Engineers, Surveyors, Planners
The Clayton Engineering Company is a civil engineering and land surveying firm based in Maryland Heights, Missouri that has served clients in the St. Louis region since 1926. With a staff of approximately 35, it provides land surveying, site civil engineering, and development planning to public and private clients across commercial, retail, residential, institutional, and government sectors. Services include boundary and topographic surveys, FEMA map revisions, site civil design, street and road design, stormwater management, zoning assistance, ADA accessibility reviews, and expert witness testimony. Its principal area of operation is Eastern Missouri and Southern Illinois, with professional licenses held in multiple states.
Complete land surveying services from property research and boundary determination through specialized surveys for title, development, and mapping applications.
Site civil design including grading, drainage, utilities, and road design for development projects in both public and private sectors.
Feasibility analysis, concept planning, zoning research, and entitlement support for land development and redevelopment projects.
Assessment of existing facilities for compliance with ADA accessibility standards, including review of parking lots, entrances, pathways, and signage. Clayton Engineering can also provide corrective design measures following an accessibility survey.
Commercial · Retail · Residential · Education · Government · Stormwater & Flood Control · Land Development · Highways & Roads
Rolla, MO · Education
Civil engineering and construction support for the new Missouri S&T Protoplex in Rolla, Missouri, a facility designed for industry-academia collaboration on research into new materials, manufacturing methods, and prototyping.
St. John, MO · Retail
Survey control verification, sewer and utility staking for Metropolitan St. Louis Sewer District compliance, and final sewer as-built drawings for a new Costco Business Center in St. John, Missouri.
Hazelwood, MO · Commercial
Civil engineering and surveying for the 155-acre Aviator Business Park development in Hazelwood, Missouri. Clayton Engineering has provided ongoing services since 2007 across multiple building lots, including work on completed buildings on Lots 2, 5, and 6.
Webster Groves, MO · Education · Client: Webster Groves School District
Civil design for a new athletic complex replacing the aging Moss Field facility on S. Elm Avenue in Webster Groves, Missouri, funded through a district bond issue.