Abstract
SR 26 at CR 200E in Blackford County was constructed over a 40-ft deep peat bog. Continual settlement had been a challenge, leading to substandard vertical curves and drainage issues. Geotechnical analysis and hydraulic modeling in conjunction with county input and cooperation resulted in a unique culvert mat foundation requiring little profile grade-raise on SR 26. The design decisions resulted in project delivery of less than half of INDOT’s budget and a significantly reduced life-cycle cost.
Session Number
16
Session Title
Value-Added Geotechnical Solutions at a Peat Bog
Track Title
Design/Construction
Location
STEW 306
Date of Version
March 2023
Recommended Citation
Wigger, Mike; Hetrick, Kevin; and Woolridge, Joann, "Value-Added Geotechnical Solutions at a Peat Bog" (2023). Purdue Road School. 6.
https://docs.lib.purdue.edu/roadschool/2023/presentations/6
Start Date
3-14-2023 2:00 PM
End Date
3-14-2023 2:50 PM
Value-Added Geotechnical Solutions at a Peat Bog
STEW 306
SR 26 at CR 200E in Blackford County was constructed over a 40-ft deep peat bog. Continual settlement had been a challenge, leading to substandard vertical curves and drainage issues. Geotechnical analysis and hydraulic modeling in conjunction with county input and cooperation resulted in a unique culvert mat foundation requiring little profile grade-raise on SR 26. The design decisions resulted in project delivery of less than half of INDOT’s budget and a significantly reduced life-cycle cost.
