<p>A curb marking gage having a generally L-shaped frame upon which are mounted a plurality of vertically oriented wheels adapted to roll over the top surface of a curb construction and a plurality of horizontally oriented wheels adapted to be rollable over the side surface of the curb construction. A depth marking assembly is adjustably mounted on the frame and incorporates a vertical arm having a scale inscribed thereon for height gaging purposes. A paint container mounts at the bottom of the scale and feeds paint peripherally outwardly to a circular brush which is arranged for rotation relative to the frame for curb marking purposes. The paint container is pivotally mounted and spring biased to continuously urge the circular brush against the curb during all periods of use.</p>