| State: | OK |
| Type: | SH |
| Route: | 151 |
| Map Custom: | yes |
| Map Notes: | SH-151 highlighted in red |
| Maint: | ODOT |
| Length Mi: | 2.30 |
| Length Ref: | [1] |
| Length Round: | 2 |
| Established: | 1964 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | east of Mannford |
| Terminus B: | west of Sand Springs |
| Previous Type: | SH |
| Previous Route: | 150 |
| Next Type: | SH |
| Next Route: | 152 |
State Highway 151 (abbreviated SH-151 or OK-151) runs 2.3miles across Keystone Dam in northeastern Oklahoma. Its entire length is within Tulsa County. The route has no lettered spur routes.
SH-151 was ostensibly assigned to Keystone Dam upon its completion in 1964.
State Highway 151 begins at a trumpet interchange with SH-51 east of Mannford.[2] While elevated from this interchange, the highway crosses the BNSF Railway.[3] SH-151, running north-northeast, then serves as the eastern boundary of Keystone State Park.[4] It then runs across the top of Keystone Dam; on the west side of the dam lies Keystone Lake, 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.[5]
Keystone Dam was completed in 1964.[6] The dam was first shown as a state highway on the 1965 state highway map.[7] 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.[8]