JFSA has been committed to supplying the highest quality product on time and budget for over 30 years. We have designed projects from complicated multi-million dollar interchanges and roundabouts to less complicated road and street widening. We can provide services for every facet of a project from planning, conceptual design, to final design, cost estimates and construction management. Our innovative designs have saved our clients time and money as well as helped them plan for the future.




Colorado Department of Transportation

Civil Engineering

City of Thornton

Structural Engineering

National Park Service

Water Resources Planning and Design

City of Westminster

Transportation Planning and Design

City and County of Denver

US Forest Service

Representative Projects:

I-70 I-70 Mountain Corridor - Programmatic Environmental Impact Statement
Berthoud Pass Berthoud Pass Mountain Access Project
Harmony Road Harmony Road Interchange
Powers Corridor Powers Corridor Mode Feasibility Assessment
144th Avenue 144th Avenue Widening and Bridge Construction
Mexican Canyon Mexican Canyon Trestle Overlook
J.F. Sato & Associates • 5878 South Rapp Street • Littleton, CO 80120 • 303.797.1200 • F: 303.797.1187