I know this is supposed to be funny, but for those that don't know, those are to protect the hose. Those crossings are known to to tear up those expensive hoses. The rail company is notified and the trains are stopped. Sorry for ruining the fun!
Are you just making things up? I can't find anything about railroad crossings tearing up fire hoses. From the fireman who posted the image:
Hey, this past week our funny photo went viral throughout the whole world. Thousands of shares and likes in many different countries! Once and for all: the picture was taken in Belgium, in a small village called Bornem. After a minor intervention, we had some time left near the railway to make this picture. Since there were no trains running at all for a week due to maintenance works, we can state that our joke was a real success! Thanks to our entire team, 2nd sqdn Firefighters Bornem!