Presenter Information

Michael M. GavelekFollow

Session Number

82

Session Title

Ohio River Bridges: Partial Cane Run Watershed Relocation Case Study

Track Title

Drainage

Event Description/Abstract

The Ohio River Bridges design-build project, at just under $2 billion, is one the nation’s largest transportation projects. The project consists of six sections. Section 3, the Indiana approach to the downtown crossing, consists of 21 bridges, 25 ramps, 1.3 miles of I-65 widening, & US-31 reconfiguration in a dense, urban setting. Section 3 is located in a complicated hydraulic scenario involving a flood wall and an urban stream, Cane Run, with a history of flooding problems. It became evident that continuing the design direction of the previous preliminary & bid design to final design would compound the already vexed Cane Run which is the main discharge point for the 100 Ac I-65 corridor. Therefore, CHA, Inc. utilized a separated, formerly CSO, large sewer with available capacity and flood wall pump capacity where the local authorities preferred to relocate a portion of the Cane Run watershed.This was an 11th hour change that resulted in reducing the owner and design build team's risk exposure.

Attendees will learn the following from this 50 minute presentation:

  • The basics of the Ohio River Bridges project
  • Understand the complex hydraulic scenario of Section 3 – the Cane Run watershed
  • Follow the design decisions which led to a watershed relocation
  • See an example & benefits of hydrodynamic wave routing & volume calculations
  • See an example of why it pays to consider design criteria which are beyond the “scope” of a contract
  • Understand basic legal aspects of drainage design & mitigate risk exposure

Share

COinS
 
Mar 12th, 12:00 AM

Ohio River Bridges: Partial Cane Run Watershed Relocation Case Study

The Ohio River Bridges design-build project, at just under $2 billion, is one the nation’s largest transportation projects. The project consists of six sections. Section 3, the Indiana approach to the downtown crossing, consists of 21 bridges, 25 ramps, 1.3 miles of I-65 widening, & US-31 reconfiguration in a dense, urban setting. Section 3 is located in a complicated hydraulic scenario involving a flood wall and an urban stream, Cane Run, with a history of flooding problems. It became evident that continuing the design direction of the previous preliminary & bid design to final design would compound the already vexed Cane Run which is the main discharge point for the 100 Ac I-65 corridor. Therefore, CHA, Inc. utilized a separated, formerly CSO, large sewer with available capacity and flood wall pump capacity where the local authorities preferred to relocate a portion of the Cane Run watershed.This was an 11th hour change that resulted in reducing the owner and design build team's risk exposure.

Attendees will learn the following from this 50 minute presentation:

  • The basics of the Ohio River Bridges project
  • Understand the complex hydraulic scenario of Section 3 – the Cane Run watershed
  • Follow the design decisions which led to a watershed relocation
  • See an example & benefits of hydrodynamic wave routing & volume calculations
  • See an example of why it pays to consider design criteria which are beyond the “scope” of a contract
  • Understand basic legal aspects of drainage design & mitigate risk exposure