Bridges and culverts

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Active and Completed Projects

• Assessing The Capacity of Four Steel Hinges Extracted from Existing Bridges
  (09/2025)
• Development of Non-Proprietary Ultra-High Performance Concrete (UHPC) Prestressed Bridge Girders
  (09/2024)
• Species from Feces: A New Tool to Identify Bats in Culverts and on Bridges
  (08/2024)
• Potential Impacts of Climate Change on Thermally Induced Loading in Minnesota Bridges
  (06/2024)
• Understanding Causes of Concrete Culvert Pipe Joint Separation
  (09/2023)
• Deck Reinforcement Detailing and Concrete Mix Additives to Reduce Bridge Deck Cracking
  (07/2023)
• Ice Loading on Piers for Minnesota's Bridges
  (07/2023)
• Assessing the Need for Floodplain Culverts Based on Geomorphology
  (06/2023)
• Performance Evaluation of Reinforced Concrete Box Culverts
  (10/2022)
• Thinking inside the box (culvert): Developing a low-cost, easy-to-install retrofit prototype for fish passage
  (07/2022)
• Steel Pipe Standards
  (12/2021)
• Evaluation of Corrugated HDPE Pipes Manufactured with Recycled Content
  (08/2021)
• Load Rating Assessment of Three Slab-Span Bridges over Shingle Creek
  (06/2020)
• Implementation of Culvert Design Guide for Stream Connectivity and Aquatic Organism Passage (AOP)
  (10/2019)
• Assessing Culverts in Minnesota: Fish Passage and Storm Vulnerability
  (07/2018)
• 10 Year Review of Monitoring System on I-35W Saint Anthony Falls Bridge
  (04/2018)
• Debonded prestressed strand in prestressed beams
  (12/2017)
• Anchorage of epoxy-coated rebar using chemical adhesives
  (11/2017)
• Bridge Deck Performance
  (11/2017)
• Remaining Service Life Asset Measure, Phase 1
  (06/2017)
• Experimental Shear Capacity Comparison Between Repaired and Unrepaired Girder Ends
  (03/2017)
• Minnesota Culvert Design Guidance for Aquatic Species Passage and Stream Connectivity
  (06/2016)
• Displacement Monitoring of I35W Bridge with Current VibrationBased System
  (06/2016)
• Enriched Sensor Data for Enhanced Bridge Weigh-in-Motion (eBWIM) Applications
  (05/2016)
• Cost-competitive Timber Bridge Designs for Long Term Performance
  (12/2015)
• Feasibility of vibration-based long-term bridge monitoring using I35W St. Anthony Falls Bridge
  (09/2015)
• Hydraulic Power Supply for the Mechanical Testing of Resilient and Sustainable Structures, Pavements, Geomaterials, and Medical Devices
  (07/2015)
• Integration of Advanced Timber Bridge Inspection Techniques
  (01/2015)
• Use of Mussel Spat Rope for Fish Passage in Culverts
  (11/2014)
• High Fidelity Simulation of Bridge Foundation Scour at the Mississippi River Bridge, Bridge No. 9321
  (04/2014)
• Culvert Length and Interior Lighting Impacts to Topeka Shiner Passage
  (04/2014)
• Culvert Design, Installation and Maintenance Independent On-Line Distance Learning Course
  (08/2013)
• Minnesota Steel Culvert Pipe Service Life Map
  (07/2013)
• Effect of Temperature on Prestressed Concrete Bridge Girder Strand Stress During Fabrication
  (06/2013)
• Development and Integration of Advanced Timber Bridge Inspection Techniques for NBIS
  (08/2012)
• Laboratory Study of Culvert Sedimentation for Fish Passage
  (08/2012)
• Anchorage of Shear Reinforcement in Prestressed Concrete Bridge Girders
  (06/2012)
• Monitoring of Fracture Critical Steel Bridges - Phase III
  (06/2012)
• Time-Dependent Considerations of I35W St. Anthony Falls Bridge Including Long-Term Monitoring Applications
  (06/2012)
• Matrix (Partially Grouted) Riprap Lab Flume Study
  (11/2011)
• Investigation of Shear Distribution Factors in Prestressed Concrete Girder Bridges
  (09/2011)
• Continued Field Testing and Refinement of Novel Water and Ice Sensor Systems on Bridge Decks - FY12 NATSRL
  (07/2011)
• Size- and Shape-Effects on Safety Factors of Quasibrittle Structures
  (06/2011)
• A Research Plan and Factors Effecting Service Life for Culvert Pipe Materials in Minnesota
  (04/2011)
• Scour Monitoring Technology Implementation
  (04/2011)
• Innovative Technologies for Lifetime Extension of an Aging Inventory of Vulnerable Bridges
  (02/2011)
• Assessment of the Health of Structural Systems via Laser-Enabled Agile Sensing
  (02/2011)
• Development of an Advanced Warning System for Fracture Critical Steel Bridges - Phase II
  (09/2010)
• Traffic Impacts of Bridge Closures 2: Saint Croix Bridge
  (07/2010)
• Inspection of In-Place Bridges Constructed with Grouted Post-Tensioning Ducts
  (07/2010)
• Comparative Performance Study of Chip Seal and Bonded Wear Course Systems Applied to Bridge Decks and Approaches
  (07/2010)
• Deployment and Field Testing of Novel Water and Ice Sensor Systems on Bridge Decks - FY11 NATSRL
  (07/2010)
• Validation of Prestressed Concrete I-Beam Deflection and Camber Estimates
  (05/2010)
• Traffic Impacts of Bridge Closures 1: Lafayette Bridge
  (04/2010)
• Response Modification for Enhanced Operation and Safety of Bridges
  (08/2009)
• Performance Assessment of Oversized Culvert to Accommodate Fish Passage
  (08/2009)
• Full-Depth Precast Concrete Bridge Deck System Phase II
  (07/2009)
• U.S. Corp of Army Engineers Construction Engineering Research Laboratory Bridge Health Monitoring
  (07/2009)
• Development of an Advanced Structural Monitoring System for Fracture Critical Steel Bridges
  (06/2009)
• Wakota Bridge Monitoring Program
  (06/2009)
• Detection of Water and Ice on Bridge Structures by AC Impedance and Dielectric Relaxation Spectroscopy (Phase III) - FY10 NATSRL
  (06/2009)
• Monitoring Instrumentation of I35W Bridge
  (02/2009)
• Bridge scour monitoring technologies: Development of evaluation and selection protocols for application on river bridges in Minnesota
  (09/2008)
• Detection of Water and Ice on Bridge Structures by AC Impedance and Dielectric Relaxation Spectroscopy (Phase II) - FY09 NATSRL
  (07/2008)
• Traffic Flow and Road User Impacts of the Collapse of the I-35W Bridge over the Mississippi River
  (06/2008)
• Bridge Health Monitoring- A Survey of Methods
  (03/2008)
• Implementing a Database Classification of Mn/DOT Steel Bridges with Fracture/Fatigue Critical Details
  (03/2008)
• Evaluation of the SafeLaneTM Overlay System for Crash Reduction on Bridge Deck Surfaces
  (03/2008)
• A Computational Study of the I-35W Bridge Collapse
  (01/2008)
• Cost Analysis of Alternative Culvert Installation Practices in Minnesota
  (10/2007)
• SGER: Responding to the Unexpected: Understanding Travelers' Behavioral Choices in the Wake of the MS River Bridge Collapse
  (09/2007)
• Detection of Water and Ice on Bridge Structures by AC Impedance and Dielectric Relaxation Spectroscopy (Phase I) - FY08 NATSRL
  (06/2007)
• Discrepancies in Shear Strength of Prestressed Beams with Different Specifications
  (09/2006)
• Crack and Concrete Deck Sealant Performance
  (09/2006)
• Development of Flexural Vibration Inspection Equipment and Techniques to Rapidly Assess the Structural Health of Rural Bridge Systems; Phase II
  (09/2006)
• NCHRP Project 10-71 Cast-in-Place Concrete Connections for Precast Deck Systems
  (07/2006)
• Impending Box Impact Warning System for Prevention of Snowplow-Bridge Impacts - FY07 NATSRL
  (07/2006)
• Instrumentation of a Full Depth Precast Concrete Bridge Deck System
  (09/2005)
• Monitoring and Analysis of a Full Depth Precast Concrete Bridge Deck
  (08/2005)
• Evaluation and Analysis of Mn/DOT Steel Bridge Inventory for Prioritizing Bridge Maintenance Needs
  (08/2005)
• Application of Precast Decks and other Elements to Bridge Structures
  (11/2004)
• Determining Shear Capacity of Prestressed Concrete Beams
  (11/2004)
• Determining Economic Strategies for Repair and Replacement of Low Slump Overlays of Bridge Decks
  (08/2004)
• Investigation of Deterioration of Stainless Steel Dowel Tubes Under Repeated Loading
  (08/2004)
• Rapid Assessment and Decision Making Strategies for Distortional Fatigue Multi-Girder Steel Bridges - Phase 4
  (07/2004)
• Development of Flexural Vibration Inspection Techniques to Rapidly Assess the Structural Health of Rural Bridge Systems - FY05 NATSRL
  (07/2004)
• Modeling Issues Associated with Sensor Technologies for the Nondestructive Evaluation of Timber Bridges - FY05 NATSRL
  (07/2004)
• Self-Compacting Concrete (SCC) for Prestressed Bridge Girders
  (09/2003)
• Stability Tests of Prestressed Concrete Through-Girder Pedestrian Bridge under Lateral Impact - Phase 2
  (06/2003)
• Fatigue-resistant Design Details for Overhead Signs, Mast-arm Signal Poles and Lighting Standards
  (04/2003)
• Load Rating by Load Testing on Bridges
  (01/2003)
• Stability Analysis of Prestressed Concrete Through Girder Pedestrian Bridge Under Lateral Impact - Phase I
  (01/2002)
• Fatigue Evaluation of Bridge 69832
  (09/2001)
• Rapid Assessment and Decision Making Strategies for Distortional Fatigue Multi-Girder Steel Bridges
  (09/2001)
• Behavior of Concrete Integral Abutments
  (02/2001)
• Analysis Tools and Rapid Screening Data for Distortional Fatigue in Steel Bridge Girders
  (08/2000)
• Use of FRP Sheets to Retrofit (Strengthen) Pier Caps
  (01/2000)
• Experimental Investigation of the Effect of Vertical Pre-Release Cracks in Prestressed Bridge Girders
  (12/1999)
• Effects of Increasing Truck Weight on Steel and Prestressed Bridges
  (12/1999)
• Use of Adhesives to Repair out of Plane Bending at Stiffener to Web Connections
  (11/1999)
• Fatigue Assessment of Deck Truss of Bridge 9340 TH I35W over the Mississippi River
  (05/1999)
• Repair of Fatigued Steel Bridge Girders with Carbon Fiber Strips
  (01/1999)
• Stresses in the Negative Moment Region of Composite Steel Bridges
  (09/1998)
• Remote Monitoring of Distortional Fatigue in Multi-Girder Steel Bridges
  (07/1998)
• Effect of Pre-release Cracks on Prestressed Bridge Girder Performance including Remaining Fatigue Life
  (06/1998)
• Fatigue Evaluation of Bridge 4654
  (06/1998)
• Transverse Stiffener Beams in Longitudinally Nail Laminated Timber Decks
  (11/1997)
• Equilibrium Moisture Content of Wood in Minnesota Timber Bridges
  (10/1997)
• Evaluation of Electrochemical Chloride Extraction
  (08/1997)
• Acoustic Emission Monitoring of Fatigue Cracks in Steel Bridge Girders
  (06/1997)
• Development Length of GFRP Reinforcement in Concrete Bridge Decks
  (02/1997)
• Live Load Stresses in Steel Curved Girder Bridges
  (02/1997)
• Stability of Pile Groups
  (09/1996)
• Monitoring and Assessment Program for Wabasha County Bridge
  (09/1996)
• Assessing Failure with Acoustic Emissions
  (08/1996)
• Evaluation of Timber Bridge Wear Surfaces
  (06/1996)
• Acoustic Emission Equipment for Infrastructure Monitoring
  (01/1996)
• Evaluation of Retrofit Procedures for Nail-Laminated and Stringer Bridges
  (06/1995)
• Repair of Metal Culverts - Phase 2
  (06/1995)
• Field Performance of an Integral Abutment Bridge
  (06/1995)
• Release Methodology of Prestressed Strands
  (11/1994)
• Cracking in Concrete Bridge Decks
  (11/1994)
• Repair of Metal Culverts, Phase 1
  (10/1994)
• Stresses in Steel Curved Girder Bridges
  (08/1994)
• Use of Non-Metallic Reinforcement in Concrete Structures
  (07/1994)
• High Strength Concrete: Applications to Bridges
  (03/1992)