Original sentence: The number was not chosen to fit the grid, as it lies between Interstate 79 and Interstate 81, and no other suitable two-digit number was available due to the proximity of other odd-numbered interstates in the area, and the long term plans for this freeway are such that a 3-digit number would not have been suitable
Edited sentence: However, many suitable three-digit route numbers were available, such as I-370 or I-576.The number was not chosen to fit the grid, as it lies between Interstate 79 and Interstate 81, and no suitable two-digit number was available