Western Bridge Engineers’ Seminar -> Presentations from the 2025 WBES at Tacoma, WA

Presentations from the 2025 Western Bridge Engineers' Seminar

Keynote Speakers
- Bridge Seismic Design – 2025, Perspective of a Practitioner / Instructor / Code Developer
  M. Lee Marsh (WSP)
- Interstate Bridge Replacement Program
  Rob Turton (WSP)
2A Design and Construction
- Brickyard–Seismic Analysis: True Pins for a Landslide
  Bradford Shaffer (AECOM), Gavin Viriyincy (AECOM), Cori Yoshida (AECOM)
- Littel Pedestrian Bridge
  Douglas Sarkkinen (Otak, Inc.)
- Ferguson Slide Avalanche Shed
  Grant Schuster (Caltrans)
2B Accelerated Bridge Construction
- On the Move: Design of California’s First Vehicular Steel Network Tied-Arch Bridge and Construction Using SPMTs
  Greg Griffin (David Evans and Associates), Eric Pheifer (Biggs Cardosa Associates)
- Experiments and Analysis of Steel Collar Plate with Shear Studs in Concrete Column Stubs Under Eccentric Load
  Cyrus Safai (Michael Baker International)
- Rebuilding an Urban Viaduct at the Speed of Segmental
  Sean Oroho (H&H)
2C Architectural and Historical
- NE 8th St. Signature Pedestrian Bridge
  Greg Hess (KPFF), Derek Kozak (KPFF)
- Preserving History: Repairing Steel Bridges
  Matthew Jarrett (Wiss, Janney, Elstner Associates, Inc.), Scott Litchfield (ITD)
- Repurposing of the Historic Wilburton Railroad Timber Trestle
  Joe E. Krajewski (HNTB)
3A BIM, Digitial Delivery
- Model Centric Workflow for the Interstate Bridge Replacement (IBR) Project
  Douglas James Dunrud (WSP)
- Caltrans’ Bridge Design BIM for Infrastructure (BIM4I) Effort
  Bin Shen (Caltrans)
- BIM Is More Than 3D Models
  Richard Brice (WSDOT)
3B Design and Construction
- Fractured Mechanics: The AASHTO Code Contradiction
  David Goodyear (Olympia WA)
- Replacement of the Arizona US-60 Queen Creek Bridge
  Navaphan Viboolmate (ADOT)
- Buried Bridge Innovations for Extension of Veterans Drive Through Tunnels Below I-5 Near Seattle-Tacoma Airport
  Cory Caywood (Jacobs), Joel Hahm (Contech Engineered Solutions)
3C Seismic
- Case Study: Caltrans Risk-Based Seismic Design (CT-RBSD) of the Colorado River Project at Topock
  Hamed Zargar Shotorbani (Caltrans)
- Seismic Retrofit of Severely Damaged Precast Bridge Piers Using Ultra-High Performance Concrete (UHPC)
  Kathryn Erika Hogarth (Burgess & Niple)
- Displacement-Based Seismic Design Practice and Challenges: Coachella Valley Channel Bridge Case Study
  Masoud Mehr (Michael Baker International), Basit Zuhaib Qayyum (Michael Baker International)
4A Rehabilitation and Preservation
- An In-Service Deck Replacement for the I-90 Columbia River Bridge at Vantage
  Anthony Mizumori (WSDOT)
- Micropile Tieback Pile Wall Design and Construction Under the Existing Bridges
  Jay Lee (Stantec)
- Ed Hendler Bridge In-Depth Cable Inspection and Analysis
  Matthew D. Baughman (COWI), Colt R. Tatum (WSDOT)
4B Foundation, Geotech
- Updates to the WSDOT Geotechnical Design Manual Seismic Design Recommendations
  Andrew Fiske (WSDOT)
- A Little Bit of Settlement Won’t Ruin Your Day: Retaining Wall Solutions on Shallow Foundations in Poor Soils
  Colby Cushing (Kleinfelder)
- Yankee Jims Bridge: Hybrid Shaft/Spread Footing Arch Abutment Design
  Anna Johnson (Consor), Matt Vaggione (Consor)
4C Transit
- Innovative Design and Seismic Analysis of the SR-43 Network Tied Arch Bridge for California High-Speed Rail
  Hadi Al-Khateeb (Jacobs)
- I-405 & NE 85th St Interchange and Bus Rapid Transit Project
  Eric Kelley (Parsons)
- Creative Bridge Design and Constructability Solutions for the TriMet Better Red Project
  Shane Brown (Parametrix), Ben Schlachter (Parametrix)
5A Seismic
- Development in Seismic Design of Bridges: Then, Now, and Future
  Anurag Upadhyay (Stantec), Jinquan Zhong (Stantec)
- Seismic Readiness in the Last Frontier: A Simulated Earthquake Drill for Bridge Inspectors
  Nicholas Murray (Alaska DOT&PF)
- Seismic and Dynamic Modeling Considerations for Special Complex Category High-Speed Rail Structures
  Aamir Durrani (HNTB)
5B Load Rating
- Challenges for Load Rating a Multi-Span Reinforced Concrete Bridge with Skewed and Non-Skewed Piers for Combined Construction Vehicles and Traffic Vehicles in North Bend, Washington
  Majid Jarrah (Parametrix)
- San Francisco-Oakland Bay Bridge Load Rating & Retrofit
  Quentin Marzari (Arup US, Inc.)
- California’s Underground Highways: Load Rating of Caltrans Tunnels
  Michael Kochly (HDR), Vamsi Tangirala (HDR)
5C Innovative Materials, UHPC
- NCHRP Domestic Scan 23-03 “Advances in Evaluation of Weld Quality”
  Leslie Daugherty (Alaska DOT&PF)
- Seattle Waterfront: BNSF Overcrossing & Retaining Wall RW-4
  Bernd Mauelshagen (Jacobs)
- Ultra-High-Performance Concrete (UHPC) for Repair, Retrofit, and Rehabilitation of Bridge Structures
  Bijan Khaleghi (Florida International University)
6A Design and Construction
- Why Didn’t You Replace These Bridges? Design and Construction Challenges on US-395 North Valleys Bridge Widenings
  Tiffany Carr (NDOT), Nathan Harrison (NDOT)
- Achieving Speed in Bridge Design with the New AISC/NSBA Standard Plans for Steel Bridges
  Brandon Chavel (National Steel Bridge Alliance)
- The $115 Million Makeover: Transforming the West Kingman Traffic Interchange
  David Benton (ADOT)
6B Rehabilitation and Preservation
- Design/Build Rehabilitation of the Murray Morgan Bridge
  Frank Marzella (H&H)
- World’s Longest Post-Tensioning, Strengthening the I-90 HMH Floating Bridge for Light Rail Conversion
  Greg Hess (KPFF Consulting), Brandon Alexander Kotulka (KPFF Consulting)
- Emergency Bridge Repairs in Idaho
  Mike Johnson (ITD)
6C Foundation, Geotech
- Caltrans Seismic Design Criteria: Overview of Changes from Version 2.0 to Version 2.1
  Christian O. Unanwa (Caltrans)
- Interstate Bridge Replacement Program’s Ground Improvement Test Program: Design & Construction
  John Horne (WSP), Rob Turton (WSP)
- Recent Findings and Recommendations for Side Resistance of Permanently Cased Drilled Shafts
  Kathryn A Petek (Shannon & Wilson), James J. Walters (Shannon & Wilson)
7A Alternative Delivery
- Bend North Corridor Design-Build Project: Design Builder Challenges and Innovations
  J.P. Loomis (Jacobs), Dan Chung (Kiewit)
- Riding the Rails to Success: Arizona’s First PDB for a Complicated Crossing
  Jason Carlaftes (WSP), Lauren Swiatkowski (WSP)
- Risk and Cost Mitigation Using Progressive Design Build: Bangerter Highway at 4700S Case Study
  Darby Hacker (Michael Baker International)
7B Design and Construction
- When Two Bridges Become One: Design Challenges of a Bifurcated Flyover Bridge
  Brad Wilton (TYLin)
- SR305 Sam Snyder Creek Fish Barrier Removal
  Shane Brown (Parametrix), Nina Cable (Parametrix)
- Opportunities for Bridge Replacements Using Concrete Segmental
  Eric Johnson (H&H)
7C Bridge Management
- Application of Probabilistic Risk Analysis Techniques for Asset Management and Design of Transportation Structures
  Anurag Upadhyay (Stantec)
- Optimizing Bridge Asset Management and Maintenance: A Strategic Approach by the City of Los Angeles Bureau of Engineering
  Scott Gibson (City of Los Angeles), Nadir Shah (City of Los Angeles)
- Navigating the World of Bridge Asset Management: Colorado DOT’s SIMSA Program
  Brann Greager (HDR), Lexi Kimes (HDR)
8A Design and Construction
- Achieving Better Accuracy When Predicting Steel Girder Dead Load Deflections from Line Girder Analysis
  Thomas Eberhardt (HDR), Dusten Olds (HDR)
- Lessons Learned on How to Erect Long Lightweight Prestressed Concrete Girders
  Kevin T. Dusenberry (Jacobs)
- Design and Construction of the New Mount Vernon Viaduct
  Claus Frederiksen (COWI), Ben Turner (Dan Brown and Associates)
8B Accelerated Bridge Construction
- ABC-Innovative Approach Using Prefabricated Steel Bridges for Thurston County Fish Passage
  Doug Myers (Contech Engineered Solutions), Marcus D. Storvick (Thurston County Public Works)
- Lessons Learned from Various Earthquake and Storm Damage Emergency Repair Projects in the Northern California Pacific Coast
  Jason Hickey (Mark Thomas), Tony Seghetti (County of Humboldt), Sebastian Varela (Mark Thomas)
- I-5 Over 26th Avenue: Value Through Creativity
  Joel B. Tubbs (David Evans and Associates)
8C Rehabilitation and Preservation
- Broadway Bridge Deck Replacement
  Erin Stehlgens (H&H)
- Vessel Collision Evaluation and Design for Major Bridges
  Matthew J. Lengyel (GM2, Inc.)
- Reimagining the Higgins Avenue Bridge Through Rehabilitation
  Brian Corson-Marquess (HDR), Dustin Hirose (HDR)
9A Design and Construction
- What Kind of Animal Am I? Challenges and Opportunities in Designing the Roanoke Lid Bridge Over SR520
  Raj Bharil (Biggs Cardosa Associates), Thomas Densford (Biggs Cardosa Associates), Brendan Kempf (AECOM)
- Denali National Park’s Pretty Rocks Bridge: Structural Details
  Devin Altman (Jacobs), Andrew Wahr (Jacobs)
- Panther Creek Bridge (CA 2025 Seismic Safety Award Winner)
  Habiburahman Hotaki (Caltrans)
9B Rehabilitation and Preservation
- Vincent Thomas Suspension Bridge Deck Replacement: Design Effort Utilizing CMGC Delivery
  Michael Jones (HNTB)
- Rehabilitation of the Historic I-5 Ship Canal Bridge
  Joe E. Krajewski (HNTB)
- Overheight Vehicle Collision Repairs for Peters Creek Overcrossing Bridge
  Jared Thomas Jones (Alaska DOT&PF)
9C Seismic
- Seismic Retrofit of Curved and Slender Pedestrian Bridges
  Yeliz Firat (WSP)
- Bolinas Bridge: Balancing Fault Rupture and Tsunami Design
  Marshall Moore (Mark Thomas)
- Southern Oregon Seismic Bridges Project: Creative Solutions for Restrained Sites
  Eric E. Bonn (DOWL)
10 Closing Session
- West Seattle High-Rise Bridge: Post Return to Service
  Greg Banks (WSP)
- Bridge Demolition Engineering Best Practices
  Sam Kevern (Michael Baker International)
- Post Street Bridge Rehabilitation, Spokane, WA
  Greg Hess (KPFF Consulting), Brandon Alexander Kotulka (KPFF Consulting)