Corner lots in McKeesport must maintain a clear sight triangle at intersections. Fences, hedges, and obstructions over 30 inches prohibited within the triangle to ensure traffic safety.
McKeesport zoning, consistent with the PennDOT Publication 282 (Policies and Procedures for Traffic Engineering), requires a clear sight triangle at the corner of any intersection and at driveways meeting public streets. Within the sight triangle — measured typically as 25 feet along each street curb line from the intersection — no fence, wall, hedge, tree canopy below 8 feet, sign, or other visual obstruction greater than 30 inches in height (measured from the crown of the adjacent roadway) may be maintained. This rule applies even if the fence otherwise meets height and setback rules. Tree trunks are generally allowed if pruned above 8 feet. Violations are enforced by Public Works and Code Enforcement; Public Works may trim overhanging vegetation itself and lien the property. Liability for accidents caused by obstructions may extend to the property owner.
Obstruction in sight triangle: zoning citation $100-$500 plus mandatory trimming or removal. Failure to comply: Public Works may trim and assess costs as a lien on the property.
See how other cities in Allegheny County handle fence requirements.
See how McKeesport's fence requirements rules stack up against other locations.
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