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Applications

RiverFLO-2D has been applied to river projects to present high resolution hydraulics. It is distinguished by the ease at which the user can create and complete complex river models. The following example appli-cations illustrate the model detail and diversity.

Hoh River, Washington, USA.

RiverFLO-2D was applied to analyze engineered log jam (ELJ) designs along a reach of the Hoh River to protect U.S. Highway 101 in the state of Washington, USA. The model was first calibrated using field data and the previous results of the HEC-RAS model. It was then applied to evaluate ELJ designs to protect the highway embankment and minimize the environmental impact.
Bed erosion and deposition areas on the Hoh River for a 100-yr event hydrograph.

White River, WA, USA.

RiverFLO-2D was used to address chronic flooding and bank erosion along the White River/State Route 410 corridor for the Washington State Department of Transportation. The project involved geomorphic assess-ment of the upper White River to assess highway erosion and flood hazard in a river reach within the Mount Baker-Snoqualmie National Forest and Mount Rainier National Park. Emergency actions have been necessary in recent years to protect the road and other property where the White River has caused bank erosion and flooding. Nine critical problem sites were identified along the 24-mile reach, where failure of the road embankment from erosion was deemed imminent. RiverFLO-2D provided the detailed hydrodynamics to assess bank protection designs for one reach of the White River.
Velocity field showing detail representation of culvert under road for a restoration project in the White River, Washington USA.

Loxahatchee National Wildlife Refuge, Everglades, Florida, USA

RiverFLO-2D model was applied in portion of the Loxahatchee National Wildlife Refuge located in the Florida Everglades. The model considered the dense vegetation cover with spatially variable roughness. Peripheral canals were modeled by refining the mesh along the boundary. The model computed water elevations and velocity based on rainfall, evaporation, inflow and outflow hydrographs. Outflow from the model was simulated through hydraulic structures managed by the South Florida Water Management District. Water surface elevation changes over a period of several months were compared with Interferometric Synthetic Aperture Radar (InSAR) observations.
RiverFLO-2D results of water surface elevation changes at Loxahatchee National Wildlife Refuge, Everglades Florida.

Apure River, Venezuela

Apure River is located in southwest Venezuela and it is one of the biggest tributaries of the Orinoco River. Discharge varies annually between 100 m3/s and 1,500 m3/s approximately (3,500 cfs and 53,000 cfs). Every year, during the driest five months, the shallow depths do not allow navigation. RiverFLO-2D was applied to evaluate spur dikes and other potential mitigation measures that would increase flow depth and help prolong the shipping season in 30 critical reaches. On each site, velocities, water surface elevations and river bed response were predicted for durations ranging from 1 to 5 years. RiverFLO-2D predicted that the proposed river mitigation design increased channel depth during the dry season and extended the navigability of the river from 7 to 10 months a year.
Velocities on a reach of Apure River with proposed spur dikes designed to concentrate flow and increase erosion along the navigation channel.

Paraguay River, Paraguay

The goal of this project was to design and evaluate protection for the Asuncion City coastline along the Paraguay River. The project required application of the RiverFLO-2D model to simulate hydrodynamics, sediment transport and mobile bed response in the Bay of Asuncion on the Paraguay River. The model tested coast line modifications and their potential impact on the velocities and sedimentation patterns in the Paraguay River reach.
Velocity field around proposed coastal line modification along Asuncion City coastal area for 100-yr event discharge of 11,300 m3/s (398,700 cfs).