Quality Engineering from a Local Practice
Longbranch Civil Engineering, Inc. is a locally owned and operated civil engineering practice located in Rapid City, South Dakota. It offers engineering and surveying services within Rapid City and the surrounding region. Originally founded as Sperlich Consulting, Inc. in 2003, the practice incorporated as Longbranch Civil Engineering in 2019.
Comprehensive design and modeling of essential municipal utility systems, roadways, and master plans designed to accommodate future demands.
Full subdivision planning and engineering for residential, commercial, and industrial projects, delivering complete construction plans from concept to approval.
Advanced drainage and flooding analyses, regulatory compliance, and mitigation design to address local and federal FEMA standards.
Analyzing water generation potential and peak flow rates.
Determining precise flow paths, velocities, and water behavior.
Assisting with the removal of properties or structures from the FEMA floodplain using updated topographic data.
Revising official FEMA maps based on detailed topographic and infrastructure updates.
Civil site planning and infrastructure design for commercial developments, ensuring compliance with local ordinances and optimal property layout.
Comprehensive surveying and property platting services, from initial boundary and easement research to active construction staking.
Providing necessary maps and coordination to subdivide parcels or adjust property lines.
Commercial · Residential · Industrial · Government · Infrastructure · Water Resources · Stormwater & Flood Control · Land Development · Wastewater · Water Supply
Rapid City, SD · Residential
Full subdivision design for the Auburn Hills residential development, encompassing topographic survey work, engineering design of roads and critical infrastructure, and complete platting services.
Rapid City, SD · Residential
Comprehensive subdivision design including civil infrastructure layout, roadway design, topographic surveying, and platting services.
Rapid City, SD · Residential
Engineering design of infrastructure and roads, topographic surveying, and complete platting services for the Prairie Meadows community.
Rapid City, SD · Residential
Infrastructure design, topographic surveying, road design, and platting services for the residential subdivision development.