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Ina Rd construction project inadvertently kills fish - KVOA | KVOA.com | Tucson, Arizona

Ina Rd construction project inadvertently kills fish

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TUCSON - The Ina Road construction project is nearly half way done. Some of the work involved changing the flow of effluent waste water in to the Santa Cruz River, which inadvertently killed multiple fish.

The flow diversion was deemed necessary for the construction project, which includes building a bridge over the Santa Cruz at Ina Road, west of Interstate 10. 

The water flow was moved from the west bank to the east bank. Some fish were caught in shallow pools as the water lowered. The sight of fish struggling reportedly upset some visitors to the river and users of The Loop.

Pima County biologists estimate the number of fish who died were a small percentage of the fish in the river. An annual survey conducted by the county and the Sonoran Institute was done approximately two months ago. The study showed that the number and types of fish have grown in recent years. The improvement of the river’s ability to support life was owed to better water quality after Pima County made adjustments to two wastewater plants along the Santa Cruz.

The Ina Road project began in January 2017 and is projected to be completed at the end of 2018.

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