stormwater institute research plan by task

Research Plan by Task

The research plan consists of the four tasks specified by MDOT – Literature Review, Evaluate MDOT’s Current Scour Evaluation Procedures, Review Scour Evaluation Methods Utilized by Other States, and Calibrate Level 2 (HEC-18) Scour Prediction Equations for Michigan Specific Conditions.  The next four sub-sections provide details of this investigation, which are summarized in the table below.

 

Summary of task components 

Task

Topics

Literature Review

  • Review and summarize existing USGS, FHWA, and ASCE reports (LTU & WSU)
  • Perform detailed literature review of electronic databases (LTU & WSU)
  • Contact state DOTs to identify non peer reviewed publications (LTU)

Evaluate MDOT’s Current Scour Evaluation Procedures

  • Review, summarize, and critique existing MDOT methodologies for scour evaluation (LTU & WSU)
  • Review and evaluate pre-existing engineering data for bridge scour evaluation (LTU & WSU)
  • Review and evaluate existing databases and database management techniques (LTU & WSU)
  • Project meetings with MDOT engineers and managers (LTU & WSU)

Review Scour Evaluation Methods Utilized by Other States

  • Review, summarize, and critique other state DOT methodologies for scour evaluation (LTU)
  • Contact appropriate departments within each DOT for bridge scour information (LTU)
  • Determine bridge scour information available through public accessible websites (LTU)

Calibrate Level 2 (HEC-18) Scour Prediction Equations for Michigan Specific Conditions

  • Establish a field data collection personnel safety plan to insure safety of project participants when collecting field data.  MDOT safety protocols will be used as a guide (LTU & WSU)
  • Visit scour critical bridges throughout the lower peninsula of Michigan as identified through meetings with MDOT (LTU & WSU)
  • Select 12 scour critical bridges across the lower peninsula for episodic monitoring (LTU & WSU)
  • Select 2 scour critical bridges for continuous monitoring of scour (LTU & WSU)
  • Collect field data and soil samples for all 14 selected scour critical bridges (LTU & WSU)
  • Perform Level 2 Analysis for 14 selected bridges if necessary.  Level 2 Analysis will not be preformed as part of this project if it was recently completed by MDOT (WSU)
  • Perform jet device testing at all 14 selected scour critical bridges to determine in-situ soil erodibility (LTU)
  • Conduct geotechnical laboratory investigation of soil sample to evaluate geotechnical properties of all 14 selected sites (LTU)
  • Conduct HEC-RAS computer simulations for 14 selected sites as necessary (WSU)
  • Conduct a parametric evaluation of HEC-18 Scour Prediction Equations for Michigan specific conditions based on existing and project collected scour data (LTU)
  • Calibrate the Level 2 (HEC-18) Scour Prediction Equations for Michigan specific conditions based on field monitoring of scour, jet device correlations, and parametric evaluation (LTU & WSU)
  • Generate final report (LTU & WSU)
  • Copy, bind, and submit final report (LTU)