Concrete: 5,000 psi @ 28 days 5% - 8% entrained air Rebar: ASTM A-615 grade 60 Black Bar Available duct entrances: a) Standard KO window b) Custom configurations and/or locations Design criteria: a) ASTM C858 b) Loading per ASTM C857,
Including: -Earth cover: Min 1' - 0" Max 5' - 0" -AASHTO HS-20 wheel load & applicable impact -Vertical & lateral soil pressures determined using 120 PCF soil density -Ground water at 3' - 0" below grade -Reinforcing cover per ACI 318 Weight: Top section: 1,960# Base section: 2,160# Total manhole: 4,120#