Rubble Protection (Sand-Cement Protection When Specified)
Rubble Protection (Sand-Cement Protection When Specified)
Wing Wall
Bridge Traffic Railing Barrier
15’
Bridge
Varies (15’ Min.)
30’ Approach Slab With Bridge Traffic Railing Barrier
BRIDGES OVER STREAMS
BRIDGES OVER STREAMS
Limit Of Slope Pavement At Roadways
And Sand Cement Protection At Railroads
^
Sand-Cement Protection
45
12"
1’-6" R (Min.)
Wing Wall
Bridge Traffic Railing Barrier
Bridge
30’ Approach Slab With Bridge Traffic Railing Barrier
BRIDGES OVER ROADWAYS OR RAILROADS
BRIDGES OVER RAILROADS
For Additional Guardrail Information See Sheet 12
For Additional Information See Index No. 402
SKETCHES - BRIDGES WITH SAFETY SHAPE TRAFFIC RAILING BARRIER EXTENDING FULL APPROACH SLAB LENGTH
SKETCHES - BRIDGES WITH SAFETY SHAPE TRAFFIC RAILING BARRIER
EXTENDING LESS THAN FULL APPROACH SLAB LENGTH
SKETCH NOTES
1. These sketches are for showing shoulder interface between roadways and bridges where crossings are normal to other
roadways, railroads and streams. For site specific applications and details see the plans and the FDOT Structures Design
Office "Detailing Manual" and "Design Guidelines".
2. Shoulder treatments shown in these sketches are for locations with shoulder gutter; shoulder hinge location will vary for
facilities without shoulder gutter.
SHOULDER INTERFACE BETWEEN ROADWAYS AND BRIDGES
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
04
13 of 23
Index No.
400
20’
6"
4’
Normal Face
Varies
3’
Normal Face
Of Guardrail
4’-6" (Min.)
Shoulder Pavt.
Shoulder Pavt.
8’
Normal Face
Of Guardrail
6’-6"
2" Misc. Asphalt Pavt.
3’
2" Misc. Asphalt Pavt.
2" Misc. Asphalt Pavt.
6"
Of Guardrail
See Plan Below
(See Detail K)
6"
Normal Face
Varies
Varies
Varies
Varies
6"
Of Guardrail
(See Detail K)
Shoulder Gutter
4’
2" Misc. Asphalt Pavt.
1: 6 For 20’
Not Steeper Than 1: 10
Clear Zone
SHOULDER WITH OR WITHOUT 5’ PAVEMENT
PAVED SHOULDERS
SHOULDER GUTTER
DOUBLE FACE RAIL
1: 3 (Max.) For
20’ Clear Zone
3’
MISCELLANEOUS PAVING FOR STANDARD GUARDRAIL SECTIONS
1: 3 (Max.) For
2" Misc. Asphalt Pavt.
14’ Clear Zone
SECTION AA (EXAMPLE FOR 20’ CLEAR ZONE)
30’
30’
30’
8’
8’
8’
Normal Face
Normal Face
Of Guardrail
Of Guardrail
6’-6"
4’
6"
6’-6"
Normal Face
4’
4’
Of Guardrail
Not Steeper Than 1: 10
Not Steeper Than 1: 10
Shoulder Pavt.
3’
Shoulder Pavt.
Varies
Shoulder Gutter
2" Misc. Asphalt Pavt.
2" Misc. Asphalt Pavt.
1: 6 Reference Line
SECTION CC (EXAMPLE FOR 30’ CLEAR ZONE)
SECTION BB (EXAMPLE FOR 30’ CLEAR ZONE)
A
C
B
3’
3’
Shoulder Line
avt.
alt P
Extended Shoulder
Not Steeper Than 1: 10
10’
Shoulder Line
1 : 15 To No
rmal Shoulde
r Break Point
10’
Not Steeper Than 1 : 10
Varies**
10’ For 8’ Shoulders
12’ For 10’ And 12’ Shoulders
Applies To Left And Right Side Shoulders.
(See Index No. 525 For Shoulder Widths And Shoulder
Gutter Locations On Ramps And Auxiliary Lanes)
Edge Of Traffic Lane
A
**8’ For 6’ Shoulders
Varies
Varies
See Detail K
Varies
Shoulder Gutter
Normal Shoulder
Varies
See Detail K
When Called For In The Plans
Normal Face Of Guardrail
2’ Std.
Misc. Asphalt Pavt. With
Paved Or Unpaved Shoulders
6"
Misc. Asphalt Pavt.
Normal Face Of Guardrail
Normal Face Of Guardrail
Extended Shoulder
On 0.06 Rise
10’
Extended Shoulder
Misc. Asphalt Pavt.
1 : 15 To No
rmal Shoulde
r Break Point
3’
1 : 15 To No
rmal Shoulde
r Break Point
h
. Asp
1: 6 Reference Line
1: 6 Reference Line
SECTION AA (EXAMPLE FOR 30’ CLEAR ZONE)
Shoulder Line
1: 3 (Max.)
7’
1: 3 (Max.)
1: 3 (Max.)
2" Misc. Asphalt Pavt.
Misc
Transition Slope
Transition Slope
Transition Slope
Edge Of Traffic Lane
Edge Of Traffic Lane
C
B
SHOULDER GUTTER
PAVED SHOULDERS
SHOULDER WITH OR WITHOUT 5’ PAVEMENT
SHOULDERS, SLOPES AND MISCELLANEOUS PAVING FOR FLARED END ANCHORAGE ASSEMBLIES
Rubrail (C6!8.2, Plates And Fastners or Bent Plate And
Fastners In Accordance With Standards RLR01 And RER01
Normal Face
2’-0"
*
Of Guardrail
Front Slope
(1 : 4 Or Flatter)
12"
Of AASHTO-AGC-ARTBA "A Guide To Standardized Highway
Traffic Lane
LATERAL PLACEMENT ON FRONT SLOPES (FROM EDGE OF TRAFFIC LANE)
Barrier Hardware")
ACCEPTABLE
SLOPE
Shoulder Width Plus 2’ For All Others Shoulders.
STANDARD LOCATIONS
For shoulders less than 12’ in width
28’ to 45’
the tabulated values will be reduced
4:1
14’ to 27’
Connect Beginning Of Rubrail
5:1
15’ to 25’
26’ to 45’
6:1
17’ to 22’
23’ to 45’
With Post Bolt
Flared End Anchorage
Notes:
WITH RUBRAIL
To Back Side Of No. 3 Post
* 12’ For Shoulders 10’ And Wider;
8’ For Median Shoulders 8’ Or Less In Width; and,
NOT RECOMMENDED
by the difference between 12’ and
the shoulder width.
7:1
21’ to 24’
25’ to 45’
Placement of guardrail on frontslopes
8:1
Acceptable to 25’
26’ to 45’
steeper than 4:1 not recommended.
9:1
Acceptable to 26’
27’ to 45’
Cost of rubrail to be included in the
10:1
Acceptable to 27’
28’ to 45’
contract unit price for guardrail.
LOCATIONS ON FRONT SLOPES
GUARDRAIL LOCATION-DETAIL K
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
07/01/05
14 of 23
Index No.
400
16d Galvanized Nail (Timber And
POSTS
REFLECTOR NOTES
Non-Form Fit Plastic Blocks Only)
Post bolt hole in timber and plastic blocks to be centered (‘ 1/4 ").
Timber 6"!8"!14" (Nominal) For
1. Reflectors shall conform to Section 993 of the Standard Specifications.
Reflector
Reflector
2. Reflector color (white or yellow) shall conform to the color of the near
Timber
lane edgeline.
Cutaway View
REMARKS
OFFSET BLOCKS
W-Beam And 6"!8"!22"
All timber offset blocks shall be dressed on all four sides (S4S).
(Nominal) For Thrie-Beam
One 16d galvanized nail per block is to be used to prevent rotation
Recycled Plastic (See Notes)
of block (see detail left).
Timber 6"!8"!14" (Nominal) For
Same as above for timber and plastic blocks except that form fit
W-Beam And 6"!8"!22"
plastic block holes align with holes in steel posts and do not
(Nominal) For Thrie-Beam
require nails.
16d Galvanized
Nail
3. Face of rail bolt, screw, rivet or bracket mounted reflectors shall not be
Steel W6x8.5,
used in lieu of adhesive mounted reflectors.
Direction Of Traffic
SECTIONAL
W6!9 Or 6" C
4. Post mounted reflectors approved on the ’Qualified Products List’ may be
FACE VIEW
used by FDOT Maintenance to replace damaged or missing reflector in
VIEW
Timber Or Recycled
Plastic Block
Recycled Plastic (See Notes)
a continuous run of existing post mounted reflectors. Adhesive and post
Reflectors shall be centered in the channel of
mounted reflectors shall not be intermixed in a continuous run of guardrail.
W-beam and in the top channel of thrie-beam.
5/8 "\!1 1/2 " long hex head bolts with full length thread and nuts
Steel W6x8.5,
W6!9 Or 6" C
TIMBER POST
STEEL POST
(2 Reqd.) and 5/8 " plain round washers (4 Reqd.) for mounting
(Steel Modified Thrie-Beam)
steel block to post. Bolts are to be installed in opposite holes,
top and bottom.
5. The cost for reflectors shall be included in the contract unit price for
REFLECTOR MOUNTING
16d Galvanized Nail Driven After Post Bolt Pull-Up, Single
W14!22!17" (M14!18!17")
Guardrail.
And Double Face Guardrail, Single Face Guardrail Shown
Notes: 1. Timber and recycled plastic offset blocks of identical size and shape can be intermixed within
(16d Nail Between Blocks For Multiple Offset Blocks).
200’**
100’
50’
75’
a run of rail.
25’
16d NAIL FOR PREVENTION OF OFFSET BLOCK ROTATION
2. Recycled plastic offset blocks shall meet the passing evaluation criteria for Test Level 3 of
NCHRP 350. The blocks shall be tested as a component in a semi-rigid guardrail test article
under full scale crash test conditions. The blocks shall be in conformance with Sections 536
Install Pipe Rail Over Pipe Rail End Fixture And Thru-bolt
and 972 of the Specifications and be included on the Qualified Products List. W-Beam blocks
With 1/2 "!3 1/2 " Long Hex Bolts And Nuts With 1/2 " Plain
Note: Adjustment in spacing may be required to fit exact guardrail lengths as directed by the Engineer.
Round Washers Under Heads And Nuts (2 Reqd.)
shall be 14" in height and thrie-beam blocks shall be 22" in height. The blocks shall be capable
For minimum installations (length 62.5’) provide one reflector at each end and at approximate center.
of providing a 7 1/2 " (Min.) offset.
(Upset Threads After Tightening)
Pipe Rail
Pipe Rail
**For curves greater than 2^ the spacing shall be reduced to 100’ through the curve.
End Fixture
PERMISSIBLE POST AND OFFSET BLOCK COMBINATIONS
REFLECTOR SPACING
Steel Post
Offset Block
ADHESIVE REFLECTORS-DETAIL M
Timber Post
Steel Modified Thrie-Beam Offset Blocks
(See Detail Left And Table Above)
Guardrail Beam
| Post Bolt
M14x18 or W14x22
1’-9"
20"‘ R
W-BEAM
2"
6"
1"
Steel Guardrail Post
1"
3"
Steel Guardrail Post
Or Bike Path
2’
4’
Std.
1’-9"
1’-9"
Std.
3’-10"
Std.
Varies
(3’ Min.)
THRIE-BEAM
W-BEAM
THRIE-BEAM
Restrictions Prohibit Normal Shoulder Extension
Pedestrian Way
Travel Way
*
*Front Slope When Right Of Way, Environmental Or Other
Tightening)
3"
MODIFIED THRIE-BEAM
| Post Bolts
| Post Bolt
4’-2"
1"
5/8 " Plain Round Washers
6"
STEEL MODIFIED THRIE-BEAM
OFFSET BLOCK
Hex Bolt And Nut With
(Upset Threads After
2"
All Holes Are 13/16 "\
With 5/8 "!2" Long
See Right)
75^
1"
SIDE VIEW
Galv. Pipe Rail
3/4 "\ Bracket Hole
(For Mounting
1/4 "
Steel Pipe
2" Nom. \ Sch. 40
1 1/4 "
Pipe Rail
3’-10"
(Upset Threads After Tightening)
ELEVATION
1 1/2 "\ Sch. 40
TRAFFIC FACE
With 1/2 " Plain Round Washer
Pipe Rail End Fixture
Gutter
6"
POST FACE
With 1/2 "!3 1/2 " Long Hex Bolt And Nut
1’-9"
Lip Of Gutter
W-BEAM WITH RUBRAIL
| Post Bolts
40^
5/8 "\ Bracket And Pipe Holes
Std.
Pipe Rail
Top Of Curb
PICTORIAL
Std.
As Specified, See Sheet 14
For Additional Information)
Varies
(3’ Min.)
10"
Guardrail Beam
1/4
(On One Or Both Sides
*
17"
7"
Steel Post
5 7/8 "
Be Timber Only
12"
By Location In The Plans
This Post Can
(Upset Threads After Tightening)
Rubrail When Called For
1 1/8 "
4’-2"
1 1/8 "
Round Washers Under Heads And Nuts (2 Reqd.)
2’
1/2 "!7" Long Hex Bolts And Nuts With 1/2 " Plain
2 1/4 "
| Panel Bolt
| Post Bolt
1’-9"
Structural Shape
2 1/4 "
Std.
Attach Pipe Rail End Fixture To Post With
3’-11"
PLAN
2 1/2 "!2"! 1/4 "!4" Long
1 1/4 "
1 1/8 " Offset From | Of Guardrail Post
Angle Bracket (Galvanized)
VIEW A
All Holes Shall Be 5/8 " \
MOUNTING HEIGHTS ON SHOULDERS AND IN MEDIANS
4"
Edge Of Traffic Lane
VIEW B
Galvanize After Drilling And Welding
STEEL POST
PIPE RAIL END FIXTURE
DOUBLE FACED GUARDRAIL
SINGLE FACED GUARDRAIL
1 1/4 "
6’ Or Greater
PIPE RAIL MOUNTING
Edge Of Shoulder Pavement
Desirable
SECTION
Edge Of Traffic Lane
Shoulder
Line
4’
Varies
NOTES
1. Pipe Rail required on steel guardrail posts when pedestrian ways and bikeways are located 4’ or less from
1’-9"
Y
1’-9"
2. When guardrails with timber posts are located with the back of posts 4’ or less from the near edge of the pedestrian
1’-9"
back of the posts. Begin and end the pipe rail in accordance with this detail.
6"
0.06 Std.
way or bikeway, the bolt ends will require one of the following treatments:
(a) Trimming back flush with the face of nut and metalizing or
(b) Use of post bolts 15" in length with the washers and nuts counter sunk into sinks 1" to 1 1/2 " deep or
(c) Use of post bolts 15" in length with sleeve nuts and washers.
Y
(Maximum Speed 50 mph)
3. The cost for Pipe Rail, mounting components and installation shall be included in the contract unit price for
Y=6" Or Greater
Y=Less Than 6"
Shoulder Gutter
guardrail. Bolt end treatment for timber post shall be included in the contract unit price for guardrail.
FOR LOCATIONS USED BY PEDESTRIANS OR CYCLISTS
LOCATION AT CURB & GUTTER SECTIONS-DETAIL L
PEDESTRIAN SAFETY TREATMENTS
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
07/01/05
15 of 23
Index No.
400
A
B
C
Std.;
s - 5’
in.)
4’ M
arie
idth V
alk (W
6’-6"
Sidew
Sidewalk Without Utility Strip
6’
*
This Standard Post Must
21’-6" (Curb And Gutter Flare)
37’-6" Guardrail Flare
Used In Guardrail Ahead
10’
13’
3’
Be Timber When Steel Post
Curb Transition
3’
10’
Curb And Gutter Type F
(MELT Shown)
45’
B
A
PLAN
0’-9" (MELT)
guardrail posts are 4’ or less from the near edge of
3’
Transition
35’-4" Drop Curb
C
a pedestrian way or bikeway and post bolt treatment
6’-8"
Flared End Anchorage Assembly
See Detail L
*Safety pipe rail is required when the back of steel
20’ R
2" Misc. Asphalt
1’-3 1/2 " (SRT-350 & REGENT)
2’-3 1/2 "(FLEAT-350)
2’-3 1/2 " SRT/HBA-6 POST
Sidewalk (Varies)
is required when the back of timber posts are 4’ or
less from the near edge of a pedestrian way or
2" Misc. Asphalt
1’-9"
bikeway; see ’PEDESTRIAN SAFETY TREATMENTS’.
0.02 (Std.)
Curb flare shall follow guardrail flare, see elsewhere
in this Index for additional guardrail flare information.
Note: For Proprietary End Treatments See the Qualified Products List.
SECTION CC
1’-1" (MELT)
1’-8 1/2 " (SRT-350 & REGENT)
Sidewalk (Varies)
2" Misc. Asphalt
0.02 (Std.)
SECTION BB
4’
Sidewalk (Varies)
1’-9"
1’-7" SRT/HBA-6 POST
1’-9"
1’-7" (FLEAT-350)
0.02 (Std.)
2" Misc. Asphalt
SECTION AA
APPROACH TREATMENT FOR CURB AND GUTTER
DETAIL Q
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
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07/01/05
16 of 23
Index No.
400
25
1
2
3" Min.
2’-3 1/2 "
^ ‘ For End
2’-6"
Anchorage Type
Neutral Axis
Contour To Fit
1’-3" R Standard
(10 1/2 " R When Used
30^
For End Anchorage
3 3/8 "
Lap
4 1/4 "
"R
10"
3 3/8 "
Metalizing Permitted
Direction Of Traffic
/4
61
Over Beam
1’-9" or 2’-6"
3"
MELT and CRT.
Field Bend With
Type MELT)
4 1/4 "
Trailing Beam,
8 1/2 "
2"
Terminal Section
Or End Shoe
7 1/2 "
Varies
3/4 "\ Hole For Use
2"
With End Anchorage
4"
4 1/4 "
4"
4 1/4 "
Contour To Fit
3"
Over Beam
3/4 "!2 1/2 " Slot
Type MELT
4 1/4 "
4 1/4 "
2"
End Section Or
End Shoe
15/16 "\ Hole (Typ.)
29/32 "!1 1/8 " Slots
(4 Reqd.)
30^
|
1’-4 1/8 "
Approach Beam,
Under Nut
12 1/4 "
With 5/8 " Steel Washer
|
12 1/4 "
With Post Bolt And Nut
1’-4 1/8 " Approx.
12 1/4 "
3 1/2 " 3 1/2 "
3/4 "!2 1/2 " Slot
3/4 "!2 1/2 " Slots
8 1/2 "
2"
7 1/2 "
Varies
(Typ.) (8 Reqd.)
12 1/4 "
(Typ.) (4 Reqd.)
(Typ.) (8 Reqd.)
Note: 5/8 "\ Steel washer required with splice bolts
W-BEAM RAIL SPLICE
SPECIAL END SHOE
ROUNDED END SECTION
FLARED END SECTION
12"
3"
29/32 "!1 1/8 " Slots
(Typ.) (4 Reqd.)
6"
3/16 " Base Metal
1 1/2 "
1’-4 1/8 "
29/32 "!1 1/8 " Slots
29/32 "!1 1/8 " Slots
1"\! 1/16 " Deep
Thickness
BUFFER END SECTION
Recess (Both Sides)
1 1/4 "
11/16 "
12 1/4 "
1 3/4 "
3/4 "!2 1/2 " Slot
5/16 "
1 3/8 "
5/8 "
Note: For beam washer requirements on end terminals, see individual
end anchorage assembly details. Washers are to be used where
necessary to accomplish alignment or where the posts bolt head
15/16 "
7/8 "
1 3/32 "
11/16 "!1" Slot
L
7/32 "
5/8 " MODIFIED HEAVY
15/16 " R
Note: For application information see individual
HEX NUT (RECESSED NUT)
1 3/8 " R
end anchorage assembly details.
shows tendency to pull through the rail slot. Washers installed on
guardrail, between end anchorages, prior to July 1, 1990 may remain
W-BEAM BACK-UP PLATE
29/32 "!1 1/8 " Slots
^
55
in place until the guardrail is relocated or until repairs require
removal and reinstallment of a post bolt.
LENGTH
(In.)
1 1/8 "
THREAD
L
(RECTANGULAR PLATE WASHER)
APPLICATION
| Of Beam
(Min.) (In.)
BEAM WASHER
15/16 " R
requirements of ASTM A449 (Type 1) with heavy hex nuts and washers. All other
hex bolts shall conform to the requirements of ASTM A563. Bolts, nuts and washers
Post Bolt - Timber Or Recycled Plastic Offset
9
10"
1 21/32 "
2 1/4 "
nuts used for jam nuts.
2 5/16 "
1 3/4 "
shall be hot dip galvanized. Heavy hex nut may be used in lieu of hex nuts and hex
Block(s) On Steel Post
4"
55
" Base
64
As An Option, A Single 25"*
^
Metal Thickness
Long Post Bolt May Be Used
18"
4"
25"*
4"
3/8 " R
HEX BOLTS AND NUTS
1 1/16 "
Post Bolt - Single Faced Guardrail Timber Posts
^
Single Or Double Faced Guardrail
55
^
Rail Splice Bolt
25
Full Length
3 1/4 "
HS Hex bolts for THRIE-BEAM TERMINAL CONNECTORS shall conform to the
1 1/4 "
11/16 "
12 1/4 "
3/4 "!2 1/2 " Slot
10^ (‘1^)
Sheet Thickness
Post Bolt - Double Faced Guardrail Timber Posts
Tolerance (-0,+ 1/16 ")
OFFSETS (Ft.)
Double Faced Guardrail Steel Posts
Measured From Face Of Guardrail To
Special bolts having lengths of 10" or greater shall have a
Note: The round washer is not intended for use under the recess nut for
the beam to beam rail splice. The washer is required under the recess
For applications where special bolts having lengths greater
bolt nut for connecting the beam to the timber post and offset blocks;
rod (field cut to length). A hex nut and beam washer shall
for connecting the beam to steel posts with timber offset blocks; under
be used at the guardrail face with no more than 3/4 " of the
the hex bolt head for securing the beam anchor plate to the beam; and,
threaded rod projecting beyond the top of the nut. The
for general guardrail connections by 5/8 "\ hex bolts and nuts. For
projecting thread on both ends shall be distorted to secure
supplemental information see BEAM ANCHOR PLATE, PERMISSIBLE POST
the nuts, and both ends of the threaded rod metalized with
AND OFFSET BLOCK COMBINATIONS, individual end anchorage assembly
organic zinc-rich coating.
SINGLE BEAM
NESTED BEAMS
SPACING
(Ft.)
W-Beam
Thrie-Beam
W-Beam
W-BEAM
Thrie-Beam
6’-3"
4’
3’-3"
N/A
N/A
3’-1 1/2 "
3’
2’-8"
2’-8"
2’-4"
1’-6 3/4 "
N/A
N/A
2’-4"
2’
Note: The values shown should be utilized unless changes
are supported by imperical validation. Those desiring
details, SPECIAL STEEL GUARDRAIL POSTS, SPECIAL END SHOE, W-BEAM
5/8 " STEEL WASHER
Front Of Above Ground Rigid Hazard
POST
than 25" are required, the Contractor may use a 5/8 "\ threaded
CONNECTOR details.
3 1/4 "
thread length of not less than 4".
nut for connecting the beam to the special end shoe; under the post
RAIL SPLICE, THRIE-BEAM RAIL SPLICE, and THRIE-BEAM TERMINAL
3 3/16 "
* Use of the 25" AASHTO-AGC-ARTBA standard length post bolt
to develop offset values from the simulated deflection
on double faced guardrail that results in the bolt projecting more
values shown in Table 5.4 of the AASHTO Roadside
than 3/4 " beyond the face of the nut after pull-up shall be trimmed
Design Guide are cautioned to proceed only if back-
to 3/4 " reveal and metalized with organic zinc-rich coating.
ground in the table development is understood.
5/8 " OVAL SHOULDER BUTTON HEAD BOLT
MINIMUM OFFSET FOR
SINGLE FACED GUARDRAIL (Ft.)
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
07/01/05
17 of 23
Index No.
400
5/8 " Steel P
L
8"
2"
Hex Nut
6"
4"
4"
4"
2"
Hex (Jam) Nut
3/4 "\ Holes
1 5/8 "
1"\ Anchor Rod And
1 1/8 "\ Hole
15/16 " R
Cable Assembly
3/4 "\ Galvanized Cable (6!19)
1 3/4 "
1 1/4 "
4"
3/8 " R
BREAKAWAY TERMINAL
POST SLEEVE
8"
Anchor Plate
1 15/16 "
Swage Fitting
3/8 "
W-Beam
(8 Reqd.)
(2.067" ID, 2.375" OD)
5 1/4 "
3/8 "
Round Washers Under Heads
16"
2" Nom. Dia.
5"
6’-6"
2 11/16 "
Bolts And Nuts With Plain
(Typ.) (8 Reqd.)
Galvanized (Both Ends)
7"
5/8 "-11!1 1/2 " Long Hex Head
3/4 "\ Holes
1"\!7" Stud, Full Threads,
9
Washer (2" OD, 1 1/16 "ID,
64
1 5/8 "
3/8 "!2 3/4 "!3" Steel End Plate
Swage Connected To Studs
35^
Thick)
Shaped Steel Plate
With 1 1/8 " Center Hole
3/4 "\ Holes
23
(16"!12 9/16 "! 3/16 ")
BEARING PLATE
/8 "
Three
Note: Cable assemblies shall be in accordance with the specifications of
1/4
5 1/2
33
/8 "
Sides
AASHTO-AGC-ARTBA ’A Guide To Standardized Highway Barrier Hardware’
Cable Anchor Assembly FCA01. An additional cable assembly 9’ in length with a
2 7/8 "
12"
CABLE ASSEMBLY
4"
4"
2"
BEAM ANCHOR PLATE
4"
2"
3/4 "\
12"
Hole
8"
3 13/16 "
2 3/8 "
3 1/2 "
7 5/8 "
12"
6"
2"
21"
3 13/16 "
9"
24"
3/4 "\ Holes
9"
4"
1 1/2 "
20" (‘ 1/4 ")
12"
3/4 "!2 1/2 " Slot
4"
3 1/2 "
7 5/8 "
2 3/8 "
3 13/16 "
6"
18"
3/4 "\ Holes
SECTIONS
BACK VIEW
swaged fitting on one (1) end is required for each end anchorage assembly Type CRT.
8"
12"
9"
5/8 " Plate For Bridge Traffic Railing Barrier
24"
1 1/4 " Plate
1/4 " Plate For Barrier Walls
9"
1/4 " Plate For All Applications
See Detail J For Application
9"
6"
SPECIAL END SHOE
THRIE-BEAM TERMINAL CONNECTOR
24"
1/4 " SteelLP, Galvanized
Back-up plate required behind rail elements at
intermediate (non-splice) posts when steel
SOIL PLATES
offset block used.
FILLER PLATE
All Holes 1"\ Except As Shown
GALVANIZED STEEL BACK-UP PLATES FOR CONNECTING SPECIAL END SHOES AND TERMINAL
WALLS
CONNECTORS TO CONCRETE BRIDGE TRAFFIC RAILING BARRIERS AND CONCRETE BARRIER
THRI-BEAM BACK-UP PLATE
6’-3"
3’-1 1/2 "
2"
4 1/4 "
4 1/4 "
3’-1 1/2 "
2" Min.
2" Min.
4 1/4 "
4 1/4 "
2"
2’-6"
3"
3 1/4 "
4 1/4 "
3/4 "\ Holes
(2 Reqd.)
Trailing Beam, W-Thrie
Beam Transition Section
^
55
15/16 "\ Holes (Typ.)
| Post Bolt Slot
(7 Reqd.)
4"
4 1/4 "
4 1/4 "
3"
3/4 "!2 1/2 " Post Bolt Slots (Typ.)
29/32 "!1 1/8 " Splice Bolt Slots (Typ.)
3/4 "!2 1/2 " Post Bolt
Slots (2 Reqd.)
W-THRIE BEAM TRANSITION SECTION
1 21/32 "
29/32 "!1 3/4 " Slots
Rotated 50^ (Typ.)
(12 Reqd.)
3 1/4 "
55
^
15/16 " R
3/4 "!2 1/2 " Slots (2 Per Beam)
Note: 5/8 "\ steel washer required with splice bolts
With Post Bolts And Nuts
2 1/4 "
With 5/8 " Steel Washers
THRIE-BEAM TERMINAL CONNECTOR
^
55
2 3/8 "
Under Nuts (2 Reqd.)
25
^
3/8 " R
1 1/16 "
10^ (‘1^)
3 3/16 "
Tolerance (-0,+ 1/16 ")
Sheet
Thickness
4"
Or Terminal Connector
1 1/8 "
29/32 "!1 1/8 " Slots
3 13/16 " 3 13/16 " 3 13/16 " 3 13/16 "
15/16 " R
About |
4 1/4 "
20" (‘ 1/4 ")
Symmetrical
Lap
3/4 "!2 1/2 " Slots
20" (‘ 1/4 ")
2"
12 1/4 "
Neutral Axis
20"
3 3/8 "
Neutral Axis
3 1/4 "
Approach Beam, W-Thrie
Beam Transition Section
Or Terminal Connector
THRIE-BEAM
2006 FDOT Design Standards
Direction Of Traffic
THRIE-BEAM RAIL SPLICE
GUARDRAIL
Last
Revision
Sheet No.
07/01/05
18 of 23
Index No.
400
| W8!18 Post
| W8!18 Post
6"
17"
7"
7"
7/8 "\!10" Galvanized
5 1/2 " (+0,- 1/4 ")
7 1/2 " (+0,- 5/16 ")
5 1/2 "
Hex Nuts (8 Reqd.) &
Standard Washers
7/8 "!14"!11"
(4 Reqd.)
Base Plate
7"
14"
W8!18 Post
1’-9"
Anchor Bolts (4 Reqd.),
3/4 "!1 1/2 " Slotted Hole
7"
7 5/8 "*
Varies
3/4 "\ Hole
4"
3/4 "\ Holes
3"
3/4 "!2 3/4 " Slot
TS 8"!6"! 3/16 "
Galvanized
In End Post Only)
(See Note 3)
TOP VIEW
SIDE VIEW
3 1/2 "\ Hole
(2 Holes Each Post)
7/8 "\ Hole
2 1/2 "
FRONT VIEW
Treated
3’-6 1/2 "
Base Plate
6’
S4S And
(Install Breakaway
Terminal Post Sleeve
Anchor Hole
5’
2 3/8 "\ Hole
1’-4"
7"
2"\ Recess
18"
| Slotted Hole
Min.
1"
Adjusting Nuts
1"\ Holes
FOR REPLACEMENT OF EXISTING W8!18
GUARDRAIL POSTS ON APPROACH SLABS AND BRIDGES
Open End
* Additional slotted hole required when mounting thrie-beam guardrail
SIDE VIEW
FRONT VIEW
SIDE VIEW
FRONT VIEW
For Use In Combination With Steel Tube
| W6!9 Post
SIDE VIEW
Short Timber Breakaway Post
STEEL TUBE
Note:
SPECIAL TIMBER GUARDRAIL POSTS
6"
6"
6"
3/4 "\!10" Galvanized Anchor
Bolts (4 Reqd.), Hex Nuts
(8 Reqd.) & Standard Washers
1/2 "!12"!12"
4"
Base Plate
1 1/8 "
(See Note 3)
1 1/8 "
7"
0.170"
0.75"
7"
7"
Anchor Hole
0.25" R
8"
6"
Nom.
Nom.
12"
12"
All Holes 13/16 "\
13/16 "\ Hole When
Rubrail Called For
*
1. See Index No. 402 for special steel posts required for construction and repair of guardrail transitions
3/4 "\ Hole
(When Thrie
Beam Post)
6’-6"
6’-6"
7 5/8 "
Flanges (Total 4 Holes)
NOTES: (SPECIAL STEEL POST)
3/4 "\ Hole
(Centered ‘ 1/4 ")
2 Holes Front And Back
6’-9"
OR OTHER STRUCTURE PRECLUDES DRIVEN POST INSTALLATION
6’-6"
6’-6"
FOR CONSTRUCTION OF GUARDRAIL WHERE CULVERT, PIER FOOTING
12"
7 5/8 "
10"
VIEW
7"
Existing Structure
SIDE
PROJECTION
1 1/8 "
Min.
1"
2"\ Recess
7"
Adjusting Nuts
4.340"
1 1/8 "
4"
4"
5 7/8 "
(4 Reqd.)
5.875"
See Notes Nos. 2 thru 5 Below.
FRONT VIEW
For Use In Combination With
CRT TIMBER POST
SHORT TIMBER BREAKAWAY POST
(6’-6" When Used As Part Of BEST System)
Nom.
11"
5 1/2 "
6"
8"
8"
Nom.
1"
1 3/8 "
3/4 "\ Hole
(When Rubrail
to bridge traffic railing barrier retrofits on existing bridges. See Structures Index Nos. 470 through 476
Required)
for steel posts required to construct traffic railing barrier retrofits on existing bridges.
S4S And Treated
2. Either anchor bolts, concrete wedge anchors or approved Adhesive-Bonded Anchors for Structural
Applications may be used.
Anchor bolts, wedge anchors and adhesive anchors shall have a minimum tensile strength of 60,000 psi and
galvanized in accordance with ASTM A153 (stainless steel components may be substituted but components
plated in accordance with ASTM B-633 are not acceptable). Adhesive anchor rods shall be equal in diameter
to that detailed for anchor bolts. Wedge anchors are to be installed in accordance with the manufacturer’s
SIDE VIEW
W-BEAM
* 13/16 "\ Hole When
Rubrail Called For
THRIE-BEAM
THRIE-BEAM WITH
WITH STANDARD
STEEL MODIFIED
OFFSET BLOCKS
THRIE-BEAM
SIDE VIEW
Note: 6"-C steel posts are to face the
OFFSET BLOCKS
recommendations, assuming 3,000 psi compressive strength for concrete. Wedge anchors shall also meet the
following requirements: (a) tensile load each anchor: approach slabs 14,000 lbs.; other structures 8,000 lbs.
(b) shear load each anchor: approach slabs 15,000 lbs.; other structurers 7,800 lbs.
3. Posts are to be plumbed by adjusting nuts or mortar seating. Posts installed using anchor bolts and adhesive
anchors are to be set with adjusting nuts as detailed, unless the Engineer approves the use of mortar
seating in lieu of adjusting nuts. Posts installed using wedge anchors are to be set with mortar seating.
Base plates shall be grouted with neat finish.
FRONT VIEW
FRONT VIEW
FRONT VIEW
FRONT VIEW
same direction in any continuous run
of guardrail. Posts to be galvanized
in accordance with ASTM A123.
SIDE VIEW
FRONT VIEW
All Holes Shall Be 13/16 "\ Identical Front And Back Flanges
6"-C STEEL POST
Note: W6!8.5 or W6!9 steel posts may be either rolled or welded structural shapes
TIMBER POST
conforming to or exceeding the design properties of ASTM A6/A6M. Welding
shall be in accordance with the requirements of ASTM A769/A769M. Posts
shall be cut to length and the ends seal welded between web and flange before
galvanizing. Posts to be galvanized in accordance with ASTM A123.
4. Adhesive-Bonded Anchors for Structural Applications shall comply with Section 937 and be installed in
accordance with Section 416. Drilled hole diameter shall be in accordance with the manufacturer’s instructions.
W6!8.5 OR W6!9 STEEL POST
5. Anchor holes and recesses shall be drilled; wedge anchor holes are to be drilled in accordance with the
manufacturer’s specifications. Encountered reinforcing steel shall be drilled through. Holes shall be thoroughly
cleaned when setting bolts and anchors and dry when setting wedge anchors.
STANDARD TIMBER AND STEEL GUARDRAIL POSTS
6. Steel post and base units shall be galvanized in accordance with ASTM A123. Any damaged galvanized areas
are to be metalized in accordance with Section 562 of the Standard Specifications.
SPECIAL STEEL GUARDRAIL POSTS
GUARDRAIL POSTS
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
07/01/05
19 of 23
Index No.
400
Only Single Special Post Shown
One Of Two Special Posts
Max. Variation In Location Of
One Of Two Special Posts
NUMBER OF SPECIAL POSTS
NUMBER OF SPECIAL POSTS
(Single Offset Block)
(Double Offset Block)
Min. 2
Min. 1
Min. 1
Max. 2
Max. 2
Max. 2
Basis Of Estimate For Payment 2
Basis Of Estimate For Payment 1
CURB INLET TYPE 2
CURB INLET TYPE 1
Timber Or
1’-9"
Max. Variation In Location Of
One Of Two Special Posts
Steel Posts
At Face Of Rail
Max. Variation In Location Of
One Of Two Special Posts
2"
Max. Variation In Location On
For Single Special Post
(W6!9 Post Shown)
Misc. Asphalt
Varies (2’ Min.)
Max. Variation In Location
Varies (4’-3" Min. For W-Beam, 4’-7" Min. For Thrie-Beam)
(Normal Location For Special Post)
Foam Wrap
Class ~ Conc.
(Do Not Add
Reinf. Steel)
Only Single Special Post Shown
(Normal Location For Offset Block)
Max. Variation In Location
Max. Variation In Location
3"
For Single Special Post
Of Special Post
SECTION
Max. Variation In Location Of
Max. Variation In Location Of
One Of Two Special Posts
One Of Two Special Posts
15" For Steel Post Or
17" For Timber Post
NUMBER OF SPECIAL POSTS
(Single Offset Block)
NUMBER OF SPECIAL POSTS
Min. 1
Min. 1
Min. 1
(Double Offset Block)
Max. 1
Max. 2
Basis Of Estimate For Payment 1
Max. 1
Basis Of Payment 1
To Facilitate Post Replacement Install With
3/16 " Plastic Foam Sheet On All Sides, Below
The Surface Of The Miscellaneous Asphalt Pavement.
Foam Or Timber Block-Out
For W6!9 Or 6" C Posts
PLAN
(SQUARE OPTION)
15" For Steel Post Or
17" For Timber Post
CURB INLET TYPE 4
CURB INLET TYPE 3
Foam Wrap And Foam Or Timber
Max. Variation In Location Of Special Post
Max. Variation In Location Of
Max. Variation In Location Of
One Of Two Special Posts
One Of Two Special Posts
NUMBER OF SPECIAL POSTS
Block-Outs Same As For Square
Option Above.
NUMBER OF SPECIAL POSTS
Min. 1
Min. 2
Max. 1
Max. 2
Basis Of Payment 1
Basis Of Payment 2
PLAN
(ROUND OPTION)
Note: For line post applications only, i.e., not to be used
with breakaway post applications nor be used to modify
End Anchorage Assemblies Type ~~.
TO BE USED PRINCIPALLY OVER SHALLOW UTILITIES
ENCASED GUARDRAIL POST
CURB INLET TYPE 6
CURB INLET TYPE 5
Notes:
LEGEND
1. The locations shown for special posts mounted on inlets are to be used as guidelines
for positioning the posts and for estimating the number of required posts.
3. Variations shown for the locations of special posts mounted on inlets are established from
standard post spacing (6’-3"); clearance of standard posts from inlets (4" min.); use
of single and double offset blocks on standard posts adjacent to the inlets; optional
2. Special posts and their anchorages mounted on curb inlets shall be in accordance with
special steel guardrail posts Sheet 19, and paid for under the contract unit price for
Special Guardrail Post, EA.
Variation In Location Of Special Post:
Single Offset Block (s) On Adjacent Standard Post (s)
flange mountings; and, concrete anchor edge distances (2" for grouted and 3 3/4 " for
expansion anchors). The number of posts and their locations may vary by reducing post
spacing and adjusting the length of rail panel (s).
Expanded Location By Using Double Offset
Blocks On Adjacent Standard Post (s)
4. Encased guardrail posts shall conform in section to standard timber and steel posts, and
be paid for under the contract unit price for Special Guardrail Post, EA. Payment
shall include cost of foam wrap and concrete encasement.
SPECIAL POST LOCATIONS ON CURB INLETS
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
00
20 of 23
Index No.
400
Misc. Asphalt Pavt. 10’ Approach End Guardrail
Soil Plate
Anchor Plate
Hex Nut & Hex (Jam) Nut
And Washer Each End
Cable Assembly
Misc. Asphalt Pavt.
5/8 "!25" Long Post Bolt And Nut With
Beam Washer Under Head And Under Nut
10’ Approach End Guardrail
Buffer End Section
(Timber Post And Block)
Misc. Asphalt Pavt.
6’ Trailing End Guardrail
Short Timber Breakaway Post
TOP VIEW - DOUBLE FACE
Approach Rail (Position Varies)
Buffer End Section
For Approach End Anchorage
Steel End Plate, Washer, Hex
5/8 "!18" Long Post Bolt And Nut With Beam Washer
Under Head And 5/8 " Plain Round Washer Under Nut
(Timber Post And Block)
5/8 "!10" Long Post Bolt And Nut
Nut And Hex (Jam) Nut
With Beam Washer Under Head And
5/8 " Plain Round Washer Under Nut
Anchor Rod
Cable Assembly
Position Varies
Turnbuckle (6")
See Note Below
(Rounded End Section When Guardrail
30"
Flared End Section
Anchor Plate
Located Adjacent To Pedestrian Way
Or Bikeway)
Hex Nut & Hex (Jam) Nut
Flared Or Rounded End Section
Trailing Rail
And Washer Each End
Soil Plate
On Trailing End Section
Concrete Anchor Block
30"
Short Timber Breakaway Post
TOP VIEW - SINGLE FACE
TOP VIEW
Misc. Asphalt Pavt.
End Measurement For Guardrail Payment
(Block To Be Positioned To
Suit Anchorage Alignment.
Only One Anchorage Required.
6’ Trailing End Guardrail
Anchorage To Be On Approach
Rail When Both Approach
End Measurement For Guardrail Payment
And Trailing Guardrails Are
4’-9"
6’-3"
6’-3"
6’-3" To Next Post
12"
Connected.)
16"
Standard Post
Anchor Plate
16"
Short Timber
End Section
Anchor Plate
Misc. Asphalt Pavt.
Misc. Asphalt Pavt.
Turnbuckle (6")
See Note Below
Timber Or Steel Post With Timber
3’-6" Std.
Block May Be Used, Timber Post And
Timber In Steel Post Run Of Rail
Cable To Be Drawn Taut
Adjacent To Pedestrian Way
With Hand Wrench Prior
Or Bikeway, To Provide Anchorage
To Setting Jam Nuts
Post Sleeve
Two 8d Nails To
Prevent Rotation
1’-9"
Block Shown (This Post Must Be
No Cover Required
30"
Breakaway Post
1’-9"
12"
1"\ Galv.
Anchor Rod
Galvanized 4"!4"! 3/4 " Plate
Beveled Washer And Hex Nut
1 1/2 " ID Pipe Sleeve
Bearing Plate
For Pipe Rails As Required)
Misc. Asphalt Pavt.
FRONT VIEW
Turnbuckle to be used only for guardrail that is reset vertically. The existing anchor rod (1" or 1 1/4 " Dia.) shall be field cut,
threaded 4" on each end, and, metalized in accordance with Sections 562 and 971 of the Standard Specifications. The cost
5/8 "!10" Long Bolt And Nut With 5/8 " Plain
Round Washer Under Head And Nut
5/8 "!18" Long Bolt And
for cutting, threading, metalizing and the turnbuckle shall be included in the contract unit price for Reset Guardrail, LF.
Nuts With 5/8 " Plain Round
Washer Under Head And Nut
The payment for the items of End Anchorage Assembly Type ~~ shall be full compensation for furnishing and installing the
(2 Req’d.)
Beam Anchor Plate, Anchor Rod, Pipe Sleeve, Anchor Block, either Flared, Rounded or Buffer End Section, and the necessary
hardware.
Soil Plate
18"!24"! 1/4 "
Note: Steel tubes and attached soil
plate may be installed by:
CONCRETE ANCHOR BLOCK OPTION
Steel Tube
(1) Excavating, backfilling and
compacting to provide full
passive soil resistance to
TYPE ~~ NOTES
all surfaces of the tube and
soil plate.
1. Unless specified in the plans, the contractor can supply either the cable anchor option or the
concrete anchor block option.
(2) Driving steel tube and soil
plate as a unit with a dummy
timber post to prevent damage
to breakaway post.
2. Type ~~ end anchorage assemblies are approved for all speeds and are intended for use as:
(a) trailing end anchorages for single face free standing guardrail systems;
(b) approach end anchorages for single face free standing guardrail systems when end anchorage
is located outside of the clear zone; and,
FRONT VIEW
(c) both approach and trailing ends of double face guardrail systems.
Crash cushions shall be constructed at or in lieu of approach Type ~~ end anchorages located
The payment for the items of End Anchorage Assembly Type ~~ shall be full
inside the clear zone.
compensation for furnishing and installing either the Round or the Buffer
End Section, the Beam Anchor Plate, Cable Assembly, Pipe Sleeve, SoilPlate,
Steel Tube, Bearing Plate, Short Timber Breakaway Post, Offset Blocks and
the necessary hardware.
3. These end anchors are to be paid for under the contract unit price for Guardrail, End Anchorage
Assembly (Type ~~), EA as called for in the plans or by permit.
CABLE ANCHOR OPTION
END ANCHORAGE ASSEMBLY TYPE
~~
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
07/01/05
21 of 23
Index No.
400
End Measurement For Guardrail Payment
MODIFIED ECCENTRIC LOADER TERMINAL NOTES
2
1
1. The MELT is applicable for design speeds up to 45 mph. The MELT is intended for use as an approach end guardrail
1 : 15 To No
rmal Shoulde
r Break Point
10’
4
anchorage for shoulder guardrail. Its alignment is a flare from the normal guardrail alignment with an effective length of
37.5’ including three standard W-beam panel outside of any standard guardrail, guardrail transitions or other special
treatments.
3’
3
Shoulder Line
5
2. This standard drawing is produced by the Florida Department Of Transportation solely for use by the Department and its
6
assignees. This standard drawing provides the general graphics and information necessary to field identify component parts
re Line
Misc. Asphalt Pavt.
To Suit Shoulder
Treatment, See
Sheet No. 14
3. This standard drawing is sufficient for plan details for the MELT when installed in connection with shoulder guardrail and
precludes the requirement for shop drawing submittals unless the plans otherwise call for such submittals. The MELT shall
be assembled in accordance with the distributor’s detailed drawings, procedures and specifications.
4. The first two post must be short timber breakaway posts with steel foundation tubes and soil plates, post Nos. 3 thru 6 must
be CRT timber posts and post No. 7 must be a standard timber post.
1"
Special Transition Or
Other Special Treatment
2’-1"
1’-2"
Standard Guardrail,
4’-0"
Departu
of the MELT and their incorporation into a whole system.
1: 10 Max.
Max.
Misc. Asphalt Pavt.
1: 10
7
Beginning Of Length Of Need
8"
4"
2 1/2 "
3 Spaces @ 4’-2"
2 Spaces @ 6’-3"
5. The MELT can not be used in medians where horizontal clearance requires the use of a backrail.
2 Spaces @ 6’-3"
CRT Timber Posts And Offset Blocks
Standard
6. See the General Notes for galvanizing requirements of metallic components.
Timber Post
No Bolts Through Rail To Posts
And Offset Block
‘21’ R Fabricated
7. If the plans call for the MELT at a specific location, substitutions with other end anchorage assemblies will not be permitted
Over Beg. 6’-3"
(Bolt Back Up Plate To No. 4 Post To Provide Nested Support For Rail)
unless approved by the Engineer. If the plans call for end anchorage assembly ’flared’ at a specific location, the contractor
37.5’ Flare (Lap Panels In Direction Of Near Traffic)
has the option to construct any FDOT approved flared assembly that meet the applications for that location.
Where a flared
end anchorage is called for in the plans, any approved substitution with a parallel end anchorage will not be eligible for VECP
PLAN
consideration.
10 1
Head Bolts And
Special End Shoe
3/4 "!1" Slot
8 1/2 "
3"
To Nose
Anchor Plate
7 1/2 "
6 1/8 "
4 7/8 " 4 7/8 "
1’-4"
12 1/4 "
Retroreflective
Cable Assembly
Adhesive Sheeting
Bolt & Nut With
25 3/4 "
And Washer Each End
Apply 8"!24" Amber
Steel Tube
25 3/4 "
8 1/2 "
PLAN
Hex Nut, Hex (Jam) Nut
Strut And Yoke Assembly
5/8 "!18" Long Post
6"
Recess Nuts
(6 Reqd.)
Soil Plate
Nut & Washer
^
Soil Plate
45
Steel Tube
compensation for furnishing and installing all components in accordance with the plans; the distributor’s detailed drawings,
procedures and specifications and this Index.
13^
5/8 "!1 3/4 " Long Button
8. The MELT shall be paid for under the contract unit price for Guardrail, End Anchorage Assembly (Flared), EA and shall be full
^
13^
Buffer End Section
Diaphragm Plate
45
/2 "
R
MODIFIED ECCENTRIC LOADER TERMINAL (MELT)
5/8 "!10" Long Post Bolt And Nut With
5/8 " Plain Round
Beam Washer Under Head And
Washer Under Nut
8 1/2 "
2"
5/8 " Plain Round Washer Under Nut
Shelf Angle
6 3/4 "
8 1/4 "
1 1/2 "
1/4 " Steel Plate
8 1/4 "
Max.
5/8 "!1 3/4 " Long Button Head Bolt
FLAT PLATE LAYOUT
ELEVATION
And Nut With Beam Washer
29
Under Head And Nut
All Slots Shall Be
32
SHELF ANGLE
1
18
!
BUFFERED END SECTION
TOP VIEW
4"
5/8 "
6 1/4 "
Diaphram Plate
1 1/8
3 1/2 "
Short Timber Breakaway Post
1’-8 3/4 "
1’-4"
"
21
/4 "
1" R (Typ.)
1"
45
1’-0"
2"
6’-3"
Short Timber Breakaway
5 1/2 "
^
Post And Offset Block
Splice Bolts And Nuts
5’-7 1/4 "
Amber Retroreflective
A
e
R
3/16 "
STRUT
R
10
"
1/2
6"
e
Se
N
5/1
ot
Sheeting (See Above)
Bearing Plate
Strut And Yoke Assembly
B
|
21
/2 "
B
Post Sleeve
3/8 " R (Typ.)
6" \ Hole
6 1/2 "
2 3/8 "\ Hole
Guardrail Pavement
A
3/4 "
Breakaway Terminal
Two 8d Nails To
Prevent Rotation
1’-9"
Slots
Cable To Be Drawn Taut
With Hand Wrench Prior
To Setting Jam Nuts
8 1/8 "
2- 3/4 "!4"
Shelf Angle
Yoke
Yoke
PLAN
1 11/16 " @ 10^
(2 Reqd. Per Steel Tube)
5/8 "
Under Heads And Nuts
13^
1 11/16 "
2"
10^
STEEL STRUT AND YOKE ASSEMBLY
PLAN
1/4 " R
or
Steel Tube
5/16 " R
24"!24"! 1/4 "
Steel Tube
Note: Steel tubes and attached soil
plate may be installed by:
(1) Excavating, backfilling and compacting
to provide full passive soil resistance
guardrail and turned up for left side guardrail.
3/4 "!1 1/8 " Slot
1 1/8 "
24"!18"! 1/4 "
1 1/8 "
24"!24"! 1/4 "
1 7/16 "
Soil Plate
6 3/4 "
2 1/4 "
4"
With 5/8 " Plain Round Washer
or
Bending
3/4 " @ 35^
2- 5/8 "!7 1/2 " Long Bolts And Nuts
Note: Assembly installed with channel turned down for right side
1 1/8 "
Round Wasner Under Head And Nut
24"!18"! 1/4 "
YOKE (2 Reqd.)
10 1/2 " R Before
2" @ 35^
5/8 "!10" Long Bolt And Nut With 5/8 " Plain
Soil Plate
7/8 "!2" Slot
C 6!8.2
3/4 "
35^
2 1/4 "
SECTION BB
SECTION AA
Note: Bolt holes are not required, but, diaphragms with either manufacturer
produced two or three hole in line patterns are acceptable.
to all surfaces of the tube and soil plate.
DIAPHRAGM PLATE (2 Reqd.)
(2) Driving steel tube and soil plate as a
unit with a dummy timber post to prevent
damage to breakaway post.
FRONT VIEW
END ANCHORAGE ASSEMBLY TYPE MELT
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
02
22 of 23
Index No.
400
3/4 " Dia. x 9’-0" Cable With
One Swaged End (See Sheet 18)
1. Controlled release returns are intended for use (a) in openings in continuous
Lower Cable Attachment
Steel Tube
CONTROLLED RELEASE RETURN NOTES
Special End Shoe
Buffer End Section
Anchor Plate
(See Left)
guardrail for driveway and side road access when flares and transitions or
standard radial returns can not be applied (Sheet 11); and, (b) for shielding the
Soil Plate
ends of bridge traffic rails and barrier walls where the driveway and side road
Short Timber Breakaway Post
3/4 " Dia. x 9’-0" Cable
access is in close proximity to the structure and space does not permit the proper
With One Swaged End
3/8 "!4"!12" Steel Plate
Structural Tube
2. Controlled release returns are not intended as a substitute or replacement
3/4 "\ Cable With Swaged Ends
10" OD Pipe (See Below)
Soil Plate
for the appropriate use of approved vehicle impact attenuators.
Soil Plate
(See Sheet 18). Cable To Be Drawn Taut
Tack Weld 2 1/2 "!2 1/2 "! 1/4 "
Special Guardrail Pipe
With Hand Wrench Prior To Setting Jam
Steel Plate With 1 1/16 " Dia.
Attach W-beam To Steel Pipe With
Hole To Tubular Steel
use of approved flared and parallel types of Guardrail End Anchorage Assemblies.
Misc. Asphalt Pavt.
4"
2 1/2 "!2 1/2 "! 1/4 "!8" Galvanized
Nuts And Connecting Lower Cable
Attachment (See Left)
3. Controlled release returns with either 8’, 16’ or 24’ radii are designed for
TOP VIEW
highway speeds of 60 mph or less; the 32’ radius return is to be used only
5/8 "!1 1/4 " Button Head Bolt With No Washer.
No Connection To Post Is Required.
Hex Nut, Hex (Jam) Nut & Washer Each End
Timber Breakaway Post
TOP VIEW
for highway speeds of 45 mph or less.
6’-3"
6’-3"
10’
4. The controlled release returns shown are designed as full returns based on
To Next Post
5/8 "\!1 1/2 " Hex Bolt & Beam Washer Under Head
TOP VIEW
12"
18"
12"
16"
or as otherwise detailed in the plans.
Attachment (See Left)
Timber Breakaway Post
Steel Plate (See Above)
an intersection angle of 90^. The return can be terminated with the Guardrail
End Anchorage Assembly Type CRT or connected to standard guardrail as shown
Special Guardrail Pipe
Buffer End Section
1/4
1/4
1/4
2 1/2 "!2 1/2 "! 1/4 "!8" Galvanized
10" OD Schedule 40
6"
Structural Tube
1’-9"
7"
Timber Breakaway Post
Steel Tube
controlled release returns with 8’, 16’, 24’ and 32’ radii as shown; the assembly
Retroreflective Sheeting
is not to be used in any tangent rail or flared rail applications. Other types of
To Nose
Bearing Plate
6- 3/4 " Cable Clamps
4 1/2 " Spacing Typ.
Galvanized Steel Pipe
5. The Guardrail End Anchorage Assembly Type CRT is to be used only for the
Apply 8"!24" Amber
end anchorage assemblies are not to be used in the controlled release returns.
6. The area immediately behind the control release return shall have slopes not
steeper than 1 : 2 and be maintained free of fixed objects in accordance with
Cable (See Above)
Timber Breakaway Post
3/4 " Dia Hole
7. The surface approaching the controlled release return shall have a transverse
Under Head And Nut
FRONT VIEW
Soil Plate (24"!18"! 1/4 ")
LOWER CABLE ATTACHMENT
2" Misc. Asphalt Pavt.
With 5/8 " Plain Round Washers
(See Left)
FRONT VIEW
the area limits tabulated in the plan below.
5/8 "!10" Long Bolts And Nuts
Lower Cable Attachment
1/4
slope not exceeding 1 : 10. The effective width of the transverse surface is
Soil Plate (24"!18"! 1/4 ")
to be based on standard vehicle departure, return radii and preceding shielding;
SPECIAL GUARDRAIL PIPE ATTACHMENT
5/8 "!8" Long Bolts And Nuts
the width (beyond shoulder) shall be not greater than the corresponding 15’ and
With 5/8 " Plain Round Washers
20’ ’W’ values tabulated below.
Under Head And Nut
(2 Reqd. Per Steel Tube)
8. The curved guardrail portion of the controlled release return shall be full
section shop bent panels (12.5’ or 25’ panels).
Steel Tubes
FRONT VIEW
9. Washers are not to be used between the guardrail beam and the head of the
button head post bolts at any controlled release terminal (CRT) post or at any
GUARDRAIL END ANCHORAGE ASSEMBLY TYPE CRT
Guardrail End Anchorage Assembly Type CRT breakaway timber post.
10. The guardrail beam of the 8’ radius return is not bolted to the center
Standard Wood Or Steel Posts
control release post.
Guardrail Section (As Shown)
Or Guardrail Transition To Bridge
Principle Highway
11. See the General Notes for galvanizing requirements of metallic components.
Rail (See Detail J and Index No. 402)
Or To Barriers Wall (Index No. 410)
12. Controlled release return systems shall be paid for under the contract unit
prices for Guardrail (Roadway), LF, Guardrail (Shop-bent Panels), LF, and
S
’-
R
st
s
Be Maintained Free Of Fixed
Object Hazards And Have
Slopes Not Steeper Than 1:2
Po
CRT
5/8 "!10" Long Post Bolt And Nut
With 5/8 " Plain Round Washer Under Nut
L
Misc. Asphalt Pavt.
See Sheet 14
1’-9"
Slope=10:1
Or Flatter
2’-0" Min.
1’-4"
Or Driveway
Intersecting Roadway
@
P os t
s
CRT
R
@
included in the cost for guardrail.
Area Behind Guardrail To
’
CRT Posts
components in accordance with the plans and with this index. CRT posts are
2
’
or by permit and shall be full compensation for furnishing and installing all
"
3
6
24
@
’R
Guardrail, End Anchorage Assembly (Type CRT), EA as called for in the plans
g
in
c
a
p
3
CRT Post
16
6’
-
R
S
3"
"
8’
in
c
g
W
c
g
S
a
n
i
p
a
p
"
ng
ci
@
RETURN NOTES’ No. 10)
a
6’
-3
(See ’CONTROLLED RELEASE
p
6’
-3
The Center Of The Nose.
S
Do NOT Bolt Rail To Post At
End Measurement For Guardrail Payment
3 1/2 " Dia. Holes
Nom.
R
8’
Required Area Free
Length Of Shop
Bent Panels
No. Of CRT
L
12.5’
5
W
25’ x 15’
25’
6
30’ x 15’
37.5’
8
40’ x 20’
32’
50’
11
50’ x 20’
Guardrail End Anchorage Assembly
Connecting Guardrail On
Intersecting Roadway Or
24’
16’
Centered In Post
Of Hazards
Posts
2’-4"
Return
1:2 Max.
Driveway
Options
Type CRT (In Absence Of Connecting
Note: To be constructed when flares and transitions or standard
radial returns can not be applied. See Sheet 11.
Guardrail)
8"
CRT TIMBER POST
CONTROLLED RELEASE RETURN FOR SIDE ROAD AND DRIVEWAY ACCESS
2006 FDOT Design Standards
GUARDRAIL
Last
Revision
Sheet No.
04
23 of 23
Index No.
400