Existing Box Culvert (If Applicable) Precast Box Culvert Sections (Typ.) 2’-0" (Min.)

C-I-P Exterior Wall/Slab Transition (see Detail "E")
Existing Box Culvert
(If Applicable)
E
PERMITTED PRECAST ALTERNATE BOX SECTIONS
Precast Box Culvert Sections (Typ.)
TYPE DESCRIPTION
2’-0" (Min.)
Section C-C, C-I-P
Box lengths range
E
Filter Fabric (full
length at exterior
n. )
i
M
es
"
0
ox
1’ w b
A
b/
(
longitudinal joint)
Type B Boxes only
A
to Precast Box Culvert
B
Precast Joint
Connection
C-I-P Wingwall as per
Index No. 292
Monolithic
or
(Four Sided)
Contractor Design
Single Cell
See Section A-A
A
DESIGN NOTES
MULTIPLE BARRELS
Single Cell
Headwall Connection
from 4’-0" to 16’-0"
SINGLE BARREL
Top slab
Three
section
sided
Two-Piece
bottom
(Four Sided)
section
Contractor Design
details shown in plans
Filter Fabric
Multicell
(full exterior
C
Monolithic
Not Applicable
Contractor Design
wrap)
C
Optional Lap
B
(2’-0" Min.)
1
2"
V-Groove
C
GENERAL NOTES:
1’-0" Min.
B
1. Specifications:
Bedding
General:
Material
FDOT Standard Specifications for Road and Bridge Construction,
6" Min.
Section 410 (current edition, and supplements thereto).
Concrete (Precast):
ve
oo
Gr
V
1 2"
See Section B-B
Longitudinal Joint
(Type B Boxes only)
D
C:
\d\projects\standards\structures\current\ready4release\2014BOOK\00291-1of5.
dgn
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ISOMETRIC VIEW OF PRECAST CONCRETE BOX CULVERT
(Double Barrel Culvert shown,
environments.
Class IV (5,500 psi) for moderately to extremely aggressive
environments.
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)
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Concrete (Cast-In-Place):
Class II (3,400 psi) for slightly aggressive environments.
Class IV (5,500 psi) for moderately to extremely aggressive
environments.
Reinforcing Steel:
Maintain minimum clearance of 2" for slightly and moderately
aggressive environments or 3" for extremely aggressive
environments, unless otherwise shown. Equal area substitution
of welded wire (WWR) reinforcement is permitted.
2. Work this Index with the Cast-In-Place Concrete Box Culvert
Details and Data Tables shown in the plans, Index No. 289 and
l
l
wa
g
n
P Wi
I
C-
Single or Multiple Barrel Culvert similar)
the Precast Concrete Box Culverts shown in the shop drawings.
For Type I Connection
3. All joints between precast sections must be tongue & groove
remove & replace
2’-0" section of
with joint sealant. Joints between cast-in-place & precast
existing box, headwall
sections shall have longitudinal reinforcing extending from top,
& toe slab
g
n
i
t
o
P Fo
I
C-
Exterior Wall/Slab
C-I-P Transition
Existing
Box Culvert
New Precast Box
Culvert Extension
sm 970re
bottom & both side slabs of the precast box tied to the
cast-in-place reinforcement. Single barrel culverts may have
precast headwalls cast integrally with the end segment
when approved by the Engineer.
4. Extension of existing multiple barrel box culverts with multiple
single cell precast box culverts is not permitted unless approved
f
of
t
Cu
l
al
w
ng
i
W
-P
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C-
-P
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C-
DETAIL E
1’
-0
"
M
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)
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Li ri
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F
"
-0
1’
-P
I
C-
5:
04:
02 PM
ng
i
ow
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sh
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a
on
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S
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ng
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Class III or Class II Modified (5,000 psi) for slightly aggressive
ng
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ow
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an
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ox gw
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B
n
f
i
W
al e A
H
p
ed
Ty ew
k
S
e
To
ab
l
S
l
al
W
by the District Structures Engineer. Full transition details must
F
&
-P
I
C-
be shown in the shop drawings when approved.
l
al
dw
a
e
H
5. Culverts larger than the specified size may be substituted
F
6" Chamfer
with no additional payment to the Contractor. Substitution must
(Typ.)
be approved by the Engineer, minimum earth cover and invert
elevations shown in the Contract Documents must be maintained.
ng
i
ot
Fo
n.
i
M
6"
Threaded Bars with mechanical
Dimensions of inner
couplers or full length lap splice
opening in new and
or bar extensions (Typ.)
n.
i
M
6"
existing box are equal
PICTORIAL VIEW OF EXTERIOR
WALL/SLAB TRANSITION
6/24/2013
EXPLODED VIEW OF CONNECTIONS AT END OF CULVERT
LAST
REVISION
01/01/11
REVISIO N
(Double Barrel Culvert shown, Single or Multiple Barrel Culvert similar)
DESCRIPTION:
INDEX
FDOT 2014
SUPPLEMENTAL DETAILS FOR PRECAST
DESIGN STANDARDS
CONCRETE BOX CULVERTS
NO.
291
SHEET
NO.
1of 5
3" Min. Tongue length
3" Min. Tongue length
(8 to 15 bevel)
inside at joint
1" Min. cover inside at joint
Filter
1" Min. cover
Fabric
Outside Face
Min.,
(Typ.)
Joint Sealant
114" Min.,
(Typ.)
(Typ.)
2" Cover
3" Min.
2" Cover
1" Min. cover
Fabric
(Typ.)
Outside Face
2" Cover
Joint Sealant
2" Max.
112" Min. cover outside
4"x4" ~ W4.0xW4.0
1" Min. cover WWR (Min. 10" Wide
& 3 Cross wires) *
3" Max.
& 1" Min. cover inside at joint
Direction
Final joint gap as per
of Flow
sealant manufacturer’s
See Section A-A
3" Min. Tongue length
for reinforcing
(8 to 15 bevel)
cover requirements
(Typ.)
7" M in.
2" Max.
Filter
3" Min.
8" M in.
114"
1" Min. cover
(8 to 15 bevel)
112" Min. cover outside,
3" Min.
3" Min.
2" Cover
1
4"
1
(Typ.)
334"
1" Min. cover
Min.
2" Max.
Joint Sealant
1" Min. cover
Provide WWR or extend
Min.
3" Max.
reinforcing into tongue
inside at joint
recommendations
Direction
Final joint gap as per
of Flow
sealant manufacturer’s
(See Section A-A)
ALTERNATE BOTTOM SLAB TRANSVERSE JOINT
recommendations
TYPICAL SECTION
(DOUBLE-SIDED TONGUE & GROOVE JOINT)
SECTION A-A
SECTION A-A
(2" Cover - Thin Wall Detail)
(2" Cover - Thick Wall Detail)
(All reinforcing not shown for clarity)
NOTE:
Bottom Slab Joints in Type B Boxes may
be single tongue & groove joints as shown
in Section A-A when the Top Slab Joints
3" Min. Tongue length
3" Min. Tongue length
(8 to 15 bevel)
(8 to 15 bevel)
2" Min. cover outside,
1" Min. cover
Filter
Top Slab
Filter
1" Min. cover
Fabric
114" Min.,
2" Max.
1" Min. cover
Fabric
(Typ.)
(Typ.)
3" Cover
(Typ.)
Joint Sealant
Outside Face
3" Cover
Joint Sealant
(Typ.)
314" Min.
10" M in.
Outside Face
Min. 1" Cl.
Direction of Top Slab Placement
inside at joint
1" Min. cover inside at joint
8" M in.
C:
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are oriented as shown in Schematic "A".
Direction of Flow
3" Cover
1
1 4"
(Typ.)
4"x4" ~ W4.0xW4.0
Min.,
2" Max.
1" Min. cover
2" Min. cover outside
1" Min. cover inside at joint
WWR (Min. 10" Wide
3" Cover
434"
& 3 Cross wires) *
(Typ.)
Min.
3" Max.
of Flow
2" Max.
1" Min. cover
1" Min. cover
Final joint gap as per
Direction
114" Min.
3" Max.
inside at joint
sealant manufacturer’s
recommendations
Final joint gap as per
Direction
sealant manufacturer’s
of Flow
SECTION A-A
(3" Cover - Thin Wall Detail)
recommendations
SECTION A-A
(3" Cover - Thick Wall Detail)
reinforcing utilizes WWR, extend wall and slab
SCHEMATIC "A"
reinforcing into the joint and bend to maintain
sm 970re
Direction of Bottom Section Placement
Bottom Slab
* At the Contractor’s option when the box culvert
TYPE B BOX SECTION PLACEMENT
cover in lieu of 4"x4" ~ W4.0xW4.0 WWR at joint.
FOR SINGLE TONGUE & GROOVE JOINTS
Transverse wire in tongue may be cut at corners
5:
04:
04 PM
of box to allow bending of the WWR.
PRECAST SEGMENT TO SEGMENT TONGUE & GROOVE TRANSVERSE JOINTS
TWO-PIECE PRECAST SEGMENT
ADDITIONAL JOINT DETAILS
LAST
REVISION
07/01/06
REVISIO N
6/24/2013
(TYPE B BOX)
DESCRIPTION:
INDEX
FDOT 2014
SUPPLEMENTAL DETAILS FOR PRECAST
DESIGN STANDARDS
CONCRETE BOX CULVERTS
NO.
291
SHEET
NO.
2 of 5
Blhw (Index No. 289)
1’-0" Min.
(Filter Fabric)
2" x 2"
Headwall reinforcing
Chamfer
(Same as C-I-P in plans)
(Typ.)
6"
Extension of bottom steel (Provide
6"
Extension of bottom steel (Provide
Min.
standard hook or WWR anchorage)
Min.
standard hook or WWR anchorage)
Type D-3 Filter
Type D-3 Filter
Line with Filter Fabric
6"
of horizontal joint)
Max. Joint
(Non-Shrink Grout
6" x 6"
or Joint Sealant)
Chamfer
Field bend & trim bottom
Top slab
bar extension as shown
C-I-P reinforcing
precast reinforcing
1
2"
Typ. Cover
Max. Joint
2" Cl.
(Non-Shrink
(Typ. @ joint)
Grout or Joint
2"
412"
412"
Sealant)
Min.
Varies**
2"
Bend bottom reinforcing
extension. (#4 Bar adhesive bonded
Varies**
as required to maintain
dowels with 1’-0" embedment and
(4" Min.)
cover at joint
1
2"
(5
Min.)
#4 STIRRUP
BEND DIAGRAM
1’-0" Min. spacing permitted)
Precast End
SECTION B-B
SECTION B-B
TOP SLAB TO WALL JOINT
TOP SLAB TO WALL JOINT
(KEYED JOINT)
(HAUNCHED JOINT)
Segment
C-I-P End Section
Typ. Cover
Mechanical couplers or 1’-6" bar
or extension of
or Headwall
1’-0" Max. spacing
As Reqd.
1
2"
1’
-0" M in.
slab reinforcing
Key
Longitudinal top
112" M in.
8"
M in.
Cl.
slab reinforcing
Face of
#4 Stirrups @
of horizontal joint)
8" M in.
1" Min.
Circumferential top
to maintain cover
Fabric (full length
8" M in.
Min.
Face of Wingwall
Top Slab
with 1’-0" overlap (Min.)
(
Filter Fabric)
H lhw (
Index No. 289)
Fabric (full length
Precast Box Culvert
** Provide adequate width
(As per Plans)
to satisfy shear strength
requirements at joint
TYPE B BOX LONGITUDINAL JOINTS
Face of C-I-P
Face of Precast
Wingwall/Headwall
End Segment &
Construction Joint
Mechanical couplers or 1’-6" Min. bar
1’-6"
3
4"
extension (Full length bar extension or
x 34"
adhesive bonded dowel bars with
1’-3" Min. Lap
Chamfer
1’-0" embedment permitted)
Splice (when reqd.)
H lcw + 6" (
Index No. 289) *
C:
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SECTION C-C
C-I-P HEADWALL DETAILS AND CONNECTION TO PRECAST BOX
Thickness of C-I-P
See Index 289 for C-I-P
bottom slab in plans (Tb)
1" Min. ~
Transition details
3" Max.
Longitudinal bottom slab reinforcing
Inside Face
Circumferential bottom slab reinforcing
of Wall/Slab
Mechanical couplers or 2’-0"
Equivalent reinforcing
extension of precast box reinforcing
to C-I-P design
Longitudinal reinforcing
shown in plans
Bottom slab C-I-P reinforcing or
extension of precast reinforcing
Cutoff wall reinforcing (Typ.)
(See C-I-P design in plans)
sm 970re
Splice
Blcw (Index No. 289)
Outside Face
Filter Fabric wrapped
C-I-P End Section
5:
04:
06 PM
(As per Plans)
of Wall/Slab
around construction joint
Precast Box Culvert
Existing Box
Cast-In-Place (C-I-P) Transition
Culvert to remain
4’-0" (Typ.)
New Precast
Box Culvert
SECTION D-D
Section of Existing Box Culvert to be removed and replaced,
C-I-P TOE SLAB & CUTOFF WALL DETAILS
for Type I Connection.
SECTION E-E
AND CONNECTION TO PRECAST BOX
EXTERIOR WALL/SLAB TRANSITION DETAIL FOR PRECAST EXTENSION
6/24/2013
* Provide additional 6" depth of
(Type I Connection shown, Type II Connection similar)
LAST
REVISION
01/01/12
REVISIO N
cutoff wall at no additional cost.
DESCRIPTION:
INDEX
FDOT 2014
SUPPLEMENTAL DETAILS FOR PRECAST
DESIGN STANDARDS
CONCRETE BOX CULVERTS
NO.
291
SHEET
NO.
3 of 5
10"
Min.
Gap (between single cell
Thread length per
manufacturer for
Additional outside
PIPE BLOCKOUT NOTES:
vertical reinforcing
Inside vertical wall reinforcing
(See C-I-P design in plans)
1. Cut box culvert reinforcement as required
to maintain 2" cover.
2. For Precast Sections construct opening a
minimum of 1’-6" away from any box to
Filter
Additional inside
Fabric
mechanical splice
(
Typ.
)
End (1’-0" Min.)
Tw
embedment
6"
Rebar splice
Tw
1’-0" Min.
design in plans)
Culvert
Embedded
Precast Box
Mechanical
M in.
reinforcing (See C-I-P
Optional
(Typ.)
units, see Sheet 1)
Inside vertical wall
box joint, except opening may be a minimum
vertical reinforcing
of 1’-0" away from joint when at least 2’-0"
of clearance to the box to box joint is
Blhw - 6" (Index No. 289)
8"
provided on the opposite side of the pipe
End of Precast
6"
For 3" Cover:
(
As per Plans)
C-I-P Box
Blhw - 5" (Index No. 289)
Culvert End
For 2" Cover:
opening.
Box Culvert &
back of Headwall
3. Pipe blockout diameter to be 6" greater
Diagonal Bars
than pipe outside diameter.
4. See Drainage Plans for size, placement,
and invert elevation.
#4 BAR END CAP ANCHOR
BAR BEND DIAGRAM
Pipe
6"
or extend outside wall
C-I-P Wing Wall
Face of Cutoff
6"
reinforcing (Typ.)
Wall & Toe Slab
reinforcing & field bend
(As per Plans)
Additional horizontal
Varies
#4 Bar End Cap Anchors
2 x Tw+Gap
Blhw (Index No. 289)
SECTION H-H
SECTION I-I
Top of Headwall
1
2"
6" Chamfer
(See Section C-C)
V-Groove at
C
»¿ Construction
G
(Showing additional blockout reinforcing only)
Headwall
Joint permitted
Provide 50% of vertical reinforcing
Precast End
6" Chamfer
Construction
4"
–
Segment
(Typ.)
Joint permitted
Top of Precast
cut by blockout on each side of
End Segment
pipe at each face (Typ.)
»¿ Concrete
D
D
I
Anchors
longitudinal bar
(Typ.)
Inside vertical
90 hook (Typ.)
wall reinforcing
(See C-I-P
design in plans)
3" Cl.
8" Leg
(Typ.)
H
Match inside edge
of Precast Box (Typ.)
Inside vertical wall
reinforcing (See C-I-P
design in plans)
Provide concrete
transition to
haunch at inlet
@ Bot.
Additional outside
vertical reinforcing
H
Additional inside
vertical reinforcing
Construct grouted
pipe to structure
Longitudinal
M
reinforcing (Typ.)
ID
e
ip D )
(
P
extension with
(Typ.)
(Max.)
6
"
(T in
.
y
p
.)
dowel or inside
Haunch
1’
-0" M ax. spacing
End Cap
Precast
extensions @
or adhesive bonded
C
End Cap Anchors or wall reinforcing
#4 Bar
Mechanical couplers
1’
-0" M ax. spacing
Embedment
extensions @
1’-0" Min.
End Cap Anchors or wall reinforcing
(Max.)
l.
C )
.
"
2 yp
(T
4 ~ Additional #4
joint in accordance
with Index No. 201
Sheet 2
Diagonal Bars between
wall reinforcing mats
Edge of Precast
Blockout
of box culvert (Typ.)
6"
–
C:
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Top of
Construction
Circumferential
Pipe invert
reinforcing (Typ.)
elevation
(See Note 4)
5:
04:
08 PM
sm 970re
6"
Field cut vertical
C-I-P Cutoff
bars to maintain
clearance
C-I-P Box Culvert
Precast Box Culvert
Additional horizontal
Wall (See
Bottom of
Section D-D)
Cutoff Wall
#4 Bars 3’-0" long
I
(Top & Bottom) (Typ.)
G
Half Section
Half Section
showing outside reinforcing
showing inside reinforcing
End (As per Plans)
6/24/2013
SECTION F-F
VIEW G-G
ELEVATION VIEW
(Headwall, Toe Slab and Cutoff Wall Reinforcing not shown for clarity)
PIPE BLOCKOUT DETAILS
LAST
REVISION
07/01/07
REVISIO N
C-I-P END CAP DETAILS AND CONNECTION TO PRECAST BOX
DESCRIPTION:
INDEX
FDOT 2014
SUPPLEMENTAL DETAILS FOR PRECAST
DESIGN STANDARDS
CONCRETE BOX CULVERTS
NO.
291
SHEET
NO.
4 of 5
BILL OF REINFORCING STEEL
LINK SLAB NOTES:
MARK
SIZE
NO. REQ’D
LENGTH
1. Provide a Cast-In-Place Link Slab to ensure uniform
4"
Bars 4M @ 1’-0" spacing (Max.)
4"
joint opening of precast box culverts when the differential
settlement shown in the plans exceeds the following limits,
1’-0"
1’-0"
1’-0"
Link Slab
Bars 4M
J
C-I-P
2 per Barrel/Ft.
1’-3"
M
4
As Reqd.
As Reqd.
except that a Link Slab is not required for differential
3" Cl. (Typ.)
REINFORCING STEEL BENDING DIAGRAMS
settlements less than 12".
7" Link
»
=
5"
Slab
(L)†
760 x R x W
Where:
»¿
J
4
Filter Fabric, 2’-0"
R = Exterior height of Box Culvert (ft.)
Min. overlaps
W = Length of Box Culvert Segments (ft.)
Dowel
Length as required
6"
˛Y = Maximum Long-Term Differential Settlement (
9"
1’-0"
L
L = Effective length for single curvature deflection (ft.)
BAR 4M
Bars 4L *
2. Extend Link Slab to back face of headwalls and to limits
Precast Box
DOWEL BARS 4L
of existing box culverts for extensions.
Culvert (Typ.)
2" Non-Shrink Grout
4" Class NS Concrete
NOTES:
ESTIMATED LINK SLAB QUANTITIES
LINK SLAB TYPICAL SECTION
1. All bar dimensions are out to out.
2. Lap splice length for Bars 4M is 1’-4" minimum.
(Multiple Barrel Culvert shown, Single Barrel Culvert similar)
ITEM
UNIT
QUANTITY
Class II or IV Concrete (Culvert)
CY/SF
0.0216
Reinforcing Steel (Roadway)
Lb./SF
1.52
DESIGN NOTE:
1. Link Slab required when joint openings
* Install dowels with an Adhesive Bonding Material System
C:
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dgn
from differential settlement exceed 18"
NOTE: Estimated quantities are based the plan area of
in accordance with Specification Section 416. The Contractor
may substitute mechanical couplers in lieu of adhesive
precast box slabs, and are provided for information only.
bonded dowels. Shift dowels to clear box culvert reinforcing.
No additional payment will be made for Link Slabs where
as determined in Link Slab Note 1.
these are required for the precast box culverts.
Long-Term
Uniform
W
Settlement
Minimum 1’-6"
Roadway
earth cover at edge
Embankment
of shoulder when
R
Link Slab required
»¿ Precast Box Joint (Outside
Construction joints
permitted at mid
span of precast
Bars 4M spacing
box segment
»¿(Symmetrical about
6"
1’-0" spacing (Max.)
»
7" Link Slab
Filter Fabric (Typ.)
Bars 4M
Long-Term
»¿L (Effective Length along Box Cul
Differential
Bottom of
3" Cl. (Typ.)
Settlement
SCHEMATIC LONGITUDINAL SECTION (NEW CONSTRUCTION)
C-I-P Link
Slab
Roadway Embankment
Precast
Concrete Box
Dowel Bars 4L (Typ.) *
1’-0" spacing (Max.)
8"
Precast
New Precast Box
Concrete Box
Culvert Extension
»¿(Symmetrical about
sm 970re
Existing Box Culvert
Dowel Bars 4L spacing *
R
W
Long-Term Differential
VIEW J-J
Settlement with negative
curvature
Top of existing
5:
04:
12 PM
embankment slope
Point of reverse curvature
»
Long-Term Differential
Settlement with positive
6/24/2013
»¿curvature (
L
»¿Effective Length along
SCHEMATIC LONGITUDINAL SECTION (WIDENING)
LAST
REVISION
01/01/09
REVISIO N
DIFFERENTIAL SETTLEMENT COUNTERMEASURES FOR PRECAST BOX CULVERTS
DESCRIPTION:
INDEX
FDOT 2014
SUPPLEMENTAL DETAILS FOR PRECAST
DESIGN STANDARDS
CONCRETE BOX CULVERTS
NO.
291
SHEET
NO.
5 of 5