Pipe Condition Flags. Purpose of Culvert Inspections  Identify bad pipes to be replaced during scheduled highway project.  Reduce the incidence of road.

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Presentation transcript:

Pipe Condition Flags

Purpose of Culvert Inspections  Identify bad pipes to be replaced during scheduled highway project.  Reduce the incidence of road failures from deteriorated pipes.

Inspection Basics  Inspection Codes:  1 = Good as new condition  2 = Some wear, but structurally sound  3 = Extensive deterioration, consider for repair or replacement  4 = Critical deterioration  0 = Not rate-able

CMP culvert distortion and deterioration

TH 95 at MP 80 HYDINFRA Inspection Terms

Pipe Inspection Flags Needs Clean? Needs Clean? Needs Repair? Needs Repair? Standing Water Standing Water Erosion Erosion Plugged Plugged Silt Silt Cracks Cracks Pitting/Rusting Pitting/Rusting Spalling/Flaking Spalling/Flaking Piping Piping Misalignment Misalignment Joints Separated Joints Separated Holes Holes Deformation Deformation Inslope Cavity Inslope Cavity Void in Road Void in Road Road Distress Road Distress Repair under Road Repair under Road

Structure Inspection Flags Needs Clean? Needs Clean? Needs Repair? Needs Repair? Standing Water Standing Water Spalling/Flaking Spalling/Flaking Pitting/Rusting Pitting/Rusting Cracks Cracks Holes Holes Ring Deterioration Ring Deterioration Void in Road Void in Road Road Distress/Deformation Road Distress/Deformation

Special Structure Inspection Flags Needs Clean? Needs Clean? Needs Repair? Needs Repair? Standing Water Standing Water Spalling/Flaking Spalling/Flaking Pitting/Rusting Pitting/Rusting Deteriorated Ties Deteriorated Ties Joints Separated Joints Separated Deformation Deformation

Road Distress

Pavement and guardrail indicate problem here

Special Structure: Headwall Condition 4 Flag for Repair Joint Separation (from pipe)

Pipe (plus 2 special structures– Bend and Reducer): Bend Reducer 48” to 36” Pipe Size 36” Holes Piping Pitting/Rusting Spalling/Flaking

Misalignment Pipe: Condition 4 Flags: Repair Pitting/Rusting Spalling/Flaking Holes Piping

Pipe: Deformation Separation Misalignment

Pipe: Holes Silt Pitting/Rusting Spalling/Flaking Deformation Piping

(second pipe above 36” cmp)

36” Pipe: Separation Inslope Cavity (hole in soil above pipe) 12” Pipe Flume: Condition 2 ?

Misalignment Joints Separated Infiltration

Erosion – Channel Degradation Banks are slumping into channel

Erosion – Channel Degradation

Special Structure: Headwall Condition 4 Repair Joints Separated Deformation Pitting/Rusting 12” CMP with Apron: Condition 2 ? (but installation should be noted in comments) Energy Dissipater? Pipe: 36” CMP Condition 4 Inspection Flags: Repair Pitting/Rusting Spalling/Flaking Erosion Piping Misalignment Joints Separated Holes Deformation Infiltration Inslope Cavitation Void in Road Road Distress/Deformation