Multi-Phase Condition Evaluation of a 1.5-Mile Viaduct on I-515 in Las Vegas

The State of Nevada commissioned a deck rehabilitation project of the “Downtown Las Vegas Viaduct”, which spans over 1.5 miles of I-515, beginning just east of the I-15 interchange in Las Vegas, Nevada. In order to facilitate planning and subsequent design efforts, a comprehensive nondestructive evaluation of the deck condition was carried out by Stantec…

GPR Evaluation of 236 Bridge Decks Throughout Montana

Infrasense carried out high-speed GPR condition evaluations on 236 decks throughout the state of Montana. Of the 236 decks surveyed, 165 were selected for a Level 2 analysis, which involved detailed mapping of the concrete deterioration. Additionally, rebar depth contour plots were created which facilitate more accurate deck repair volume calculations. Per the request of…

Utah bridge deck scanning by infrasense

Nondestructive Condition Surveys of 26 Bridge Decks for Utah DOT

Infrasense recently completed bridge deck condition evaluations of 25 bridge decks on or over Interstates 15, 80, and 84 using high-speed ground penetrating radar (GPR), infrared thermography (IR), and high-resolution video (HRV). Of the 25 decks evaluated in this project, 11 were surveyed using GPR, IR, and HRV; the remaining 14 decks were surveyed using…

Roadway Substructure Evaluation in Idaho Transportation Department’s District 4 and District 6

Infrasense developed a roadway structure database to assist the Idaho Transportation Department (ITD) in its future project planning and design efforts and to ultimately advance the condition of the roadway to an acceptable level. The roadway structure database covers approximately 1000 miles of state highways within ITD’s District 6 and was generated primarily with data…

I93 pavement evaluation boston infrasense

Pavement Thickness Evaluation of the I-93 Viaduct North of Boston

Infrasense completed a subsurface pavement structure investigation of both directions of a 1-mile long viaduct on Interstate 93, just north of Boston. This viaduct, adjacent to the Leonard P. Zakim Bridge, leads directly into Boston, so minimal traffic disruption of this corridor is a priority. Infrasense used a high-speed ground penetrating radar (GPR) survey to detect…

GPR fascia mse WI

Pilot Project to Assess Capability of GPR for Detecting Void Space Between Decorative Fascia and MSE Walls

Infrasense completed a Pilot Study to establish a method for measuring the void space between a decorative fascia wall and a mechanically stabilized earthen (MSE) retaining wall using GPR. Ground-coupled GPR antennas were used to test the abutments of multiple bridges in Green Bay, where these MSE retaining walls are used in the design of…

Infrasense Concrete Scanning Portland Maine

Parking Garage Deck Condition Evaluation Using GPR in Portland, ME

Infrasense evaluated the condition of the upper parking deck of the Spring Street Garage in Portland, Maine. The evaluation utilized ground penetrating radar to quantify and map deterioration in the concrete slab, which was inaccessible for sounding due to an asphalt overlay. The GPR deterioration map was found to correlate reasonably well with areas of…