(From U.S. Army Engineer District, Galveston, Tx.,
August 1992., p. 18.)
| Year | Activity |
| 1908 | Repaired jetties constructed by the Brazos River Channel and Dock Company. The jetties were 560 feet apart; the length of the North Jetty was 4,708 feet and the South Jetty 5,018 feet. |
| 1911 | Dredged 18- by 150-foot channel from outer end of jetties to railway wharf. |
| 1919 | Channel deepened to 22 feet |
| 1929 | Dredging of Diversion Channel to relocate mouth of the Brazos River completed. |
| 1931 | Outer Bar and Jetty Channels improved to 25 feet deep and 150 feet wide. |
| 1936 | Outer Bar Channel improved to 32 feet deep and 300 feet wide, and Jetty Channel improved to 32 feet deep and 200 feet wide. |
| 1958 | Realigned Outer Bar Channel on straight alignment with Jetty Channel. |
| 1961 | Outer Bar Channel deepened to 38 feet; Jetty Channel deepened to 36 feet. |
| 1990 | Outer Bar Channel improved to 47 feet deep and 400 feet wide. |
| 1991 | North Jetty relocated 640 feet to the northeast, increasing the distance between the jetties to 1,200 feet. |
| 1992 | Jetty Channel improved to 45 feet deep by 400 feet wide. |