Construction to replace a large portion of grass at Koshien Stadium began on January 5. About 5,500 of the 9,000 square meters of grass, not including a portion in front of the outfield fence that was replaced at a different date, is being replaced. The new grass will have better drainage and shock absorption. Construction will cost about fifty million yen and should be complete before the end of the month. The last time this much grass at Koshien Stadium was replaced was in 2010.
Source: Sanspo 1/6/2017