Risk and Safety FAQs

A tree risk assessment is a structured evaluation of tree defects, site conditions, and targets to determine practical risk mitigation options.

• We inspect the crown, trunk, unions, and root zone for defects and contributing factors
• We consider site exposure, soil conditions, and how often targets are present
• We provide mitigation options such as pruning, support systems, monitoring, or removal when warranted
• The goal is practical risk reduction, not fear-based decisions

Tree risk is the combination of failure potential, the chance of impact, and the severity of consequences.

• A defect alone does not define risk, targets and occupancy matter
• A tree over a play area is different from the same tree over an unused corner of a yard
• Risk changes over time with growth, weather, soil moisture, and site changes

Certain changes justify a prompt on-site evaluation, especially when targets exist.

• Fresh cracks in trunk or major limbs
• A new or increasing lean, especially with soil movement
• Soil lifting, sinking, or newly exposed roots on one side
• Large dead limbs over driveways, sidewalks, roofs, or play areas
• Mushrooms or conks at the base, particularly on large mature trees
• Recent construction or trenching within the root zone followed by decline

Yes. Some failures occur from hidden defects, root problems, or sudden weather loads.

• Internal decay can exist with minimal external symptoms
• Root damage and poor soil conditions are often not obvious from the canopy alone
• Some species have known failure patterns, especially with poor structure or past topping
• A professional assessment focuses on structure and site context, not just leaf color

A target is anything that can be damaged or injured if the tree or a part of it fails.

• Common targets include homes, cars, sidewalks, patios, play areas, and utility services
• Target occupancy matters, how often people are present changes the risk profile
• Good mitigation planning prioritizes risk reduction where targets are highest

Cracks can indicate stress, separation, or an active failure process, and they should be evaluated promptly.

• Fresh cracks, widening cracks, or cracks with movement are higher concern
• Cracks near major unions, especially with included bark, can be significant
• If there is audible creaking, visible separation, or hanging limbs, restrict access and schedule urgently

A lean can be normal, or it can indicate root failure potential, depending on whether it is recent and whether the root plate is moving.

• A long-standing lean with stable soil and good root anchorage may be manageable
• A new lean after rain or wind, especially with soil disruption, is a higher concern
• Lean direction relative to targets affects mitigation priority

Soil lifting, cracking, or heaving near the base can indicate loss of root stability.

• Root plate movement can precede whole-tree failure
• Saturated soil can reduce root holding strength, even in otherwise vigorous trees
• If you see fresh soil mounding, cracks in turf, or exposed roots, restrict access and schedule promptly

Fruiting bodies can be a sign of decay in roots or the lower stem, but the significance depends on type and location.

• Some fungi colonize dead material, others are associated with structural decay
• Conks at the base can be consistent with advanced decay and should be evaluated
• Vigor treatments do not reverse decay, mitigation focuses on risk reduction and realistic retention options

Included bark occurs when two stems grow together with bark trapped between them, creating a weak attachment.

• Included bark unions are more likely to split under load
• The risk increases with stem size, length, and lever arm forces
• Mitigation may include reduction pruning, support systems, or removal depending on severity and targets

Deadwood increases hazard potential, but it does not automatically mean the whole tree is failing.

• Dead branches over targets are a priority for mitigation
• A tree can have deadwood and still be structurally sound overall
• Widespread deadwood combined with thinning canopy may indicate systemic decline

Pruning can reduce certain hazards by removing defects and reducing loads, but it does not eliminate risk.

• Removal of deadwood and weight reduction on overextended limbs can reduce failure likelihood
• Poor pruning can increase risk by creating weak regrowth or large wounds
• Risk reduction pruning should be objective-driven and aligned with ANSI A300 expectations

Support systems can reduce the likelihood of certain failures, but they do not guarantee safety.

• Cabling and bracing are most effective when paired with proper pruning and monitoring
• They are not appropriate for all defects, and they cannot compensate for severe decay or root instability
• Support systems require inspection and maintenance over time

After a storm, focus on safety first, then documentation, then mitigation.

• Stay clear of hanging limbs and unstable trees
• Do not approach trees touching power lines, contact the utility immediately
• Photograph damage for records and insurance documentation if needed
• Schedule an assessment to identify remaining hazards, especially partially failed limbs and split unions
• Prioritize mitigation over cosmetic cleanup when safety is involved

Proximity alone is not a reason to remove a tree, but it can increase consequences if defects exist.

• Many trees near structures can be managed with appropriate pruning and monitoring
• The key question is whether defects and site conditions create an elevated risk profile
• If risk is elevated, options may include pruning, support systems, staged mitigation, or removal depending on feasibility