Diablo Engineering Group

Transportation Infrastructure and Civil Engineering Practice

Website

About the firm

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.

Team
Micro
Firm type
Civil Engineering · Landscape Architecture · Owner's Engineer · Structural Engineering · Transportation Engineering

People

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

Capabilities

Civil Engineering Design

Service website

Provides public works and infrastructure engineering design services, preparing comprehensive plans, specifications, and cost estimates.

  • Streetscape, Roadway, Highway, and Interchange Design
  • Precise Grading and Improvement Plans Preparation
  • Design Topographic Survey
  • Right-of-Way Mapping
  • Geometric Analysis
  • C.3 Compliance
  • Utility Relocation and Coordination
  • Stage Construction and Detours
  • ADA Compliance
  • Complete Streets Solutions

Technical Project Management

Service website

Delivers comprehensive management services to support public works clients with planning, programming, consultant oversight, plan-checking, and construction-phase services.

  • Public Infrastructure Project Management
  • Local Agency Support Staff
  • Interagency and Caltrans Coordination
  • CEQA and NEPA Environmental Document Coordination
  • Complete Plans, Specifications, and Estimates (PS&E) Packages
  • Preliminary and Final Cost Estimates

Transportation Planning

Service website

Conceptualizes alternative design solutions to help clients, communities, and elected officials evaluate realistic, buildable options.

  • Pedestrian and Bicycle Facility Design
  • Traffic Signal Design
  • Street and Pedestrian Lighting and Photometric Analysis

Structural Engineering Design

Service website

Delivers engineering designs, calculations, and estimates for public infrastructure and private residential or commercial building projects.

  • Residential and Commercial Building Structural Design
  • Seismic Bracing and Anchorage Design

Other Project Services

Service website

Offers niche support for public works programs, including interagency agreements, fiscal administration, and real estate processes.

  • Eminent Domain Negotiations
  • Facilitation and Development of Multi-Agency Agreements
  • Grant Applications and Fiscal Management
  • Community Engagement and Outreach

Landscape Architecture

Service website

Designs green infrastructure, urban plazas, civic spaces, and stormwater-compliant landscaping.

  • Green Infrastructure, Urban Plazas, and Civic Space Design
  • C.3 Landscaping Design

Industries

Commercial · Residential · Government · Transit · Highways & Roads · Parks & Open Space · Transportation

Projects

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.

The Crossing at Montague MPA

Highways & Roads

Project details

Engineering services and infrastructure design for The Crossing at Montague project.

The Dunes at Monterey

Mixed-Use

Project details

Infrastructure engineering design support for The Dunes at Monterey development.

Bus Rapid Transit - AC Transit

San Francisco Bay Area · Transit · Client: AC Transit

Project details

Transportation design and coordination services supporting the Bus Rapid Transit system for AC Transit.