
ABOUT NAWN FORENSICS
We provide expert forensic analysis to the legal community in litigation matters related to the movement of pedestrians and vehicles and the built environment.
With over 36 years’ experience in Civil and Structural Engineering, Mr. Nawn has a BS and MS in Civil Engineering and holds a Professional Engineers license in nine states. A Fellow in the National Society of Professional Engineers and a Certified Professional Traffic Operations engineer, John is also an Adjunct Professor of Highway and Transportation Engineering at two universities and has completed over 500 expert reports including testimony in deposition and/or trial over 50 times as an expert witness, in local, state, and federal court in multiple states and jurisdictions.
50+
Trial and Deposition
expert testimony
600
Expert Reports
9
State Licenses

HIGHWAY CONSTRUCTION AND CLAIMS
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Construction Claims and Safety
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Accidents (Vehicle, Pedestrian and Construction)
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Work Zones
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Intersections, Roadways, and Interstate Highways
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Signage, Traffic Controls and Markings
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Regulations, Codes and Standards
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Utilities
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Professional Liability
HIGHWAY SAFETY, WORK ZONES AND ACCIDENT RECONSTRUCTION
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Clear Zones, Sight Distances and Traffic Control
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Construction Claims and Safety
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Accidents (Vehicle, Pedestrian and Construction)
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Curves, Grades and Guiderails
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Intersections, Roadways, Trails and Interstate Highways
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Crosswalks and Pavement Markings
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Utility, Traffic Lights and Poles
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Work Zones
PARKING FACILITIES
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Parking Lots & Garages
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Guards, Railings & Walls
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Pedestrian Safety & ADA Compliance
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Property Maintenance, Structures & Decks
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Lighting
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Ice, Storm Water & Drainage
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Ramp, Walkway & Stairway Compliance
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Pavement Markings & Signage
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Wheel Stops & Speed Bumps
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Slips, Trips & Falls
PREMISES LIABILITY
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Slip-Trip-Fall Evaluations
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Buildings and Parking Lots
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Sidewalks, Stairways and Walkway Surfaces
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Flooring
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Lighting
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Door and Door Systems
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Window Guarding
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Storm Drainage, Flooding, Snow Removal and Ice
PROFESSIONAL LIABILITY
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Civil and Structural Engineering Claims
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Construction Claims, Change Order Claims and Contract Disputes
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Construction Management and Administration
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Construction Safety and Accidents
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Design and Delay Claims
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Highways, Parking Lots, Sites and Buildings
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Building Distress and Failures
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Building Code, OSHA & ADA Compliance
SLIP, TRIP & FALL EVALUATIONS
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Floor Mats
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Flooring Materials
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Mats & Thresholds
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Dry, Wet, Contaminated & Icy Surfaces
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Sidewalks, Walkways, Pavements & Curbs
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Floors, Stairways & Ramps
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Walking-Working Surfaces
DRAINAGE, FLOODING & ICE CLAIMS
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Property Claims
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Erosion & Scour
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Detention/Retention Basins
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Highways & Land Developments
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Roof Drainage & Downspouts
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Inlets, Catch Basins & Storm Sewers
WINTER/WEATHER RELATED CLAIMS
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Slips and Falls on Ice
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Drainage, Flooding & Ice Accumulation
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Freeze/Thaw related incidents
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Weather Related Highway Crashes