A Consulting Firm with a progressive

Way of Doing Business

Other Specialized Services Offered

  • Marina System Applications
  • Other Assignments

The Matrix Engineering, Inc. has been associated and involved with providing engineering services for marina applications for over 16 years with a project portfolio throughout the northwestern states (including Lucky Peak Reservoir, Lake Coeur d’ Alene, Lake Pend Oreille, Lake Chelan, Silver Lake, Coos Bay, five lakes in Glacier National Park, Columbia River, AND other waterway locations). 

The professional engineering services which Matrix Engineering, Inc. can provide beyond traditional civil engineering services include the design and engineering of marina systems and structures.  One of our unique areas of expertise is focused on marine related applications and projects.  The scope of our services in this category includes: docks, wave attenuators, floating platforms (including pumping facilities, C-stores, restrooms, working stages), gangways, ramps, public and private floating moorage systems, dry stack storage system, and boat housing systems.   Matrix Engineering, Inc. has prepared complete engineering services for these types of systems including calculations, specifications, and fabrication/engineering drawings and documents.  Many specific considerations must be assessed, addressed, and processed for marina system.  Our tenure with this professional services category has developed the confidence that our skill set is well suited for the range of services stated.

Doug Unger and Ken King have prepared many marina scope projects for agencies such as Idaho Department of Parks and Recreation, Kootenai County Parks and Waterways, Washington Department of Fish and Wildlife, Glacier National Park, Coeur d’Alene Development Company, and many commercial and private marina entities.


Many of the marina system application projects entrusted to Matrix Engineering, Inc. are beyond the geographic region of southern Idaho and involve working with new and different local government and regulatory agencies.· We have completed marina projects in Idaho, Washington, Oregon, and Montana.· Our work in this service category has required project administration and approval from a host of agencies including:· the Corps of Engineers, Idaho Department of Parks and Recreations, the Idaho Department of Lands, Fish and Game, and Fish and Wildlife agencies, local Parks and Waterway District, boat users groups, and homeowner groups.·

Our mission is to provide the product which is acceptable to the local governments and regulatory agencies while meeting the goals and objectives of the Owner.· We always make obtaining a clear understanding of the project site/location regulatory agencies a priority in the initial project phase.· We take pride in the many number of projects we have completed throughout the northwest in many different jurisdictions with many different and unique type of projects.· Much of the engineering design services we provide for marina system applications are completed in our local office.· We travel out to project sites as requested by the Owner, or as required for project administration and construction.·

The understanding Matrix Engineering, Inc. brings to the design and engineering of marina systems and structures results from many years of working in this specialized market sector.· In the execution of our engineering product we have developed and employ efficient methods and procedures proven over the test of time.· The engineering preparation of a marine structure project lends well to a systematic approach due to many common considerations and elements between projects.· We have developed the standard drawings and details, standard specifications and narrative, and analysis spreadsheets to facilitate the efficient processing of our services.· These systems and methods have developed over time and have aided our team in proficient project advancement.·

We have a long standing working association with Harrison Dock Builders and have completed many successful design/build marina projects with this long established quality partner.· Our team is well recognized by the public agencies and end users of marina application systems.· Matrix Engineering, Inc. is one of the few consulting engineering firms in Idaho that takes an interest and provides the specialized engineering associated with this service category.


Wave Attenuator Structure at Big Eddy Marina on Dworshak Reservoir, Clearwater County, ID

Matrix Engineering, Inc. is currently providing engineering services for a unique wave attenuator structure in the deep water of Dworshak Reservoir to protect the boat dock marina at Big Eddy Reservoir.  The advisory group for this project consists of a multi-agency resource group including the Corps of Engineers, Clearwater County Board of Commissioner, Idaho Department of Parks and Recreation, Clearwater County Economic Development, and the Dworshak Reservoir Boat Owner Users Group.  The scope of the project will involve structural design of a steel truss wave attenuator (~ 400-ft long), design of a deep water self adjusting anchorage system, preparation of comprehensive contract/bid documents, and agency liaison.  Construction is anticipated to commence in the spring of 2009.

Project Manager:  Douglas Unger, P.E.

The Terraces Marina & Wave Attenuator, Lake Coeur d’Alene, ID

Extension marina system including wave attenuators, boat docks, gangways, steel pile support systems for very high end condominium project.  Scope of services involved engineering of all marina structures and systems.  The project was completed in the fall of 2006, on schedule and on budget.

Project Manager:  Douglas Unger, P.E.

Two Rivers Casino Marina, Floating Dock w/ Pump Station, Two Rivers, WA     

Scope of services for this project involves designing a floating platform with duplex lift station to serve the domestic sewage requirements of a floating C-store and boat septic pump-out facility.  Project is currently under construction and aligns with the schedule obligation of the team.

Project Manager:  Douglas Unger, P.E.

Post Falls Landing – Extension Boat Marina w/ Floating C-Store Platform, Spokane River, Post Falls, ID

Services involved design of extensive marina dock system on the Spokane River in an area of Post Falls which will morph into the new town center.  This project included the design of a floating C-store and boat fuel dispensing platform, large network of boat moorage slips, walkways, and access docks.  Structural design included steel pipe piles for marina anchoring.

Project Manager:  Douglas Unger, P.E.

More Projects

Blackwell Island Recreation Site, Spokane River

Harrison Public Boat Docks & Wave Attenuator, Lake Coeur d’Alene

2,000 LF pile supported aviation light walkway in Coos Bay, OR (for North Bend Airport) 

Glacier Nation Park Docks, Montana (dock facilities for Rising Sun Dock, Lake McDonald Lodge Dock, Two Medicine Lake Dock, and Many Glacier Hotel Dock for the National Park Service