Our Team

Dustin Bonar

Resident / Field Engineer Since 2011, Dustin has amassed years of well-rounded experience in both the design and construction of transportation and utility projects – including Arizona’s only P3 project, large design-build and CMAR, local government, and municipal projects. He is experienced in the construction QA role from both the public and private sides which…

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Claudia Perchinelli, PE, SE

Project Principal Claudia Perchinelli is the President/CEO of Structural Grace, Inc. Since 1985, Claudia has been involved in bridge design and structural engineering. Claudia’s engineering responsibilities include design, project management and construction engineering of transportation related structures including long-and short-span bridges, pedestrian bridges, and temporary works as well as bridge construction services, including inspections, shop…

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Jim Glock, PE

Tucson Engineering Manager Jim Glock, PE, serves as the Bridge Design Manager for the Tucson Office. Jim started his career in 1982 at the City of Tucson, where he spent over nine years as the Transportation Director, retiring in December 2011. During his career with the City of Tucson, he was involved in the planning,…

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Nathan J. Palmer, PE, CBI

Phoenix Engineering Manager Nathan Palmer, PE, currently serves as the Engineering Manager for the Phoenix Office. Nathan has been working in the engineering industry since 1998 and has been designing bridges since 2005. Prior designing bridges he acquired valuable experience in surveying, construction, full-scale testing, fabrication and structural plan review. His recent experience includes the…

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Arild Orsleie, PE, SE

SENIOR PROJECT ENGINEER Arild Orsleie, Senior Project Engineer, has been a structural engineer since 1975, including extensive experience in the design of prestressed I-girders, CIP post-tensioned box girders, voided slab bridges, segmentally-erected prestressed concrete bridges, seismic retrofit of prestressed concrete bridges and the design of light rail/rapid transit prestressed concrete guideway structures. He has been…

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Robert Ramsdell, PE

Construction Engineer/Manager Bob Ramsdell has been in the engineering and construction industry since 1968. He has broad-based experience in the administration and management of major construction projects. His expertise includes contract administration, quality assurance/field engineering, claims evaluation/analysis, preparation of pre-award construction contract documents, processing contract change orders and administration of construction schedules.

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Matt Mitchell

CONSTRUCTION INSPECTOR Since 1997, Matt Mitchell has been involved in the inspection of public works projects including light rail facilities, roads, bridges, and pipelines, and in performing Quality Control services for a large construction company. His responsibilities include civil and structural inspections-including roads, bridges, retaining walls and traffic signals, material testing,and quantity documentation for pay…

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James Wahlund

CONSTRUCTION SURVEY CONSULTANT Jim Wahlund serves as the Construction Surveying Manager and consistently provides quality construction surveying services for complex transportation projects. Jim has worked in the construction surveying industry in 1985. Since joining Structural Grace in 2001,Jim has served as the Chief Construction Surveyor responsible for vertical and horizontal control of urban and rural…

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Paul Jokilehto, RLS

Land Surveyor Paul Jokilehto began his career in the surveying profession in 1979, primarily in urban and rural transportation system construction projects. Paul’s principal responsibilities as a Land Surveyor include conferring with design staff, construction personnel, reviewing project plans, performing calculations and on-site fieldwork as dictated by project needs. Prior to joining Structural Grace, Paul…

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Curtis Oxford, RLS

SURVEY MANAGER Curtis Oxford, RLS, has worked in the surveying industry since 1982, specializing in construction surveying and field computations for large, complex transportation projects. Curtis is currently serving as the Crew Chief on the I–10/303 Traffic Interchange for ADOT, a five level TI connecting I-10 to the new SR303L. Curtis’ expertise includes layout and…

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