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3900 Series Buses

GDT > RTD Info > Fleet > Retired Buses > 3900 Series Buses

Gillig 30ft Low Floor Transit Bus

Introduced in 2006, RTD’s 76 30ft Low Floor buses were used on lower demand routes throughout the Denver Metro region. Regular routes were 46, 402L, 228A and 323 – 327 in Longmont. These buses were replaced by new 3000 Series vehicles and all were retired by October 2023.

30ft Low Floor Facts

  • Number of Vehicles: 76
  • Fleet Numbers: 3901 – 3976
  • Length: 29 ft (8.8 m)
  • Width: 8 ft 6 in (2.59 m)
  • Height: 9 ft 7 in (2.92 m)
  • Weight: 20,000 lb (9,700 kg)
  • Engine: Cummins ISL Diesel

Interior and Seating

RTD’s 3900 Series low floor buses have 26 seats. Six seats can be tipped up to create one dedicated spot for wheelchair / mobility devices. An ‘extra space’ area is also provided.