00017965 - Exhibit 7-2_Acceptable Quality Levels.pdf
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- Solicitation number
- S-73000-00017965
- Issued by
- Jackson County, Oregon
About this file
This is an Acceptable Quality Levels exhibit document for the State of Oregon's Interstate 5 MP 48.3 to 50 Clear Zone Tree Removal project. The document establishes quality standards and performance requirements for tree removal and clearing work intended to improve sight distance along the specified highway corridor. The work encompasses clearing trees and limbs, trimming marked trees, establishing clear zones for signage, and removing and disposing of trees and limbs within designated areas as directed by the contracting agency.
The exhibit defines specific quality standards organized by defect category, distinguishing between major and minor defects with corresponding allowable tolerances per mile. Major defect categories include tree damage exceeding 30 percent of the tree bole, horizontal clearance failures affecting more than 20 percent of the work area, vertical clearance deficiencies, height clearance issues, and drainage impedance. Minor defects allow up to ten occurrences per mile for tree damage, five per mile for clearance issues, and two per mile for drainage concerns. Oversized material remaining on road surfaces or in drainage structures is subject to zero tolerance regardless of classification. All defects require rework, with work suspension mandated for non-compliance with approved safety plans, traffic control measures, and signage requirements. The contractor must maintain work area management practices that do not impede sight distance.
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Text version
Acceptable Quality Levels
Description Major Minor Allowable Defects Required Action
Defect Defect Major Minor Major Minor Tree damage Damage to more than
30% of the tree bole Damage to 30% or less of the tree bole
0 per mile 10 per mile Remove or Treat Remove or Treat
Horizontal Clearance More than 20% not cleared to limits
20% or less not cleared to limits
0 5 per mile Rework Rework if greater than 5 minor defects *
Vertical Clearance More than 20% not cleared to limits
20% or less not cleared to limits
0 5 per mile Rework Rework if greater than 5 minor defects *
Height above ground surface
More than 20% not cleared to limits
20% or less not cleared to limits
0 5 per mile Rework Rework if greater than 5 minor defects *
Drainage Impeded flow or water diverted out of drainage structures.
20% or less impeded, but water will stay in the channel.
0 2 per mile Rework Rework if greater than 2 minor defects *
Oversized Material Material greater than 3" diameter remaining on the road surface
Material 1” – 3” in diameter remaining on the road surface
0 0 Rework Rework
Material greater than 3" diameter and 36" in length remaining on the roadway drainages or has the potential to move into drainages.
Material 1” - 3" in diameter and greater 36" in length remaining on the roadway slopes and drainages or has the potential to move into drainages.
0 0 Rework Rework if greater than 0 minor defects *
Description Major Minor Allowable Defects Required Action Defect Defect Major Minor Major Minor
Concentrations
Work Area Management
Any concentrations that affect sight distance
N/A 0 0 Rework N/A
Not following approved safety plan which may include signs, flaggers, and other temporary traffic control measures
Not following approved safety plan which may include signs, flaggers, and other temporary traffic control measures
0 0 Suspend work until in compliance
Suspend work until in compliance
File details come from the government source that posted it. Updated .