Ingios Geotechnics

Project Name: I-265 Ohio River Bridges Project

Project Date: November 2014

Location: Louisville, IN

Partners: Walsh Vinci Construction, Applied Research Associates

Customer Group(s):

  • Pavement Engineering Consultants

  • Earthwork/Grading Contractors

Ingios Engineers Involved: E. Tom Cackler, David White, Pavana Vennapusa


Tech briefs:

Automated Plate Load Test

Pavement Mechanistic-Empirical (ME) Design Verification using APLT Testing

Modulus Verification Mapping Using COMP-Score® RT

Challenge: The Ohio River Bridges project was a massive $2.3B transportation project in the Louisville metro area. The project involved new bridges and connecting highways with numerous grade crossings, 32 lane-miles of roadway and roughly 450,000 SY of concrete pavement. During construction, incomplete QC/QA data needed for acceptance of the pavement foundation construction along a 2-mile stretch of roadway began causing delays to the late fall paving program. Rapid deployment of a solution to verify the pavement foundation properties was needed to keep the project on schedule.

Solution: Ingios® Geotechnics’ engineers immediately launched into a review of pavement designs by working closely with the pavement designers to develop a methodology to translate design requirements to target field-values. The solution involved continuous mapping of the 2-mile stretch of prepared base-material using Ingios’ COMP-Score® RT (CRT) mapping; by retrofitting Contractor’s compactor at the site in less than one day.

An Automated Plate Load Testing (APLT) plan consisting of cyclic plate load tests using 18-inch and 30-inch diameter plates was used to measure in-situ composite resilient modulus values to provide site-specific calibration. Calibration testing demonstrated a regression coefficient R2 > 0.9 for predicting resilient modulus using the CRT mapping results.

Benefits: CRT mapping provided continuous video recording of the results, as well as color-coded spatial mapping to display areas of compliance. Walsh Construction was alerted immediately to areas of non-compliance that did not meet the minimum pavement foundation design values and flagged for rework prior to paving. Results of the monitoring provided the

confidence for the design/build project team to address the localized areas and move forward with paving on the project that required a 2-year warranty and 30-year operation and maintenance requirement.

Industrial Yard Expansion
Industrial Yard Expansion
Lessons Learned from Implementing Advanced Compaction Monitoring at CCR Landfills Storage Facilities
Lessons Learned from Implementing Advanced Compaction Monitoring at CCR Landfills Storage Facilities
Illinois Tollway Central Tri-State Corridor (I-294)
Illinois Tollway Central Tri-State Corridor (I-294)
Elgin O'Hare Western Access Tollway
Elgin O'Hare Western Access Tollway
© 2023 Ingios Geotechnics. All rights reserved.