It heads due east from there for approximately 2+1⁄2 miles, reaching the neighboring city of Independence.
In Independence, it turns north, running parallel to the Willamette River, and continues for 6 miles (9.7 km).
While no significant improvements are planned to OR 51 itself; a proposed project to improve OR 22 includes conversion of the (notoriously dangerous) intersection between OR 51 and OR 22 into a grade-separated interchange.
[3] Milepoints are as reported by ODOT and do not necessarily reflect current mileage.
Z indicates overlapping mileage due to construction longer than established route, and – indicates negative mileage behind established beginning point.