Matt Manges, PE, CFM, ENV SP

Vice President, Stormwater Business Group Director

LAN LinkedIn


Master of Civil Engineering, Water Resources, Texas A&M University

Bachelor of Science, Civil Engineering, Texas A&M University


Mr. Manges is the Business Group Director of LAN’s Stormwater Management team specializing in hydraulic and hydrologic analysis and drainage design. He oversees and manages engineering services companywide for stormwater modeling, watershed studies, drainage master plans, preliminary engineering reports, storm sewer design, riverine improvements, water quality analyses and erosion control. He pioneered the usage of two-dimensional stormwater modeling in the Houston region and has presented numerous topics at the Texas Floodplain Management Association and the Association of State Floodplain Management conferences.

Notable projects include the 53-square-mile Little Cypress Creek Watershed Study for the Harris County Flood Control District, a master drainage plan for the City of Beaumont encompassing 100+ square miles, the automated Watershed Planning Tool, and a three-watershed regional drainage study, which was awarded a silver medal by the Texas Council of Engineering Companies (TCEC).

Certifications / Licenses

Professional Engineer – Civil, Texas

Professional Engineer, Florida

Certified Floodplain Manager (CFM)

Envision Sustainability Professional (ENV SP)


Texas Floodplain Management Association (TFMA)