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 drawing review and preparation of project cost estimates and specifications ... view full bio

Andrew Haines is the Design Manager of the Phoenix office. Since 1991, Andrew has served as project manager on many complex jobs including mass transit facilities, bridges, tunnels, parking structures, laboratory and power generating facilities. He also has extensive experience in the restoration of old and historic structures. Andrew’s responsibilities include design, project management and construction engineering for new structures and the rehabilitation of existing structures ... view full bio

Jorge Montoya has been working in civil and structural engineering since 1987. He has been responsible for the design and preparation of contract plans for highway bridges, earth retaining structures, roads, and highways. He is experienced in the design of new transportation-related structures as well as the rehabilitation of and modifications to existing structures ... view full bio

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 involved in LRFD design projects since 2002 ... view full bio

Since 1992, Ehsan Abdullah, PE, has provided design, inspection and rehabilitation services for bridges, highway structures, and light rail/rapid transit prestressed concrete guideway structures. Mr. Abdullah’s experience ranges from the design of reinforced concrete, prestressed, post tensioned and steel plate and box girders to structural analysis and load rating of existing concrete, steel, timber, and truss bridges. His roadway experience includes detailed geometric design, modern roundabouts, drainage storm systems, intersections, and culvert design ... view full bio

Since 1985, Dave Dobler has been involved in the design and planning of large, complicated projects, in coordinating efficient design delivery processes with diverse clientele, user groups, with principal oversight entities and with the public for environmentally and context sensitive projects. He is experienced in collaborating with multiple users and identifying key criteria for large infrastructure projects and in the implementation of economical designs that respond to and preserve their unique environments and serve their user groups. Dave has a demonstrated ability to develop unique, context appropriate and cost-effective bridge design solutions that are safe, accessible and meet the project’s functional requirements ... view full bio

Doaa Aboul-Hosn has been involved in construction administration and management of large public works projects including roadways, bridges, reinforced concrete structures, large earthwork projects, tunnels, shafts and pipelines since 1990. Doaa is a certified bridge inspector and open/underwater inspector ... view full bio

Since 1984, Joel Mona has been involved in the construction and construction management of complex public works projects including water treatment facilities, dams, tunnels and shafts, large hydraulic structures, roads and bridges. Joel’s principal responsibilities as a Resident Engineer include the overall execution and administration of projects, management of on-site engineering and inspection staff and direct accountability for quality, schedule, project cost and safety performance ... view full bio

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 ... view full bio

Dave Davidson has been involved in construction and construction inspection for complex public works and private projects including roads and bridges, industrial parks, water treatment facilities, power plants, dams, tunnels and shafts, large hydraulic structures, missile sites, hospitals and schools since 1972. Dave is proficient at performing various types of inspections, including signals and lighting and landscaping and irrigations ... view full bio

Matt Mitchell Since 1997, Matt Mitchell has 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 items. He is also proficient at using web-based construction management systems ... view full bio

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 since 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 structures throughout Arizona including the Terminal Four Bridges for the Sky Harbor Airport, I-17/Loop 101 Interchange, I-10/US 60 Interchange, and I-10 and I-17 Stack Interchange. Jim’s responsibilities include surveying operations for the layout of transportation structures, roadways, piping, retaining walls, utilities, preliminary calculations, scheduling, project management and coordination with contractor and sub-contractors. Jim is proficient in the use of both Trimble Robotics and NavCom GPS Systems ... view full bio

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 worked for ADOT for 29 years and served as the ADOT Chief Surveyor and Manager of the Phoenix Construction District Survey Office. Paul provided survey support to Field Offices constructing multiple transportation projects in the Phoenix metropolitan area. ... view full bio