We can keep talking and reading about the technology but nothing beats
having the gears and trying them out firsthand. Having Infrasense’s
expertise on our side makes our climbing the learning curve a breeze…
—Loy Kuo, Engineer,
Hawaii DOT, Honolulu
Infrasense provided us with the ‘proof of concept’ to nondestructively
measure pavement thickness to within 0.1 inch. The Department is looking
at implementing these technologies into our project acceptance criteria.
—T. Joe Holland, Project Manager,
California Department of Transportation
Combining Infrasense’s GPR expertise with our equipment was a win-win
situation. The Mn/DOT reaped the benefits of Infrasense’s experience with
GPR, and Infrasense was able to mobilize quickly to a remote location by
taking advantage of our equipment.
—Mark Loken, P.E., Ph.D.,
Minnesota Department of Transportation
As a result of the seminar, many of the participants now see GPR as a viable
option for evaluating bridge deck conditions. They also understand that
GPR may have a place for the purposes of quality control of pavements.
—Sandra Dumas, Transportation Senior Engineer,
Bridge Safety and Evaluation, ConnDOT
Seismic and GPR technologies should be used in combination to improve on
the reliability of identifying layer with moisture damage, stripping, or
other anomalies beneath the pavement surface.
—Mike Hammons
Applied Research Associates
With the high volume of traffic on the bridges, IR and GPR were selected to
survey the bridge decks for anomalies because they could be performed
with minimal disruption to traffic. (…) The results of these bridge deck
surveys will be used along with visual inspections and decks cores to
develop plans to rehabilitate or replace the existing decks.
—Mark Horschel, Project Manager,
Bergmann Associates, Inc.
There is a tremendous volume of traffic on the Tappan Zee Bridge. By using
GPR and scheduling work around the morning and evening rush hours,
traffic was able to continue with minimal disruption.
—Andy Hall, Project Engineer, ARUP
GPR assisted greatly in identifying the various pavement structures. Data
Analysis was improved due to the comprehensive results provided by GPR.
—Tim Martin, Project Engineer,
Fugro Consultants LP
Ground Penetrating Radar was chosen because of its ease, speed and lack
of traffic interference.
—Bob Talbot, Project Engineer,
Parsons Brinkerhoff
…less expensive and time consuming than traditional coring as well as its
obvious benefits to traffic control…
—Robert Smith, Research & Materials Engineer,
Idaho Transportation Department
After extensive research we found that GPR provides the accuracy
necessary for our purposes, and allows us to forecast network wide
conditions in the future.
—Bruce Dietrich, State Pavement Design Engineer,
Florida Transportation Department
Once the team becomes more familiar with the technology, it will be a very
important tool in our pavement evaluation process. The equipment is used
to characterize the materials and obtain layer thicknesses in a manner that
is quick, accurate and less labor intensive. The process of obtaining core
samples to determine layer thickness is labor intensive, requires lane
closures and is a possible safety hazard to the field crews and the public.
The use of GPR allows us to obtain data in a way that is safe to our
travelers, Florida DOT personnel, and subsequently requires less human
resources.
—Dr. Jamshid Armaghani
former State Pavement Evaluation Engineer
Florida Transportation Department