Spalding DeDecker (SD) is an engineering and surveying consulting firm specializing in infrastructure, land development, and transportation. With offices in Rochester Hills, Novi, Detroit, Grand Rapids, and Lansing, Michigan, it supports diverse clients across the nation with a broad range of services. Established in 1954, SD has decades of experience in engineering and surveying. Spalding DeDecker’s dedicated teams in Transportation, Municipal Engineering, Land Development, Planning, Surveying, and Construction Engineering create safe, practical, and sustainable solutions for the unique needs of each client. Spalding DeDecker's services include:

INFRASTRUCTURE
Asset Management
Construction Engineering
Municipal Engineering
Pavement Management Systems (PMS)
Transportation Engineering
Water/Wastewater Engineering
GIS Management

LAND DEVELOPMENT
LEED® Project Design for Certification of Green  
Facilities through the US Green Building Council
Site Engineering & Infrastructure Design
Site Planning
Urban Planning
Site Selection & Development Feasibility Studies
Stormwater Management Plans and Studies

SURVEY & MAPPING
3-D Laser Scanning
ALTA / NSPS Land Title Surveys
Aerial Control Surveys
Boundary & Topographical Surveys
Construction Layout
Industrial, Aviation, and Transportation Surveying