Ross Dam

Overview

Ross Dam (more formally Lake Ross / Ross River Dam) is a beginner-to-intermediate mountain bike trail network on the foreshore of Townsville's main drinking-water reservoir, about 30 km south-east of the CBD. The land is owned by Townsville City Council (Townsville Water) and sits inside the city's drinking-water catchment, so access is not open to the general public — rangers patrol and issue fines. Trail access is permitted only to current Townsville Rockwheelers Mountain Bike Club members under a Special Access agreement, on weekends and public holidays.

Riding character is classic North Queensland XC: flowy single-track along the lake foreshore with steep pinch climbs, rocky creek crossings and the occasional rock drop. The Rockwheelers describe it as their "beginner network", offering a progression layer below the more technical Douglas Reserve and Mount Stuart networks elsewhere in town. The area has hosted the long-running HotRock 24-hour (late May) and Dam Dark 12-hour (late November) endurance races — both genuinely iconic on the Queensland calendar.

Operationally the site is a bit of a special case: trails were closed for an extended period after the February 2019 monsoon flooding (the dam hit 232% of capacity), and parts of the Lake Ross precinct have been intermittently closed since for water-safety reasons (most recently February 2025 when the dam was deemed unsafe for public access, and January 2026 when the radial gates were preparing to open during wet-season inflows). Always check the Rockwheelers site before driving out.

Location & Access

Address: Ross River Dam, Kelso, Townsville QLD 4815
Region: Townsville (North Queensland / Dry Tropics)
Drive times: ~30–35 min from Townsville CBD; ~6 hr from Cairns; ~13 hr from Brisbane
Public transport: No useful PT — car only. Members park in the public car park at Ross Dam Park (Riverway side of the dam wall).
Parking: Sealed public car park at Ross Dam Park; no parking permitted on private/operations roads
Coords: -19.325527, 146.739634 (verified against Google Maps — matches Ross Dam Park, Kelso)

Best Season & Conditions

Peak riding season: Dry season — April through September. Mornings are cooler; afternoons can hit 35°C+ even mid-winter.
Wet-weather impact: Trails are explicitly closed during wet weather without Townsville Water Ranger approval. Wet-weather signage at the trailhead is binding.
Fire-danger / total-fire-ban impact: No explicit TFB closure published, but use common sense — the catchment is dry-tropics savannah and burns fast.
Snow / alpine season: N/A
School-holiday surge: Members-only access dampens crowding; the network is rarely busy outside event days.
Wet-season caution: January–March monsoon can flood the dam (2019 reached 232%, 2025–26 wet season saw repeated overtopping events). Always check Rockwheelers + Council disaster dashboard before travel.

Managing Body & Trail Builders

Land manager: Townsville Water (Townsville City Council) — drinking-water catchment
Trail builder / maintainer: Townsville Rockwheelers Mountain Bike Club Inc. under Special Access agreement
Volunteer / dig days: Member-organised via the club; details on the Rockwheelers Facebook / contact-us page
Donations / membership: Membership required for trail access — sign up via rockwheelers.com.au; a current AusCycling/MTBA recreation or competition licence is also required

History & Background

Ross River Dam was constructed 1971–1974 by Leighton Contractors, with Stage II expansion in 1986 and a major
20m upgrade in 2006–08 that added three hydraulically operated radial spillway gates.
The embankment is 8.67 km long and 34.4 m high — reportedly the longest embankment dam in the southern hemisphere — and supplies ~85% of Townsville's potable water from a 750 km² catchment.
MTB use of the foreshore predates the 2019 flood by well over a decade, with the Rockwheelers building and maintaining the trail network under a Special Access agreement with Townsville Water.
Major events historically hosted at Ross Dam include the HotRock 24-hour (described in Ride On as "north Queensland's first day/night race") and the Dam Dark 12-hour (a late-November endurance event with a notorious 3am "nude lap"). Both are entry points for non-members to legally ride the network.
The site was closed following the 2019 monsoon (dam reached 232% capacity, the worst flooding in Townsville since 1998).
In 2021 the council adopted a draft Mountain Bike Strategy 2021–2023, which acknowledged Ross River Dam alongside Douglas and Mount Stuart as the three pillars of the Rockwheelers' trail portfolio.
A 2024 three-stage council plan proposed re-opening Lake Ross to broader non-contact recreation (fishing, walking from June 2024, then boating from June 2025) — implementation status mixed because of repeated wet-season closures.