Payden Johnson, P.E.

Senior Project Engineer

Biography

Payden Johnson has been dedicated to his career as a forensic engineer for over seven years, investigating domestic and international properties to provide insight regarding manmade and natural failures, defects, and disasters. His expertise has been trusted for evaluating major catastrophe events, historic building losses, high-rise defects, golf courses, and numerous other complex assessments across the commercial, multi­residential, and industrial building sectors.

Payden has provided reporting for cause and origin determination, extent of damage, repair or retrofit analyzation, building system performance assessments, and additional technical evaluations as part of insurance claims, litigation, and real estate enterprise.

P.E.

AL, AZ, AR, CO, FL, GA, IN, KS, KY, LA, MS, MO, MT, NV, NM, NC, OK, SC, SD, TX, UT, VA, WV, WI

Credentials

Remote Pilot, Small Unmanned Aerial System

Affiliations

NCEES, ASCE, ACI, AISC

Featured Experience

Wind and Hail Evaluations, Commercial Structures, Multiple Locations, USA. Structural investigation to determine the extent of wind and / or hail damage to commercial roofing (e.g., metal panel, TPO, PVC, EPDM)
at several structures throughout the US. The scope often included non-destructive extraction of samples and laboratory testing to aid in
determine the cause and extent of damage.

Wind and Hail Evaluations, Single and Multi-Unit Residential Structures, Multiple locations, USA. Structural investigation to determine the extent of wind and/or hail damage to asphalt shingle, metal, clay tile, concrete tile, cedar shake and slate roofing and various finish and cladding systems at hundreds of single-family and multi-unit residential structures. The evaluations included detailed observation and documentation, interviews with owners, testing shingle adhesion, evaluation of hail impact sites, reviewing available weather information and reviewing aerial imagery.

Evaluations for Various Hurricanes, Multiple Locations, USA and Caribbean. Investigation of various types of commercial structures, residential structures, ports, and terminals, to determine the extent of
damage caused by wind, water infiltration, storm surge, and flooding as a result of Hurricanes in the affected areas. The project scope often included delineation between causes, scope of damage, and appropriate scope of repair.

Cause and Origin of Water Infiltration, Multiple Locations, USA.
Evaluation of distress caused by water infiltration and determination of the cause. Moisture testing and/or intrusive investigation was utilized in many instances.

Earthquake Evaluations, Mexico and New Zealand.
Evaluated the extent of damage and existing structural systems of historic structures and commercial structures damaged by earthquakes.

Earthquake Evaluations, Lincoln University, Lincoln, New Zealand.
Evaluated the extent of earthquake-related damage to concrete and masonry structures. Coordinated and performed material extraction and testing of concrete cores.

Allen Independent School District, Eagle Stadium Investigation, Allen, TX.
Structural investigation of an existing 18,000-seat stadium for alleged design and construction defects. The project included the investigation of a multistory press box, retaining wall systems, multiple concession buildings, skip joist concrete framing and scoreboard. South Orange County Community College District Building Envelope Consulting: Irvine Valley College Fine Arts Buildings.

3225 Turtle Creek Boulevard, Parking Garage Collapse Investigation, Dallas, TX.
Determined cause and origin of a partial collapse of a seven-story precast concrete garage.

Toyota Roof Collapse Investigation, San Antonio, TX.
Determined cause and origin of a partial collapse of a manufacturing warehouse.

1901 Diplomat Stonelake Roof Collapse Investigation, Dallas, TX.
Determined cause and origin of a partial collapse of a warehouse building.

ClubCorp Golf Courses, Texas and North Carolina.
Assessment of golf courses in Houston and Dallas due food related damages. Component assessed include bridges, retaining walls of varying construction, embankments, buildings and hydraulic structures such as concrete dams.

Parking Garages, Multiple Locations.
Determined the cause and origin of failures of post-tensioning at a parking garage as part of litigation services. Performed condition assessments and evaluation of the design and construction of garage structures for the purposes of real estate enterprise.

Vehicle Impacts, Multiple Locations.
Evaluated the extent of damage resulting from vehicle impacts to residential and commercial property.

Fire Evaluations, Multiple Locations.
Evaluated the extent of damage resulting from fire at residential and commercial property.

Explosions, Multiple Locations.
Evaluated the extent of damage resulting from explosions at commercial and residential properties.