Arivaca Creek

To provide comments on this watershed for consideration in the Floodplain Management Plan, contact Greg Saxe
Planning Manager
(520) 724-4633.
The Arivaca Creek watershed is a tributary to Altar Wash originating near the historic community of Ruby and passing through the Village of Arivaca. Its confluence with Altar Wash is near west Arivaca-Sasabe Road. Within Pima County, it is comprised of 70,982 acres. This watershed is generally sparsely populated, but its waters can rise quickly and become a significant hazard. There are numerous at-grade road crossings on Arivaca Road and elsewhere that could pose a serious threat to life when water is flowing in the many tributaries. With few alternate routes around flooded roadways, wait for floodwaters to recede before driving through these areas. Flows will gener-ally recede fairly quickly. This watershed contains 3,231 acres of SFHA and 10,872 acres of Pima County Regulated Riparian Habitat.

Flood Hazards

Maps

Click HERE to view the watershed map
Click HERE to view the outreach brochure

Floodplain Studies

Floodplain Study FP-001-1972 - Drainage Report for Arivaca Area Plan, Blanton & Co. 3/21/1972.

Erosion Studies

There are currently no erosion studies in this watershed.

Areas of Interest (Known Issues, Gaps, Problems and Needs)

Issues Provided by Public and Stakeholder Input

No issues have been identified to date.

Issues from the District Flood Response Manual

8.3.1 Data Gathering Needs
• No site specific issues identified.

8.3.2 Frequently Flooded Structures and Properties Subject to Damage
• No site specific issues identified.

8.3.3 Infrastructure
• No site specific issues identified.

8.3.4 Safety Concerns
• The dam containing Arivaca Lake is deficient. (T22S R11E Sec. 07)
• Arivaca Road at Proctor Wash is an at-grade crossing and may be impassable even after flow events due to sediment and debris deposits on the roadway. This location is within Santa Cruz County but Arivaca Road provides access to portions of Pima County. (T20S R12E Sec. 05)
• Arivaca Road at Batamote Wash is an at-grade crossing and may be impassable even after flow events due to sediment and debris deposits on the roadway. This location is within Santa Cruz County but Arivaca Road provides access to portions of Pima County. (T20S R12E Sec. 06) 

Recommendation of Actions and Floodplain Management Strategy

This section to be completed based on feedback received through the planning process.