Selection of State Shoulder Rumble Strip Dimensions

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State Type Offset
(mm)		 Longitudinal
Width (mm)		 Transverse
Width (mm)		 Depth
(mm)		 Center to
Center
(mm)		 Comments
CO milled 150 150-200 450-610 13-16 300 may be older
standard
CT milled 150 lf shld

300 rt shld		 180 400 13 300 +13  
FL illed 400 180 +13 400 min. 13 min.

16 max.		 300 +25 Skip array is
standard; 2100
mm of milled
grooves with
1500 mm of
skip.
FL milled:
transverse cut		 400 180 ±13 150 slope dwn

400 full dpth

150 slope up:

700 max total		 13 min.

16 max		 300 ±25 Skip array is
standard; 2100
mm of milled
grooves with
1500 mm of
skip.
KY cut into cured
PC conc shlds		 300 100 1200 13 300 set of 6
grooves every
18 m O.C.
KY sawed 300 130 ±15 600 15 ±5 1500 ±50 used to correct
rolled or as
option of
contractor
MI milled 300-600 180 400 15 300  
MT milled 150 cut w/ 300 radius
milling head		 300-400 13-19 300  
NJ milled 100 180 400 13 300  
NM milled 300 175 ±15 400 min. 13-16 300  
NY milled 100 lf

250 rt		 180 400 12 300  
PA milled 300 ±13 lf sh

460 ±13 rt sh		 180 400-430 13-16 300  
SC milled 250 177 ±12 406 min. 12-16 305 ±25  
TN milled 400 150 ±13 400 7-10 300  
WA milled 150 180 ±13 400 13-16 300  
WY milled 150 175 400 13-16 300  
AL rolled 150 ±75 25 915 13 200  
AZ rolled 300 60 600 30 200  
CA rolled 300 50 900 25 200  
CO rolled 150   450-610 13-25 200-250 may be older
standard
KY rolled 300 40 ±10 600 20 ±5 230 ±25  
NY rolled 150 lf

150 to
300 rt		 65 150 sloped

450 full dpth

150 sloped,

700 total wdth		 19 200-300  
SD rolled 200 60 915 30 200  
UT rolled 300 38 600 25 ±3 200-230  
CO corrugated
formed in PC
conc shlds		 150 60 450-610 13-25 100 may be older
standard
KY formed in PC
conc shlds		 300 57 shld wdth less
300 each side		 25 114 1800 mm of
corrugations
18 m & 23 m
O.C.
MT formed in PC
conc shlds		 150 50 300-400 25 114 continuous
pattern
NY narrow formed
in PC conc
shlds		 300 170 to 190 400 12-19 600  
NY corrugated
formed in PC
conc shlds		 300 125 600 25 125 5 depressions
in 600 to 625
mm spaced at
500 to 1000
mm intervals
SD corrugated
formed in PC
conc shlds		       25 150 7 depressions
in 1300 mm
spaced at 12 m
intervals
TN corrugated
formed in PC
conc shlds		 300 57 915 25 115 depressions in
1940 mm
spaced at
center point of
conc shld slab
UT corrugated
formed in PC
conc shlds		 1200 60 1800 20 115 depressions in
1800 mm
spaced at 15 m
intervals
WY formed in PC
conc shlds		 300 58 varies, allow
1200 for
bicycle traffic		 25 115 intermittent or
continuous at
choice of
contractor
FL raised:
thermoplastic		 0 100   12
height		 1500 for structures
approach with
narrow shlds
FL raised: asphalt 0 50   13
height		 300 for structures
approach with
narrow shlds

Program Contact

Cathy Satterfield

708-283-3552

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