Impingement assemblies including an impingement plate (420) having an increased cross-flow structure (436) that forms an increased cross-flow area between the impingement plate (422) and an impingement surface (422) when the impingement plate (420) is installed proximate to the impingement surface (422). The increased cross-flow structure has a first portion (438) having at least one impingement hole (424) passing through the first portion (438), the first portion being separated from the impingement surface (422) by an impingement hole height (X), a second portion (440) separated from the first portion (438) by a separation distance (Y) and separated from the impingement surface (422) by a cross-flow structure height (Z), and a third portion (442) extending between the first portion (438) and the second portion (440). The first portion (438), the second portion (440), and the third portion (442) define at least one cross-flow cavity (434) between the impingement plate (420) and the impingement surface (422),
