- Date
- 08/09/2017
- W/O
- 646483
- Weather
- Dry
- Operator/Surveyor
- B.FUGATE
- Sewer ID
- Z00751
- PipeID
- P19234
- Time
- 1:12 AM
- Certificate
- U-508-7069
- System Owner
- LACSD
- Date Cleaned
- —
- Pre-Cleaning
- No Pre-Cleaning
- Media Label
- K4775
- Sewer Name
- 20 20TH STREET EAST RELIEF TRUNK
- City
- PALMDALE
- Loc. details
- Light Highway
- Location Code
- C
- Use of Sewer
- Sanitary Sewer
- District
- District 20
- Page No.
- 07
- Purpose
- Routine Assessment
- Project
- WO_646483_TV20002_JUL2017
- Sewer Type
- Gravity
- Material
- Vitrified Clay Pipe
- Shape
- Circular
- Height
- 15 in.
- Width
- 15 in.
- Upstream MH
- 20 0268
- Downstream MH
- 20 0267
- Dir. of Survey
- Downstream
- Length Surveyed
- 347.8 ft.
- Total Length
- 347.8 ft.
- Structural Index
- 3
- Structural Quick
- 3M2K
- Structural Rating
- 327
- O&M Index
- 3
- O&M Quick
- 3400
- O&M Rating
- 12
- Overall Index
- 3
- Overall Quick
- —
- Overall Rating
- 339
Pipe schematic from manhole 20 0268 to 20 0267 Observation photos (5)

2.1 ft. - Material Change, Concrete pipe (non-reinfored)

3.3 ft. - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

47.1 ft. - Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

273.8 ft. - Deposits Settled Other, 15 %of cross sectional area, at 06 o'clock, , within 8 inches of joint: YES

332.5 ft. - Deposits Settled Other, 15 %of cross sectional area, at 06 o'clock, , within 8 inches of joint: YES, Start