Rehabilitation is necessary when severe conditions or circumstances have made roads impassable. Installation of water lines, gas lines or drainage systems necessarily disrupt transportation, making road rehabilitation necessary. The degree of rehabilitation is determined by road conditions prior to the disruption, and the extent to which the road must be improved to sustain future traffic requirements. These methods, from lowest to highest costs per linear foot, are 

  • Microsurfacing (M),
  • Leveling & Microsurfacing (LM I, LM II)
  • Mill & Overlay (MO), and 
  • Full-Depth Reclamation (FDR).

Full Depth Reclamation

Full Depth Reclamation (FDR) is an economical, in-place recycling alternative to road reconstruction. It uses a powerful reclaiming machine to turn an old asphalt pavement into a road base by uniformly pulverizing that full thickness of the old pavement and blending it with a portion of underlying material. This process usually adds bituminous emulsion, chemical or mechanical stabilization agents to enhance the strength of the new base that is sealed with an asphalt friction course or a sealing treatment, depending on expected loads. The process allows for correcting drainage and cross slope problems, as well as widening the roadway.

It makes sense when a pavement can't be salvaged with milling, overlaying, or recycling techniques due to severe pavement defects, poor drainage, or an inadequate base.

Road Reclamation is not needed when the existing pavement can be preserved with lesser interventions, such as a Milling and Overlay process.

See Pictures of Full Depth Reclamation

Mill and Overlay

A “mill & overlay” is a street maintenance technique that requires the removal of the top layer (2 inches) of a street by the grinding action of a large milling machine. After the top layer is removed (see below), a new layer of bituminous pavement is put in its place. 

Rehabilitation Pavement Programs 2017/2018

Old Oaken Bucket Rd 6300 LF MO
First Parish Rd 2200 LF MO
Cross St 
(Old Oaken bucket to Winter St)
4500 LF MO
Central St  4850 LF MO
Mount Blue St 6500 LF MO
Chittenden Lane 2650 LF LM II
Shrine Rd 3100 LF LM II
May Elm Lane 1300 LF LM II
Farrar Farm Rd 2820 LF LM II
Barstow Ave 2210 LF LM II
Copeland Tannery Dr 700 LF LM II
Simon Hill Rd 2000 LF LM I
Wildcat Lane (Photos) 6500 LF FDR
Captain Vinal Way  2150 LF LM I
Black Pond Hill Rd 1650 LF LM I
Vinal School Parking Lot    MO
Total Approximately 9.5 Miles of Road  


  • Microsurfacing 
  • LM Leveling & Microsurfacing 
  • MO Mill & Overlay
  • FDR Full-Depth Reclamation
  • LF Linear Feet

For definitions, please see Paving Management Treatments 

Leveling and Microsurfacing

Microsurfacing is structural asphalt overlay intended to provide strength to the existing asphalt roadway and to provide a new wearing surface. This is a more expensive and extensive repair than preventative maintenance.

Leveling: A road can be made even more competent by adding a leveling course. A bonding agent is applied to the existing surface and approximately 1.5 to 2 inches of conventional asphalt is installed. This treatment involves minor patching and crack sealing, however, the adjustment of cast iron structures is also required.

See Pictures of Leveling and Microsurfacing