Design of Stormwater BMPs for Surface and Groundwater Protection Based on Site-Scale Soil Properties: Phase II

The objective of this project is to optimize the nitrogen (N) and phosphorus (P) removal potential of stormwater basins by improving the ability to predict the performance of common native soil properties alone, or with a Biosorption Activated Media (BAM) amendment, and using two planting specifications typically utilized in Florida Department of Transportation (FDOT) maintenance. Phase II will build upon the findings of Design of Stormwater BMPs [Best Management Practices] for Surface and Groundwater Protection Based on Site-Scale Soil Properties: Phase I BDV24-977-43 (hereafter referred to as “Phase I”), which demonstrated the superior performance of unamended native soils with moderate soil organic matter and clay contents in the removal and sequestration of N and P during short-term laboratory experiments. Specifically, the research team will leverage this knowledge in a new experiment with improved external validity through the use of outdoor mesocosms in a multi-year study (e.g., scaling-up in both space and time). Commonly encountered native Florida soils will be prepared and planted per FDOT specification in replicated stock tanks (e.g., ~300-500 gal), with or without a BAM blanket filter, and using at least two FDOT approved vegetative strategies. Inflow and outflow hydrology will be controlled to mimic wet and dry basin hydropatterns and real-time mass balance of nutrient transport/transformation. The plant-soil-microbial interactions will be investigated to determine optimal N and P removal rates under varied hydrology. This new empirical data will improve stormwater BMPs by more accurately assessing the potential of native site soils, planting, and amendment strategies to function in nutrient remediation at the project site scale.

Language

• English

Project

• Status: Active
• Funding: $1,489,327.00
• Contract Numbers:

  BED26 977-17

• Sponsor Organizations:

  Florida Department of Transportation

  Research Center
  605 Suwannee Street MS-30
  Tallahassee, FL  United States  32399-0450
• Project Managers:

  Green, Jennifer

• Performing Organizations:

  University of Central Florida, Orlando

  12443 Research Parkway, Suite 207
  Orlando, FL  United States  32826-
• Principal Investigators:

  Chambers, Lisa G

• Start Date: 20250226
• Expected Completion Date: 20290131
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Best practices; Detention basins; Local materials; Nitrogen; Phosphorus; Runoff; Soils
• Identifier Terms: Florida Department of Transportation
• Subject Areas: Data and Information Technology; Environment; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 01947551
• Record Type: Research project
• Source Agency: Florida Department of Transportation
• Contract Numbers: BED26 977-17
• Files: RIP, STATEDOT
• Created Date: Feb 26 2025 3:53PM