< Montana
See Montana/Major roads for guidance in Montana that may not be universal to all other states and territories.
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As of Dec. 2015 all Montana's Secondary Highways "SR-x" are to be labeled "S-x" in accordance with MDOT regulations. |
Locking Standard
Montana observes the following locking standards on the following types of road segments. All roads must be locked at least to the minimum level stated. If needing a segment unlocked or locked to a </> level please use the Unlock and Update Request forum.
| Segment Type | Rank |
|---|---|
| Freeway | 4[1] |
| Major Highway | 4 |
| Minor Highway | 3 |
| Ramp | 3 |
| Primary Street | 2 |
| |-|-|-|-|-|-|-|-|-| Railroad |-|-|-|-|-|-|-|-|-| | 2 |
| All Others | 1 |
^1 Freeways may be locked at a 4 or 5.
U-turn Legality
Limitation on U-turns --[1] turning on curve or crest of grade prohibited. An operator of a vehicle may not turn the vehicle to proceed in the opposite direction:
- unless the movement can be made safely and without interfering with other traffic; or
- upon any curve or upon the approach to or near the crest of a grade where the vehicle cannot be seen by the operator of any other vehicle approaching from either direction within 500 feet.
^1 MT Code 61-8-334. Limitation on U-turns