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Mississippi DOT Mississippi DOT
Roadsides, Drainage & Roadsides, Drainage & Vegetation Management Vegetation Management
StandardsStandards
MDOT Maintenance Condition MDOT Maintenance Condition Survey InformationSurvey Information
Old Jorgenson System (stolen from Florida)Old Jorgenson System (stolen from Florida) Survey MS, US & Interstate Highways Survey MS, US & Interstate Highways Do not survey county roads or city streetsDo not survey county roads or city streets MDOT Maintained Inventory – 14,000 MilesMDOT Maintained Inventory – 14,000 Miles Samples are one (1) mile in lengthSamples are one (1) mile in length 240 samples surveyed each year – 1.7% of 240 samples surveyed each year – 1.7% of
the system the system 20 per district every 6 months20 per district every 6 months Weighted per district by highway typeWeighted per district by highway type
Survey ProceduresSurvey Procedures
Survey Team MembersSurvey Team MembersMaintenance DivisionMaintenance DivisionDistrict Office RepresentativeDistrict Office RepresentativeCounty Supervisor and/or Area County Supervisor and/or Area
SuperintendentSuperintendentMaintenance Condition StandardsMaintenance Condition StandardsMaintenance Condition Survey FormMaintenance Condition Survey FormReporting Reporting
Maintenance Condition Maintenance Condition StandardsStandards
PavementPavementRoadsideRoadsideTraffic ServicesTraffic ServicesDrainageDrainageVegetation & AestheticsVegetation & AestheticsBridgesBridges
Roadside StandardsRoadside Standards
Shoulder (Un-Paved)Shoulder (Un-Paved)No shoulder drop-off greater than 2”No shoulder drop-off greater than 2”No deviations greater than 4” below or No deviations greater than 4” below or
2” above original design2” above original designPass/FailPass/Fail
Front SlopeFront SlopeNo ruts or washouts greater than 6” in No ruts or washouts greater than 6” in
depthdepthPass/FailPass/Fail
Roadside Standards (Cont.)Roadside Standards (Cont.)
Back SlopeBack SlopeNo ruts or washouts greater than 12” in No ruts or washouts greater than 12” in
depthdepthNo erosion onto adjacent propertyNo erosion onto adjacent propertyPass/FailPass/Fail
TurnoutTurnoutNo ruts, potholes or washouts greater No ruts, potholes or washouts greater
than 4” in depththan 4” in depthPass/FailPass/Fail
Maintenance Condition Maintenance Condition StandardsStandards
PavementPavementRoadsideRoadsideTraffic ServicesTraffic ServicesDrainageDrainageVegetation & AestheticsVegetation & AestheticsBridgesBridges
Drainage StandardsDrainage Standards
Storm SewerStorm SewerCross- sectional area is not restricted Cross- sectional area is not restricted
more than 10%more than 10%Pass/FailPass/Fail
Side DrainSide Drain•Cross- sectional area is not restricted more Cross- sectional area is not restricted more than 20%than 20%•Pass/FailPass/Fail
Cross DrainCross Drain•Cross- sectional area is not restricted Cross- sectional area is not restricted more than 15%more than 15%•Pass/FailPass/Fail
Ditch Bottom InletDitch Bottom Inlet•No obstruction of openings more than No obstruction of openings more than 15%15%•Pass/FailPass/Fail
Roadside DitchRoadside Ditch•Standard ditch bottom not less than 2.5 Standard ditch bottom not less than 2.5 feet below the edge of pavement.feet below the edge of pavement.•Pass/FailPass/Fail
Curb InletCurb Inlet•No obstruction of openings more than No obstruction of openings more than 10%10%•Pass/FailPass/Fail
Drainage Standards (Cont.)Drainage Standards (Cont.)
Median DitchMedian Ditch Standard ditch bottom not less than 2 feet Standard ditch bottom not less than 2 feet
below the edge of pavement.below the edge of pavement. Pass/FailPass/Fail
Outfall DitchOutfall Ditch Outfall functioning as originally designedOutfall functioning as originally designed Pass/Fail Pass/Fail
Misc. Drainage Structure (paved ditch, Misc. Drainage Structure (paved ditch, flumes, French drain, edge drain)flumes, French drain, edge drain) Pass/FailPass/Fail
Drainage Standards (Cont.)Drainage Standards (Cont.)
Roadway SweepingRoadway SweepingMaterial Accumulation > ¾” in traveled Material Accumulation > ¾” in traveled
way or 2 ¼” in gutterway or 2 ¼” in gutterPass/FailPass/Fail
Maintenance Condition Maintenance Condition StandardsStandards
PavementPavementRoadsideRoadsideTraffic ServicesTraffic ServicesDrainageDrainageVegetation & AestheticsVegetation & AestheticsBridgesBridges
Vegetation & AestheticsVegetation & Aesthetics
Roadside MowingRoadside Mowing Grass no higher than 10” (Multi-Lane Facilities)Grass no higher than 10” (Multi-Lane Facilities) Grass no higher than 18” (All other routes)Grass no higher than 18” (All other routes) Grass height not less than 4”Grass height not less than 4” Pass/FailPass/Fail
Slope MowingSlope Mowing Grass no higher than 10” (Multi-Lane Facilities)Grass no higher than 10” (Multi-Lane Facilities) Grass no higher than 18” (All other routes)Grass no higher than 18” (All other routes) Grass height not less than 4”Grass height not less than 4” Pass/FailPass/Fail
Vegetation & Aesthetics Vegetation & Aesthetics (Cont.)(Cont.)
LandscapingLandscaping Vegetation is maintained in a healthy, Vegetation is maintained in a healthy,
attractive conditionattractive condition Pass/FailPass/Fail
Tree TrimmingTree Trimming Tree limbs no lower than 14.5’ over travelway, Tree limbs no lower than 14.5’ over travelway,
shoulder, clear zoneshoulder, clear zone Tree limbs no lower than 10’ over sidewalkTree limbs no lower than 10’ over sidewalk No dead or dying trees over or adjacent to No dead or dying trees over or adjacent to
travelway that could prove to be hazardoustravelway that could prove to be hazardous Pass/FailPass/Fail
Vegetation & Aesthetics Vegetation & Aesthetics (Cont.)(Cont.)
Curb/Sidewalk EdgeCurb/Sidewalk Edge Grass or debris encroaches on sidewalk no more than 4”Grass or debris encroaches on sidewalk no more than 4” Adjacent Grass no more than 2” below nor 4” above top Adjacent Grass no more than 2” below nor 4” above top
of curb or sidewalkof curb or sidewalk Pass/FailPass/Fail
Litter RemovalLitter Removal No more than 100 visible pieces (Multi-Lane)No more than 100 visible pieces (Multi-Lane) No more than 50 visible pieces (2-Lane)No more than 50 visible pieces (2-Lane) Pass/FailPass/Fail
Turf ConditionTurf Condition Sparse turf, contains high percentage of undesirable Sparse turf, contains high percentage of undesirable
noxious or broadleaf weedsnoxious or broadleaf weeds Pass/Fail Pass/Fail
SummarySummary
Current Maintenance Condition Current Maintenance Condition Standards in place since the late Standards in place since the late 1980’s1980’s
Survey Results not tied to budgetSurvey Results not tied to budgetNo penalty for standard failuresNo penalty for standard failuresAnnual Report with results developed Annual Report with results developed
by Maintenance Divisionby Maintenance DivisionLooking to Update Survey and MMS in Looking to Update Survey and MMS in
the near future.the near future.
Questions???Questions???