Infrasense has performed pavement structure evaluations for the Minnesota Department of Transportation (MnDOT). Since 2015, ground penetrating radar (GPR) surveys totaling over 480 lane-miles were performed on roads in both the Metro and Northeast regions. For each project, preliminary GPR results were used to select cores to be used for calibration and confirmation of the…
A construction project near Wichita, Kansas involving the transportation of construction equipment and personnel between the state highway and a work site 3 miles down a two lane country road required a “baseline conditions” record to be produced. Infrasense was tasked with collecting high resolution video to both record and quantify the current road conditions,…
Infrasense, Inc. recently completed a subsurface pavement structure investigation of the Cleveland Memorial Shoreway using high-speed ground penetrating radar (GPR). The initial phase of the GPR evaluation included an analysis of the data to define the limits of the different structural “sections” of pavement throughout the length of both the outer eastbound and westbound shoulders.…
Infrasense has conducted Ground Penetrating Radar (GPR) surveys on 103 bridge decks (over 800,000 square feet of bridge deck) in Ohio’s District 1 using a dual 1-GHz horn antenna GPR system. The work has been carried out under 2 contracts, the first completed in 2008 and a second currently ongoing. All surveys have been carried…
In 2012, Infrasense, Inc. completed a subsurface pavement thickness survey of 290 lane miles of the Parks Highway between Anchorage and Fairbanks, Alaska using ground penetrating radar (GPR). The thickness investigation employed the use of two different frequency antennas, designed to achieve the optimum tradeoff between resolution and depth of penetration. The objective of the…
Infrasense has performed a variety of different pavement projects across the state of Virginia, including statewide and citywide network-level evaluations and localized project-level evaluations for rehabilitation design
Infrasense worked with the Upper Great Plains Transportation Institute and Dynatest Consulting to complete a NDT subsurface pavement structure investigation as part of a legislature-commissioned study to determine the investment needs for all county and township roads and bridges in North Dakota. The pavement investigation project included GPR pavement thickness and structure data collection and…
Infrasense performed high speed scanning on major highway bridges throughout Connecticut, including the Arrigoni Bridge in Middletown, the Sisson Avenue interchange on I-84 in West Hartford, and the complex “Waterbury Stacks” on I-84 in Waterbury. Combined, these projects represent over 1-million square feet of bridge deck. Infrasense collected ground penetrating radar (GPR) data on these…
In 2015, Infrasense carried out a pavement evaluation program for a ~2.8 mile section of Route 2 in East Hartford, Connecticut using a combination of ground penetrating radar (GPR), falling weight deflectometer (FWD), and selective coring. The objectives of this program were as follows: Confirm limits of full-depth asphalt and the composite sections of pavement…
Infrasense teamed with RS&H to complete a multi-phase project in the Jacksonville area to evaluate the condition of 14 bridge decks. The first phase of the deck condition evaluations was carried out using infrared thermography (IR), ground penetrating radar (GPR), and high resolution video imaging. A second phase, consisting of impact echo (IE) and hammer…