Augustus Webster Hines, 81, a Washington construction and hotel executive, died at Suburban Hospital in Bethesda on Saturday following a stroke.

Mr. Hines was born in Jersey City, N.J. His family moved to Washington when he was a child. He served in the hydrographic division of the Navy during World War I and then attended the University of Maryland, from which he graduated in 1922 with a bachelor's degree in engineering. He also was commissioned an officer in the Army Reserve, having taken part in the ROTC program at Maryland.

He worked for the North Carolina State Highway Department and then joined the Bureau of Indian Affairs on the Interior Department as a civil engineer. He spent three years in Montana.

In 1926, Mr. Hines joined the Samuel J. Prescott Co. in Washington as a construction engineer. In 1938, he became a vice president and part-owner of the firm and remained active in it until it was dissolved in 1965.

In 1966, he became chairman of the executive committee of the Washington Hotel Co., which owns and operates the Quality Inn-Capitol Hill. He continued in that work until his death.

Mr. Hines was a member of the Terapin Club, the Lakewood Country Club, the University Club, the Washington Host Lions Club and an honorary life member of the Upper Montgomery Farmers Club. He also was a Shriner of the Almas Temple and a Mason of Temple Noyes. He was a member of St. Bartholomew's Episcopal Church in Laytonsville.

Mr. Hines lived at Spring Garden Farm in Laytonsville from 1940 to 1969. Since then, he had lived in Rockville.

Survivors include his wife, the former Evelyn Constance Prescott, whom he married in 1923, of the home in Rockville, a daughter, Margaret Hines Livesay, of Chevy Chase, and two grandchildren. CAPTION: Picture, AUGUSTUS W. HINES