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HEC-HMS model for the Rivanna River Watershed

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Created: Nov 17, 2017 at 9:54 p.m.
Last updated: Nov 17, 2017 at 10:04 p.m.
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Content types: Model Instance Content 
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This is and HEC-HMS model for direct runoff in a watershed in the Rivanna River basin created for a graduate course in Hydrology at the University of Virginia. This watershed was delineated in ArcGIS using the USGS discharge gage 01665500 as the pour point. Runoff was modeled using the SCS curve number method. CN was estimated using land use data in ArcGIS. Transform method used was the SCS unit hydrograph. The basin was subdivided into three subbasins which were routed using the Muskingum routing method. Parameters for the Mukingum method were determined using ArcGIS. The model was calibrated to a storm occurring on 29 December 2013 and verified using a second storm occurring on 25 January 2003. The Nash-Sutcliffe goodness of fit value for the verification storm was determined to be 0.825.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
East Longitude
South Latitude
West Longitude


Additional Metadata

Name Value
MIGRATED_FROM Model Instance Resource

How to Cite

Perdue, B. (2017). HEC-HMS model for the Rivanna River Watershed, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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