Edmonton Valley Zoo opened in 1959, was initially called Storyland Valley Zoo, and struggled for decades in terms of both funding, annual memberships and visitor apathy. In the recent history of the facility the number of visitors has risen from approximately 250,000 to more than 400,000 annually. Here is a very interesting interview (from 2015) with zoo director Denise Prefontaine about the transformation of the Edmonton Valley Zoo:
A River Runs Through It: the Wander Trail at Edmonton Valley Zoo blooloop
I grew up in Edmonton, visiting the zoo on a consistent basis, and when I went back for a tour in 2001 the zoo was in a shocking condition with many atrocious exhibits. Since then there has been a radical rejuvenation, beginning with the lemur complex called Makira Outpost. I went back again in 2012 and saw the fantastic pinniped area called Arctic Shores (2012) and then I was back again this week and viewed the unique and innovative Wander Trail that opened in 2014. That last section uses the North Saskatchewan River as a starting point and included in the project is a new entrance, entry plaza, education building, gift shop, cafe, river otter exhibit, trout pool, fake beaver dam and a "glacier melt play area" that my 4 kids spent almost an hour at.
There is a small stream that trickles its way through this amazing and hugely popular nature-based play area:
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Next up is Nature's Wild Backyard, a project that could easily cost $45 million, even though this blueprint map lists the cost at $25 million:
Nature's Wild Backyard at Edmonton Valley Zoo
There is a lot of information on the link below, including news of the 2018 debut of a Red Panda exhibit and Urban Farm zone:
Valley Zoo Development Society | Revitalization | Nature's Wild Backyard
When Nature's Wild Backyard is finished (current date is set at 2021) then the Edmonton Valley Zoo will have undergone a radical change in direction and my best estimate would be that 50% of what was once a dilapidated zoo will have been essentially built from scratch over a period of about 15 years.