LANDSCAPE
Even smaller surprises can wreak havoc. An abandoned irrigation pipe that leaks into foundation plantings, an undocumented utility crossing a proposed tree pit or a misidentified soil horizon that won’ t drain after irrigation runs.
The lesson? Don’ t underestimate the dirt. Soil conditions can make or break timelines. Past project assumptions are no guarantee for the next site.
To avoid these issues, many contractors now conduct a quick round of pre-mobilization test pits, even when a geotech report exists, to verify what they’ re actually digging in to.
Early utility locating and potholing in critical planting areas helps prevent mid-project conflicts. Some teams also build soil remediation contingencies into bids, such as unit pricing for debris removal or soil amendment so surprises don’ t stall work while waiting for approvals.
A brief preconstruction walk with the GC and civil engineer to compare plan elevations with real site grades can also catch inconsistencies before equipment arrives. These small steps upfront can save days or weeks once crews are in the ground.
Drainage and compliance challenges
Water is one of the biggest threats to a landscape and to a schedule. Improper grading around foundations remains one of the most common issues inspectors flag. One building consultant noted that a surprising percentage of new commercial properties show signs of water intrusion directly tied to incorrect slope and missing drainage paths.
On multi-acre sites, stormwater mismanagement isn’ t just a risk, it’ s a liability. A landscaping contractor in Colorado faced costly rework when a retention area overflowed during a summer storm, sending muddy water into an adjacent business’ s lot. The issue? The contractor wasn’ t notified that the civil engineer had changed the final grading elevations after landscaping was already installed.
Regulators are watching these projects closely. Construction sites over one acre must maintain proper erosion control, and failure to install silt fence, inlet protection or temporary seeding can result in fines or stop-work orders. This puts landscaping crews directly in the spotlight, especially when they’ re responsible for stabilization.
To reduce regulatory risk, add a short erosion-control checklist to your daily site routine( verify silt fence, check inlet protection, confirm temporary seeding or mulch is in place), require written civil-engineer sign-off for any grade changes before proceeding and document conditions with timestamped photos after major weather events. These steps make compliance easier to prove and catch problems before inspectors or neighbors do.
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