MUTCD/California/C

Series C of the CA MUTCD is for temporary traffic control signs. The following tables display only the signs specific to the CA MUTCD in California; consult MUTCD/CW for warning signs in construction zones and MUTCD/G for work zone signs in the national standard.

In general, OpenStreetMap only maps long-term closures and construction sites. For routing purposes, short-term construction is more reliably and efficiently tracked in incident management systems along with real-time traffic congestion data.

C2: Road Closed

Sign or plaque	Designation	Name	Tags	Notes
	C2	Road (Bridge, Ramp, Street) Closed	access=no

C9: Flagger Symbol

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C9A.svg	C9A	Flagger Symbol	supervised=yes

C11: Road Work Next XX Miles

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C11.svg	C11	Road Work Next XX Miles	hazard=roadworks for 5 miles

C12: Narrow Lane(s)

Sign or plaque	Designation	Name	Tags	Notes
	C12	Narrow Lane(s)	narrow=yes ahead

C14: End Road Work

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C14.svg	C14	End Road Work	N/A

C19: Road Closed Ahead

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C19.svg	C19	Road (Ramp) Closed Ahead	access=no ahead

C20: Lane Closed Ahead

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C20.svg	C20	Right (Left) Lane Closed Ahead	access:lanes=|no|no ahead
File:MUTCD-CA C20A.svg	C20A	Left (plate)	access:lanes=no|no| ahead
File:MUTCD-CA C20B.svg	C20B	Numeral (plate)	access:lanes=* has no as many times as the plate indicates

C23: Road Work Ahead

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C23.svg	C23	Road Work Ahead	hazard=roadworks ahead
	C23B	Road (Street) Work Informational Plaque	?

C24: Shoulder Work Ahead

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C24.svg	C24	Shoulder Work Ahead	?

C26: Pilot Car Follow Me

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C26.svg	C26	Pilot Car Follow Me	N/A

C27: Open Trench

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C27.svg	C27	Open Trench	?

C28: Handle and staff assembly for W20-8 Stop-Slow Paddle

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C28.svg	C28	Handle and staff assembly for W20-8 Stop-Slow Paddle	N/A

C30: Lane Closed

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C30.svg	C30	Lane Closed	access:lanes=*
File:MUTCD-CA C30A.svg	C30A	Shoulder Closed	?

C31: No Shoulder

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C31A.svg	C31A	No Shoulder	shoulder=no

C36: Traffic Control – Wait and Follow Traffic

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C36.svg	C36	Traffic Control – Wait and Follow Traffic	N/A

C37: Traffic Control – Wait and Follow Pilot Car

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C37.svg	C37	Traffic Control – Wait and Follow Pilot Car	N/A

C38: Use Next Exit

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C38.svg	C38	Use Next Exit	?

C40: Traffic Fines Doubled

Sign or plaque	Designation	Name	Tags	Notes
	C40	Traffic Fines Doubled in Construction Zones	fine:maxspeed=double	Speculative
	C40A	Traffic Fines Doubled in Work Zones	fine:maxspeed=double	Speculative

C43: Fresh Concrete

Sign or plaque	Designation	Name	Tags	Notes
	C43	Fresh Concrete	surface=concrete smoothness=excellent

C44: Trucks Entering Exiting

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C44.svg	C44	Trucks Entering Exiting	hazard=slow_lorries

C45: Rumble Strips

Sign or plaque	Designation	Name	Tags	Notes
	C45	Rumble Strips	traffic_calming=rumble_strip

C46: Uneven Pavement

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C46.svg	C46	Uneven Pavement	traffic_calming=uneven_road
File:MUTCD-CA C46P.svg	C46P	Uneven Pavement	traffic_calming=uneven_road

C48: Rebuilding California Signs

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C48B.svg	C48B	Construction Project Funding Identification Sign (Rebuilding CA)	highway=construction opening_date=2025 advertising=sign message=funding funding=Building California funding:wikidata=Q48976599 beneficiary=California Department of Transportation beneficiary:wikidata=Q127743

C49: Clean California Signs

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C49A.svg	C49A	Construction Project Funding Identification Sign (Clean CA)	highway=construction advertising=sign message=funding funding=Clean California beneficiary=California Department of Transportation beneficiary:wikidata=Q127743
File:MUTCD-CA C49D.svg	C49D	Construction Project Funding Identification Sign (Clean CA and Building CA)	highway=construction advertising=sign message=funding funding=Clean California;Building California funding:wikidata=Q135413056;Q48976599 beneficiary=California Department of Transportation beneficiary:wikidata=Q127743

C50: Construction Project Funding Identification Sign

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C50C.svg	C50C	Construction Project Funding Identification Sign (Federal-Aid Highway Funds and Building CA)	highway=construction opening_date=2025 advertising=sign message=funding funding=Building California funding:wikidata=Q48976599 funder=Federal Highway Administration;California Department of Transportation funder:wikidata=Q800112;Q127743
File:MUTCD-CA C50D.svg	C50D	Construction Project Funding Identification Sign (Federal-Aid Highway Funds and Building CA)	highway=construction opening_date=2025 advertising=sign message=funding funding=Building California funding:wikidata=Q48976599 funder=Federal Highway Administration;California Department of Transportation funder:wikidata=Q800112;Q127743

C51: Local Funds Only Sign

Sign or plaque	Designation	Name	Tags	Notes
File:MUTCD-CA C51.svg	C51	Construction Project Funding Identification Sign (Local Funds)	highway=construction opening_date=2023 advertising=sign message=funding beneficiary=Los Angeles County Metropolitan Transportation Authority beneficiary:wikidata=Q3259702

External links

• CA MUTCD Chapter 6F. Temporary Traffic Control Zone Devices
• California Temporary Traffic Control (C) Sign Specs
• Diagrams of warning signs of California