Curve Numbers for Specific Land Uses

[Crystalct1]

Has anyone seen a curve number table that assigns curve numbers to speciic land use categories? I've googled it, but only found the basic TR-55 list that says for example
A B C D
Woods 36 60 73 79 for fair coverage.


but what I need is

deciduous wooded wetlands
mixed forest (>50% coniferous with 10-50% crown closure)
athletic fields


and so on. It is really taking me a long time to decide where on the so basic list in TR-55 that each one pertains.

Perhaps someone has already done this?

 

[jgailla]

I would determine which CN fit each different use best and then use a weighted average. There does seem to be some amount of judgement as the items in the TR-55 don't always directly correspond to actual conditions.

 

[env21tech]

Depends on the type of vegetation on the forest floor,the slope of the forest floor, and the soil codition (dry, moist, wet).
Any CN you use will be an engineering estimate.
Flip a coin. Heads = 40, tails = 60.