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Matheson Wetland Pond Enhancement
Region: Southeastern
ID: 5469
Project Status: Completed
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Project Start Date
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Project End Date
Fiscal Year Completed
2021
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Final Methods
The project was designed and engineered by a professional engineering firm. This allowed us to make sure that when the contractor was on site we could get to correct depth and grade to allow water to flow in and out of the pond correctly, allowing for razorback larvae entrainment when river flows are sufficient. The pond was dredged with excavators and dump trucks. Pond materials were hauled to an upland site on the preserve. The pipeline was then installed from the pond moving towards the water control structure. 12 inch HDPE pipe was installed most of the length of the pipeline. Pipe was buried mostly at a depth of 3 feet but at places it is shallower. A concrete water control structure was installed to allow water to run through the pipe to the pond or to move through the wetland naturally.
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Project Narrative
A pre-work meeting on Sept. 9, 2020 kicked off project related work. The contractor began dredging the pond area on 9/14/2020. Approximately 20,500 cubic yards of sediment was dredged from our central pond creating a maximum depth of 5 ft. over 2 acres. The pond dredging was completed on 12/7/2020. The pipeline to convey the supplemental water was then installed and completed on March 1, 2021.
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Future Management
The DWR fisheries team in the Moab field office will manage the pond including the water control gates at the Colorado River and water in the pipeline coming from Watercress spring water rights. Annual light trapping for razorback sucker larvae will be done to determine presence at the site to move fish into the pond. Water quality and quantity will be evaluated over the summer months to determine in action is needed for survivability of fish entrained in the pond. Fish will be released into the Colorado River system in the fall of the year. The pond will be dried up to remove an non-native fish. The pond will then be filled for waterfowl in fall and spring.
Submitted By
Nicole Nielson
Submitted Time
08/20/2021 13:25:27
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