The Citadel building of the Salvation army, located at the north-west corner of Cheyenne Avenue and Easton Street in Tulsa, Oklahoma, has undergone severe structural damage since its construction in the late 1950's, from cracking of interior walls and movements of floor slabs, grade beams, and roof beams. During the period March, 1969, to July, 1970, a highway embankment about 25 ft high was constructed immediately to the north of the building, as part of a grade separation on I 244 over Cheyenne Avenue. It has been suggested that the structural damages may be attributable, at least in part, to the presence of the embankment. Seeking to establish the facts of the matter, the State of Oklahoma, Department of Highways contracted with the School of Civil Engineering at Oklahoma State University, under Project No. 71-02-03, to investigate behavior of the embankment and determine if a causal relationship existed between construction of the embankment and structural damage to the Salvation Army Citadel. The authors, acting repsectively as project director and principal investigator, undertook the investigation on July 1, 1971. Results of the investigation are contained herein.