Drainage Area Limitations of Single Watershed Peak Flow Estimates with NRCS Methods
Publication: World Environmental and Water Resources Congress 2024
ABSTRACT
NRCS (SCS) methods to predict runoff volume and peak discharge from rainfall have been in use for 70 years. Despite their universal application for highway drainage infrastructure, there is no clearly identified limitation on drainage area size for single, homogeneous watersheds. We compare flow frequency from more than 100 small watershed stream gages in Nebraska to estimate using TR-20 and TR-55. We also compare results from regression equations to the gage estimates. Work continues to determine if there is a statistically significant watershed area size that favors use of NRCS methods over regression equations.
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Information & Authors
Information
Published In
World Environmental and Water Resources Congress 2024
Pages: 673 - 683
History
Published online: May 16, 2024
ASCE Technical Topics:
- Analysis (by type)
- Drainage
- Engineering fundamentals
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Hydrologic engineering
- Hydrology
- Irrigation engineering
- Peak flow
- Regression analysis
- River engineering
- River systems
- Runoff
- Statistical analysis (by type)
- Water and water resources
- Water discharge
- Water flow
- Watersheds
Authors
Metrics & Citations
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