Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 25, 2017, 06:40 AM
  • 21 0451_21 0450A _20170425_000422.mp4

Date
04/24/2017
W/O
630321
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00777
PipeID
P22996
Time
11:40 PM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
Not Known
Media Label
K4513
Sewer Name
21 MOUNT SAN ANTONIO TRUNK
City
WALNUT
Loc. details
Main Highway - Urban
Location Code
A
Use of Sewer
Sanitary Sewer
District
District 21
Page No.
28
Purpose
Routine Assessment
Project
WO_630321_TV21046_APR2017
Sewer Type
Gravity
Material
Vitrified Clay Pipe
Shape
Circular
Height
18 in.
Width
18 in.
Upstream MH
21 0450A
Downstream MH
21 0451
Dir. of Survey
Upstream
Length Surveyed
271.5 ft.
Total Length
271.5 ft.
Structural Index
3
Structural Quick
4132
Structural Rating
10
O&M Index
2
O&M Quick
2400
O&M Rating
8
Overall Index
3
Overall Quick
Overall Rating
18
Pipe schematic from manhole 21 0450A to 21 0451
MH: 21 0450AMH: 21 0451upstream0 ft. AMH - Upstream Manhole, Survey Ends - 21 04510 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish0.1 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish42.1 ft. TBC - Tap Break-In Capped, at 09 o'clock, -, within 8 inches of joint: NO, 6"138.8 ft. TBC - Tap Break-In Capped, at 09 o'clock, -, within 8 inches of joint: NO, 6"173.1 ft. FM - Fracture Multiple, from 08 to 12 o'clock, within 8 inches of joint: YES182.7 ft. FS - Fracture Spiral, from 08 to 04 o'clock, within 8 inches of joint: YES241.3 ft. TBC - Tap Break-In Capped, at 10 o'clock, -, within 8 inches of joint: NO, 6"268.5 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start270.5 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start271.5 ft. MWL - Water Level, 20 %of cross sectional area271.5 ft. MWM - Water Mark, 25 %of cross sectional area271.5 ft. AMH - Downstream Manhole, Survey Begins - 21 0450A

Observation photos (4)

  • Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

    1 ft. - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

  • Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock,  , within 8 inches of joint: YES, Start

    3 ft. - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start

  • Fracture Spiral, from 08 to 04 o'clock, within 8 inches of joint: YES

    88.8 ft. - Fracture Spiral, from 08 to 04 o'clock, within 8 inches of joint: YES

  • Fracture Multiple, from 08 to 12 o'clock, within 8 inches of joint: YES

    98.4 ft. - Fracture Multiple, from 08 to 12 o'clock, within 8 inches of joint: YES

Observations (13)

DistanceCodeObservation
271.5AMH21 0451
0MWL
0MWM
0AMH21 0450A
1CM
30.2TBC
271.5DAGS
98.4FM
132.7TBC
271.4CM
3DAGS
229.4TBC
88.8FS

Properties (6)

additional_info
SC340727
custom_field_two
3
customer
LACSD
datetime
2017-04-24T23:40:25-07:00
documentation
PROPIPE
is_lateral_inspection
false