Mark Locher, Respected St. Louis Engineer and Community Advocate, Dies Unexpectedly at 39
St. Louis, Missouri — July 2025
The St. Louis community is mourning the unexpected passing of Mark Locher, a respected professional engineer, dedicated husband, and valued friend, who died suddenly in July 2025 at the age of 39. His death has sent shockwaves through Wildwood, Missouri, where he lived, and throughout the broader engineering and civic communities of the region.
Locher was known not only for his technical expertise as a project engineer at POWER Engineers but also for his deep commitment to ethical work, mentorship, and quiet leadership. Colleagues described him as calm under pressure, exacting in detail, and generous with his time—especially when helping younger engineers find their footing.
Born and raised in Missouri, Mark graduated from St. Francis Borgia Regional High School and went on to earn a degree in engineering from Missouri University of Science and Technology, one of the top technical institutions in the state. He later earned his Professional Engineer (P.E.) certification, advancing to lead infrastructure projects across Missouri and neighboring states.
He married Karrie Dutton in 2015, and together they built a life grounded in shared values, mutual support, and a love of community. In Wildwood, where they settled, Mark was a familiar face—helping neighbors with repairs, participating in local STEM outreach, and volunteering for trail restoration efforts on weekends.
The cause of death has not been publicly confirmed, and the suddenness of his passing has left many grappling with disbelief. Tributes have continued to pour in from across Missouri, with friends remembering him as humble, steady, and principled—a person whose character spoke louder than any accolades.
A memorial service will be held later this month in St. Louis, with exact arrangements to be announced by the family. In lieu of flowers, the Lochers have requested donations be made to STEM education programs in underserved Missouri communities, reflecting Mark’s commitment to accessible learning and technical literacy.
Mark Locher’s death is not only a personal loss to those who knew him, but also a civic loss for St. Louis—a city he served not with fanfare, but with consistent, meaningful contribution. His absence will be deeply felt, but his influence endures in the structures he helped build, the professionals he mentored, and the neighbors whose lives he quietly improved.