Driver's License Test Prep
Orange horizontal rectangle with the word DETOUR in black above a thick black arrow pointing left.
MUTCD
M4-9L
Category
work zone
Color
orange
Shape
rectangle horizontal
National · MUTCD Sign Reference

Detour Left

Construction or closure detour route turns left here.

Posted in a temporary traffic control zone, this marker directs drivers along a detour route that bends to the left. It is used where the normal roadway is closed for construction, an incident, or a special event, and is typically repeated at each decision point so motorists can follow the alternate route to its end.

In the same family

Related signs

Source

Wikimedia Commons: File:MUTCD M4-9L.svg (Public domain)

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