Bridge Deck Survey in Cleveland, Ohio
Infrasense was in Cleveland, Ohio last week to perform a ground penetrating radar (GPR) survey of a relatively new bridge deck in order to map the concrete cover.
Bridge Deck Testing in North Brookfield, Massachusetts
Our team recently completed testing on a bridge in North Brookfield, MA to provide as-built information including rebar spacing, rebar diameter, and concrete compressive strength in support of a load rating. In order to collect data on the culvert underside, Infrasense engineers used wetsuits and a small raft to keep themselves and the testing equipment dry…
Infrasense Performs in Depth Nondestructive Evaluation of Pavement and Bridges Along I-95 in Southern Connecticut
This past summer, Infrasense surveyed 10 miles of interstate pavement and 23 bridge decks with ground penetrating radar. The objectives of the GPR survey included: Locating the lateral and longitudinal extents of the underlying PCC pavement and full-depth asphalt pavements Providing thicknesses of asphalt and PCC pavement layers Locating and quantifying deterioration in the underlying…
Infrasense Carries Out Nondestructive Infrared Evaluation of Bridge Deck in Wisconsin
This past summer, Infrasense surveyed a bridge deck in La Crosse, Wisconsin using infrared for deck delamination detection according to ASTM D 4788 – 03. The equipment setup involved a dedicated vehicle mounted with a high resolution, distance triggered FLIR infrared camera synced up with a high-resolution visual spectrum camera. Both devices capture a whole…
Infrasense Evaluates Condition of Stone Arch Bridge in Orange, Connecticut With Ground Penetrating Radar
In July of 2018, Infrasense mobilized a two-man team to perform a ground-coupled GPR survey of the road surface on a stone arch bridge in Orange, CT. With the help of a traffic control unit and a local police officer, the condition survey was carried out during overnight hours with minimal disruption to traffic. The…
Infrasense Evaluates the Condition of 5 Missouri Bridge Decks Utilizing Ground Penetrating Radar (GPR) Supplemented with Other Methods
This past summer, Infrasense conducted non-destructive surveys and reported for 5 bridge decks in Missouri. The project provided the client with a comprehensive set of condition results to facilitate a data-driven approach to programming rehab and maintenance efforts. As a supplement to the GPR surveys, chain drag, coring, and infrared thermography were used on select bridge…
Infrasense Pilots Aerial Surveys with Infrared Thermography and High Resolution Visual Methods to Evaluate Bridge Decks
Infrasense recently completed an internal research effort to assess the feasibility and accuracy of aerial imaging for mapping bridge deck conditions. The results of this study provided support for implementation on upcoming projects. The primary advantage of the aerial method is its efficiency. Data can be collected for hundreds of bridge decks in a single…
Idaho Bridge Deck Condition Evaluations as Part of Network Level Survey
As part of the roadway structure database Infrasense developed to assist the Idaho Transportation Department (ITD), we also collected and analyzed data to assess the condition of each bridge deck located on the pavement network. Infrasense used high-speed Ground Penetrating Radar (GPR), Infrared Thermography (IR), and High-Resolution Video (HRV) testing to create plan view maps…
Network-Level Bridge Deck Evaluations in Wisconsin
Infrasense, through multiple work orders, has conducted infrared thermography (IR, per ASTM D4788-03) and ground penetrating radar (GPR, per ASTM D6087-08) surveys on over 800 decks representing 7.7 million sq. ft. in Wisconsin’s SW, NC, NW, NE, and SE regions. In 2017, Infrasense conducted surveys on over just over 130 decks. All GPR data collection…
Condition Evaluation of 103 Bridge Decks in Ohio
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…