Hydraulics and hydrology are our core.
From 1D and 2D hydraulic models to distributed watershed simulations, we use the right tool for bridge sizing, floodplain impacts, scour, drainage investigations, and stormwater planning.
Civil Engineering • Hydraulics • Hydrology
Engineering Alabama’s water and infrastructure challenges.
Hydro-Engineering Solutions is a general civil engineering firm with deep specialization in hydraulics, hydrology, stormwater management, flood studies, bridge and culvert sizing, MS4 support, and watershed modeling.
1999Hydro-Engineering Solutions founded
CurrentlyHydro-Engineering Solutions is a Division of Hydro, LLC with the same core engineering team in operation for over 25-years.
ExperienceOur licensed engineers and hydrologists combine for over 220 years of engineering experience.
What we do
Practical civil engineering backed by advanced water modeling.
Hydro blends field experience, calibrated models, regulatory knowledge, and buildable design. We help the state, counties, municipalities, developers, and transportation clients make sound decisions before water becomes a problem.
Transportation drainageBridge hydraulics, culverts, scour, overtopping analysis, roadway drainage, and stormwater management.
Watershed-scale decisionsGSSHA modeling, stormwater management, land-use change scenarios, live gauge data, and calibrated hydrologic tools for counties and cities.
Stormwater and MS4Stormwater fees, SWMP plans, annual reporting, NPDES permit support, outfall mapping, sampling, ordinances, audits, post-construction stormwater management, and practical BMP implementation.
Site civil designRoads, grading, storm drain systems, detention, utilities coordination, erosion control, permitting, and construction-ready plans.
Software and technologySoftware and hardware design and development that supports field data, monitoring, modeling, and decision-ready engineering work.
Services
Focused expertise for complex water and site challenges.
Hydro is a broad civil engineering resource with unusually deep water resources, software, and hardware experience.
Hydraulics & hydrology
Technical studies for streams, rivers, bridges, culverts, floodplains, detention, and stormwater systems.
- HEC-RAS, FESWMS, SRH-2D, GSSHA, AGWA, SWMM, HydroCAD
- Discharges, water surface elevations, velocities, and shear stresses
- Scour and erosion evaluations
Bridge & culvert sizing
Hydraulic design and evaluation for transportation crossings throughout Alabama. Hydro has sized bridges in every county in Alabama for the Alabama Department of Transportation.
- Bridge hydraulic inspection support
- Relief bridges and floodplain openings
- Scour evaluations, overtopping, and countermeasure analysis
Flood studies & FEMA support
Floodplain analyses and documentation for public and private projects.
- No-Rise certifications
- CLOMR and LOMR submittals
- Flood recurrence and forensic studies
Stormwater management
Planning, modeling, and design for runoff, storage, drainage, and water quality.
- Detention and regional storage evaluation
- Watershed planning and BMP analysis
- Urbanization and land-use change impacts
MS4 & NPDES compliance
Support for county and municipal separate storm sewer system programs across Alabama.
- MS4 program development, implementation, and evaluation
- SWMP plans and annual reports
- EPA and ADEM audit support
- Outfall mapping, screening, and sampling
- Post-construction stormwater management
- Stormwater management policy and ordinance development
- Stormwater fee development
Watershed modeling
Physics-based hydrologic models calibrated to rainfall, stream gauges, land use, and field observations.
- GSSHA and AGWA workflows
- 2-, 25-, and 100-year scenarios
- Live monitoring and rating curves
Hydrographic survey
Bathymetry and field data collection for rivers, bays, lakes, bridge corridors, and shallow-water environments.
- Single-beam and multibeam sonar
- Side scan and green laser LiDAR coordination
- Survey-grade GPS and echo sounder data
Site civil design
Design support for private and public infrastructure.
- Site grading
- Roadway and utility infrastructure
- Erosion and sediment control
Software & technology
Software and hardware design and development for field data, water resources, and practical engineering workflows.
- Custom tools and field workflows
- Monitoring data and model support
- Hydrographic and hydrologic technology integration
Alabama experience from Gulf Coast watersheds to statewide bridge programs.
Hydro has supported the state, counties, cities, developers, and watershed programs with field work, modeling, design, compliance, and decision-ready reports.
Bridge hydraulics
Floodplain analysis
Watershed models
MS4 compliance
Hydrographic survey
Site civil design
Selected experience
Representative projects and programs.
Transportation H&H
Statewide bridge hydraulics
Hydraulic site inspections and support for over a thousand bridge and bridge culvert sites across Alabama for ALDOT, counties, and cities, including scour and overtopping evaluations. Hydro has sized bridges in every county in Alabama for the Alabama Department of Transportation.
Watershed modeling and stream restoration
D’Olive Watershed
GSSHA watershed modeling, calibration, monitoring data, and 2D model use to reduce risk on stream restoration design and to make stormwater decisions.
Hydrographic survey
Mobile River Bridge corridor
Hydrographic survey planning and field data collection using multiple technologies for challenging shallow water, deep water, vegetation, access, and schedule constraints.
Drainage studies
I-65 / US 278 drainage study
Hydrologic and hydraulic analysis of flooding contributors, land-use change, culvert blockage scenarios, and potential cross-drain improvements.
Bridge hydraulics
Pea River at Elba
Two-dimensional hydraulic modeling for the US 84 bridge area, including main channel and overbank flow evaluation, finite element mesh development, and pre- and post-condition comparisons.
Spillway hydraulics
Hallawakee Creek tributary
Superelevated pond spillway modeling, including supercritical flow, water surface profiles, velocity profiles, and hydraulic-jump evaluation.
Shoreline protection
Rockhouse Creek / Smith Lake
Hydraulic and shoreline analysis to evaluate beach-area erosion, wave action, grading alternatives, and protection concepts intended to reduce maintenance and stabilize the shoreline.
Watershed program
MBNEP Mobile & Baldwin watersheds
Calibrated GSSHA models, telemetered weather stations, stream gauges, and model applications for land-planning, BMP evaluation, and restoration support. Example watersheds include Dog River, Fowl River, Bayou La Batre, Fish River, Bon Secour, and Wolf Bay.
Watershed program
Jefferson County watersheds
Calibrated GSSHA models, telemetered weather stations, stream gauges, and model applications for stormwater management, land-planning, and event classification. Over fifty watersheds.
Hydrologic modeling
Northern Beltline watershed modeling
Hydrologic modeling support for roadway planning, including discharge point evaluations, existing and proposed land-use grids, and watershed-scale stormwater impact review.
Site design
Greystone Point Apartments Site Design
Developed civil site design plans for a large commercial apartment complex in Auburn, Alabama.
MS4 support
County and municipal stormwater programs
MS4 program development, stormwater policy and ordinance development, stormwater fees, SWMP program plans, permit negotiations, audit support, annual reporting, facility assessments, outfall mapping, stormwater monitoring, post-construction stormwater management, and illicit discharge investigations.
About Hydro
General civil engineering with specialized water resources depth.
Hydro, LLC is a general civil engineering firm with specialized engineering expertise in Hydraulics and Hydrology. It is located in Auburn, Alabama.
The company originally named Hydro-Engineering Solutions, LLC was established in June of 1999 and was acquired by Trimble Navigation Limited in August of 2013 along with RainWave, LLC, a company spun off of Hydro-Engineering Solutions, LLC. In September of 2016 it was acquired back from Trimble and acted as a dealer for Trimble’s Water Division until that division sold to Badger Meter. Hydro continues its relationships with Badger Meter and other software and hardware companies providing access to state-of-the-art technologies. Hydro brings high end engineering solutions using cutting edge technologies to federal, state, local governments, and private entities.
Clients
Selected public-sector clients.
Hydro has supported transportation agencies, counties, municipalities, watershed programs, and public works organizations across Alabama.
Bridge hydraulics experience: Hydro has sized bridges in every county in Alabama for the Alabama Department of Transportation.
Start here
Have a drainage, flood, bridge, watershed, MS4, or site civil challenge?
Tell us what you are trying to solve. Hydro can help scope the study, identify data needs, model alternatives, and deliver practical engineering recommendations.