0.1’
20:1
20:1
Normal Ditch Bottom
Ditch Bottom
6"
Ditch Block (Low Side Of Inlet On Continuous Ditches)
6"
3’-1" Or
6"
2’-0"
6"
RECOMMENDED MAXIMUM PIPE SIZES
Toe Wall Required
(Paved Or Unpaved Ditches)
Inlet Inside Width
Pipe Size
6’-0"
SECTION DD
2’-0"
18"
(Unless Otherwise
Shown In Plans)
24"
D
3’-1"
6"
Alt. B Structure Bottom
8"
8"
10’
Inlet Type A
Flow
18" where an 18" pipe
enters a 2’-0" wall
A
2’-0" Or
6"
3’-1"
3’-6"
(Unless
Otherwise
Shown In
Plans)
Note: Recommended sizes are for concrete pipe.
Sizes for other types of pipe must be
3’-0"
NOTE: Alt. B Structure Bottom Only. See Index No. 200
verified for fit in accordance with Index
6"
6’
1’-6"
3’
No. 201.
6"
detail right and Index No. 200.
1’-6"
3"
INLET WITH STRUCTURE BOTTOM
3"
1
1
1
2’- 52Grate
4
1
1
1
9 Bars2 x 3 2x 1’- 84
1
38
Locate As Shown
4
1
5"
1’-6"
6"
4
3
16
1
B
2’-2 2Grate
B
3
4 Notch
4’-1"
4 16
(See Index No. 201)
4
1
The Manufacturer)
Eyebolt
E
5"
4 Z 15.9
E
6"
4’-1"
C
Predominate Flow
C
Permitted
(At The Option Of
1
Expansion Joint
1
2
7’-1"
for Structure Bottom Details And Hole Reinforcement.
For larger pipe see bottom
SECTION EE
1
22
GENERAL NOTES
1. This inlet is designed for ditches, medians, or other area subject to heavy
A
wheel loads on limited access facilities where debris may be a problem.
This inlet is not for use in areas subject to pedestrian and/or bicycle traffic.
PLAN
2. All reinforcing Grade 60 bars with 2" min. cover unless otherwise noted.
Cut or bend bars out of way of pipe to clear pipe by 1 1/2 ". See Index 201
1’-6"
for equivalent area of welded wire fabric.
6"
3" Conc. Ditch Pav’t
3’-1"
6"
6"
1
2’-0"
6"
3. Chamfer exposed edges ( 3/4 " Chamfer).
1
54
54
3"
3"
4. When alternate "G" grate is specified in plans, the grate is to be hot
e
e
Slop
#4 Bars @ 12" Ctrs.
1 1/2 " Cl.
1
Extra #4 Bar
2" Cl.
Each Side And
Above Pipe
paid for under contract unit price for Sodding, SY.
6. For supplemental details see Index No. 201.
7. All dimensions are for both precast and cast-in-place inlets unless otherwise noted.
3" Cl.
8. Inlet to be paid for under the contract unit price for inlets
(Dt Bot Type A), EA.
Horiz Wall Reinf.
(See Table 1)
#4 Bars @ 12" Ctrs.
HORIZONTAL WALL REINFORCING
SCHEDULE (TABLE 1)
6"
Opening
5. Cost of ditch paving to be included in the cost of Inlet. Sodding to be
2" Cl.
Side
Slop
8"
Side
Min.
Minimum Dimensions
6"
D
Wall Depth Varies (15’-0" Max.)
1’ Min.
(See Table 1)
See Index No.201 For
Horiz Wall Reinf.
Between These Limits -
(Total 8 SY)
Const. Joints Permitted
3" Min.
1 1/2 " Cl.
2’ Sod All Around
4"
dipped galvanized after fabrication.
3" CI.
WALL
6"
#4 Bars @ 9" Ctrs.
2
SECTION AA
MAX. SPACING
(in /ft)
BARS
WWF
#4 Bars @ 12" Ctrs.
(Pipe Opening Shown)
SECTION CC
AREA
SCHEDULE
DEPTH
0’ - 10’
A12
0.20
12"
8"
10’ - 15’
A6
0.20
6"
5"
(Pipe Opening Not Shown)
SECTION BB
2006 FDOT Design Standards
DITCH BOTTOM INLET TYPE A
Last
Revision
Sheet No.
07/01/05
1 of 2
Index No.
230
A
Centered Inlet
#4 Bar Each Corner
Structure Bottom
(2’-0" Min. Length)
2 Way Reinforcement
TOP SLAB
REINFORCING SCHEDULE
See Tables
B
B
GRADE 60 (BAR)
SCHEDULE
#5 Hoop Bar
OR 65 KSI &
70 KSI (WIRE FABRIC)
2
In
(Peripheral Reinforcement)
A
Centered OpeningSee Table For
Dimensions
A
/ft
0.20
B
0.24
C
0.37
D
0.53
E
0.73
F
1.06
G
1.45
TOP VIEW
DIAMETER
OPENING SIZE
REINFORCING
MIN.
4’-0" To 8’-0"
TOP SLAB WITH
CENTERED OPENING
#8 Bars
TOP SLAB OPENINGS
SLAB
SLAB
2’-0" x 3’-1"
DEPTH
THICKNESS
Centered Opening
Round Structure Bottom
See Index No. 200 For Structure
92
C
SIZE: 5’-0"
1
30’
92
30’-40’
92
0.5’
1
C
D
SIZE: 6’-0"
#5 Hoop Bar
2" Cl.
Each Corner
B
1
C
8’
92
8’
18’
92
30’
92
18’
#4 Bars
2" Cl.
1
0.5’
30’
1
1
37’
92
37’-40’
92
D
E
1
G
1
Bottom Details and Hole Reinforcement.
1
1
Top Slab With
SCHEDULE
SIZE: 4’-0"
0.5’-40’
8’-0" Structure Bottoms
11For
2
3’-1" Or 2’-0"
92 For 4’-0"/5’-0"/6’-0" Structure Bottoms
TOP SLAB REINFORCING DIAGRAM
(2 WAYS)
4’-0" Min. To 8’-0" Max.
SIZE: 8’-0"
(Unless Otherwise
Shown In The Plans)
2" Cl.
9’
11 2
9’
15’
11 2
15’
23’
11 2
23’
33’
11 2
33’-40’
11 2
#8 Bars @ 5" Spacing
2 Way Reinforcement
See Tables
1
0.5’
1
1
C
D
E
1
E
1
G
SECTION BB
SECTION AA
ALT. A STRUCTURE BOTTOM FOR INLET TYPE A
2006 FDOT Design Standards
DITCH BOTTOM INLET TYPE A
Last
Revision
Sheet No.
07/01/05
2 of 2
Index No.
230