Projects / Groundwater Assessments
Groundwater Assessments · 2017-2018
C-43 Reservoir: MODFLOW Modeling
LAGO provided seepage modeling support to the geotechnical studies conducted for the C-43 Reservoir design. LAGO developed seven (7) local MODFLOW models at different locations along the reservoir berm. The resulting steady-state heads from the 3-dimensional groundwater model were provided to the geotechnical experts at Terracon to evaluate slope stability of the canals, uplift pressures beneath structures, etc.
- CLIENT
- SFWMD(sub-consultant to Carollo Engineering)
- YEAR
- 2017-2018
- APPLIED SKILLS
- Groundwater Modeling: Data mining & processing; conceptualization & setup
- CONSULTING AREAS
- Groundwater management
- SOFTWARE
- MODFLOW (GWV), ArcMap, and LAGO Toolbox.
Specifics
- Grid cell size = 10 ft
- Layer Thickness = 2 to 10 ft, from top to bottom
- Geological Model: top and bottom elevation map from kriging interpolation of boring well data
- Lateral boundary conditions from heads extracted from regional MIKE SHE model
- Bentonite wall in berm, relief trenches, and sheet piling were considered
- Software script developed to process the data into GWV input files
- MODFLOW heads are extracted at specific points of interest by using proprietary software tools.
Outcome
The results of the 3D groundwater modeling effort were used as input of the geotechnical analysis of the features at the C-43 Reservoir.
Figures
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