BRIDGE CURBING

Williams Stone Company offers a complete line of bridge curbing fabricated at our East Otis facility. It is available predrilled for anchors in straight and curved curbing, as well as in a variety of sizes and finish treatments, as follows:

Standard Sizes

Bridge curbing can be provided in a variety of lengths. See our bridge curb section of our detail drawings page for the following state specifications:

• Connecticut: 6"x 9½" or 12" bridge curb, straight & radius, manufactured in accordance with M.12.06 of the State of Connecticut Department of Transportation Standard Specifications for Highways and Bridges.
  
  
• Massachusetts: 6" x 8" granite bridge curb, straight & radius, manufactured in accordance with M9.04.1, section 501.66 of the Commonwealth of Massachusetts Department of Public Works Standard of Specification for Highways and Bridges.
  
  
• New York State:
  • NYS F-1, 5" x 5.5" [IN STOCK]
  • NYS G-1, 5" x 7.5
  • NYS R-1, 9" x 13.5"

For states requiring different specifications, contact Williams Stone Company. We can easily meet your requirements.

Finish Options

The standard finish for bridge curbing is sawn top, split face. However, in addition to these standard finishes, any of the following may be custom ordered:

• Sawn top (standard): the top of the curb has a smooth finish created by saw cutting.
  
  
• Split face: the face of the curb has a rough finish created by being split.
  
  
• Thermal top: the top of the curb has a finish created by being sawn, then braised with a blow torch to roughen the surface to give it a safer, sandpaper-like surface.
  
  
• Sawn face: the face of the curb has a smooth finish created by saw cutting. Not available on radius curves. Note that sawn faces can also be thermaled with a blow torch to roughen the surface to give it a sandpaper-like surface.
  
  
• Thermal face: the face of the curb has a finish created by being split or sawn, then braised with a blow torch.
  
  
• Clean back: protrusions greater than 1/4-inch are removed using hand tools to create a smoother surface and stay within tolerance. This is the standard back finish for bridge curbing.
  
  
• Sawn back: provides the ultimate clean back; available on vertical straight curb only.

Edge Detail Options

There are five basic edge details that may be specified to the exposed edges of a bridge curb:

• Straight edge (standard).
  
  
• Rounded edge: one or both edges are chamfered and then rounded off to 1/2-inch or greater radius.
  
  
• Chamfer: 45-degree bevel is standard, 1/2", 3/4" or 1".
  
  
• Buzzed edge: 1/4-inch chamfer (or eased) edge.
  
  
• Beveled mountable: 45-degree chamfer is standard, up to 3" x 3", 4" x 4", or 5" x 5".

Joint Options

There are three basic joint options available for bridge curbing:

• Full: a straight cut with 90-degree angles at top and bottom. Unless otherwise specified, this joint is considered standard.
  
  
  
  
• Mitered: an angled cut, top to bottom of curb reveal, allowing the end of one curb piece to butt into the face of another curb.
  
  

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