Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 25, 2017, 09:11 AM
  • 21 0460_21 0459 _20170425_024138.mp4

Date
04/25/2017
W/O
630321
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00777
PipeID
P15669
Time
2:11 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.
17
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 0459
Downstream MH
21 0460
Dir. of Survey
Upstream
Length Surveyed
352.5 ft.
Total Length
352.5 ft.
Structural Index
2
Structural Quick
3122
Structural Rating
7
O&M Index
2
O&M Quick
2100
O&M Rating
2
Overall Index
2
Overall Quick
Overall Rating
9
Pipe schematic from manhole 21 0459 to 21 0460
MH: 21 0459MH: 21 0460upstream0 ft. DAR - Deposits Attached Ragging, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish0 ft. AMH - Upstream Manhole, Survey Ends - 21 046032.5 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish146.4 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start151.7 ft. CL - Crack Longitudinal, at 10 o'clock, within 8 inches of joint: YES223 ft. CS - Crack Spiral, from 07 to 09 o'clock, within 8 inches of joint: YES349 ft. DAR - Deposits Attached Ragging, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start352.5 ft. MWL - Water Level, 10 %of cross sectional area352.5 ft. MWM - Water Mark, 20 %of cross sectional area352.5 ft. AMH - Downstream Manhole, Survey Begins - 21 0459

Observation photos (4)

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

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

  • Crack Spiral, from 07 to 09 o'clock, within 8 inches of joint: YES

    129.5 ft. - Crack Spiral, from 07 to 09 o'clock, within 8 inches of joint: YES

  • Crack Longitudinal, at 10 o'clock, within 8 inches of joint: YES

    200.8 ft. - Crack Longitudinal, at 10 o'clock, within 8 inches of joint: YES

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

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

Observations (10)

DistanceCodeObservation
0MWL
320CM
200.8CL
352.5DAR
206.1CM
352.5AMH21 0460
129.5CS
0MWM
0AMH21 0459
3.5DAR

Properties (4)

additional_info
SC340727
custom_field_two
4
customer
LACSD
datetime
2017-04-25T02:11:19-07:00