Yes, you can go up past Sundance & when you reach the top take the right fork down to Cascade Springs. You can't come over the hill from Heber anymore,but it appears they are redoing that road so you will be able to next year
We just went last week up through American Fork canyon side, an no problem driving to the upper lot. The road to lower lot is still closed, but the closure is just after upper lot. We drove back same way we came, so no knowledge of the access past Sundance
We went there in mid September coming from SLC using Alpine loop ( Route 92) and then take left on 114 for cascade spring.
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