274 signs
Warning signs in California
Yellow diamonds that tell you what is ahead before you can see it — a curve, a merge, a crossing, a change in the road surface.
- W1-1L Sharp left turn ahead
- W1-1R Sharp right turn ahead
- W1-2L Left curve ahead
- W1-2R Right curve ahead
- W1-3L Reverse turns beginning with a left turn
- W1-3R Reverse turns beginning with a right turn
- W1-5L Winding road beginning with a left curve
- W1-5R Winding road beginning with a right curve
- W1-6L Directional arrow pointing left for horizontal alignment guidance
- W1-6R Directional arrow pointing right for horizontal alignment guidance
- W1-7 Large arrow indicating two-way traffic flow or alignment
- W1-8L Chevron alignment marker pointing left
- W1-8R Chevron alignment marker pointing right
- W1-10aL Left curve with an intersecting crossroad
- W1-10aR Right curve with an intersecting crossroad
- W1-10bL Left curve with a tangent road intersection
- W1-10bR Right curve with a tangent road intersection
- W1-10cL Left curve with a tangent road from the side
- W1-10cR Right curve with a tangent road from the side
- W1-10dL Reverse curves starting left with a side road intersection
- W1-10dR Reverse curves starting right with a side road intersection
- W1-10eL Reverse curves starting left with a crossroad intersection
- W1-10eR Reverse curves starting right with a crossroad intersection
- W1-10L Left curve with a side road intersection
- W1-10R Right curve with a side road intersection
- W1-11L Sharp hairpin curve turning left
- W1-11R Sharp hairpin curve turning right
- W1-13L Trucks of rollover danger on left curve at posted speed
- W1-13R Trucks of rollover danger on right curve at posted speed
- W1-15L 270-degree loop curve turning left
- W1-15R 270-degree loop curve turning right
- W2-1 Four-way intersection or crossroad ahead
- W2-2L Side road entering from the left
- W2-2R Side road entering from the right
- W2-3aL Side road entering from the left at an obtuse angle
- W2-3aR Side road entering from the right at an obtuse angle
- W2-3L Side road entering from the left at an acute angle
- W2-3R Side road entering from the right at an acute angle
- W2-4 T-intersection ahead where the road ends
- W2-5 Y-intersection where the road splits into two branches
- W2-6 Roundabout ahead
- W2-7L Offset side roads with the first road on the left and the second on the right
- W2-7R Offset side roads with the first road on the right and the second on the left
- W2-8L Two side roads entering from the left in close succession
- W2-8R Two side roads entering from the right in close succession
- W2-10 Traffic will be entering when the signal is flashing
- W2-11 Traffic will be approaching when the signal is flashing
- W3-1 A stop sign is ahead
- W3-2 A yield sign is ahead
- W3-3 A traffic signal is ahead
- W3-4 Be prepared to stop ahead
- W3-5 A speed limit change is ahead
- W3-5A A speed zone is ahead
- W3-5b A variable speed zone is ahead
- W3-5c A truck speed zone is ahead
- W3-6 A drawbridge is ahead
- W3-7 A ramp meter is ahead
- W3-8 The ramp is metered when the signal is flashing
- W3-9 Traffic may use the shoulder during specified times and days
- W4-1L Traffic is merging from the left
- W4-1R Traffic is merging from the right
- W4-2L The left lane ends ahead
- W4-2R The right lane ends ahead
- W4-3L An additional left lane is being added
- W4-3R An additional right lane is being added
- W4-4aP Supplemental plaque indicating traffic from the left does not stop
- W4-4aPR Supplemental plaque indicating traffic from the right does not stop
- W4-4bP Supplemental plaque indicating oncoming traffic does not stop
- W4-4P Supplemental plaque indicating cross traffic does not stop
- W4-5aP Supplemental plaque indicating no merge area available
- W4-5L Vehicles entering the roadway to merge left
- W4-5R Vehicles entering the roadway to merge right
- W4-6L Additional left lane when entering the roadway
- W4-6R Additional right lane when entering the roadway
- W4-7L Heavy traffic merging from the left
- W4-7R Heavy traffic merging from the right
- W4-8 Transition to a single lane ahead
- W5-1 The road narrows ahead
- W5-2 Narrow bridge ahead
- W5-2a Narrow underpass ahead
- W5-3 One-lane bridge ahead where opposing traffic must yield
- W5-3a One-lane underpass ahead where opposing traffic must yield
- W5-4 The ramp narrows ahead
- W5-4a The path narrows ahead
- W6-1 A divided highway begins ahead
- W6-2 A divided highway ends ahead
- W6-3 Two-way traffic ahead
- W6-5 Two-way traffic on a 3-lane road with two lanes in the opposing direction
- W6-5a Two-way traffic on a 3-lane road with one lane in the opposing direction
- W7-1 Steep grade or hill ahead
- W7-1a Steep grade with specific percentage indicated
- W7-1A Hill ahead
- W7-2bP Supplemental plaque advising trucks to use lower gear
- W7-2P Supplemental plaque advising to use low gear
- W7-3aP Supplemental plaque indicating the distance to the next hill condition
- W7-3bP Supplemental plaque indicating grade percentage and distance ahead
- W7-3P Supplemental plaque indicating grade percentage ahead
- W7-4 Runaway truck ramp at specified distance
- W7-4b Runaway truck ramp ahead
- W7-4c Truck escape ramp ahead
- W7-4dP Supplemental plaque indicating sand surface for truck ramp
- W7-4eP Supplemental plaque indicating gravel surface for truck ramp
- W7-4fP Supplemental plaque indicating paved surface for truck ramp
- W7-5 Hill ahead specifically for bicycles
- W7-6 A hill blocks the view ahead
- W8-1 Bump in the road ahead
- W8-2 Dip in the road ahead
- W8-3 Paved road ends ahead
- W8-4 Soft shoulder conditions
- W8-5 Road surface is slippery when wet
- W8-5aP Supplemental plaque indicating ice conditions
- W8-5bP Supplemental plaque indicating steel deck bridge conditions
- W8-5cP Supplemental plaque indicating excess oil on road surface
- W8-5P Supplemental plaque indicating conditions when wet
- W8-6 Truck crossing area
- W8-7 Loose gravel on the road surface
- W8-8 Rough road conditions ahead
- W8-9 Low shoulder conditions
- W8-10 Bicycles of slippery conditions when wet
- W8-10P Supplemental plaque for slippery when wet conditions
- W8-11 Uneven lane conditions
- W8-12 Road has no center line marking
- W8-13 Bridge surface ices before the roadway
- W8-14 Potential fallen rocks on roadway
- W8-15 Grooved pavement conditions
- W8-15aP Supplemental plaque for motorcycle-specific pavement conditions
- W8-16 Metal bridge deck conditions
- W8-17L Left shoulder drop-off ahead
- W8-17P Supplemental plaque for shoulder drop-off conditions
- W8-17R Right shoulder drop-off ahead
- W8-18 Road may flood during heavy rain
- W8-19 Water depth measurement gauge
- W8-21 Gusty wind conditions in the area
- W8-22 Fog-prone area ahead
- W8-23 Road has no shoulder ahead
- W8-25 Shoulder ends ahead
- W8-26 Road ends at specified distance
- W8-26a Street ends at specified distance
- W9-1 The right lane ends ahead
- W9-1L The left lane ends ahead
- W9-2L Lane ends and traffic must merge left
- W9-2R Lane ends and traffic must merge right
- W9-4 Lanes merge ahead
- W9-5 The bicycle lane ends ahead
- W9-5a Bicycles are merging into traffic
- W9-6 Toll payment ahead with distance and price information
- W9-6a Stop ahead for toll payment with price information
- W9-6bP Supplemental plaque for toll payment with distance and price information
- W9-6cP Supplemental plaque for stop ahead toll payment
- W9-6dP Supplemental plaque for stop ahead toll payment
- W9-6e Take ticket at specified distance ahead
- W9-6f Stop ahead to take ticket
- W9-6gP Supplemental plaque for take ticket with distance information
- W9-6hP Supplemental plaque for stop ahead take ticket
- W9-7L Left lane is for exit only
- W9-7R Right lane is for exit only
- W10-1 Railroad crossing ahead
- W10-1aP Supplemental plaque indicating exempt vehicles from railroad crossing requirements
- W10-2L Crossroads with railroad tracks parallel to the left
- W10-2R Crossroads with railroad tracks parallel to the right
- W10-3L Side road with railroad tracks parallel to the left
- W10-3R Side road with railroad tracks parallel to the right
- W10-4L T intersection with railroad tracks parallel to the left
- W10-4R T intersection with railroad tracks parallel to the right
- W10-5 Low ground clearance at railroad crossing
- W10-5P Supplemental plaque for low ground clearance warning
- W10-7 Activated blank-out sign warning of approaching light rail transit
- W10-8 Trains may exceed specified speed limit
- W10-9 Trains do not sound horn at crossing
- W10-9P Supplemental plaque for no train horn warning
- W10-11 Storage space between railroad tracks and roadway
- W10-11a Specific distance between tracks and highway
- W10-11b Specific distance between highway and tracks behind
- W10-12L Skewed railroad crossing ahead to the left (supplements W10-1)
- W10-12R Skewed railroad crossing ahead to the right (supplements W10-1)
- W10-13P Supplemental plaque indicating no gates or lights at crossing
- W10-14aP Supplemental plaque directing to use next crossing
- W10-14P Supplemental plaque indicating next crossing information
- W10-15P Supplemental plaque warning of rough railroad crossing
- W10-16 Activated blank-out sign warning of another train approaching
- W10-21 Busway crossing ahead
- W10-21aP Supplemental plaque indicating signal ahead at busway crossing
- W11-1 Bicycle crossing or bicycle activity ahead
- W11-2 Pedestrian crossing or pedestrian activity ahead
- W11-3 Deer crossing area ahead
- W11-4 Cattle crossing area ahead
- W11-5 Farm vehicles crossing or using the roadway
- W11-6 Snowmobile crossing area ahead
- W11-7 Equestrian crossing or horse rider activity ahead
- W11-8 Emergency vehicle crossing or station ahead
- W11-9 Handicapped or disabled person crossing area ahead
- W11-10 Truck crossing or heavy truck activity ahead
- W11-11 Golf cart crossing area ahead
- W11-12P Supplemental plaque indicating emergency signal ahead
- W11-14 Horse-drawn vehicles crossing or using the roadway
- W11-15 Bicycle and pedestrian crossing area ahead
- W11-15a Trail crossing ahead
- W11-15P Supplemental plaque for trail crossing
- W11-16 Bear crossing area ahead
- W11-17 Sheep crossing area ahead
- W11-18 Ram crossing area ahead
- W11-19 Donkey crossing area ahead
- W11-20 Elk crossing area ahead
- W11-21 Moose crossing area ahead
- W11-22 Wild horse crossing area ahead
- W12-1 Low clearance ahead with double arrow indication
- W12-2 Low clearance ahead
- W12-2a Low overhead clearance with specific height indication
- W12-2b Low overhead clearance with height measurement
- W13-1aP Supplemental plaque confirming speed advisory information
- W13-1P Advisory speed recommendation plaque
- W13-2 Advisory speed for exit ramp conditions
- W13-3 Advisory speed for ramp conditions
- W13-6 Advisory speed for exit with 270-degree loop curve
- W13-7 Advisory speed for ramp with 270-degree loop curve
- W13-8 Advisory speed for exit with hairpin curve
- W13-9 Advisory speed for ramp with hairpin curve
- W13-10 Advisory speed for exit with turn
- W13-11 Advisory speed for ramp with turn
- W13-12 Advisory speed for exit with truck rollover warning
- W13-13 Advisory speed for ramp with truck rollover warning
- W13-20 Variable speed feedback sign for dynamic speed management
- W13-20aP Supplemental plaque for variable speed feedback system
- W14-1 Dead end street ahead
- W14-1aL Dead end street to the left
- W14-1aR Dead end street to the right
- W14-2 Street with no outlet ahead
- W14-2aL Street with no outlet to the left
- W14-2aR Street with no outlet to the right
- W14-3 Beginning of a no passing zone
- W15-1 Playground area ahead where children may be present
- W16-1aP Supplemental plaque indicating 'In Street' for warning signs
- W16-1P Supplemental plaque indicating 'In Road' for warning signs
- W16-2aP Supplemental plaque showing distance in feet
- W16-2P Supplemental plaque showing distance in feet
- W16-3aP Supplemental plaque showing distance in miles
- W16-3P Supplemental plaque showing distance in miles
- W16-4P Supplemental plaque indicating next distance in feet
- W16-5PL Supplemental arrow plaque pointing to the left
- W16-5PR Supplemental arrow plaque pointing to the right
- W16-6PL Supplemental arrow plaque pointing to the left
- W16-6PR Supplemental arrow plaque pointing to the right
- W16-7aP Supplemental plaque with dual downward diagonal arrows
- W16-7PL Supplemental plaque with downward diagonal arrow to the left
- W16-7PR Supplemental plaque with downward diagonal arrow to the right
- W16-8aP Advance street name plaque with double arrow
- W16-8P Advance street name plaque
- W16-9P Supplemental plaque indicating 'Ahead'
- W16-10aP Supplemental plaque indicating photo enforcement
- W16-10P Supplemental plaque with photo enforcement symbol
- W16-11P Supplemental plaque indicating High Occupancy Vehicle (HOV)
- W16-12aP Supplemental plaque for roundabout junction
- W16-12P Supplemental plaque for traffic circle
- W16-13P Supplemental plaque indicating 'When flashing'
- W16-15P Supplemental plaque indicating 'New'
- W16-16aP Two-line supplemental plaque for last exit before toll
- W16-16P One-line supplemental plaque for last exit before toll
- W16-17P Supplemental plaque indicating 'Toll'
- W16-18P Supplemental plaque indicating 'Notice'
- W16-19P Supplemental plaque indicating 'Last In Corridor'
- W16-20P Supplemental plaque indicating 'Except Bicycles'
- W16-21P Supplemental plaque indicating '2-Way Bicycle Cross Traffic'
- W17-1 Speed hump ahead on the roadway
- W18-1 There are no traffic control signs ahead at intersection
- W19-1 Freeway ends at specified distance ahead
- W19-2 Expressway ends at specified distance ahead
- W19-3 Freeway ends ahead
- W19-4 Expressway ends ahead
- W19-5 All traffic must exit the freeway or expressway
- W23-2 New traffic pattern ahead
- W23-2a New signal operation ahead
- W25-1 Oncoming traffic has extended green light phase
- W25-2 Oncoming traffic may have extended green light phase
- W26-1 Watch for stopped traffic ahead
