Lyman Henn, Inc. - Engineering Solutions from the Ground Down  
 

Soft Ground Tunneling Projects
 

SR-66 (DIAMOND AVENUE) STORM SEWER TUNNEL

Evansville, IN

Project Highlights:

  • 1 mile long, 96 in. inside diameter gravity storm sewer.
  • Provided design reviews and oversight.
  • Provided complete design services and claims assistance.
  • Project deliverables included Geotechnical Baseline Report, Geotechnical Interpretive Report, and plans and specifications.

 

 

Project Details


TRILBY ROAD/FOSSIL CREEK FLOOD CONTROL PROJECT

Fort Collins, CO

Project Highlights:

  • Two 10-ft-diameter tunnels.
  • Provided geotechnical and tunnel design.
  • Project deliverables included geotechnical and tunnel design reports, technical specifications, and tunnel detail drawings.

Project Details

 


WEINBACH AVENUE STORM SEWER

Evansville, IN

Project Highlights:

  • 8,800-ft-long, 96-in. inside diameter concrete pipe gravity storm sewer.
  • Provided complete tunnel design and construction services.
  • Earth Pressure Balance tunnel boring machine was used to excavate the tunnel.

Project Details

 

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