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Drawings
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ô
See appropriate end terminal details.
Normal project side slope. See typical sections.
See Design Parameters table for radius and flare rate.
1
Speed
50
FlareRadius
Flare
325.1 6'
375.1 4'
225.23'
1 5: 1
1 4: 1
1 1 : 1
(R)
375.55'
350.59'
275.76'
250.83'
Radius
(R)
30: 1
26: 1
21: 1
18: 1
262.70'
55 24: 1 300.1 7'1 2: 1 300.69'
200.26'8: 1 201.04' 16: 1
1 0: 1
(mph)
60
45
Rate
(a:b)
Design
Rate
70
(2a:b)
40
Design Parameters
ALIGNMENT (FLARED) & DETAILS
Normal
Post spacing
ì of R.C.B.
Varies
Varies
TYPICAL ELEVATIONS
Varies
Normal
Post spacing
6'-3" 6'-3"
1'-0" (min.) from structure1'-0" (min.) from structure
ÚMidspan splice
Typical Guardrail AlignmentTypical Guardrail Alignment
Œ"
1̂ "
12 ‚
"
1 ˜"
ˆ" Tolerance
3‚"
3‰"
3‚
"
•" R
•" R
…" R
TYPICAL W-BEAM RAIL
Neutral axis
Sym
m. about
Lc
10°
Note: Where guardrail is beyond shy line use flare rate of a:b
line use flare rate of 2 a:b and 12'-6" curve length.
and 25'-0" curve length. When guardrail is located inside shy
Var.
TYPICAL ALIGNMENT
25'-0"
R=ô
ô
R=ô
ô
6'-0" to face of rail
Slo
pe
varies
Varies
6'-0" to face of rail
5'5'
4: 1 or
varia
ble
flatter
3: 1 or
5'5' 4: 1 or
varia
ble
3: 1 or
flatter
3: 1 or
flatter
flatter
3: 1 or
flatter
flatter
4: 1 or
50'-0"
End
Terminal
10:1 or Flatter
12.5'
End
Terminal
Slo
pe var.
10: 1 or flatter
of guardrail
4'-0" from face
of guardrail
4'-0" from face
ab
b2a
ÚLine of normal slope change
Line of normal slope changeÜ
This area to be maintained
free of fixed objects.
100'-0"
100'-0"
4:1 or12'-6"
12'-6"
Normal shoulder lineÛ
Normal shoulder lineÜ
(MGS-FLEAT or MGS-SRT) End Terminal
with an L
Ó dista
nce
measured fro
m th
e edge of th
e area of concern to th
e P.I. of th
e curved guardrail s
ection.
Notes to Desig
ner:
Deter
min
e guardrail length of need usin
g either K
DO
T's Length of Need E
quation or a graphic desig
n approach
3'-1•"
DETAIL OF BASE PLATE DETAIL OF STEEL PLATE
A A
Reinforced concrete culvert slab
Ground line
s1" Dia. x (T + 2")
A307 bolts with washers
s
Varia
ble le
ngth posts
2'-
7"
T
Post Length is Determined by the Engineer in the Field During Installation
W6x8.5 or W6x9 Posts
Less
6'-
0" or
POST DETAILS
1"
ALTERNATE POST ATTACHMENT(This attachment to be used only when bolting
through the top slab is not practical.)
0" ë D ë 41"
See Detail A
See Detail A
DETAIL A FOR ATTACHMENT ASSEMBLY
See Detail A
A A
PL ‚"x11"x8•"PL •"x12"x8•"
8•
"
8•
"
12" 11"
5"
5"
1ƒ
"
1‚"x1•"
Slotted holes
7"
1ƒ
"
3"
•"
7"2"
‚"
4‚
"4‚
"
1"
SECTION A-A
Š"
‚"
3 Pass Weld
PL ‚"x11"x8•"
Embed anchor rod a min. of 8"
PL •"x12"x8•"
3'-1•" 3'-1•" 3'-1•" 3'-1•" 3'-1•" 3'-1•" 3'-1•"
PL •"x12"x8•"
Use a bonding agent with a min.
bond strength of 1,800 psi.
3'-1•"3'-1•"3'-1•"3'-1•"3'-1•"3'-1•" 3'-1•" 3'-1•" 3'-1•" 3'-1•" 3'-1•" 3'-1•"
PL •"x12"x8•"
1'-6" (min.)
1‚" Dia.
ON BRIDGE-SIZED STRUCTURES
RD621B for (MGS-SRT) End Terminal.
Drawing RD606E for (MGS-FLEAT) End Terminal or Standard Drawing
Guardrail layout shown this sheet is for flared installation, see Standard
not shown on this sheet.
See Standard Drawing RD611A for guardrail post and blockout details
Use Standard W-Beam Guardrail throughout.
from posts attached to structure to End Terminal.
fill bridge-sized structure. See Typical Alignment for guardrail installation
Use this Standard Drawing for (MGS) Guardrail installed over a low
GENERAL NOTES
argon-oxygen or CO cover gas.
with ER70S-3 welding wire and
the Gas-Metal Arc Welding process
Welding is to be completed using
2
standard specifications.
polyester resin in accordance with
grouted with an approved epoxy or
Rod with Nut and Washer to be
1" Dia. A307 Grade A Threaded
FOR (MGS) GUARDRAIL
1-3-13 Initial Release S.W.K.
STATE
KANSAS
YEARPROJECT N0.SHEETS
TOTALSHEET NO.
rd617e.d
gn
File :
Dra
wn B
y :trhoads
Plotted :03-O
CT-2
013 0
8:2
1
DATE REVISIONS BY APP'DNO.
KANSAS DEPARTMENT OF TRANSPORTATION
FHWA APPROVAL
DESIGNED
DETAILED
DESIGN CK. DETAIL CK. QUAN.CK.
RD617E
TRACED Bowser
TRACE CK. King
QUANTITIES
APP'D. James O. Brewer
J.O.B.
1-3-13
KD
OT G
raphics C
ertified
KDOT Graphics Certified 10-03-2013
