Mississippi DOT Roadsides, Drainage & Vegetation Management Standards
MDOT Maintenance Condition Survey 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 streets Do not survey county roads or city streets MDOT Maintained Inventory – 14,000 Miles MDOT Maintained Inventory – 14,000 Miles Samples are one (1) mile in length Samples are one (1) mile in length 240 samples surveyed each year – 1.7% of the system 240 samples surveyed each year – 1.7% of the system 20 per district every 6 months 20 per district every 6 months Weighted per district by highway type Weighted per district by highway type
Survey Procedures Survey Team Members Survey Team Members Maintenance Division Maintenance Division District Office Representative District Office Representative County Supervisor and/or Area Superintendent County Supervisor and/or Area Superintendent Maintenance Condition Standards Maintenance Condition Standards Maintenance Condition Survey Form Maintenance Condition Survey Form Reporting Reporting
Maintenance Condition Standards Pavement Pavement Roadside Roadside Roadside Traffic Services Traffic Services Drainage Drainage Vegetation & Aesthetics Vegetation & Aesthetics Bridges Bridges
Roadside 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 2” above original design No deviations greater than 4” below or 2” above original design Pass/Fail Pass/Fail Front Slope Front Slope No ruts or washouts greater than 6” in depth No ruts or washouts greater than 6” in depth Pass/Fail Pass/Fail
Roadside Standards (Cont.) Back Slope Back Slope No ruts or washouts greater than 12” in depth No ruts or washouts greater than 12” in depth No erosion onto adjacent property No erosion onto adjacent property Pass/Fail Pass/Fail Turnout Turnout No ruts, potholes or washouts greater than 4” in depth No ruts, potholes or washouts greater than 4” in depth Pass/Fail Pass/Fail
Maintenance Condition Standards Pavement Pavement Roadside Roadside Traffic Services Traffic Services Drainage Drainage Drainage Vegetation & Aesthetics Vegetation & Aesthetics Bridges Bridges
Drainage Standards Storm Sewer Storm Sewer Cross- sectional area is not restricted more than 10% Cross- sectional area is not restricted more than 10% Pass/Fail Pass/Fail
Side Drain Cross- sectional area is not restricted more than 20%Cross- sectional area is not restricted more than 20% Pass/FailPass/Fail
Cross Drain Cross- sectional area is not restricted more than 15%Cross- sectional area is not restricted more than 15% Pass/FailPass/Fail
Ditch Bottom Inlet No obstruction of openings more than 15%No obstruction of openings more than 15% Pass/FailPass/Fail
Roadside Ditch Standard ditch bottom not less than 2.5 feet below the edge of pavement.Standard ditch bottom not less than 2.5 feet below the edge of pavement. Pass/FailPass/Fail
Curb Inlet No obstruction of openings more than 10%No obstruction of openings more than 10% Pass/FailPass/Fail
Drainage Standards (Cont.) Median Ditch Median Ditch Standard ditch bottom not less than 2 feet below the edge of pavement. Standard ditch bottom not less than 2 feet below the edge of pavement. Pass/Fail Pass/Fail Outfall Ditch Outfall Ditch Outfall functioning as originally designed Outfall functioning as originally designed Pass/Fail Pass/Fail Misc. Drainage Structure (paved ditch, flumes, French drain, edge drain) Misc. Drainage Structure (paved ditch, flumes, French drain, edge drain) Pass/Fail Pass/Fail
Drainage Standards (Cont.) Roadway Sweeping Roadway Sweeping Material Accumulation > ¾” in traveled way or 2 ¼” in gutter Material Accumulation > ¾” in traveled way or 2 ¼” in gutter Pass/Fail Pass/Fail
Maintenance Condition Standards Pavement Pavement Roadside Roadside Traffic Services Traffic Services Drainage Drainage Vegetation & Aesthetics Vegetation & Aesthetics Vegetation & Aesthetics Vegetation & Aesthetics Bridges Bridges
Vegetation & Aesthetics Roadside Mowing Roadside 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/Fail Pass/Fail Slope Mowing Slope 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/Fail Pass/Fail
Vegetation & Aesthetics (Cont.) Landscaping Landscaping Vegetation is maintained in a healthy, attractive condition Vegetation is maintained in a healthy, attractive condition Pass/Fail Pass/Fail Tree Trimming Tree Trimming Tree limbs no lower than 14.5’ over travelway, shoulder, clear zone Tree limbs no lower than 14.5’ over travelway, shoulder, clear zone Tree limbs no lower than 10’ over sidewalk Tree limbs no lower than 10’ over sidewalk No dead or dying trees over or adjacent to travelway that could prove to be hazardous No dead or dying trees over or adjacent to travelway that could prove to be hazardous Pass/Fail Pass/Fail
Vegetation & Aesthetics (Cont.) Curb/Sidewalk Edge Curb/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 of curb or sidewalk Adjacent Grass no more than 2” below nor 4” above top of curb or sidewalk Pass/Fail Pass/Fail Litter Removal Litter 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/Fail Pass/Fail Turf Condition Turf Condition Sparse turf, contains high percentage of undesirable noxious or broadleaf weeds Sparse turf, contains high percentage of undesirable noxious or broadleaf weeds Pass/Fail Pass/Fail
Summary Current Maintenance Condition Standards in place since the late 1980’s Current Maintenance Condition Standards in place since the late 1980’s Survey Results not tied to budget Survey Results not tied to budget No penalty for standard failures No penalty for standard failures Annual Report with results developed by Maintenance Division Annual Report with results developed by Maintenance Division Looking to Update Survey and MMS in the near future. Looking to Update Survey and MMS in the near future.
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