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Effects of in-stream concrete structures on the pH level of water.
The pH values above and below concrete structures in streams on nine active construction projects throughout the state were determined. It was concluded that for streams with flow rates of 0.3 to 111.25 cfs (0.01 to 3.2 cubic meter/see) the variations in the pH levels of the water above and below the concrete structures were within; the acceptable EPA limit of 0.5 pH unit. It was concluded that cured concrete structures in live streams do not significantly affect the pH level of the water.
Bridge demolition has long been known to mobilize large amounts of stream sediment in the immediate area of the structure. An ecological assessment in...
Recurring failure of three applications of mulch sod on roadsides of Interstate 20 near Tyler, Texas led to a closer examination of soil material on t...
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