The document presents the aesthetic design concepts for various elements of the I-74 bridge project between Illinois and Iowa. It includes designs for basket handle arches, lighting of arches and piers, viaduct piers, pedestrian railings and lighting, overlook areas, retaining walls, bridge colors and finishes, barriers, abutments, roadway lighting, identity elements, water features, and a let down structure. The designs are at a preliminary stage and may be refined as the project continues development.

1. I-74 Final Design - Aesthetics
August 28, 2013

2. Table of Contents
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Basket Handle Arches
Arch Span Lighting
River Crossing Bridge Piers
River Crossing Bridge Pier Lighting
Viaduct Piers
Pedestrian Railings
Pedestrian Trail Lighting
Pedestrian Overlook
MSE Walls
Colors and Finishes
Bridge Barriers
Bridge Abutment Maskwalls
Roadway Lighting
Identity Elements
Water Features
Let Down Structure
Pages 3-5
Pages 6-8
Pages 9
Pages 10-11
Pages 12-13
Pages 14-18
Pages 19
Pages 20-23
Pages 24-25
Pages 26
Pages 27
Pages 28-29
Pages 30-31
Pages 32-40
Pages 41-43
Pages 44-4
The slides shown in this presentation represent the aesthetic design concepts at this point of plan development.
The final look of these features may change slightly as development continues.
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3. Basket Handle Arches – View from Road
3

4. Basket Handle Arches – View from Road
Uplighting of Cables (Night View)
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5. Basket Handle Arches – View from River
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6. Arch Span Lighting – Uplighting of Cables (Night View)
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7. Arch Span Lighting – Colored Uplighting of Cables
(Night View)
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8. Arch Span Lighting – Programmable Colored
Uplighting of Cables (Night View)
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9. River Crossing Bridge Piers
Shown at Normal River Levels
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10. River Crossing Bridge Pier Lighting
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11. River Crossing Bridge Pier Lighting
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12. Viaduct Piers –
View at Exit Ramp at State/Grant Street in Bettendorf
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13. Viaduct Piers
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14. Pedestrian Railings –
On Pedestrian Trail on Arch Span (River Side)
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15. Pedestrian Railings –
On Pedestrian Trail on Arch Span (Traffic Side)
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16. Pedestrian Railings –
On Pedestrian Trail on Arch Span (River & Traffic Side)
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17. Pedestrian Railings – View from Road (Illinois Bound)
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18. Pedestrian Railing for Overhead Bridges
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19. Pedestrian Trail Lighting (Night View)
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20. Pedestrian Overlook – Overhead View
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21. Pedestrian Overlook - Overhead View (Night)
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22. Pedestrian Overlook – Pedestrian View
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23. Pedestrian Overlook – Architectural Glass Object
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24. MSE (Mechanically Stabilized Earth) Retaining Walls
MSE WALL
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25. MSE (Mechanically Stabilized Earth) Retaining Walls
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26. Colors and Finishes
Arch rib - white
Facia girder – medium gray
Interior girders – weathering steel/painted near piers
26

27. Bridge Barriers – View from Road
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28. Bridge Abutment Maskwalls – View from I-74
ABUTMENTS
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29. Bridge Abutment Maskwalls – View from I-74 (Rendering)
ABUTMENTS
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30. Roadway Lighting
Mainline Fixture
Arch Span Fixture
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31. Roadway Lighting – Shown at 53rd Street Interchange
Pole Finish at
Corridor and
Viaducts
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32. Location of Identity Elements Location of
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33. Location of Identity Elements
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34. Location of Identity Elements
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35. Location of Identity Elements
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36. Location of Identity Elements
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37. Suggested Design for Identity Elements
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38. River Crossing – Location of Identity Elements
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39. Suggested Design for Identity Elements – Night View
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40. Suggested Design for Identity Elements On Overlook –
Night View
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41. Water Features & Identity Elements
Shown at the Grant/State St Interchange
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42. Water Feature & Identity Element (Motorist View)
Shown at the Grant/State St Interchange
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43. Landscape Area - Shown at the Kimberly Road &
Grant/State St Interchange
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44. Bettendorf Let Down Structure – View from River
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45. Bettendorf Let Down Structure – Pedestrian View
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46. Bettendorf Let Down Structure – Overall View
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