Welcome toCentexExcavation

Section 404 Permits for Excavation Work

A practical guide to Clean Water Act Section 404 for earthwork: what counts as regulated water, when a stream, wetland, or ditch triggers a Corps permit, how nationwide permits work, and how to keep a dig legal.

Excavator Hydraulic System Problems

How to diagnose the most common excavator hydraulic problems - slow cycles, weak digging, drift, overheating, aeration and leaks - before they cost you a pump.

How to Choose an Excavation Contractor

A practical checklist for choosing an excavation contractor: what to verify, how to compare bids, which contract clauses matter, and how to structure payments.

Differing Site Conditions and Change Orders

How excavation contractors document and price differing site conditions - rock, buried debris, groundwater - so a surprise in the field becomes a paid change order.

Sheet Piling for Deep Excavations

A practical guide to sheet pile walls: how steel sheets support deep cuts, cut off groundwater, and what OSHA requires before the first pile is driven.

Jobsite Fuel Storage and Refueling

A practical guide to jobsite diesel storage: SPCC thresholds, secondary containment sizing, tank choice and siting, OSHA refueling rules, spill response, and fuel quality.