Structure Inspections & Bridge Hydraulics
GDOT Bridge Inspections Program | Bridge Inspection Services | Statewide, GA
CSI holds two concurrent bridge inspection contracts with the Georgia Department of Transportation (GDOT), encompassing the inspection of over 50 bridges located across the state — including both off-system and on-system structures.
Inspected structures range in complexity from simple spans to multi-span bridges, concrete to steel construction, roadway crossings to waterway crossings, and require the use of snooper and bucket trucks for access. For each structure, CSI produces a comprehensive Bridge Inspection Report per GDOT and National Bridge Inspection Standards (NBIS) requirements, with all findings entered into the GDOT Bridge Information Management System (BIMS) database.
Key Engineering Work:
Inspection of 50+ bridges statewide (on-system and off-system)
Detailed condition assessment and deficiency identification
Bridge Inspection Reports per GDOT and NBIS standards
Data entry and management in GDOT BIMS database
Snooper and bucket truck inspection operations
Project Details
Client: Georgia Department of Transportation (GDOT)
Location: Various Counties, GA
Services: Bridge Inspection | NBIS Compliance | BIMS Data Management
Project Engineers: Christopher Morse, PE | Ramesh Kalvakaalva, PE | Fares Tannous, PhD, PE | Greg Hanchar, PE
South Florida Water Management District Bridge Service Program | Bridge Inspection, Repair & Replacement | Statewide, FL
CSI manages the comprehensive Bridge Service Program for the South Florida Water Management District (SFWMD), which owns approximately 66 stand-alone bridges across Florida. The program covers the full lifecycle of bridge asset management — from routine inspection through load rating, repair design, and full bridge replacement.
CSI's responsibilities span detailed bridge condition inspections, load rating calculations, planning and conceptual design for replacement candidates, maintenance construction design packages for minor repair structures, and detailed bridge design packages for structures with significant structural deterioration posing active safety risks.
Key Engineering Work:
Detailed bridge inspections and condition assessments (66 bridges)
Bridge Inspection Reports with load ratings for all structures
Planning and conceptual design for bridge replacement alternatives
Maintenance construction design packages (minor repairs)
Detailed bridge repair and replacement design packages
Load rating calculations for water control structure service bridges
Project Details
Client: South Florida Water Management District (SFWMD)
Location: Various Counties, FL
Services: Bridge Inspection | Bridge Load Rating | Bridge Repair Design | Bridge Replacement Design
Project Engineers: Christopher Morse, PE | Fares Tannous, PhD, PE | Scott Grimes, CBI
South Florida Water Management District Tower Inspection Surveys | Structural Inspection | South & Central Florida
CSI has provided microwave tower inspection and structural evaluation services for the South Florida Water Management District (SFWMD) across 56 towers spanning 16 Florida counties — from Osceola to Monroe — over three consecutive contract years, with 35 towers inspected to date.
The SFWMD's tower network is critical infrastructure supporting the district's supervisory control and data acquisition (SCADA) systems for remote operation of water control structures. Inspections were performed in compliance with federal and industry structural and communications standards, including TIA/EIA-222-G, TIA/EIA-252, FAA regulations, FCC rules, and applicable local codes. Field challenges included remote sites in federally protected swampland amid active wildlife.
For each tower, CSI systematically assessed structural condition, rated the severity of identified deficiencies, prioritized required repairs, and developed detailed cost estimates to support the district's maintenance budget planning.
Tower Types Inspected: Guyed towers | Self-supported towers
Governing Standards:
TIA/EIA-222-G: Structural Standards for Steel Antenna Towers and Antenna Supporting Structures
TIA/EIA-252: Standard Microwave Transmission Systems
Federal Aviation Administration (FAA) Rules and Regulations
Federal Communications Commission (FCC) Rules and Regulations
Local electrical, building, and fire codes
Key Engineering Work:
Structural inspection and condition assessment of 35+ microwave towers
Deficiency identification, severity rating, and repair prioritization
Repair recommendation reports
Construction cost estimates for repair implementation
Remote site field inspections in protected federal swamplands
Project Details
Client: South Florida Water Management District (SFWMD)
Location: Various Locations, South and Central Florida
Services: Tower Inspection & Structural Evaluation | Inspection Reports | Repair Prioritization | Cost Estimating
Project Engineers: Ramesh Kalvakaalva, PE | David Anderson, PMP | Christopher Morse, PE
Pine Avenue Pedestrian Bridges | Bridge Hydraulics & Scour Analysis | Fleming Island, Clay County, FL
CSI provided bridge hydraulics, scour analysis, and drainage design services for the full redesign of nine structurally deficient pedestrian bridges on Fleming Island in Clay County, Florida — FDOT District 2 — including eight bridges along Pine Avenue and one on Bald Eagle Road.
CSI led all roadway, structural, drainage design, and plan production efforts in-house, coordinating with subconsultants for survey, geotechnical, and wetlands delineation services. Drainage design included full basin delineation, hydrologic analysis, bridge hydraulic modeling, and scour analysis, with all hydraulic calculations performed using the USACE HEC-RAS computer program.
LiDAR elevation data and GIS software were used to supplement field survey data for basin delineation, hydrologic property calculations, and hydraulic model development. The drainage scope also included ditch redesign and lining, along with analysis and stabilization of areas experiencing excessive erosion.
Key Engineering Work:
Hydraulic analysis and bridge hydraulics modeling (HEC-RAS)
Scour analysis and calculations for 9 bridge replacements
Basin delineation and hydrologic analyses (LiDAR + GIS)
Roadway and bridge deck drainage design
Ditch redesign, lining, and erosion stabilization
Bridge Hydraulics Report (BHR) preparation
Stormwater permitting
Roadway and structural design (in-house)
Project Details
Client: Florida Department of Transportation (FDOT), District 2
Location: Fleming Island, Clay County, FL
Services: Bridge Hydraulics | Scour Analysis | Basin Hydrology | Roadway Drainage | Stormwater Permitting
Project Engineer: Eric Falkenberry, PE, CFM — Senior Drainage Engineer
Pineville Road Bridge over Brushy Creek | Bridge Hydraulics & Scour Analysis | Escambia County, FL
CSI provided bridge hydraulics and scour analysis services for the replacement of the structurally deficient Pineville Road Bridge over Brushy Creek (Bridge No. 484007) in Escambia County, Florida — FDOT District 3. The existing 60.6-ft, four-span timber bridge, constructed in 1967, was slated for full replacement.
The upstream watershed — extending north into Alabama — was determined to span 48,889 acres (76.39 square miles), requiring the application of 2011 USGS Regression Equations for Region 1 (Florida Panhandle) to calculate peak runoff values. Bridge hydraulic and scour calculations were performed using the USACE HEC-RAS program. Due to the broad floodplain, a combined approach using LiDAR elevation data, site survey, and the Watershed Modeling System (WMS) was employed to develop accurate stream cross-sections and hydraulic model geometry.
Key Engineering Work:
Bridge hydraulics analysis of multiple replacement alternatives
Scour analysis and calculations (HEC-RAS)
Watershed delineation (48,889-acre cross-state watershed)
Peak runoff calculations (2011 USGS Region 1 Regression Equations)
LiDAR data processing and HEC-RAS model development (WMS)
Bridge deck and roadway drainage conveyance design
Stormwater permitting
Project Details
Client: Florida Department of Transportation (FDOT), District 3
Location: Escambia County, FL
Services: Bridge Hydraulics | Scour Analysis | Watershed Hydrology | Roadway & Bridge Deck Drainage | Stormwater Permitting
Project Engineer: Eric Falkenberry, PE, CFM — Senior Drainage Engineer
