Corner-lot sight triangles required countywide per PennDOT 67 Pa. Code §441 for driveways meeting state roads; municipalities apply similar to all corner lots. Typical: 25-30 ft triangle limited to 3 ft height for fences, shrubs, signs.
PennDOT regulates driveway sight distance on state routes via 67 Pa. Code Ch. 441, but municipal zoning extends sight-triangle rules to all corner lots. Pittsburgh Zoning §925.06.D limits fences/vegetation in a 25 ft triangle from intersection to 30 inches. Mt. Lebanon 30 ft. Repeat offenders on state routes may trigger PennDOT enforcement and PA Vehicle Code §3714 obstruction citations.
Municipal order to trim/remove + $100-$300 fine. PennDOT may cite on state routes.
See how Allegheny County's fence requirements rules stack up against other locations.
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