🏗️ FHWA High-Capacity Micropiles (7"-10" Casing, 150-400 Kips SWL), Rock Socket Bond

High-Capacity Micropile Calculator

Size high-capacity drilled and grouted micropiles (pin piles) for seismic retrofits and low-headroom building underpinning under FHWA-NHI-05-039: calculate high-strength threaded steel casing capacity (7" to 10" casing, 150 to 400 kips design working load), pressure-grouted rock socket bond length, and specialty drilling profits.

1. Project & Operating Inputs

Total Micropiles Drilled & Grouted (Pile Count e.g. 36 Micropiles)

Design Working Load per Pile (Kips e.g. 250 Kips / 125 Tons SWL)

Customer Invoiced Bid Price per Micropile ($ / Pile e.g. $8,500)

N80 Steel Casing, All-Thread Rebar, Neat Cement Grout & Drill Rig ($ / Pile)

2. Financial Breakdown & Yield

FHWA HIGH-CAPACITY MICROPILES

Turnkey Micropile Package Profit

Deep Foundation Drilling Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost