Table 1.

American elm characteristics/ratings and CTLA benefit values (in U.S. dollars) for the tree now and at the end of the 8-year maintenance program.

Value/ratingExisting tree nowExisting tree 8 years from now
Base valuez$36 per in2$44 per in2
Trunk area2,076 in22,110 in2
Species rating70%70%
Condition rating49%43%
Location rating60%60%
CTLA value$15,380y$16,767

  • ↵z Base values are expected to increase at the rate of 2.5% per year, or 36(1.025)8 = $44.

  • ↵y Calculated as $36 per in2 × 2,076 in2 × 0.7 × 0.49 × 0.6 = $ 15,380.