842_Roadway_Veg_Maint_pbsc.doc
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- AG-05GG-S-09-0057
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842 Roadway Vegetation Maintenance
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842 ROADWAY VEGETATION MAINTENANCE
842.01 Service Required
Remove vegetation, including trees, on roadway surfaces and roadsides.
842.02
Performance Standard
Roadway vegetation maintenance is complete when the vegetation has been removed from the designated treatment area which interferes with traffic, obscures signs, impedes the flow of water or diverts water from drainage structures.
A. Maintenance Level 4 and 5 roads
Vegetation shall be removed to a maximum height of 12 inches above ground surfaces. Trees larger than 4 inches diameter breast height (dbh) are designated to remain.
B. Maintenance Level 3 roads Vegetation shall be removed to a maximum height of 12 inches above ground surfaces. Trees larger than 4 inches dbh are designated to remain.
C. Maintenance Level 2 roads
Vegetation shall be removed to a maximum height of 12 inches above ground surfaces. Trees larger than 4 inches dbh are designated to remain.
D. All Roads
When ordered by the Contracting Officer to work in a weed infested area the contractor will be required to prevent spreading the infestation into un-infested areas by cleaning vehicles and equipment. The contractor will use wash stations approved by the Contracting Officer.
842.03 Location of Work
As specified on roads listed on the road listing, shown on the plans, marked on the ground or ordered by the Contracting Officer.
A. Maintenance Level 4 and 5 roads The treatment area will be SHOWN ON THE PLANS. If plans or supplemental specifications are not included, the treated area includes the road bed measured from center line to bottom of ditch / or defined road edge, plus an additional 8 feet on each side. If there is no defined road edge, or a ditch does not exist, the treated area is 16 feet from both sides of center line of the road. Provide a vertical clearance of 14 feet measured from the road surface elevation.
B. Maintenance Level 3 roads
The treatment area will be SHOWN ON THE PLANS. If plans or supplemental specifications are not included, the treated area includes the road bed measured from center line to bottom of ditch, or defined road edge, plus an additional 4 feet on each side. If there is no defined road edge, or a ditch does not exist, the treated area is 12 feet from both sides of center line of the road. Provide a vertical clearance of 14 feet measured from the road surface elevation.
C. Maintenance Level 2 roads
The treatment area will be SHOWN ON THE PLANS. If plans or supplemental specifications are not included, the treated area includes the road bed measured from center line to bottom of ditch, or defined road edge, plus an additional 4 feet on each side. If there is no defined road edge, or a ditch does not exist, the treated area is 12 feet from both sides of center line of the road. Provide a vertical clearance of 14 feet measured from the road surface elevation.
D. All roads
Locations of weed infested areas are marked on the ground. Do not operate in the weed infested areas unless ordered to do so by the Contracting Officer.
842.04 Measurement Measurement under this Section will be made by the total number of units for each item listed in the SCHEDULE OF ITEMS completed and accepted.
A. Mile: Work activity will be measured along the centerline of the road regardless of the number of lanes.
842.05 Payment
A. The accepted quantities will be paid at the contract price per unit of measurement for the Section 842 pay items listed in the schedule of items. Payment will be full compensation for the work prescribed in this Section.
Pay Item
Pay Unit
842(1) Vegetation Maintenance Level 4&5 roads
Mile
842(2) Vegetation Maintenance Level 3 roads
842(3) Vegetation Maintenance Level 2 roads
842.06 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 |
| More than 10 trees per mile |
| Treat |
| Treat |
| Horizontal Clearance |
| More than 20% not cleared to limits |
| 20% or less not cleared to limits |
| 0 |
| 10% of ordered length |
| Rework |
| Rework if greater than 10% of ordered length |
| Vertical Clearance |
| More than 20% not cleared to limits |
| 20% or less not cleared to limits |
| 0 |
| 10% of ordered length |
| Rework |
| Rework if greater than 10% of ordered length |
| Height above ground surface |
| More than 20% not cleared to limits |
| 20% or less not cleared to limits |
| 0 |
| 10% of ordered length |
| Rework |
| Rework if greater than 10% of ordered length |
| Drainage |
| Impeded flow or water diverted out of drainage structures. |
| 20% or less impeded, but water will stay in the channel. |
| 0 |
| 5% of ordered length |
| Rework |
| Rework if greater than 5% of ordered length |
| Rework |
| Rework if greater than 10% of ordered length |
| Oversized Material (Level 4&5) |
| 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 than 36" in length remaining on the roadway slopes and drainages or has the potential to move into drainages. |
| 0 |
| 20 pieces per mile |
| Rework |
| Rework if greater than 20 pieces per mile |
| Oversized Material (Level 3) |
| Material greater than 3" diameter and 12" in length remaining on the road surface |
| Material 1” - 3" in diameter and 36" in length 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 |
| 20 pieces per mile |
| Rework |
| Rework if greater than 20 pieces per mile |
| Oversized Material (Level 2) |
| Concentrations of material greater than 6" diameter and 3 feet in length remaining on the road surface |
| Material less than 6" diameter and 3 feet in length remaining on the road surface |
| 0 |
| 20 pieces per mile |
| Rework |
| Rework if greater than 20 pieces per mile |
| Unstable concentrations of material less than 6" diameter and 3 feet in length remaining on the roadway slopes. |
| N/A |
| 0 |
| 20 pieces per mile |
| Rework |
| N/A |
| 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 |
| 20 pieces per mile |
| Rework |
| Rework if greater than 20 pieces per mile |
| Concentrations (Level 3-5) |
| Any concentrations that affect sight distance |
| N/A |
| 0 |
| 0 |
| Rework |
| N/A |
| Work Area Management |
| 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 |
| Working outside of project limits |
| Area contains invasive weeds |
| N/A |
| 0 |
| N/A |
| Repair and treat affected areas as directed by the Contracting Officer |
| N/A |
* Forests have the option to choose a pay reduction in lieu of rework. However, each Forest must establish a threshold where rework is required and define pay reductions for each defect.
842 - ROADWAY VEGETATION MAINTENANCE (03/21/07) 1
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