Reduced
Inlet
Riser Size
Type
(RWS x
PSL,
PAZD
PSL,
PAZD
48"
4' x 4'
3' x 5'
N/A
N/A
3' x 3'
N/A
N/A
4' x 4'
N/A
N/A
N/A
3' x 5'
N/A
N/A
N/A
DIA
4' x 5'
5' x 5'
5' x 6'
6' x 6'
8' x 8'
N/A
PSL,
PCO,
GENERAL NOTES:
1. See PB standard sheet for dimensions and details
not shown.
2. Reducing slabs are manufactured with the opening
in one corner only, as shown.
3. Reducing slabs can be installed in the field in any
orientation.
4. "Inlet Type" shown are all inlets compatible with
the corresponding reduced riser size.
Refer to
inlet standard sheets for inlet details.
Bridge
Division
Standard
EXAMPLE OF PB
REDUCING SLAB AND
REDUCED RISER SIZES
NOT A STANDARD
NOT FOR INCLUSION
IN PLANS
FILE:
C TxDOT
FILE:
The use of this standard is governed by the "
Texas Engineering Practice Act"
. No warranty of any
of this standard to other form ats or for incorrect results or dam ages resulting from its use.
kind is m ade by TxDOT for any purpose whatsoever. TxDOT assum es no responsibility for the conversion
PSL
3' x 3'
PCU
DATE:
DISCLAIM ER:
RWL or ID)
Reducing Slab Size (X x Y)
prestd12.dgn
January 2015
DN:
TxDOT
CONT
SECT
CK: AES
JOB
DW:
JTR
CK: AES
HIGHWAY
REVISIONS
DIST
COUNTY
SHEET NO.