The Board consisted of a group of Army engineer officers with a resident large staff including many civilian employees.
During World War II, the board established a branch to produce, maintain, and distribute intelligence concerning foreign ports and harbors.
Following the war, the board continued performing that function until 1962 when it was absorbed by the newly organized US Army Area Analysis Intelligence Agency.
The intelligence function of the Board of Engineers for Rivers and Harbors are discussed in the section on "The Statistical Division" (pages 125–127) in a 1980 official history.
[1] In 1963, some functions of the Beach Erosion Board, another Army organization concerned with civil works, were transferred to the newly created US Army Coastal Engineering Research Center, while others were transferred to the Board of Engineers for Rivers and Harbors.