Coming From the I84 you will need to get off the exit onto Rte 4 going west into Farmington.  You will need to get to the intersection of Rte4 and Rte 10, Look for the Farmington Country Club on the corner.  Head north on Rte 10 and go 4miles to Old Farms Road and take a left onto the Old Farms Road.  You will go past Fisher Meadow Recreation area and take the first right and another immediate right. Follow the road past the grass fields until you have seen the turf stadium about 1/8 mile behind the grass fields.  

See link

https://www.google.com/maps/dir/Farmington+Country+Club,+806+Farmington+Ave,+Farmington,+CT+06032/41.7718791,-72.8212642/@41.7740007,-72.8315217,17.16z/data=!4m8!4m7!1m5!1m1!1s0x89e7ae14de0d817d:0x546e13d025540325!2m2!1d-72.8243517!2d41.7268195!1m0