| State: | ID |
| Type: | SH |
| Route: | 31 |
| Alternate Name: | Pine Creek Road |
| Map Custom: | yes |
| Map Notes: | SH-31 highlighted in red |
| Maint: | ITD |
| Length Mi: | 21.025 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | in Swan Valley |
| Direction B: | North |
| Terminus B: | in Victor |
| Counties: | Bonneville, Teton |
| Previous Type: | ID |
| Previous Route: | 29 |
| Next Type: | ID |
| Next Route: | 32 |
State Highway 31 (SH-31) is a 21.025-longNaN-long north-south state highway in the eastern part of the U.S. state of Idaho. SH-31 runs from U.S. Route 26 (US-26) in Swan Valley north to SH-33 in Victor. The highway is maintained by the Idaho Transportation Department. It is known as PIne Creek Road within Bonneville County. It is also known West Center Street in "downtown" Victor.
SH-31 begins at an intersection with US-26 in Swan Valley. The highway leaves Swan Valley to the northeast, crossing Rainey Creek and entering a rural part of Bonneville County. The route turns north before heading northwest, then turning north again. After crossing Pine Creek, SH-31 heads northeast and enters Targhee National Forest. The highway enters a mountainous region at this point, passing to the south of Stouts Mountain. SH-31 crosses North Pine Creek before crossing into Teton County. It passes the Pine Creek Campground before leaving Targhee National Forest. The highway enters a rural area and begins a more easterly course. It turns northeast into Victor, then turns east, becoming Center Street. SH-31 terminates at SH-33 in central Victor.[1] [2]