Narrow Pavement Widening - San Angelo District

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This presentation highlights highway pavement widening practices in the San Angelo District. Please remember to cite this research if the information you find here is used.

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Narrow Pavement Widening - San Angelo District

  1. 1. San Angelo District Experience Project 0-6748: Narrow Pavement Widening
  2. 2. Overview •Maintenance Experience •Construction Projects 2
  3. 3. San Angelo District
  4. 4. Energy Sector
  5. 5. Energy Sector
  6. 6. Edge Drop Offs
  7. 7. Edge Drop Offs
  8. 8. Traditional Method
  9. 9. Scope of Work W = 2 – 3 ft D = 6 – 8 in TY A LRA (Black Base)
  10. 10. Bonnell Road Widener Cost = $2000
  11. 11. Road Widener
  12. 12. In-House Device
  13. 13. Road Widener
  14. 14. Road Widener
  15. 15. In-House Device
  16. 16. In-House Device
  17. 17. Belly Dump
  18. 18. Side Discharge Conveyor
  19. 19. Side Discharge Conveyor
  20. 20. Side Discharge Conveyor
  21. 21. Side Discharge Conveyor
  22. 22. Level Material
  23. 23. Compaction
  24. 24. Compaction
  25. 25. Compaction
  26. 26. Compaction
  27. 27. Finished Product
  28. 28. Finished Product
  29. 29. Maintenance Experience •Material Cost: $20,000 / Lane Mile •Production: ½ Lane Mile / Day
  30. 30. Construction Project
  31. 31. Project STP 2012(456) HRR, ETC. CSJ: 0554-01-031, ETC. Highway: RM 336, ETC. County: Real Length: 24.673 mi Cost: $3,573,173.63 Area Engineer: R. Lewis Nowlin, P.E. Contractor: Allen Keller Company
  32. 32. Limited Work Area
  33. 33. Limited Work Area
  34. 34. Existing: 18 ft to 20 ft Wide
  35. 35. Scope of Work: Add 3’ w/ 6:1 Base Taper 3 ft
  36. 36. ROADTEC RX-600e
  37. 37. Step 1: Mark Cut Line
  38. 38. Step 2: Mark Cross Slope
  39. 39. Step 3: Blade Existing Grass Off
  40. 40. Step4: RemoveExistingMaterial6” Deep and 6.5’ Wide
  41. 41. ROADTEC Miller in Operation
  42. 42. Provides Clean Cut
  43. 43. Mills Through Existing Rock
  44. 44. Mills Through Existing Rock
  45. 45. Step 5: Haul Off ExcavatedMaterial
  46. 46. Step 6: Compact Existing Subgrade
  47. 47. Step 7: Dump Pre-Wet Flexbase
  48. 48. Step 8: Process Flexbase
  49. 49. Step 9: Prime with RC-250 Asphalt and Gr 5 Aggregate Overlap joint 6 in Prime front slope
  50. 50. RemainingWork: PlaceFinal SealCoat
  51. 51. RemainingWork: PlaceFinal SealCoat
  52. 52. ProjectSTP 2012(456)HRR, ETC. Project Cost: $145,000 / Mile

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