Rincon Creek

To provide comments on this watershed for consideration in the Floodplain Management Plan, contact Greg Saxe
Planning Manager
(520) 724-4633.
The Rincon Creek’s headwaters originate high in the Rincon Mountains near Rincon Peak over 8,000 feet above mean sea level and passes through Rincon Valley to its confluence with Pantano Wash. The presence of water and connectivity between the Rincon Mountains and Tucson Basin make the Rincon Valley a popular wildlife corridor. This watershed is comprised of 52,622 acres and contains 1,450 acres of SFHA, 742 acres of locally identified floodplain and 3,978 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

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.

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

8.11.1 Data Gathering Needs
• Little is known about the timing of Rincon Creek flooding downstream of the stream gage. If in the area pre-crest, watch for the flood crest at Camino Loma Alta. (T15S R16E Sec. 14)
• Little is known about the timing of Rincon Creek flooding downstream of the stream gage. If in the area pre-crest, watch for the flood crest at Old Spanish Trail. (T15S R16E Sec. 08)

8.11.2 Frequently Flooded Structures and Properties Subject to Damage
• 6810 S. Avenida de la Potranca (205-81-0230) (Ranchos Pequenos, Rincon Creek) (T15S R16E Sec. 17)
• 12441 E. Camino del Garanon (205-81-0280) (Ranchos Pequenos, Rincon Creek) (T15S R16E Sec. 17)
• 12620 E. Old Spanish Trail (205-81-032F) (Ranchos Pequenos, Rincon Creek) (T15S R16E Sec. 17)
• A levee on 205-64-010D SE of Ranchos Pequenos that became a sediment dam on a tributary to Rincon Creek has been breached, supplying sediment downstream that is causing problems on Old Spanish Trail. There is a diversion of flow into this watershed upstream at a stock tank. The tributary has been cleaned out, and DOT is supposed to maintain it. (T15S R16E Sec. 16)

8.11.3 Infrastructure
• A major breach of the mine west of Old Spanish Trail (205-67-006C) could capture flows from Rincon Creek and cause severe damage to the road. (T15S R16E Sec. 08)

8.11.4 Safety Concerns
• Hazardous conditions exist where Rincon Creek crosses Old Spanish Trail. (T15S R16E Sec. 08)
• Hazardous conditions exist where Rincon Creek crosses Camino Loma Alta. The channel has aggraded above the level of the culverts, causing water to flow over the road. DOT maintains the right-of-way, but sediment keeps causing problems. The area north of Rincon Creek on Camino Loma Alta is inaccessible during flow events. (T15S R16E Sec. 14)
• Dike/levee protecting structures along eastern edge of Thunderhead Ranch subdivision may fail. (T15S R16E Sec. 08)
• DOT is called whenever Rincon Creek flows reach 1000 cfs. (T15S R17E Sec. 17)

 

Recommendation of Actions and Floodplain Management Strategy

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