Solutions to the most challenging problems
Stormwater Engineering and Design
We bring decades of experience in stormwater planning, engineering, and design, including naturalized detention basins, channels, storm sewers, and post-construction best management practices.
Hydrologic & Hydraulic Modeling
Our team develops and reviews complex hydrologic and hydraulic models, including HEC-HMS and HEC-RAS (steady, unsteady, and 2D), as well as other current and legacy platforms. From bridge hydraulics to complex stream networks, we deliver reliable, defensible results.
Floodplain Management
We provide technical analysis and prepare Letters of Map Change (LOMA, LOMR-F, CLOMR, and LOMR), along with all supporting documentation and permitting requirements.
Permitting and Regulatory Coordination
Rain Engineering helps clients navigate federal, state, and local permitting processes efficiently. Our longstanding relationships with regulatory agencies—built on professionalism and trust—help streamline approvals and keep projects moving.
We understand regulatory requirements and the nuances of policy implementation, allowing us to clearly advise clients on what is feasible and permittable.
Municipal Utility Engineering
We provide design, coordination, and consulting services for wet utilities, including sewer and water systems. Our experience includes utility coordination, conflict resolution, and developing practical, cost-effective designs. With prior municipal staff experience, we understand how agencies evaluate projects and serve their communities.
Civil/Site/Land Development Engineering
Our capabilities include site development, detention design, emergency overflow routing, and storm sewer systems. We take a practical, creative approach to floodplain challenges—maximizing developable area while maintaining compliance and performance.
Dam Engineering and Permitting
We offer dam inspection, design, modeling (including breach analysis), and permitting services. From routine conditions to extreme events such as probable maximum precipitation, we provide solutions that prioritize safety, resilience, and regulatory compliance.
Consulting, Training, Staff Augmentation, Senior Peer Reviews
We provide consulting and training to support and mentor engineering staff, helping teams build technical capability and confidence.
For organizations with limited capacity, we offer staff augmentation services that integrate seamlessly with your team.
We also perform senior-level peer reviews of complex reports and models, providing clear, actionable feedback and quality assurance.