Structural Engineering
The IEI Structural Team provides engineering services for highway/roadway and mass transit/railway bridges, sign structures, culverts and underground drainage structures, viaducts, and retaining walls. Services include preparing structural designs, specifications and cost estimates, field inspections, and structural condition reports.
IEI has delivered complex structural solutions for major transportation agencies, including:
Port Authority of New York and New Jersey
New York City Department of Transportation
New York State Department of Transportation
Illinois State Tollway Highway Authority
Illinois Department of Transportation
Chicago Department of Transportation
Cook County Department of Transportation
City of Peoria
Indiana Department of Transportation
Indianapolis Department of Public Works
Hamilton County Highway Department
Structural Engineering Services
- Highway Bridge Rehabilitation Structure Inspection, Condition Reports, Preliminary Engineering, & Load Rating
- Railroad Bridge Design and Rehabilitation
- Bridge Design
- Retaining Walls, Preliminary & Final Design
- Sign Structures
- Resilience & Life Cycle Engineering
- Culverts and Underground Drainage Structures
