We report measurements of gelling rigid rod networks composed of a semidilute dispersion of surfactant-stabilized carbon nanotubes. Microrheology is employed to follow the rheological evolution of the suspension from a semidilute Solution of unbonded tubes to a bonded gel network with finite yield stress. The rheological data at various time intervals during gelation is readily collapsed onto a single lime-cure superposition master curve. A theoretical model based on the crossing probability of rods confined to finite volumes is developed to account for network elasticity. Model predictions compare well with computer simulation and experiments as a function of nanotube volume fraction(1) and cure time.