Most projects run 1 to 3 weeks depending on the number of piles and the depth needed to reach competent bedrock.
Cased micropiles are small-diameter, high-capacity deep foundation elements installed with a steel casing that stays in place through unstable or caving soil, allowing the pile to bore cleanly through the problem zone and found in competent bedrock below. The casing means installation doesn't rely on the soil around the hole to stay open on its own, which matters where that soil includes a karst void, loose fill, or debris.
In Austin, cased micropiles solve two distinct problems: karst-affected sites west of I-35 where a borehole might otherwise cross an unmapped void, and tight downtown infill lots where limited access rules out larger drilling equipment. GSI's Austin cased micropile work typically includes:
Most projects run 1 to 3 weeks depending on the number of piles and the depth needed to reach competent bedrock.
Cost depends on pile count, depth, casing length through unstable soil, and access conditions, which our engineers confirm from test borings.
Yes. Every design is stamped by a licensed Professional Engineer and meets IBC and Texas Building Code requirements.
GSI offers 24/7 emergency response and can mobilize a crew within hours if a foundation needs immediate deep support.
A cased micropile can bore through an unstable zone, like a karst void or loose fill, that would otherwise cause a conventional pier's borehole to collapse before concrete placement.
Yes. Compact drilling equipment and the casing system make cased micropiles well suited to limited-access infill sites in downtown Austin.
Cased micropile installation is a comparatively low-vibration method, which is one reason it's often specified near existing structures.
We confirm depth to competent Edwards Limestone or Austin Chalk with test borings before finalizing the pile design, rather than assuming a standard depth.
A karst void or loose fill under an Austin site doesn't have to stop a deep foundation from reaching bedrock. Call (855) 599-5217 to get an Austin cased micropile assessment from a licensed engineer.
