Aquatic Organism Passage Improvements at Bob Thomas Creek and Stone Creek

Project Description

The project included drainage improvements at two crossing sites within the Apache Sitgreaves National Forest in Arizona.

The project included repairs at two drainage crossings, Bob Thomas and Stone Creek. The two crossings are located within 350 feet of one another. The project site lies within an area damaged by recent wildfires and as such, these watersheds have been moving an increased amount of sediment.

The Bob Thomas crossing is currently an at grade low water crossing. The USFS completed downstream repairs (large riprap and cutoff walls) to the crossing in 2016 to prevent erosion in the channel and along the roadway. While the crossing is performing well, the USFS is interested in hydraulic improvements to the crossing.

The Stone Creek crossing consists of two culverts, which periodically plug with debris. The USFS is interested in increasing the efficiency of the crossing while reducing the maintenance requirements. In addition, the USFS would like to consider aquatic organism passage requirements at the Stone Creek crossing.