About 2,000 feet past the entrance station at Catalina State Park, the main road drops into the Cañada del Oro wash and crosses it on a concrete ford. On a dry morning you drive over it in a few seconds and hardly notice. On Sunday, Nov. 1, it was the reason the whole park closed. Arizona State Parks posted that Catalina State Park was "closed today, November 1, 2026 due to flooding of the Cañada del Oro wash across the main park entrance road."
Every hike in the park depends on that ford. When the wash floods the road, it can close Romero Canyon, the Birding Trail and the Hohokam ruins at the same moment, because all of them are reached from the same road. The ford also has an end date. A seven-span concrete bridge is planned to replace it, with completion expected in May 2027. Until then, the old crossing still controls access for the whole winter hiking season.
One road, one crossing, three trailheads beyond it
Catalina's trails start from three parking areas. Arizona State Parks' trail page measures each one from the Ranger Station:
- Romero Ruins Ramada Parking Lot, 0.8 mile north, on the west side of the road
- Equestrian Center, 1 mile northeast, at the end of the road to the campgrounds
- Main Trailhead, 1.5 miles north, at the end of the main entry road
The park's flood advisory puts the wash crossing between the entrance station and the campground, and the flier warns that flows can't be predicted. Each of the park's best-known hikes begins on the far side. The Canyon Loop, Romero Canyon, Sutherland, the Nature Trail and the Birding Trail start at the Main Trailhead. The 50-Year Trail and the Cañada del Oro Ridge Trail start at the Equestrian Center. The Romero Ruins Interpretive Trail and the Alamo Canyon Loop start at the ramada lot. When the wash runs, the park doesn't close one trail. It closes all of them together.
Why the wash runs harder than it used to
The water reaching the ford comes off slopes that burned in 2020. In its report on the construction, KVOA wrote that vegetation lost in the Bighorn Fire lets heavy rain turn into fast runoff and debris flows across the entrance road. Those flows occasionally force temporary closures or keep campers in the park longer than planned. The park's own flood flier gives the same cause and adds that vehicles in the campground can be unable to leave for days.
It isn't only a monsoon problem, and that matters as the cool season starts. In January 2023, KOLD reported that flooding had closed the park and left about 300 campers stranded. In that report, rangers described these closures as recurring, especially during monsoon season. A winter storm did it that time. The Nov. 1 closure happened in the first days of the season when Catalina's trails are most comfortable to hike.
What replaces the ford
The Arizona Department of Transportation advertised the project for Pima County in June 2026 and opened bids on Aug. 14. The bid advertisement describes the work in plain terms. The existing concrete ford comes out, and a reinforced-concrete slab bridge goes in, built as a seven-span, cast-in-place closed-frame structure. The contract also covers rebuilding the entrance road approaches to meet the new bridge, connecting to the park roads that branch off it, grading the channel and restoring the banks. The contract allows 175 working days.
The bids came in under the state's own number. On the agenda for the State Transportation Board's Sept. 18, 2026 meeting, Hunter Contracting Company was the low bidder out of six at $3,175,119.20. ADOT's estimate for the job was $5,211,036, and the agenda lists the project as 100% state funded. The agenda recommends awarding the contract to Hunter.
Arizona State Parks scheduled the work to begin the week of Oct. 19, 2026, with completion expected in May 2027. According to KVOA, the purpose is to keep park access open during heavy rain. Day use and camping are meant to continue while the bridge is built. Visitors should expect extra noise, construction vehicles, workers and posted detours along the main road where it crosses the Cañada del Oro.
That schedule runs through December to March, the best months for hiking at Catalina, and the ford stays the way in until the bridge is done.
Planning the winter around the ford
Before driving up Oracle Road, check two things: the Catalina State Park page, which posted the Nov. 1 closure notice at the top, and the park office at 520-628-5798. The page also links to Arizona State Parks' Facebook and Instagram accounts. Day-use hours are 5 a.m. to 10 p.m. Entry is $10 for a vehicle with one person, $20 for a vehicle with two to four people, and $5 for someone walking or biking in.
The park's calendar for the next six weeks:
| Date | Event | Where |
|---|---|---|
| Sat., Nov. 7, 3 p.m. | Music in the Mountains: Marana Big PHAT Band, a 20-piece big band playing music from the '60s through the '80s | Trailhead Stage |
| Sat., Nov. 21, 3 p.m. | Music in the Mountains: Ben Tully, '60s and '70s songs plus originals | Trailhead Stage |
| Saturdays, 10 a.m. to 1 p.m. | Saturday Nature Program with live native reptiles, weather permitting | Trailhead Picnic Area |
| Dec. 11 | Star Party | Catalina State Park |
The Trailhead Stage is at the end of the park road, 1.5 miles north of the Ranger Station. Bring a chair. Food and drinks are welcome. A wet week before a concert Saturday is worth a call to the park office before you leave home.
Catalina's trail descriptions warn that winter rains from December through March can create seasonal water crossings on many routes, including the Canyon Loop, the Birding Trail, the Romero Ruins Interpretive Trail and the Sutherland Trail. The same rain that closes the road can give the hikes their best moments once it reopens. On the Canyon Loop, the trail passes under tall sycamore and ash trees in a riparian canyon, and the park writes that it hardly feels like the desert "especially when the creeks are flowing." On Romero Canyon, the first mile is an easy walk to the Montrose Pools overlook. The next 1.8 miles climb steeply through the Pusch Ridge Wilderness to Romero Pools, gaining about 1,000 feet. Plan on at least 5.6 miles and four hours round trip.
Two rules matter more as the calendar turns. Dogs and bicycles are not allowed past the Forest Service gate about a mile up the Romero Canyon and Sutherland trails. From Jan. 1 through April 30, the bighorn sheep lambing season, hikers in the Pusch Ridge Wilderness may not travel more than 400 feet off designated Forest Service trails. The Bridle Trail stays an easy option. It is a flat, shaded 1.4 miles between the Equestrian Center and the Main Trailhead, with a compacted surface that works for strollers, bicycles and wheelchairs.
The 0.8-mile Romero Ruins Interpretive Trail takes less than 30 minutes. It loops through a Hohokam site dating to around 500 AD, which the park calls one of the largest prehistoric settlements in the Tucson basin, and passes the standing foundation of the late-1800s Romero homestead. At the Main Trailhead, the Friends of Catalina State Park are finishing phase three of a mosaic tile mural of Sonoran Desert plants and animals. They fund park improvements by selling personalized donor tiles through FriendsCSP.org.
Back down Oracle Road
From the park entrance, a few places on North Oracle Road are a short drive south. Fork & Fire Smokehouse + Taproom, at 11835 N. Oracle Road, Suite 101, at Oro Valley Marketplace, is open daily from 11 a.m. to 9 p.m. Charred Pie, at 12125 N. Oracle Road, Suite 105, serves from 11:30 a.m. until 8 p.m. Sunday through Thursday and until 9 p.m. on Friday and Saturday. Bloom Tea, at 12115 N. Oracle Road, Suite 145, is in the same center. For an early start, Savaya Coffee Market at 11177 N. Oracle Road opens at 7 a.m. daily and closes at 3 p.m.
On a morning when the park page shows a closure, these same addresses still work as a plan B.
Catalina State Park is part of what makes Oro Valley home for many of us at the Brenda O'Brien Team, and we'll keep watching the bridge work through spring. If you have questions about life near the park, or about the Oracle Road corridor that leads to it, please reach out. We're always happy to talk about this part of town.
