Post-Construction Cover Depth Mapping by GPR

7/1/2023

NEXCO can apply accurate mapping of structural layer depths using 3D GPR datasets. With known information about the structure (as-builts or destructive coring), exact depths can be determined, but regardless of whether this information is available or not, differentials in height within singular layers or multiple layers can be calculated. In the case of newly constructed bridges, such as the one our team scanning last week, cover maps provide insight into how much concrete cover was poured, and whether it was poured evenly. Knowing of any errors from under/over pouring early on in the bridge’s life is critical.