OUR PORTFOLIO
Civil Engineering Portfolio | CSI Project Experience
Since 1989, CSI has delivered successful civil engineering projects across Florida and Georgia. Our portfolio reflects a consistent record of quality, precision, and client partnership — spanning roadway, bridge, structural, and site development work for public and private sector clients.
From complex bridge design and rehabilitation to large-scale transportation infrastructure and civil site development, CSI's project experience speaks for itself.
Our Civil Engineering Capabilities at Work
CSI's portfolio spans the full range of our multidisciplinary services:
Roadway Design — reconstruction, widening, safety, and RRR projects
Bridge Design — major and minor bridges, rehabilitation, and replacement
Structural Engineering — bridges, buildings, foundations, dams, and drainage structures
Value Engineering — cost optimization across project types
Civil Site Design — site development, stormwater, ADA upgrades
CEI
Our clients include the Florida Department of Transportation (FDOT), Georgia Department of Transportation (GDOT), Jacksonville Transportation Authority (JTA), City of Jacksonville, City of Augusta, Jacksonville Port Authority, and a wide range of county and municipal agencies.
Trusted by Public Agencies Across the Southeast
CSI's civil engineering consulting team has built lasting relationships with federal, state, county, and city agencies throughout Florida and Georgia. Our professionals bring pre-qualified credentials, proven processes, and the latest technologies to every project — delivering results that hold up over time.
Holloway Road
Holloway Road – Putnum County, FL
Putnam County Public Works / FDOT District 2 (SCOP funded)
The purpose of this project was new construction of Holloway Road from dirt road to asphalt pavement from SR 100 to Tinsley Road for 3.568 miles in Putnam County. CSI prepared the design plans from SR 100 to Tinsley Road.
Alta Drive / Yellow Bluff Road Bridge
Alta Drive / Yellow Bluff Road Bridge – Jacksonville, FL
450' Bridge Connection with Roadway & Drainage Improvements | City of Jacksonville
This project delivered the design of a 450-foot bridge connecting Alta Drive and Yellow Bluff Road in the City of Jacksonville, Florida — a key infrastructure link supported by comprehensive roadway and drainage improvements, along with extensive environmental permitting coordination.
CR 309D Bridge
CR 309D Bridge Replacement Over Etonia Creek – Putnam County, FL
Decorative Brick-Paved Bridge with Timber Railing | FDOT/AASHTO Compliant Design
This single-span bridge project combines structural performance with aesthetic detail, featuring a brick paver wearing surface and timber railing designed to meet modern safety standards while preserving a classic, traditional look.
Princess Island House Bridge
Princess Island House Bridge – Single-Span Bridge Replacement | Flagler County, FL
Decorative Brick-Paved Bridge with Timber Railing | FDOT/AASHTO Compliant Design
This single-span bridge project combines structural performance with aesthetic detail, featuring a brick paver wearing surface and timber railing designed to meet modern safety standards while preserving a classic, traditional look.
County Road 200A
Bridge No. 740069 Replacement — County Road 200A over Lofton Creek Yulee, Nassau County, Florida
CSI was selected to provide Project Development & Engineering (PD&E) and design services for the replacement of the structurally deficient Bridge No. 740069 on County Road 200A (Paige Dairy Road) over Lofton Creek in Yulee, Nassau County, Florida.
SR 13/San Jose Blvd
SR13/San Jose Blvd Project | Jacksonville, FL | FDOT District 2
This project involved 2.29 miles of milling and resurfacing along State Road 13 (San Jose Boulevard) in Duval County, Florida, extending from south of Interstate 295 to north of Sunbeam Road. SR 13 is a critical arterial connecting suburban communities to downtown Jacksonville, carrying in excess of 66,000 vehicles per day.
Award Winning SR 228 Alt (Emerson Street Expressway) & SR 126
SR 228 Alt (Emerson Street Expressway) & SR 126 Extension Concrete Rehabilitation | Jacksonville, Florida
This project was honored with Florida's Best in Construction — Community Awareness Award (2025) by the Florida Transportation Builders' Association (FTBA) — a statewide recognition awarded to projects demonstrating exceptional construction quality, public communication, and community impact during transportation infrastructure delivery.
SR 212 / St. Johns Avenue Roundabout Design
SR 212 / St. Johns Avenue Roundabout Design Project | Jacksonville, FL | FDOT District 2
This project delivered complete pavement rehabilitation and intersection modernization along St. Johns Avenue from Canterbury Street to Herschel Street in Jacksonville, Florida, including the conversion of two signalized intersections into modern roundabouts.
I-295 at SR 228/Normandy Blvd Interchange
SR 228 & I-295 Interchange Improvement Project | Roadway Widening & Traffic Operations
This project delivered comprehensive operational and infrastructure improvements along State Road (SR) 228 at the I-295 Northbound and Southbound interchange, including I-295 NB off-ramp widening to enhance traffic flow, safety, and freight mobility.
Argyle Forest Blvd Widening
Argyle Forest Boulevard Widening — Phase I & Phase II | Jacksonville Transportation Authority (JTA) | Jacksonville, Florida
CSI delivered full conceptual-to-final design services for the Argyle Forest Boulevard Widening Project, a two-phase road expansion initiative on behalf of the Jacksonville Transportation Authority (JTA) in Jacksonville, Florida.
FEATURED CASE STUDY
Duval County Courthouse
Civil & Roadway Design | Jacksonville, FL
CSI served as a key design-build team member for the 800,000 SF Duval County Courthouse in downtown Jacksonville, Florida — one of the most complex civic infrastructure projects in the region.
CSI's scope included civil site design, roadway design, and stormwater drainage, highlighted by the full realignment of Monroe Street to accommodate the courthouse entrance. Utility design encompassed potable water distribution and sanitary sewer collection systems, with permitting coordinated across multiple agencies including the City of Jacksonville, Jacksonville Electric Authority (JEA), and the Environmental Protection Agency (EPA).
A core engineering challenge was maximizing the use of existing in-place structures to minimize costs — requiring extensive coordination across all design disciplines throughout the project lifecycle.
