Select Bridges Projects
- I-74 Mississippi River Crossing Between Moline, IL and Bettendorf, IA, IowaDOT District 6
- US 52 Savanna/Sabula Tied Arch bridge, IDOT District 2
- I-294 (Tri-State Tollway) Mile Long Bridge Reconstruction, Cook County, IL, Illinois Tollway
- Tied-Arch Illinois River Bridge, Meredosia, Illinois, IDOT District 6
- Cedar Street Bridge over Illinois River, Peoria, IL, IDOT District 4

Bridges
Quigg Engineering has significant experience in bridge projects including field evaluation of existing structures, development of bridge condition reports,the preparation of plans for bridge widening and rehabilitation, and new bridge design. We have the staff and resources necessary to complete significant sized bridge projects and have experience in expediting projects. Our structural staff is also experienced with MicroStation, Geopak, STAAD, MDX, MathCad, D-Calc, and HEC-RAS software.