Things needed: hand scraper.
*Farm specific, the order of which crossovers need to be done
1. Get the squeegee or scraper shovel for the crossovers
2. Go to the crossover and push the manure off the edge into the alley
3. Make sure all manure has been scraped off the crossover, including under the water trough if applicable
4. When finished scraping the crossovers, rinse the squeegee or scraper shovel clean with water
5. Put the squeegee or scraper shovel back where you got it from