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Optimizing Upstream Propagation of MFLs: Reach-Based Approach for Suwannee River

Establish district-wide MFLs for key water bodies within 5 years using best available data, focusing on Suwannee River and springs. Evaluate adequacy of Upstream MFL Yield Calculations for Lower Suwannee River and address issues with FDC testing. Collaborate with experts for improved reach characterization and address branching, GW, springs, and biological data gaps.

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Optimizing Upstream Propagation of MFLs: Reach-Based Approach for Suwannee River

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  1. Upstream Propagation of MFLs Using A Reach-Based Methodology John Good & Rob Mattson

  2. Lower Suwannee River MFL

  3. Charge to District Staff • Establish MFLs District-wide for priority water bodies • ± 5 year time-frame • Best available data • Focus initially on the Suwannee River • Including springs

  4. U D Reach Schematic: Single Reach

  5. FDCs Up- & Downstream

  6. Water Availability

  7. Ratio Process

  8. “Initial” Upstream MFL

  9. U D Reach Schematic: Single Reach ?

  10. Adequacy of Upstream MFL

  11. Reach Yield Calculations

  12. Lower Suwannee River MFL

  13. The Issue • Loss of time-sequence by use of FDC • Testing underway using HEC-RAS dynamic model to examine routing/channel storage/pickup effects • Jennifer Jacobs (UNH) • Patrick Tara (Intera, Inc.)

  14. U1 U2 D Stream Reach Schematic: Branching Stream

  15. U D Reach Application to Springs R • Eg.: • Mad Blue • Troy • Ichtucknee • Fan/Man Ri R • Sam Upchurch (SDII, Inc.)

  16. More Issues • Further development of how to characterize reach MFL • GW and springs • Branching • Santa Fe land bridge • Existing biological information

  17. Questions?

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