MUTCD/California/W

Series W of the CA MUTCD is for warning signs. The following tables display only the signs specific to the CA MUTCD in California; consult MUTCD/W for warning signs and MUTCD/IM for incident management signs in the national standard.

W4: Combination Turn/Advisory Speed

Sign or plaque	Designation	Name	Tags	Notes
File:Caltrans W4-1L.svg	W4-1L	Combination Turn/Advisory Speed	hazard=turns maxspeed:advisory=10 mph
	W4-1R
	W4-4L	Combination Turn/Advisory Speed	hazard=turn maxspeed:advisory=25 mph
	W4-4R
	W4-7L	Combination Turn/Advisory Speed	hazard=curve maxspeed:advisory=35 mph
	W4-7R
File:MUTCD-CA W4-10L.svg	W4-10L	Combination Turn/Advisory Speed	hazard=curve curve=hairpin maxspeed:advisory=25 mph
File:MUTCD-CA W4-10R.svg	W4-10R
File:MUTCD-CA W4-14L.svg	W4-14L	Combination Turn/Advisory Speed	hazard=curve curve=loop maxspeed:advisory=15 mph
File:MUTCD-CA W4-14R.svg	W4-14R
File:MUTCD-CA W4-18L.svg	W4-18L	Combination Turn/Advisory Speed	hazard=curves curves=serpentine maxspeed:advisory=40 mph
File:MUTCD-CA W4-18R.svg	W4-18R
File:MUTCD-CA W4-22L.svg	W4-22L	Combination Turn/Advisory Speed	hazard:hgv=rollover maxspeed:advisory=35 mph	Speculative
File:MUTCD-CA W4-22R.svg	W4-22R

W20: Weight Limit

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W20.svg	W20	Weight Limit	maxweight:hgv=8 st maxweight:hgv_articulated=12 st maxweight:hgv:conditional=16 st @ (trailer) ahead
File:MUTCD-CA W20A.svg	W20A	Weight Limit	maxweight:hgv_articulated=12 st maxweight:hgv:conditional=16 st @ (trailer) ahead

W29: Steep Grade

Sign or plaque	Designation	Name	Tags	Notes
	W29A	___ % Grade Plaque	incline=-9%
	W29B	___ % Grade Plaque	incline=-9% for 7 miles
	W29C	Trucks Use Lower Gear Plaque	?

W30: Runaway Truck Ramp

Sign or plaque	Designation	Name	Tags	Notes
	W30	Runaway Truck Ramp (X Mile)	highway=escape 1 mile ahead
	W30A	Runaway Truck Ramp Arrow	highway=escape
	W30B	Deep Gravel	surface=gravel	How to indicate that the gravel is piled on thick?
File:MUTCD-CA W30C.svg	W30C	Right (Left) Exit	N/A	Draw the highway=escape way branching to the right (or left).

W31: Road Ends

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W31.svg	W31	End	noexit=yes
File:MUTCD-CA W31A.svg	W31A	Road Ends ___ Ft	noexit=yes in 500 feet

W34: Caution Vertical Clearance

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W34A.svg	W34A	Distance Ahead Plaque	maxheight=* 3 miles ahead
File:MUTCD-CA W34C.svg	W34C	Caution Vertical Clearance ___' ___" Arrow	maxheight=13'10" to the right

W38: Slide Area

Sign or plaque	Designation	Name	Tags	Notes
	W38	Slide Area	hazard=landslide

W44: Two Way Traffic Plaque

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W44A.svg	W44A	Two Way Traffic Plaque	oneway=no

W46: Exempt

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W46A.svg	W46A	Exempt 2W-5.1-C	?

W48: Number of Tracks

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W48.svg	W48	Number of Tracks	tracks=4	Unnecessary if tracks are already mapped as separate ways

W50: Rock Slide Area

Sign or plaque	Designation	Name	Tags	Notes
	W50-1	Rock Slide Area	hazard=falling_rocks

W51: Slow Trucks

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W51.svg	W51	Slow Trucks	hazard=slow_lorries

W55: Flooded

Sign or plaque	Designation	Name	Tags	Notes
	W55	Flooded	hazard=flood

W59: (HOV) Merge

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W59-1.svg	W59-1	(HOV) Merge	hazard=merge hov=designated

W61: Lane Drop Panels

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W60A.svg	W61A	Exit	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60B.svg	W61B	Only	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60C.svg	W61C	Exit Only	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60D.svg	W61D	Exit Only with Arrow	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60E.svg	W61E	Exit Only with Arrows	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60F.svg	W61F	Only with Arrow	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60G.svg	W61G	Only with Arrow	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead
File:MUTCD-CA W60H.svg	W61H	Lane Drop Arrow	turn:lanes=slight_right change:lanes=yes highway=motorway_junction ahead

W69: End Freeway

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W69.svg	W69	End Freeway (X Mile)	End highway=motorway in ½ mile

W70: Cross Traffic Ahead

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W70.svg	W70	Cross Traffic Ahead	Begin expressway=yes ahead

W71: Next Distance Plaque

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W71.svg	W71	Next Distance Plaque	N/A	Tag on the next 4 miles

W72: (HOV) Advisory Exit Speed

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W72B.svg	W72B	(HOV) Advisory Exit (Ramp) Speed	highway=motorway_junction highway=motorway_link maxspeed:advisory=30 mph hov=designated

W73: Lane Exits Ahead

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W73.svg	W73	Right (Left) Lane Exits Ahead	turn:lanes=|slight_right change=yes	Lane change restriction begins later
File:MUTCD-CA W73A.svg	W73A	Right (Left) Lane Turns Right (Left) Ahead	turn:lanes=|right change=yes	Lane change restriction begins later

W74: Thru Traffic Merge

Sign or plaque	Designation	Name	Tags	Notes
	W74-L	Thru Traffic Merge Left	turn:lanes=through|right change=yes	Lane change restriction begins later
	W74-R	Thru Traffic Merge Right	turn:lanes=left|through change=yes	Lane change restriction begins later
File:MUTCD-CA W74-1.svg	W74-1	(HOV) Thru Traffic Merge Left (Right)	hov=lane hov:lanes=|designated turn:lanes=through|right change=yes	Lane change restriction begins later

W79: Share the Road

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W74A.svg	W79A	Share the Road	cycleway=shared_lane bicycle=designated

W82: Light Rail Transit Crossing

Sign or plaque	Designation	Name	Tags	Notes
	W82	Light Rail Transit (Trolley) Crossing	railway=tram_crossing or railway=tram_level_crossing
	W82-1	Light Rail Transit (Trolley) Crossing / Look Both Ways	railway=tram_crossing or railway=tram_level_crossing

W83: Pass with Care

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W83.svg	W83	Pass with Care	oneway=no overtaking=yes

W84: Speed Humps Ahead

Sign or plaque	Designation	Name	Tags	Notes
	W84	Speed Humps (Bumps) Ahead	Multiple traffic_calming=hump ahead

W85: Speed Hump Area

Sign or plaque	Designation	Name	Tags	Notes
	W85	Speed Hump (Bump) Area	Multiple traffic_calming=hump ahead

W86: Flooding Ahead Turn Around Don't Drown

Sign or plaque	Designation	Name	Tags	Notes
	W86	Flooding Ahead Turn Around Don't Drown	N/A	Avoid mapping temporary conditions

W87: When Flooded Turn Around Don't Drown

Sign or plaque	Designation	Name	Tags	Notes
	W87	When Flooded Turn Around Don't Drown	hazard=flood

W88: Meter On

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W88-2.svg	W88-2	Meter On (Activated Blank-Out)	highway=traffic_signals traffic_signals=ramp_meter ahead
File:MUTCD-CA W88-3.svg	W88-3	210 West Meter On (Activated Blank-Out)	highway=motorway_link destination:ref=I 210 West highway=traffic_signals traffic_signals=ramp_meter

W89: Prepare to Stop

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA W89.svg	W89	Prepare to Stop (Activated Blank-Out)	highway=traffic_signals traffic_signals=ramp_meter ahead

W90: Emergency Scene Ahead

Sign or plaque	Designation	Name	Tags	Notes
	W90	Emergency Scene Ahead	N/A	Avoid mapping temporary conditions

External links

• CA MUTCD Chapter 2C. Warning Signs and Object Markers
• California Warning (W) Sign Specs
• Diagrams of warning signs of California