BEC

Bridge Engineering Center

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Brent Phares

About Brent

Completed Research


Dec, 2024
Advances in State Bridge Load Rating Processes and Practices: A Summary Report of 2024 Bridge Load Rating Peer Exchanges
Oct, 2024
Performance Evaluation of Very Early Strength Latex Modified Concrete (LMC-VE) Overlay
Oct, 2024
Accelerated Construction of Highway Steel Overhead Sign Truss (SOST) through the Implementation of U-Bolt Connections
Oct, 2024
Impact of Legalized 25-kip Axle Loads for Self-Propelled Implements of Husbandry on Iowa Bridges
Mar, 2024
Partially Grouted Revetment for Low-Volume Road Bridges
Oct, 2023
Increase Service Life at Bridge Ends through Improved Abutment and Approach Slab Details and Water Management Practices
Oct, 2023
Limitations for Semi-Integral Abutment Bridges
Oct, 2023
Helical Pile Foundation Implementation for Bridge Structures
Mar, 2023
Assessment of Bridge Decks with Glass Fiber Reinforced Polymer (GFRP) Reinforcement
Feb, 2023
Field Demonstration of an Innovative Box Beam Connection
Dec, 2022
Multi-Span Lateral Slide Laboratory Investigation: Phase II
Dec, 2022
Guide for Orthotropic Steel Deck Level 1 Design
Dec, 2022
Advancing Bridge Load Rating: State of Practice and Frameworks
Nov, 2022
Evaluation of the Use of IRI Data to Estimate Bridge Impact Factor
Sep, 2022
Evaluation of Performance of A709 Grade QST 65 Steel
Sep, 2022
Steel Reinforcement Section Loss Guidance Tables
Sep, 2022
Timber Transportation Structures Research Needs Assessment: An Update
Sep, 2022
Investigation of the Causes of Transverse Bridge Deck Cracking
Aug, 2022
Assessment, Repair and Replacement of Bridges Exposed to Fire Damage
Jul, 2022
Evaluation of the Use of Link Slabs in Bridge Projects
Jun, 2022
Implementation of Recommendations for Eliminating Longitudinal Median Joints in Wide Bridges
Mar, 2022
Concrete Box Culvert Earth Pressure Monitoring
Dec, 2021
Fiber-Reinforced Concrete for Bridge Decks
Dec, 2021
Analytical and Testing Methods for Rating Longitudinal Laminated Timber Slab Bridges
Dec, 2021
Iowa Automated Permitting System Report to Legislature
Oct, 2021
Re-Tightening the Large Anchor Bolts of Support Structures for Signs and Luminaires: Phase II
Oct, 2021
Experimental Validation of a Rapid Assessment Tool for Pile Capacity and Stability in Response to Scour Situations
Sep, 2021
Evaluation of the Performance of a Short-Span T-Beam Bridge
Sep, 2021
Fatigue Evaluation of Reinforced and Unreinforced Hand Holes in High-Mast Lighting Towers
Sep, 2021
Development of Non-Proprietary Ultra-High Performance Concrete (UHPC) for Iowa Bridges
Apr, 2021
Determination of the Forces in X-Frames in Curved Girder Bridges
Apr, 2021
Implementation of the Negative Moment Reinforcing Detail Recommendations
Sep, 2020
Beam End Repair for Prestressed Concrete Beams
Aug, 2020
Protocols for Concrete Bridge Deck Protections and Treatments
Jul, 2020
Evaluation, Laboratory Testing, Construction Documentation, and Field Testing/Monitoring of US 52 Overflow Bridge over Mississippi River
May, 2020
Implementation of New Guidelines for Tightening Large Anchor Bolts of Support Structures for Signs and Luminaires
Apr, 2020
Accelerated Repair of Expansion Joints
Feb, 2020
Implementation of Structural Health Monitoring System
Feb, 2020
Performance of Existing ABC Projects
Feb, 2020
Field Investigation of Bridge Deck Reinforced with Glass Fiber Reinforced Polymer (GFRP) Rebar
Feb, 2020
Long Term Performance of Overlays: Thin Epoxy Overlay vs. Traditional Rigid Overlay
Jan, 2020
Development of a Structural Health Monitoring System to Evaluate Structural Capacity and Estimate Remaining Service Life for Bridges
Jan, 2020
Evaluation of the Performance of A1010 Bridge Steel
Sep, 2019
Evaluation of Alternative Abutment Piling for Low-Volume Road Bridges
Aug, 2019
Investigation of Exterior Girder Rotation and the Effect of Skew during Deck Placement
Jul, 2019
Laboratory and Field Evaluation of an Alternative UHPC Mix and an Associated UHPC Bridge
Jul, 2019
Development of a Smart Timber Bridge–Phase III: Moisture and Strain Sensor Investigation for Historic Covered Bridges
Jun, 2019
Determination of U-Bolt Connection Load Capacities in Overhead Sign Support Structures
Apr, 2019
Construction of New Substructure Beneath Existing Bridges
Feb, 2019
Investigation and Evaluation of the Iowa Department of Transportation Bridge Deck Epoxy Injection Process
Feb, 2019
Laboratory and Field Evaluation of a Composite Glued-Laminated Girder to Deck Connection
Dec, 2018
Inspection and QA/QC for ABC Projects
Dec, 2018
Material Design and Structural Configuration of Link Slabs for ABC Applications
Nov, 2018
Assessing Bridge Characteristics for Use and Importance as Roosting Habitats for Bats
Sep, 2018
Cost-Competitive Timber Bridge Designs for Long-Term Performance
Sep, 2018
Integration of Structural Health Monitoring into Multilayer Statewide Bridge Maintenance and Management Practices
Aug, 2018
Autonomous Sensing Skin for Detection and Localization of Fatigue Cracks
Aug, 2018
Testing, Performance Evaluation, and Documentation of the Little Silver Creek Bridge: An Accelerated Innovation Deployment (AID) Project using Accelerated Bridge Construction
Jun, 2018
Buchanan County Smart Timber GRS Abutment Bridge
May, 2018
Evaluation of the Metal Fatigue Solutions Electrochemical Fatigue Sensor System
May, 2018
Development of Rural Road Bridge Weigh-in-Motion System to Assess Weight and Configuration of Farm-to-Market Vehicles
Apr, 2018
Big Data-­Driven Prediction of Long-Term Bridge Performance and Management Improvements
Mar, 2018
Development of a Rapid Assessment Tool for Pile Capacity and Stability in Response to Scour Situations
Mar, 2018
Effect of Wind-Induced Unsteady Vortex Shedding, Diurnal Temperature Changes, and Transit Conditions on Truss Structures Supporting Large Highway Signs
Feb, 2018
Investigation of MacroDefect-Free Concrete for ABC including Robotic Construction
Sep, 2017
Evaluation of the Buchanan County IBRD Bridge on Victor Avenue over Prairie Creek
Aug, 2017
Study of the Impacts of Implements of Husbandry on Iowa Bridges
Jun, 2017
Buchanan County IBRD Bridge Project: Evaluation of a Folded Plate Girder Bridge System
Jun, 2017
Context-Sensitive Designs: Testing of Multi-Performance Level Box Beam Standards
Jun, 2017
Culvert Lateral Earth Pressure Sensors: Instrumentation of a Box Culvert During and After Construction
Jun, 2017
Improved Analytical Techniques for Historic Covered Bridges-Phase II
Jun, 2017
Improved Ratings for Covered Bridges through Load Testing – Phase II
Jun, 2017
Development of a Smart Timber Bridge-Phase V: Development of a Vehicle Characterization
Oct, 2016
Strength, Durability, and Application of Grouted Couplers for Integral Abutments in Accelerated Bridge Construction
Oct, 2016
Economic Impact of Multi-Span, Prestressed Concrete Girder Bridges Designed as Simple Span versus Continuous Span
Jun, 2016
Evaluation of Performance of Innovative Bridges in Wisconsin
Jun, 2016
Polymer Concrete Overlay Evaluation
Jun, 2016
Upgrading Bridge Rails on Low-Volume Roads in Iowa
May, 2016
Evaluation and Testing of a Lightweight Fine Aggregate Concrete Bridge Deck in Buchanan County, Iowa
May, 2016
Investigation of the Effect of Speed on the Dynamic Impact Factor for Bridges with Different Entrance Conditions
May, 2016
Investigation of the Impact of Dual-Lane Axle Spacing on Lateral Load Distribution
Apr, 2016
Investigation of Techniques for Accelerating the Construction of Bridge Deck Overlays
Mar, 2016
Investigation of the High-Strength Bolt-Tightening Verification Techniques
Feb, 2016
Laboratory Investigation of Bridge Strip Seal Joint Termination Details
Dec, 2015
Synthesis on the Use of Accelerated Bridge Construction Approaches for Bridge Rehabilitation
Nov, 2015
MnDOT LRRB Development of Cost-Effective Timber Bridge Repair Techniques for Minnesota
Sep, 2015
Evaluation of the Need for Longitudinal Median Joints in Bridge Decks on Dual Structures
Sep, 2015
Investigation of Negative Moment Reinforcing in Bridge Decks
Aug, 2015
Laboratory Investigation of Grouted Coupler Connection Details for ABC Bridge Projects
Jun, 2015
Implementation of a Pilot Continuous Monitoring System: Iowa Falls Arch Bridge
Jun, 2015
Iowa ABC Connections
May, 2015
Laboratory Investigation of Concrete Beam-End Treatments
May, 2015
Permeability Performance and Lateral Load for Granular Backfill behind Abutments
Apr, 2015
Evaluation of Air-Coupled Impact-Echo Test Method
Feb, 2015
Performance and Design of Bridge Approach Panels in Wisconsin
Jan, 2015
Development of a Smart Timber Bridge-Development of Data Processing Techniques for Determining Changes in Structural Stiffness
Jan, 2015
Development and Integration of Advanced Timber Bridge Inspection Techniques for NBIS
Dec, 2014
Investigation of Field Corrosion Performance and Bond/Development Length of Galvanized Reinforcing Steel
Aug, 2014
Methods for Removing Concrete Decks from Bridge Girders
Jun, 2014
Work Plan for the Bridge Center and Bridge Engineer Program FY2014-Dynamic Sensor
Jan, 2014
Field Monitoring of Curved Girder Bridges with Integral Abutments
Oct, 2013
Bridge Damage Detection: Integration of Structural Health Monitoring System Concepts and Components – A Statewide Collaboration
Aug, 2013
Pilot Project – Demonstration of Capabilities and Benefits of Bridge Load Rating through Physical Testing
May, 2013
Wind Loads on Dynamic Message Cabinets and Behavior of Supporting Trusses
Apr, 2013
Laboratory and Field Testing of an Accelerated Bridge Construction Demonstration Bridge: US Highway 6 Bridge over Keg Creek
Dec, 2012
Field Evaluation of Methods to Minimize Transverse Glulam Deck Deflection Phase III
Dec, 2012
Performance of Lightweight Foam Concrete Fill and Post-Grouted Drilled Shafts in Broadway Viaduct Replacement
Sep, 2012
Timber Abutment Piling and Back Wall Rehabilitation and Repair
May, 2012
Evaluation of Various Methods for Deflecting Debris from Bridge Piers
May, 2012
Wind Monitoring of the Saylorville and Red Rock Reservoir Bridges with Remote, Cellular-Based Notifications
Mar, 2012
Literature Review and Assessment of Nanotechnology for Sensing of Timber Transportation Structures
Dec, 2011
Evaluation of the Buena Vista IBRD Bridge: A Furthering of Accelerated Bridge Construction in Iowa
Dec, 2011
Field Testing and Evaluation of a Demonstration Timber Bridge
Jun, 2011
Preservation of Covered Bridges
Jan, 2011
Design, Construction, and Field Testing of an Ultra-High Performance Concrete Pi-Girder Bridge
Jan, 2011
Identification and Evaluation of Pavement-Bridge Interface Ride Quality Improvement and Corrective Strategies
Dec, 2010
Evaluation of a Bridge Constructed with Ultra-High Performance Concrete
Dec, 2010
Implementation and Evaluation of Smart Timber Bridge Concepts to Provide Continuous Structural Condition Assessment
Nov, 2010
Structural Design, Construction, and Evaluation of a Prestressed Concrete Bridge Using Ultra High Performance Concrete Pi Girders
Jun, 2010
Evaluation of the 24th Street Bridge, Interstate 80/29, Council Bluffs, Iowa
Apr, 2010
Instrumentation and Monitoring of Precast Bridge Approach Tied to an Integral Abutment in Bremer County
Apr, 2010
Testing and Long-Term Monitoring of 9th Street Bridge Over I-235 in Des Moines: Integral Abutments Supported on Steel Pile/Concrete Drilled Shaft in Glacial Clay
Feb, 2010
An Experimental Validation of a Statistical-Based Damage Detection Approach
Feb, 2010
Remote Monitoring of Historic Covered Timber Bridges in Madison County for the Prevention of Arson and Vandalism
Oct, 2009
Innovative Bridge Designs for Rapid Renewal
Sep, 2009
Design and Evaluation of a Single-Span Bridge Using Ultra-High Performance Concrete
Jul, 2009
Bridge Rails and Approach Railing for Low-Volume Roads in Iowa (TR-592)
Jan, 2009
Laboratory and Field Testing and Evaluation of Precast Bridge Elements
Jan, 2009
Madison County Bridge Evaluation
Oct, 2008
Construction and Evaluation of a Prestressed Concrete Bridge Constructed Using Ultra High-Performance Concrete
Sep, 2008
Evaluation of a Bridge Constructed Using Accelerated Construction Practices
Sep, 2008
PONTIS, Implementation and Operation: Iowa DOT and Counties, Phase III: Implementation and Operation
Aug, 2008
Evaluation of FRP Temporary Bypass Bridge
Jun, 2008
Instrumentation and Monitoring of Precast, Post-tensioned Bridge Approach Pavement
May, 2008
Development of a High Speed Rigid Pavement Analyzer – Phase I Feasibility and Need Study
Feb, 2008
Evaluation of a Precast, Post-Tensioned Bridge Paving Notch
Dec, 2007
Development and Demonstration of Fleet Management Strategies for Timber Bridges
Nov, 2007
Development of Fatigue Design Procedures for Slender, Tapered Support Structures for Highway Signs, Luminaries, and Traffic Signals Subjected to Wind-Induced Excitation from Vortex Shedding and Buffeting
Oct, 2007
Development of a Device for Analysis of Portland Cement Concrete and Composite Pavements: Phase 1 Feasibility Study
Jun, 2007
Development of a 5 Year Research Plan for the Development of a Smart Glued-Laminated Timber Bridge
Jun, 2007
Needs Assessment for Advancing Timber Utilization in Mainline and Shortline Railroad Applications
Mar, 2007
Evaluation of a Timber Bridge for the Secondary Road System Using FRP-Reinforced Glulam Girders
Dec, 2006
Evaluation of a Prestressed Concrete Bridge Constructed using Ultra High-Performance Concrete
Dec, 2006
Evaluation of a Single-Span Steel-Girder Bridge Using a Steel-Free Deck System in Tama County
May, 2006
Evaluation of a Bridge Constructed Using High-Peformance Steel
May, 2006
Evaluation of Corrosion Resistant Steel Reinforcing in the Deck Slab of a Three Span Prestressed Girder Bridge
Apr, 2006
Performance Evaluation of Steel Bridges, Phase II (TR-493)
Feb, 2006
Evaluation of a Three-Span, Prestressed Concrete Girder Bridge Constructed with FRP Components
Dec, 2005
Monitoring Wind-Induced Vibrations/Stresses in a High Mast Lighting Tower
Sep, 2005
Development and Implementation of Design Recommendations for the Minimization of Timber Deck Panel Differential Deflection
Sep, 2005
Enhancement of Wisconsin DOT NDE Capabilities
Aug, 2005
Evaluation of a Steel Girder Bridge Strengthened Using Fiber Reinforced Polymer Plates
Dec, 2004
Development of Acceptable Live Load Deflection Criteria for Various Timber Superstructure and Deck Types
Dec, 2004
Evaluation of the Effectiveness of Glued Laminated Helper Stringers
Dec, 2004
Impacts of Overweight Implements of Husbandry on Minnesota Roads and Bridges
Sep, 2004
Health Monitoring of Bridge Structures and Components Using Smart-Structure Technology
Dec, 2003
Monitoring and Evaluation of the Westbound Roadway of the Iowa River Bridge
Oct, 2003
Evaluation of a Post-tension Strengthened Steel Girder Bridge Using FRP Rods/Strands
Aug, 2003
Development of Abutment Design Standards for Local Bridge Designs

In-Progress Research


Jun, 2023
Load Rating Program Technical Support Services for Conducting Peer Exchange
Nov, 2021
Deployment of Structural Health Monitoring of Bridges in the State of Iowa: Strategic Plan and Demonstration
Jun, 2019
Laboratory Investigation of Cross-Laminated (CLT) Decks for Bridge Applications
May, 2019
Crash Testing of a Precast Concrete Barrier
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