We recently met with our partners at the Arizona Game and Fish Department to compare and share our wildlife camera data from the Oracle Road wildlife crossings in Oro Valley. CSDP monitored this site from 2012 to 2025, documenting wildlife movement between the Catalina and Tortolita Mountains before and after the crossings were built in 2016. Arizona Game and Fish monitored the crossings from 2016 to 2021.

As we reviewed the last eight years of data together, we realized that CSDP had been accidentally using the wrong number. We’ve often said these crossing structures see about 2,000 wildlife crossings per month, but the correct figure is an average of 3,500 crossings per year across the two structures.

It turns out that early in the project, the average was 2,000 crossings per year (roughly 200 per month). Somewhere along the way, that figure was confused as a monthly average and the error stuck.

The good news is that these crossings remain a strong success story. Plus, now we know for sure that their usage has actually increased over time.

An average of 3,500 crossings per year for only two structures is an impressive outcome! To put it in perspective, the widely successful SR93 bighorn sheep crossings (three overpasses and three culverts) have an average of 200 crossings each per year (800-900 per year total).

The Oracle Road wildlife crossings continue to do exactly what they were designed to: reconnect habitat, drastically reduce wildlife-vehicle collisions, and provide safe passage for thousands of animals each year. We’re glad to have the most up to date information, and we appreciate everyone who has followed and supported this project over the years.