Holladay Engineering Company

Galloway Canal Bridge Replacement Washington County The Galloway Canal Bridge Replacement project consisted of a complete rebuild of an old bridge, originally built in 1955. The bridge is located in rural Washington County, east of the City of Weiser on Weiser River Road, Idaho. This bridge provides a critical crossing of Galloway Canal via Weiser River Road, which serves a large number of travelers in rural Washington County. The next closest crossing is over 30 miles away. The project consisted of a complete reconstruction of the bridge, which included 55' to 68' steel girders. The substructure consisted of reinforced concrete abutments, wing walls, and spread footings for each abutment at a different skew angle. The bridge was widened from 24' to 30' to accommodate two lanes of traffic. Holladay Engineering provided preliminary design, final design, and construction oversight, which was open to traffic in February 2006 with approaches and intersections completed by July 2006.

Holy Rosary Medical Center, Parking Garage Structural Inspection, Ontario, Oregon. This project required a visual inspection of the structural elements of the parking structure. We provided a written report of the recommendations to curb any deterioration of the structural element, which included revised maintenance procedures to prevent any further deterioration and/or structural concerns.

Lynn Josephson Produce Company Inc., Building Collapse / Structural Inspection, Payette, Idaho. This project involved inspection of two structures that had sustained structural damage due to a heavy snow load. We provided a written report which recommended demolition of both structures.

State of Idaho, Annual Inspection of Bridges, Adams County Idaho This project involves an annual visual inspection of all bridge elements noting deficiencies and progression of the deterioration of different elements of each bridge (structures include wood, steel, and concrete elements). We make recommendations to the local agency of work that should be performed on bridge elements. Individual elements are rated in accordance with federal criteria. Pictured is a deficient wood stringer on a pony truss bridge over the Wild Horse River in western Adams County.

Len's Drug Store Roof Structural Integrity Assessment Project, John Day, Oregon This project involved inspection of the roof structure of a commercial building. Several of the building's roof bowstring trusses had been compromised by overloading the beams with storage supplies; resulting in cracking of the roof's truss. Each individual truss member was structurally analyzed to verify its structural integrity. Holladay Engineering worked with an architect to repair the truss and to support the design load. The top photo shows the compromised element. The bottom photo shows the repaired element.

Elgin School District, Mayfield Elementary School Auditorium Structural Assessment of Integrity Project, Elgin, Oregon This project consisted of visually inspecting a failed bowstring truss over the Mayfield Elementary School auditorium. Inspection included the roof joists, the block pilasters, and the x-bracing between the existing trusses. Holladay Engineering prepared a report that detailed our findings and included recommendations to repair the compromised truss. Pictured is a photo of the broken diagonal member.

State of Idaho, Annual Inspection of Bridges, Gem County Idaho This project involves annual visual inspections of all bridge elements, noting deficiencies and progression of the deterioration of various elements of each bridge (including wood, steel, or concrete elements). We make recommendations to the local jurisdiction of work that should be performed on each bridge. Individual elements are rated in accordance with federal criteria. Pictured is a wood girder bridge with additional steel girders that replaced the rotted wood girders. The bridge is located at Squaw Creek in the northern portion of Gem County.

Farmers Grain & Seed Structural Assessment of Integrity Project, Nyssa, Oregon. This project included inspection of an existing building with failure of glu-lam arches. Horizontal ties were broken as a result of wall loads induced by stored grain. Holladay Engineering recommended repairs to the structure which combined a new concrete retaining wall with the structurally sound portions of the existing arches. Top photo shows an external view of the structure, middle photo shows the broken arch along the south wall, and the bottom photo shows the broken foundation wall.