Structural Engineering

Committed to Connecting Infrastructure to Community

The Statue of Liberty, Eiffel Tower, and Gateway Arch are only a few of the many historical and wondrous works of art that have one thing in common – they were all carefully and thoroughly designed by a skilled team of structural engineers. Formulating the different pieces of a complex puzzle and having them intricately placed are all part of a well-built structure. Dibble’s structures practice supports a wide range of markets and project needs for public and private clients throughout the U.S. Our structural engineering services, along with our infrastructure rehabilitation capabilities, create custom structural strengthen solutions for industrial and civil applications.

Interested in joining our Team? Visit our Careers page.


  • Analysis
  • Assessment
  • Building Rehabilitation
  • Certification
  • Design
  • Expert Witness Testimony
  • Feasibility Studies
  • Forensic Investigations and Studies
  • Materials Testing
  • Manufactured Home Foundation Certifications
  • Peer Reviews
  • Quality Control and Assurance
  • Retaining Wall Design
  • Seismic Design and Analysis
  • Special Inspections
  • Strengthening and Repair of Existing Structures
  • Structural Investigations and Assessments
  • Turnkey Solutions

Additional Projects

Sedona Airport Runway Surface Area Planning Study

Sedona, AZ
Owner: Yavapai County

Dibble is providing structural assessment and concept design services for needed structural improvements at Sedona Airport, including retaining walls at both ends of the runway.

Cedar Street Sewer Repair

Tempe, AZ
Owner: City of Tempe

Dibble designed the expedited fiber reinforced polymer (FRP) repair of an exposed vitrified clay pipe (VCP) sewer line spanning a storm drain junction box.

13th Street Sewer Crossing Repair

Tempe, AZ
Owner: City of Tempe

Dibble designed the expedited FRP repair of a leaking 16-inch ductile iron pipe (DIP) sewer running through a 72-inch storm drain.

AWT-MF to RO 36-Inch Pipe Repair

Scottsdale, AZ
Owner: City of Scottsdale

Dibble provided structural engineering for the FRP rehabilitation of a deteriorated 300-foot-long, 36-inch DIP at the Scottsdale Water Campus.

Western Canal Interceptor Junction Structure Rehabilitation

Tempe, AZ
Owner: City of Tempe

Dibble provided services for the FRP rehabilitation of a 60-inch-diameter PVC T-lock lined junction structure near the City of Tempe’s Western Canal.

SRPMIC Sewer Rehabilitation

Scottsdale, AZ
Owner: City of Scottsdale

Dibble is providing engineering, construction administration, and inspection services to rehabilitate approximately 5,279 linear feet of VCP and DIP sanitary sewer near the SRPMIC border. Strategies include FRP rehabilitation to mitigate corrosion and reinforce the pipe strength.

PVC-Lined Sewer Rehabilitation

Phoenix, AZ
Owner: City of Phoenix

Since 2008, Dibble has provided services to rehabilitate sanitary sewer pipelines and repair manhole/junction structures for the City of Phoenix. We are currently designing the rehabilitation of approximately 41,000 linear feet of sanitary sewer pipe (69 segments) and 188 manholes. FRP repair is being used in segments where the cured-in-place pipe (CIPP) liner had detached from the host PVC pipe.