Oklahoma State Capitol Oklahoma State Capitol The Oklahoma State Capitol is the house of government of the U.S. state of Oklahoma. It is the building that houses the Oklahoma Legislature and executive branch offices. It is located along Lincoln Boulevard in Oklahoma City and contains 452,508 square feet of floor area. The present structure includes a dome completed in 2002. Oklahoma's first capital was Guthrie, Oklahoma, but it moved to Oklahoma City in 1910. Construction began on the Oklahoma State Capitol in 1914 and was completed in 1917. Originally, it housed the judicial branch of Oklahoma, but the state's high courts moved most
Oklahoma State Highway 151 while on the east side is the Arkansas River. After crossing the dam, the route ends at US-64/US-412 at another trumpet interchange, west of Sand Springs. Keystone Dam was completed in 1964. The dam was first shown as a state highway on the 1965 state highway map. No SH-151 shield was shown on this map, however; presumably it was omitted for space reasons. The highway would remain unlabeled on the official state maps until the 2008 edition. Oklahoma State Highway 151 State Highway 151 (abbreviated SH-151 or OK-151) runs across Keystone Dam in northeastern Oklahoma. Its entire length is within