The phrase "a total depth of" is correct and usable in written English.
It can be used when specifying the complete measurement of depth in various contexts, such as construction, geology, or diving.
Example: "The excavation revealed a total depth of 15 meters, which was deeper than initially anticipated."
Alternatives: "an overall depth of" or "a complete depth of".
The well will be drilled in 6,750 feet of water to a total depth of about 29,000 feet.
The Deepwater Horizon well was being drilled in five thousand feet of water, to a total depth of eighteen thousand feet.
(By contrast, the Santa Barbara well was drilled in less than two hundred feet of water, to a total depth of thirty-five hundred feet).
Three boreholes, one injection well and two observation wells have been drilled to a total depth of about 800 m.
Nest cavities generally measure 10 cm at the entrance, with the nest 20 cm back, and a total depth of 30 cm (Bowes and Allen 1969).
The tool shaved the rock over a period of two hours, grinding into a total depth of about 4 millimeters (.16 inches).
Secondly, the results predict the most likely forthcoming evolution of the present flooding of the Meirama open pit to reach therein a total depth level of almost 200 m, as regards the projected evolution of the water resources, climatology and usages.
Drilling commenced on 27 September 2010 and continued through 27 January 2011, when a total depth (TD) of 1912.5 m had been reached (Delahunty et al. 2012).
The whole SNP report was initially filtered to retain the HRM confirmed SNPs using a minimum total depth of 10 reads at the polymorphic base and at least 20% variance from the consensus.
The Tilapia well will be drilled to an intended total depth of 2,700 meters with completion expected in 64 days.
The thickness of the layers was calculated on the basis of the extent of the neurons labelled by each riboprobe, and was expressed as a percentage of the total depth of the cortical ribbon.
