Shoring for a sewer tie in

Always wondered how I get from the classroom or the catalog to work on an existing pipe while using trench shoring. Now I get to know: have to go 7' down at the street shoulder to install a sewer lateral. The existing pipe (as observed in the manhole at the next intersection) is 8" clay. Locator says it is 6 to 8 feet down; manhole tape measuring and logical eyeballing indicates just shy of 7'. Soil is a sandy loam but low on the clay; yes, a hand dug hole will stand 5' deep.
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Shoring for a sewer tie in

Shoring for a sewer tie in