Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 25, 2017, 09:10 AM
  • 21 0459_21 0458 _20170425_022702.mp4

Date
04/25/2017
W/O
630321
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00777
PipeID
P15668
Time
2:10 AM
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 0458
Downstream MH
21 0459
Dir. of Survey
Upstream
Length Surveyed
346.9 ft.
Total Length
346.9 ft.
Structural Index
3
Structural Quick
4132
Structural Rating
12
O&M Index
2
O&M Quick
2100
O&M Rating
2
Overall Index
3
Overall Quick
Overall Rating
14
Pipe schematic from manhole 21 0458 to 21 0459
MH: 21 0458MH: 21 0459upstream0 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish0 ft. AMH - Upstream Manhole, Survey Ends - 21 04590 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish136.4 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start141.2 ft. CL - Crack Longitudinal, at 09 o'clock, within 8 inches of joint: YES171.3 ft. FS - Fracture Spiral, from 03 to 06 o'clock, within 8 inches of joint: YES335 ft. FM - Fracture Multiple, from 10 to 02 o'clock, within 8 inches of joint: YES344 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start346.9 ft. MWL - Water Level, 10 %of cross sectional area346.9 ft. MWM - Water Mark, 20 %of cross sectional area346.9 ft. AMH - Downstream Manhole, Survey Begins - 21 0458

Observation photos (5)

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

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

  • Fracture Multiple, from 10 to 02 o'clock, within 8 inches of joint: YES

    11.9 ft. - Fracture Multiple, from 10 to 02 o'clock, within 8 inches of joint: YES

  • Fracture Spiral, from 03 to 06 o'clock, within 8 inches of joint: YES

    175.6 ft. - Fracture Spiral, from 03 to 06 o'clock, within 8 inches of joint: YES

  • Crack Longitudinal, at 09 o'clock, within 8 inches of joint: YES

    205.7 ft. - Crack Longitudinal, at 09 o'clock, within 8 inches of joint: YES

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

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

Observations (11)

DistanceCodeObservation
175.6FS
0MWL
346.9CM
210.5CM
346.9AMH21 0459
2.9DAGS
11.9FM
205.7CL
346.9DAGS
0MWM
0AMH21 0458

Properties (6)

additional_info
SC340727
custom_field_two
3
customer
LACSD
datetime
2017-04-25T02:10:22-07:00
documentation
PROPIPE
is_lateral_inspection
false