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In this study, we have measured the muon flux and production rate of muon-induced neutrons at a depth of 611 m water equivalent. Our apparatus comprises three layers of crossed plastic scintillator hodoscopes for tracking the incident cosmic-ray muons and 760 L of a gadolinium-doped liquid scintillator for producing and detecting neutrons. The vertical muon intensity was measured to be I_μ = (5.7±0.6)×10^–6 cm^–2 s^–1 sr^–1. The yield of muon-induced neutrons in the liquid scintillator was determined to be Y_n = (1.19 ± 0.08(stat) ± 0.21(syst)) × 10^–4 neutrons/(μ•g•cm^–2). A fit to the recently measured neutron yields at different depthsmore » gave a mean muon energy dependence of < E_μ >^0.76±0.03 for liquid-scintillator targets.« less