{% block defect_grade_description %} {% set title = "Defect Grades and Ratings Description" %} {% set border_top = true %} {% include "nassco/pacp/page_title.html" %} {% include "nassco/pacp/table_header_row.html" %}
1

Brick: No Structural Defects

Pipe: No Structural Defects

Acceptable Structural Condition

2

Brick: Minor cracking, Surface mortar loss, Spalling slight, wear slight

Pipe: Circumfrential crack, Moderate joint defects, Spalling slight, Wear slight

Minor collapse risk in short term but potential for further deterioration

3

Brick: Total mortorloss without other defects, single brick displaced, Deformation up to 5%, Spalling medium, Wear medium

Pipe: Fractures with deformation up tp 5%, Longitudinal cracking or mulitlpe cracking, Minor loss of level, More severe joint

! Collapse unlikely in near future but future deterioration likely !

4

Brick: Total mortorloss with deformation greater than 10%, Deformation up to 10% and fractured, Displaced/hanging brickwork, Small number of missing bricks

Pipe: Broken, Deformation up to 10% and broken, Fractured with deformation 5 - 10%, Multiple fractures, Serious loss of level, spalling large, wear large

!! Collapse likely in foreseeable future !!

5

Brick: Already Collapsed, Missing invert, Deformation over 10% and fractured, Displaced/hanging brickwork and deformation over 10%, Extensive missing bricks

Pipe: Already collapsed, Deformation over 10% and broken, Extensive areas of fabric missing, Fractured with deformation over 10%

!!! Collapsed or collapse imminent !!!

 

Ratings:

QSR:Quality Structural Rating

QMR:Quality Maintenance Rating

QOR:Quality Overall Rating

SPR:Structural Point Rating

MPR:Maintenance Point Rating

OPR:Overall Point Rating

SPRI:Structural Point Rating Index

MPRI:Maintenance Point Rating Index

OPRI:Overall Point Rating Index

LOF:Likelihood of Failure

{% endblock %}