21-040-LAC_Replace-Roofs-Phase1_Final-Drawings_36.pdf
PDF 385 KB Posted
- Attached to
- FPCM-LAC-I001104-M035-RS
- Solicitation number
- 0000036277
- Issued by
- Los Angeles County, California
About this file
This document is a plumbing roof plan drawing for a California State Prison project located in Los Angeles County (Lancaster, CA), prepared by Turley Mechanical Engineering & Associates Group and Hibser Yamauchi Architects. The drawing specifically covers roof replacement work for Housing Unit Buildings 346-347, detailing rainwater drainage systems and roof area calculations for multiple roof sections (Areas A1 through A15 and Area C1), with total equivalent roof areas ranging from 150 to 2,200 square feet. The project is part of a Phase 1 roof replacement initiative for the California Department of Corrections and Rehabilitation (CDCR), focusing on precise drainage specifications, scupper placements, and compliance with 2022 California Plumbing Code requirements.
The technical drawing includes detailed calculations for rainwater drainage capacities, specifying drain pipe sizes, maximum protected roof areas, and overflow mechanisms. The design incorporates new and existing scupper conductor heads, with specific requirements such as minimum 10" wide by 4" high scupper openings and 3" roof drains. The document has received approval from the Office of the State Fire Marshal, with a fire and panic approval dated 10/10/23 and a final approval date of 11/20/2023. The project engineering was completed by Turley Mechanical Engineering, with the architectural work done by Hibser Yamauchi Architects, and the job number is JT 22107-PH1, indicating a specific phased approach to the facility's infrastructure improvements.
View the file
Other files
Show 40 more
Latest 50 of 55 listed here. See the rest on GovTribe.
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
1 61.8 2 3 4 5 7 118 9 10
A
B
C
B.4
F
D
E
H
G
J
K
K.8
L
M
1 111.8 2 3 4 5 6 7 8 9 105.7 7.3
A
B
B.7
D
E.7
G.3
J
K.7
L
M
K
H
E
C
F
G
(AREA C1)
700 SQ.FT. EQA
11 11 11
11 11 11
10 10 10
(AREA A1)(AREA A2) (AREA A3) (AREA A4)(AREA A5)
(AREA A15)
1150 SQ.FT. EQA
(AREA A14)(AREA A13) (AREA A12)(AREA A11)
650 SQ.FT.
EQA
(AREA A6)
250 SQ.FT.
EQA
(AREA A7)
250 SQ.FT.
EQA
(AREA A8)
200 SQ.FT.
EQA
(AREA A9)
450 SQ.FT.
EQA
(AREA A10)
10 10 10 10
1800 SQ.FT. EQA2200 SQ.FT. EQA 1600 SQ.FT. EQA1500 SQ.FT. EQA
1150 SQ.FT. EQA1800 SQ.FT. EQA 2200 SQ.FT. EQA 1600 SQ.FT. EQA
1500 SQ.FT. EQA
OPEN END OF HIGH
ROOF TO LOW ROOF
Project Engineer:
U R L E YT M E C H A N IC A L
E N G I N E E R I N G
G R O U P, I N C.& ASSOCIATES
(916) 325-1065
FAX: (916) 325-1075
Email: office@turleymech.com
2431 Capitol Avenue Sacramento, CA 95816
Project Manager:
GYang
Job Number:
Project Drafter: Login:
Plot Date: Aug 25, 2023 - 4:07pm
22107-PH1JT
JT
SHEET NUMBER
S
TA
TE
O
F C
A
LI
FO
R
N
IA
D E P A R
TM
E N
T O
F C
O R R
E C
TI
O
N S A
N D
R E H
A B
IL
IT
A
TI
O N
FA
C
IL
IT
Y P
LA
N
N
IN
G , C
O N
S
TR
U C
TI
O
N A
N D M
A N
A G
E M
E N
T D
IV
IS
IO
N
DE
SI
G N
SE
RV
IC
ES
A
ND
S
TA
ND
AR
DS
B
RA
NC
H
DE
SI
G
N
SE
RV
IC
ES
S
EC
TI
O N
APPROVAL
L A C
V1
C A L
IF
O R
N
IA
S T A T E P
R
IS
O N
L O
S A
N G
E L E S C
O U N
T Y
T H
S T R
E E T , W
E S T
LA
N
C A S T E R
, C A
R E P L A C E R
O O
F S
P H
A S E
A U G
U S T
W O
R K
IN
G D
R A W
IN
G
S
.1
A rc h it e ct s, I n c.
H
IB
S E R Y
A M
A U C
H I n d S tr e e t, S u it e
D a vi s, C
A
.7
.1 o ff ic e
.7
.4 f a x
MPC302
P L U
M B
IN
G
H
U B
U
IL
D
IN
G S
T
H R U
R O
O F P
L A
N R
A
IN
W A
T E R
REMODEL KEY NOTES
01 (N) ROOF DRAIN RD-1 AND OVERFLOW DRAIN OFL-1. (N)DRAIN SIZE MATCH
(E) AND MIN 3". REFER TO ARCHITECTURAL DETAIL 12/A905.
#### EQA
NOTE
EQUIVALENT AREA OF ROOF AREA PLUS AREA OF VERTICAL
WALLS, PER CPC 1103.4, 2019.
PER US WEATHER BUREAU TECHNICAL PAPER NO.40 CHART 14:
100-YEAR 1-HOUR RAINFALL (INCH), LOCAL RAIN WATER FALL RATE
IS BETWEEN 0.5"/HR AND 1.0"/HR. WHILE CONSIDERING A SAFETY
FACTOR, 2"/HR RAINFALL IS USED IN THIS PROJECT.
PER 2022 CPC TABLE 1103.1 AND TABLE 1103.2, MAX PROTECTED
ROOF AREA OF PIPES ARE SHOWING BELOW:
PIPING MAX PROTECTED ROOF AREA (SQ.FT.)
SIZE HORIZONTAL SLOPE VERTICAL PIPING
(INCH) 1
8"/LF 1
4"/LF 1
2"/LF ROOF DRAIN, LEADER
2" - - - 1440 3" 1,644 2,320 3,288 4,400 4" 3,760 5,300 7,520 9,200 5" 6,680 9,440 13,360 17,300 6" 10,700 15,100 21,400 27,000
PER 2022 CPC 1101.12.2.1, WHEN SCUPPER OR SIDE OPENING IS
USED FOR OVERFLOW, HEIGHT OF OPENING SHALL BE NO LESS
THAN 4", AND WIDTH SHALL BE NO LESS THAN CIRCUMFERENCE OF
THE ROOF DRAIN REQUIRED FOR THE AREA SERVED.
AN ALTERNATIVE MEANS IS USING SCUPPER INSTEAD OF THE ROOF
DRAIN FOR THE PRIMARY RAINWATER DRAINAGE. ALTERNATIVE
MEANS IS UNDER THE AGREEMENT WITH OF CDCR PROJECT
MANAGER. IN THIS CASE, HEIGHT OF OPENING SHALL BE NO LESS
THAN 4", AND WIDTH SHALL BE NO LESS THAN CIRCUMFERENCE OF
THE ROOF DRAIN REQUIRED FOR THE AREA SERVED. WHERE ROOF
DRAIN AND SCUPPER ARE COMBINED, THE HEIGHT OF OPENING
MUST BE A MINIMUM OF TWICE THE REQUIRED HEIGHT (MIN OF 8").
THE ABOVE DATA ARE ONLY MINIMUM REQUIREMENT OF DRAINS
AND PIPES. THEY CAN BE OVERSIZED IN THE PROJECT.
RAIN WATER CALCULATION
FOR AREA A1 THRU A15, MAX TOTAL EQUIVALENT ROOF AREA IS
2,200 SQ.FT. A MIN 3" ROOF DRAIN OR MIN 10"Wx4"H SCUPPER
OPENING IS SUFFICIENT TO SUPPORT EACH AREA. MIN OVERFLOW
SIDE WALL OPENING IS 10"Wx4"H. THE NEW PRIMARY AND
SECONDARY SIDE WALL OPENING ARE MEET THE CODE
REQUIREMENT.
FOR AREA C1, MAX TOTAL EQUIVALENT ROOF AREA IS 700 SQ.FT.
MIN 3" ROOF DRAIN AND 3" OVERFLOW DRAIN ARE SUFFICIENT TO
SERVE THE AREA.
11 (E) SCUPPER CONDUCTOR HEAD, MODIFY AS NEEDED FOR NEW SCUPPER
OPENING LOCATION
12 (N) SCUPPER CONDUCTOR HEAD, SIZE MATCH OTHER (E) CONDUCTOR HEAD ON
THE SAME WALL. INSTALLATION DETAILS SEE 4/S501.
N
N
BUILDING 347BUILDING 346
(E) OR (N) PRIMARY SCUPPER AND (N)OVERFLOW SCUPPER FOR LOW ROOF.
EACH SCUPPER OPENING SHALL BE MIN 10"WIDE x 4"HIGH. THE LOCATION
OF (N) PRIMARY SCUPPER SHALL MATCH (E) OR (N)SCUPPER CONDUCTORS.
SEE ARCHITECTURAL DETAIL 28/A905.
V1
OFFICE OF THE STATE FIRE MARSHAL
shall be available on the project site at all times.
10/10/23
APPROVED FIRE AND PANIC ONLY
Approval of this plan does not authorize or approve any omission or deviation from applicable regulations. Final approval is subject to field inspection. One set of approved plans
23-0002
11/20/2023 CASp-491 #1317
File details come from the government source that posted it. Updated .