The US SAH-97 is a hand-held device used to grade or measure gravel and small cobble size bed sediments in the field. Generic names are gravelometers, gravel templates, and pebblemeters.

The unit is constructed from 1/8 inch thick 6061 aluminum alloy and has overall dimensions of 11 by 13.5 inches. The US SAH-97 has 14 square holes of common sieve sizes (1/2-phi unit classes) ranging from 2 mm to 180 mm. Specific sieve sizes are 2, 2.8, 4, 5.6, 8, 11, 16, 22.6, 32, 45, 64, 90, 128, and 188 millimeters in size. There is also a scale along one side that can be used to measure up to 310 mm. The scale is in 10 mm increments.

The hand-held size analyzer effectively produces the same results as sieving.

The US SAH-97 (part number 011000) sells for $30.00 plus a shipping and handling charge of $5 for individual units.

The US SAH-97 can be ordered from the Federal Interagency Sedimentation Project (FISP) by calling (601) 634-2721. Federal offices may use the Government VISA card for payment. FISP will accept purchase orders from State and Local government offices (this includes State schools).

Drawing of the US SAH-97 Sediment Size Analyzer Federal Interagency Sedimentation Project

Photograph of the US SAH-97 Sediment Size Analyzer

Contributed by: Wayne O’Neal, Chief, Federal Interagency Sedimentation Project