San Pedro River

To provide comments on this watershed for consideration in the Floodplain Management Plan, contact Greg Saxe
Planning Manager
(520) 724-4633.
The San Pedro River originates in Mexico and flows through Co-chise County prior to entering Pima County. Near Pima County, it drains the eastern slopes of the Rincon and Santa Catalina mountains and western slopes of the Galiuro Mountains. The San Pedro exits Pima County into Pinal County south of the community of San Manuel. Though it is one of the largest watercourses in Pima County, the remote and rural nature of this area means that few people are impacted by flooding on the San Pedro River and its tributaries. Within Pima County, this watershed is comprised of 181,901 acres and contains 3,231 acres of SFHA, 1,674 acres of locally identified floodplain and 15,438 acres of Pima County Regulated Riparian Habitat.

Flood Hazards


Watershed Map
Outreach Brochure 
Hazard Map 

Floodplain Studies

There are currently no floodplain studies in this watershed other than those conducted by FEMA that are provided on the Flood Insurance Rate Maps.

Erosion Studies

There are currently no erosion studies in this watershed.

Step 6 - Floodplain Management Plan Goals

Floodplain Management Plan Goals

Recommendation of Actions and Floodplain Management Strategy

San Pedro River Action Plan Map

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Regional Flood Control District

201 N. Stone Avenue, 9th Fl.
Tucson, AZ 85701

Phone: (520) 724-4600
Fax: (520) 724-4621

Customer Service Hours:
8:00AM - 4:00PM

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