PDX 2026-501 (156) C9.05.pdf
PDF 964 KB Posted
- Solicitation number
- 147231
- Issued by
- Multnomah County, Oregon
About this file
This is a storm drainage and underdrain profile drawing for the Portland International Airport North Runway Rehabilitation project in Oregon. The technical drawing, prepared by HNTB Corporation and dated October 2026, details the design specifications for underground drainage infrastructure components including HDPE pipes, manhole installations, and connections across multiple lines (A, B, C, F, and G). The project specifications include various pipe sizes ranging from 6 inches to 42 inches in diameter, with specific slope percentages, invert elevations, and linear footage requirements documented for each section. The drawing indicates the installation of new cleanouts on existing pipes, connections to existing manholes, and the integration of electrical conduit within the drainage system. The design was completed by Gene Tupper with drawings by C. Eiseler, checked by N. Chowdhury, and reviewed by H. Conradt, whose professional engineer license for Oregon expires December 31, 2027.
The technical documentation provides detailed station locations, rim elevations, and invert measurements for precise construction guidance. Specifications call for perforated 6-inch HDPE pipe unless otherwise noted, with slope gradients varying from 0.20 percent to 0.89 percent depending on the line segment. The drawing includes notation that the document was last revised on October 6, 2026, and emphasizes that the scale is reduced by 50 percent when printed on 11-by-17-inch sheets. This profile drawing serves as a critical design document for bidders and contractors to understand the underground infrastructure requirements and coordinate the installation of storm drainage and underdrain systems for the runway rehabilitation project.
View the file
Other files
Show 40 more
Latest 50 of 308 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
10'
15'
20'
25'
30'
10'
15'
20'
25'
30'
7+
8+
8+
9+
9+
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
15'
20'
25'
30'
15'
20'
25'
30'
4+
5+
5+
6+
6+
7+
7+
8+
10'
15'
20'
25'
30'
10'
15'
20'
25'
30'
1+
1+
2+
2+
3+
3+
4+
4+
5+
5+
6+
6+
7+
7+
8+
8+
9+
9+
+0
+5
+0
+5
+0
+5
+0
+5
+0
+5
CB
-C
ST
A:
+5
2.
.3 2'
RT
RI
M
3.
IN
V
" O
UT
(S E)
0.
163 LF - 6" HDPE @ S = 0.57%
CO
-B
ST
A:
+8 1.
.1
6'
RT
RI
M
5.
IN
V
6"
IN
(N W
1.
IN
V
6" O
UT
(S
E)
1.
405 LF - 6" HDPE @ S = 0.57%
452 LF - 6" HDPE @ S = 0.20%
CO
-B
ST
A:
+3
8.
.3 6'
RT
RI
M
4.
IN
V 6"
IN
(S
E)
9.
IN
V 6"
O
UT
(N W
9.
217 LF - 6" HDPE @ S = 0.20%
" M
H- C3
GR
AT
ED
C
OV
ER
ST
A:
+4
0.
.5 0'
RT
RI
M
2.
IN
V
" I N
(N W
6.
IN
V
" O
UT
(S
E)
6.
297 LF - 12" STS HDPE @ S = 0.44%
" M
H- C1
GR
AT
ED
C
OV
ER
ST
A:
+4
8.
.1 0'
RT
RI
M
3.
IN
V
" I N
(N W
9.
IN
V
" O
UT
(S
E)
9.
134 LF - 15" STS HDPE @ S = 0.34%
104 LF - 15" STS HDPE @ S = 0.34%
CO
-B
ST
A:
+5
5.
.0 4'
RT
RI
M
4.
IN
V 6"
IN
(S
E)
0.
IN
V 6"
O
UT
(N W
0.
INSTALL NEW CLEANOUT ON EXISTING PIPE
INSTALL NEW CLEANOUT ON EXISTING PIPE
CONNECTION TO LINE H
CO
-B
ST
A:
+1
9.
.1 3'
RT
RI
M
5.
IN
V 6"
O
UT
(S E)
2.
CO
-A
ST
A:
+3
9.
.0 6'
RT
RI
M
5.
IN
V 6"
IN
(S
E)
0.
CO
-A
ST
A:
+9
5.
.1 2'
RT
RI
M
5.
IN
V 6"
O
UT
(N W
2.
256 LF - 6" HDPE @ S = 0.89%
2" ELECTRICAL CONDUIT
2" ELECTRICAL CONDUIT
2" ELECTRICAL CONDUIT
CONNECTION TO LINE I
125 LF - 18" STS HDPE @ S = 0.25%
150 LF - 18" STS HDPE @ S = 0.25%
259 LF - 18" STS HDPE @ S = 0.25%
EX
M
H
ST
SM
H4
(8 4"
ST
A:
+9
9.
.3 3'
RT
RI
M
1.
IN
V
" I N
(N W
6.
IN
V
" I
N (N
E)
4.
IN
V
" O
UT
(S W
4.
" M
H- B1
ST
A:
+8 6.
.7
1'
RT
RI
M
5.
IN
V
6"
IN
(N W
9.
IN
V
6"
IN
(S E)
8.
IN
V
" O
UT
(N
E)
8.
" M
H- C2
SO
LI
D
CO
VE
R
ST
A:
+8
6.
.5 4'
RT
RI
M
4.
IN
V
" I N
(S W
8.
IN
V
" I
N (E
8.
IN
V
" I
N (N
W
8.
IN
V
" O
UT
(S E)
7.
LI
NE
F -C
Y C
ON
NE
CT
IO
N
ST
A:
+1
1.
.3 7'
RT
RI
M
9.
IN
V 6"
IN
(N
8.
IN
V
" I
N (N
W
7.
IN
V
" O
UT
(S E)
7.
LI
NE
G -C
Y C
ON
NE
CT
IO
N
ST
A:
+0
8.
.8 7'
RT
RI
M
9.
IN
V 6"
IN
(N
7.
IN
V
" I
N (N
W
7.
IN
V
" O
UT
(S E)
7.
97 LF - 18" STS HDPE @ S = 0.25%
82 LF - 18" STS HDPE @ S = 0.25%
CONNECT NEW PIPE
TO EXISTING MANHOLE
GENERAL NOTE(S):
1. ALL 6" HDPE PIPE SHALL BE PERFORATED UNLESS
SHOWN OTHERWISE.
SCALE:
UNDERDRAIN LINE A
1" = 50' HORIZ.
1" = 5' VERT.
10/6/2026
C
AN
Y O
U S
EE
T
H E
AI
R
PL
AN
ES
T H
E
AD
JA
C
EN
T
SA
M
PL
ES
S H
O W
T H
R
EE
D
IF
FE
R
EN
T
LE
VE
LS
O
F
SH
AD
IN
G
SE
TT
IN
G
S
FO
R V
IE
W
IN
G
A N
D P
R
IN
TI
N
G D
R
AW
IN
G
C O
N
TE
N T
AR
E
O
PT
IM
IZ
ED
W
H
EN
AL
L
TH
R
EE
P
LA
N
ES
A
R E
VI
SI
BL
E.
T H
IS
G
U
ID
AN
C
E
IS
P R
O
VI
D
ED
F O
R R
EF
ER
EN
C
E O
N
LY
PRINTED:
lig ht da rk gr ay bl ac k
DESIGN NUMBER PROJECT NUMBER
2"
G R
AP
H
IC
S
C
AL
E
- F
O R
R
EF
ER
EN
C E
O N
LY
gr ay
1:49:27 PM NCHOWDHURY c:\users\nchowdhury\dc\accdocs\hntb corporation\88598 - pdx north runway rehab\project files\shared cad\sheets - civil\storm drainage plans.dwg
DISC. SHT. NO.
DRAWING SCALE IS REDUCED 50% WHEN SHEET SIZE IS 11" x 17"
DESIGN BY
DRAWN BY
CHECKED BY
DATE
SHEET NO.
SUBMITTED BY
DRAWING NO.
TYPE:
1/
4" 1/
2" 1"
1/
4" 1/
2" 1"
DATE BY REVISION APPDATE BY REVISION APP ##
IF ELECTRONIC SIGNATURE IS BROKEN OR MISSING - THIS IS NOT A LEGAL DRAWING
PORTLAND INTERNATIONAL AIRPORT
NORTH RUNWAY REHABILITATION
STORM DRAINAGE AND UNDERDRAIN PROFILES 1
GENE TUPPER
C. EISELER
N. CHOWDHURY
H. CONRADT
OCTOBER 2026
156 CD
PDX 2026-501 C9.052024D011 102981
SCALE:
STS LINE C
1" = 50' HORIZ.
1" = 5' VERT.
SCALE:
UNDERDRAIN LINE B
1" = 50' HORIZ.
1" = 5' VERT.
RE
G ISTERED PROFESS IONALENG I NEER
MARCH 9 , 1999
60434PE
OREGON
12/31/27EXPIRES:
HA NS N . CONRA DT
| 2026-10-06T17:35:28-0700 | |
| Hans N Conradt |
File details come from the government source that posted it. Updated .