Bernard I. Wade, 70, a retired supervisor in the U.S. Postal Service who had been active in Catholic youth programs, died Tuesday at his home in Bethesda following a heart attack.

Mr. Wade was born in Washington and graduated from Eastern High School, where he played right tackle on the 1927 and 1928 football teams.

He began his career with the old Post Office Department about 1932. At the time of his retirement in 1972, he was superintendent of the Main Office Window Service of the Postal Service. He was a president of Local No. 40 of the Post Office Supervisor's Union.

Mr. Wade was a member of the parish of Our Lady of Lourdes Catholic Church. He had been active in Catholic Youth Organization sports programs, coaching girls basketball and softball teams and boys football teams. pHe was a past president of the Post Office Holy Name Society.

Survivors include his wife, Harriet R., of Bethesda; a son, Bernard I., of Reading, Pa.; two daughters, Judith W. Jordan of Potomac, and Sister Joanne M. Wade, O.P., of Deal, N.J., and two brothers, Melvin A., of Germantown, Md., and Kenneth, of Silver Spring.

The family suggests that expressions of sympathy be in the form of contributions to the Mount St. Mary Infirmary, Newburgh, N.Y., 12550.