On the Big Island, this bridge - https://firstname.lastname@example.org,-2.1104284,3a,43.2y,295.57h,94.67t/data=!3m7!1e1!3m5!1swLeyRiJ8A7ZAGfEjJ4LsHw!2e0!6s%2F%2Fgeo2.ggpht.com%2Fcbk%3Fpanoid%3DwLeyRiJ8A7ZAGfEjJ4LsHw%26output%3Dthumbnail%26cb_client%3Dsearch.TACTILE.gps%26thumb%3D2%26w%3D96%26h%3D64%26yaw%3D11.925991%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192 - near me, received supplementary beams a few years ago.
Oddly, this slightly lower bridge, a few miles to the south, where the same track crosses the same road, is not protected - https://email@example.com,-2.0044195,3a,75y,317.53h,91.44t/data=!3m7!1e1!3m5!1sR1i6aig95slwLun3Bda9IQ!2e0!6s%2F%2Fgeo0.ggpht.com%2Fcbk%3Fpanoid%3DR1i6aig95slwLun3Bda9IQ%26output%3Dthumbnail%26cb_client%3Dsearch.TACTILE.gps%26thumb%3D2%26w%3D96%26h%3D64%26yaw%3D68.25344%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192 - it does look as though the road surface there may have been lowered there at some time in the distant past, though.
These bridges are either side of the site of the https://en.wikipedia.org/wiki/Hixon_rail_crash - the level crossing there was finally replaced by a bridge 33 years later...
The road surface on the opposite carriageway here - https://firstname.lastname@example.org,-2.1587875,3a,48.4y,119.37h,87.44t/data=!3m6!1e1!3m4!1sWjdH2HXwEnnNWAggqoGO2Q!2e0!7i16384!8i8192 - was also lowered - this time it was to allow oversized loads to use that side of the road in both directions - a regular source of chaos to this day. A look at the roundabout to the south will show the gated road across it, where transporters can cross sides without negotiating the roundabout.