Atlas Electric


This new construction consists of an insulated concrete tilt-up building with a separated warehouse and office area. In order to provide the client with a quick and efficient design process, the project was a design/build delivery working closely with the tilt-up contractor. The lateral system consists of metal roof deck diaphragm, transferring loads to the perimeter concrete walls. Conventional spread footings were used for the foundation design.

Everlogs Concrete Logs


EverLog™ Systems ( is a revolutionary company that uses concrete instead of wood to build log homes.  Designed to solve the challenges commonly associated with wood log construction, concrete logs are changing the way people design, build and live in a log home.  Eclipse Engineering has provided comprehensive engineering and consulting services on a variety of EverLog™ products across the country.  From engineering complex timber structures and wall systems to product analysis and validation, Eclipse Engineering has been a partner in delivering a worry free solution to EverLog’s commercial and residential clients.

Missoula Federal Credit Union – Corporate Headquarters


Construction on the MFCU corporate facility started in the spring of 2009. Light gauge steel studs support the perimeter bearing walls and steel bar joists support a concrete floor system. A tremendous amount of natural light enters the building through the clerestory structure which is supported by exposed structural steel braces. The owner, contractor, and the entire design team (CTA Architects Engineers) worked closely during the design phase to assure the best possible product.

Discovery Park Lodge


Discovery Park Lodge, designed by GGL Architecture, consists of a 3-story wood framed apartment complex over a full basement parking garage.The main floor is “framed” with a post-tensioned concrete slab to allow for the parking garage below.The wood-framed structure above consisted of bearing walls, a wood-sheathed lateral system, an I-joist floor system and a combination of stick frame and pre-engineered wood trusses.The building will be used for low income elderly housing with options to buy or lease each unit.The building has kitchen facilities and is fully equipped for elderly services.

South Gate Mall Offices


This building is new construction of a five-story office building with a foundation footprint of 80 feet x 130 feet. It provides over 62,000 square feet of office space (including the basement). The main level is 15 feet tall and the remaining floors are 13.5 feet tall each. The floor framing is steel and concrete composite beams and girders. The roof framing is steel joists with a steel roof deck. The lateral load resisting system is concrete shear walls. The exterior walls are light gage steel stud framing. Brick veneer clads the main level, dryvit is used on the next three floors, and curtain walls are used on the fifth floor. The main level is a commercial bank, so assembly load is used in design.

Whitefish Central School


The new space includes a library, a vo-tech lab, a band room, a choir room and of course classrooms and administrative offices. The library is a one-story section, and the classroom wings are two stories. The floors are framed of steel beams that are designed as composite members working with the concrete topping slab. The roof is framed with steel joist girders, steel beams and steel bar joists. The walls are mostly light gauge metal studs that in-fill the steel frame, although the band and choir rooms have concrete masonry elements to reduce sound attenuation. The lateral force resisting system is mostly concentrically-braced frames and concrete masonry shear walls. The foundation is conventional concrete walls and footings with some concrete grade beams to resist overturning forces. The remodeled space will modernize the historic auditorium wing, which currently holds classrooms and office space as well as the auditorium and 52-foot Fly Loft. The structural elements of the historic wing include concrete foundation walls, unreinforced brick-bearing walls, wood-framed floors and roofs with steel beams and columns. The structural upgrades include steel portal frames to support new openings in the existing concrete and brick walls, new wood floor framing elements, concrete masonry vaults, and in-fill framing of existing floor and wall openings.

The Bungalow Company


Our partnership with The Bungalow Company has lead to hundreds of successful projects throughout the United States. The Bungalow is more about philosophy than a particular single style. Bungalows are cozy, attractive, functional buildings — free of wasted space. Bungalow living is about a simpler pursuit of life (and less house cleaning). As structural engineers, our role is to provide functional structural designs for all regions that stay out of the way of the classic bungalow style.

Glacier Bank


The Glacier Bank headquarters, in Kalispell, expanded by purchasing the building across the street. Both two-story buildings were first remodeled and then connected by a 66-foot precast concrete skybridge. Both the north building and the south building remodels included in-fill floor areas on the second floor. Both buildings include new pop-up areas on the roof to provide space for elevators and stairs leading to the skybridge. During construction, a massive fire burned much of the roof framing on the north building. An assessment of the damage was made by Eclipse as well as direction given as to which structural elements were salvageable and which were damaged beyond repair.

Interdisciplinary Science Building – University of Montana


The ISB is a laboratory building used by various scientists and researchers. The floors are steel and concrete composite framing, the roof is heavy steel, the entry canopies are glue-laminated timber, and the foundation is 12-inch thick conventional cast-in-place concrete on spread/strip footings. Allowable soil bearing pressure is 8,000 psf.

Bozeman Food Coop


A 10,000 square foot addition to an existing warehouse building, The Community Food Co-Op in Bozeman, Montana combines numerous steel and wood features with existing masonry. Due to the openness of the building, the lateral force resisting system consists of a series of large steel moment frames with wood shearwalls. The roof system is a combination of timberframe wood trusses and sandwich panels. The upper floor is concrete on steel bar joists supported with open span steel beams. The exterior porch roof and floor are supported with thirty foot tall steel “mast” columns and steel rods forming a unique support system.