete for treatment plants, pump station wet wells, retaining walls, and equipment pads. Water-retaining structures with watertight integrity for decades of service.
Precision excavation for underground utilities, deep well installation, site preparation, trenching, grading, and dewatering for public infrastructure projects.
Custom components including OSHA-compliant catwalks, handrails, structural supports, and specialized fabricated pipe systems for municipal water facilities.
High Performance Mix
We specialize in heavy structural concrete for water and wastewater facilities. Concrete work in these environments requires a higher level of precision and durability than standard commercial construction.
Our crews are experienced in forming and pouring complex foundations for treatment plants, pump station wet wells, retaining walls, and equipment pads. We ensure every pour meets rigorous engineering specifications for durability, chemical resistance, and load-bearing capacity.
Complex concrete forming for clarifiers, tanks, and processing equipment
Watertight integrity for reservoirs, wet wells, and containment systems
Chemical-resistant concrete designed to withstand sewage gases and treatment chemicals
Compliant Safety
Precision excavation is critical for the installation of underground utilities and systems. Before any structure can go vertical, the site must be perfectly prepared.
We handle site preparation, trenching for piping, deep well excavation, and grading. Our operators are trained to work safely around existing infrastructure and in challenging terrain, ensuring a stable base for all subsequent construction.
Clearing, grading, and establishing precise sub-grade elevations for structural work
Specialized deep excavation with shoring and dewatering for well installations
Precision trenching for water, sewer, and underground piping systems
Certified Welders
As a skilled metal fabrication contractor in the Northwest, we produce custom components essential for treatment systems inside our own facilities and on-site.
This includes miscellaneous metal fabrication such as OSHA-compliant catwalks, handrails, stairways, and structural supports. We are also a specialized fabricated pipe systems contractor, creating custom pipe spools and systems tailored to unique municipal requirements.
Safety handrails, catwalks, access hatches, ladders, and structural supports
Fabricated pipe spools, manifolds, and systems for pump stations and treatment plants
Carbon steel, stainless steel, and aluminum selected for environmental conditions
See examples of our structural concrete, excavation, and metal fabrication work on municipal infrastructure projects.
Complete structural concrete work for water treatment facility including tanks, clarifiers, and equipment foundations.
Precision excavation with shoring and dewatering for underground pump station installation in challenging soil conditions.
Custom fabricated pipe spools and manifolds for high-pressure municipal water distribution systems.
Water-retaining concrete structures with precision forming and chemical-resistant concrete mixes for long-term durability.
OSHA-compliant catwalks, handrails, and access platforms fabricated for water treatment facility operations.
Complete site preparation including clearing, grading, erosion control, and utility trenching for new infrastructure.
Public agencies face unique challenges, from strict budget oversight to the need for long-term reliability. We align our services to meet these specific demands.
We build projects designed to serve the public for decades. We aim for a 30 to 50-year lifespan on our installations, minimizing the need for premature repairs and protecting taxpayer investments.
By handling excavation, concrete, and fabrication in-house, we reduce reliance on third-party subcontractors. This ensures better communication, fewer delays, and higher quality standards.
We hold specific DEQ licenses and ensure all environmental and safety regulations are strictly followed during excavation and construction, reducing liability for the agency.
Infrastructure failures do not keep office hours. We are available 24/7 for municipal agency emergency work to address critical structural or system failures immediately.
Certified Materials
The longevity of a project is dictated by the quality of materials used and the standards followed during installation. At ORR Inc., we refuse to compromise on the inputs that go into our projects.
Chemical-resistant mixes designed to withstand sewage gases and treatment chemicals with proper reinforcement and curing
High-grade stainless steel for corrosive environments, carbon steel, and aluminum selected for site conditions
AWWA and ASTM standard materials including ductile iron, PVC, and welded steel pipe for specific pressure and flow requirements
We follow a disciplined workflow to ensure transparency and efficiency from the bid phase through to project closeout.
We begin by reviewing project specifications or providing constructability consulting to assist agencies with budgeting and value engineering. Our goal here is to identify potential issues before they become expensive change orders.
Our team deploys to the site for clearing, grading, and excavation. We establish safe access, install erosion control measures, and reach precise sub-grade elevations to prepare for structural work.
To accelerate the schedule, we work in parallel. While the site is being excavated, our shop begins fabricating necessary metal components and pipe systems. Simultaneously, field crews set up concrete forms.
We execute the concrete pour, install fabricated pipe systems, and assemble structural components according to strict engineering plans. This phase is monitored closely with regular inspections of rebar placement, weld quality, and concrete slump.
After rigorous testing and inspection, we hand over a fully operational system. We ensure the site is clean, safe, and restored. We provide all necessary documentation and warranties, delivering a project built to withstand decades of use.
Ready to discuss your construction project?
ORR Inc. holds the necessary licenses and certifications to execute complex municipal projects with compliance and precision. We are committed to maintaining the highest industry standards.
#238197 - Oregon Contractors Board Licensed
#13787 - Minority Business Enterprise Certification
#30017 - Installation, Retrofit, and Decommissioning
#39644 - Soil Decontamination Services Licensed
Recipient - Excellence in Construction Industry
At ORR Inc., we view every contract as a long-term commitment to the community. We very rarely work on the same project more than once, and when we do, it is typically 30 years after the initial installation for scheduled rehabilitation. This longevity is a testament to the quality of our structural concrete and fabrication work.
We are based in Stayton, OR, and serve public agencies throughout Oregon, Washington, Idaho, Montana, Wyoming, Utah, and Nevada. While our primary focus is the Pacific Northwest, we travel extensively to support municipal projects across these seven states.
Yes. ORR Inc. is available 24/7 for Municipal Agency Emergency Work. If you have a critical failure requiring immediate excavation, pipe repair, or structural concrete repair, call us at 503-743-1000. We can mobilize quickly to stabilize the situation and restore essential services.
Yes, ORR Inc. is a COBID Certified Minority Business Enterprise (MBE #13787). Partnering with us helps public agencies meet their diversity goals while working with a highly experienced and capable general contractor.
Absolutely. We are a capable fabricated pipe systems contractor. We fabricate and install custom pipe spools, manifolds, and systems required for pump stations, wells, and treatment plants. Our in-house fabrication capabilities allow us to ensure a perfect fit, even in retrofits with tight tolerances.
Yes. Beyond general contracting, we are often hired as consultants to assist agencies with constructability reviews, budgeting, and value engineering. We leverage our field experience to suggest design modifications that can lower costs or improve the long-term durability of the project without sacrificing performance.
In addition to pipe systems, we perform miscellaneous metal fabrication essential for public works. This includes structural steel supports, safety handrails, catwalks, access hatches, and ladders. We work with steel, stainless steel, and aluminum to meet the specific corrosion-resistance requirements of the facility.
Public infrastructure projects demand more than just general construction knowledge; they require specialized expertise in the systems that keep our communities running. From deep excavation to structural concrete and custom metal fabrication, ORR Inc. delivers the quality and durability public agencies demand.
