880 Safety 29th 23rd
Highways & Roads
Project details
Safety improvements and engineering design services associated with the Interstate 880 corridor at 29th and 23rd avenues.

Transportation Infrastructure and Civil Engineering Practice
Diablo Engineering Group provides civil engineering design, transportation planning, structural engineering, and technical project management services to clients throughout the San Francisco Bay Area. Highly skilled professional engineers directly serve local cities, counties, and transportation or transit agencies. The practice has earned a reputation for leading multidiscipline engineering teams to plan, design, and oversee the construction of major transportation infrastructure improvements. Diablo Engineering Group also provides valuable civil engineering support services to large engineering firms. Its high-quality technical engineering skills are paired with effective communications with clients, teaming partners, community members, elected officials, and partner agencies, providing the necessary foundation to deliver complex public infrastructure projects.
Jennifer HarmonPresident, Principal and Project Manager
Garrett GritzPrincipal and Project Manager
Justin BrueProject Engineer / Structural Engineering Manager
Cameron LaneProject Engineer
Aleksandra TorbicaSenior Designer
Miguel VazquezDesign Engineer
Jose RodriquezDesign Engineer
Matthew CandlerDesign Engineer
Chris GjerdeProject Engineer & IT Manager
Provides public works and infrastructure engineering design services, preparing comprehensive plans, specifications, and cost estimates.
Delivers comprehensive management services to support public works clients with planning, programming, consultant oversight, plan-checking, and construction-phase services.
Conceptualizes alternative design solutions to help clients, communities, and elected officials evaluate realistic, buildable options.
Delivers engineering designs, calculations, and estimates for public infrastructure and private residential or commercial building projects.
Offers niche support for public works programs, including interagency agreements, fiscal administration, and real estate processes.
Designs green infrastructure, urban plazas, civic spaces, and stormwater-compliant landscaping.
Commercial · Residential · Government · Transit · Highways & Roads · Parks & Open Space · Transportation
Highways & Roads
Safety improvements and engineering design services associated with the Interstate 880 corridor at 29th and 23rd avenues.
Highways & Roads
Engineering services and infrastructure design for The Crossing at Montague project.
Mixed-Use
Infrastructure engineering design support for The Dunes at Monterey development.
San Francisco Bay Area · Transit · Client: AC Transit
Transportation design and coordination services supporting the Bus Rapid Transit system for AC Transit.