- Topic Submission
- Discussion & Evaluation
- Development
- Project
Bridges & Structures
Co-Author
Is this related to or a continuation of a previous Iowa DOT research project?
No
Does this idea include matching funds?
Yes
Amount of Matching Funds
$ 70,000
Source of Matching Funds
ABC-University Transportation Center
Anticipated Benefits
Helical piles as a deep foundation alternative for bridge structures will be explored. Helical piles offer high capacities and speed of installation and can be installed using a multitude of equipment types (e.g., skid steer, back hoe, or excavator) which can result in a more economical solution. Additionally, it is anticipated project durations can be reduced thereby lessening disruption and costs to road users and providing greater measures of safety to contractors.
Focus Area
Technology
Research Program
IHRB
Project Title
Helical Pile Foundation Implementation for Bridge Structures
Project Number
TR-800
Contracted Agency
Iowa State University
Principal Investigator
Funding Program
Iowa Highway Research Board
Project Funding
$70,137
Project Funding Including External Sources
$70,137
Project Start Date
12/01/2021
Current Project End Date
10/30/2023
Project Abstract
Recent advancement in bridge construction technologies, especially with respect to bridge decks and superstructures have become commonplace in new bridge projects. Substructure construction has not made the same advancements, however. There are existing technologies that have potential for simplifying and expediting the construction of bridge substructures at the same or reduced cost using equipment that is more readily available. In this project, helical pile foundation implementation for bridges will be investigated and a design guide will be produced. This tool will give engineers direction for alternative deep foundation options on bridge structures. This is an advantage for any bridge project, but particularly for low-volume roads where budgetary considerations tend to be of specific priority.
Project Complete Date
10/27/2023
Project Deliverables
Research Solutions Brief
Final Report Abstract
This project investigated helical pile foundation implementation for bridges, resulting in this design and construction guide. The simplicity and speed of helical pile installation, along with the ability to work within areas of limited size with smaller, more maneuverable equipment, can accelerate the construction of bridge structure foundations. This guide provides bridge engineers and designers with direction and specifications for this substructure foundation option, which can be advantageous on any bridge project, but particularly for low-volume roads where budgetary considerations tend to be a specific priority. This guide includes many useful design specification reference tables and also useful construction and installation documentation tools as examples and as table forms that can be used for helical pile bridge foundations
Project Champion
Project Manager
Delivering targeted solutions for Iowa's transportation future.
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