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Slater, Inc.
Long steel-shored trench with pipe cross-struts beside a new residential tract, with a yellow excavator at the far end

San Jacinto

Box Culvert, San Jacinto

A deep, steel-shored excavation for a cast-in-place box culvert beside a live road in a new San Jacinto residential tract, carried through to the poured base slab.

Sample content Case study narrative (P-08)

Written from Slater's published photos. Owner, scope and outcome await confirmation from Slater.

The challenge

A Riverside County flood control project called for a cast-in-place box culvert through a growing residential tract. The alignment ran right beside an open road and occupied homes, so the excavation had to go deep and stay narrow, with the public a few feet away on the other side of the K-rail.

Our approach

Slater dug and shored the trench with its own excavators, setting steel trench plates and pipe cross-struts as the cut advanced so crews could work safely at depth. Grade was held with a laser level in the trench, the subgrade was compacted, and the reinforced base slab was placed as the first of the culvert’s phased pours, with starter bars left for the walls.

The outcome

The photos we have follow the job through excavation, shoring and the poured base slab. They show what Slater does every day: deep, shored storm drain work beside live traffic, done by our own crews with our own equipment, as we have for 45 years.

TODO(slater): photos of the finished walls and top slab, and confirmation that the structure is a box culvert.

9 photos

Building something similar?

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