For the last decade MDOT faced a challenge with its Metro Detroit freeway lighting system. Approximately one third of freeway lights were not functional, structural conditions were declining and the capital improvement budget was insufficient to change this downward trend. Operationally, copper wire theft and aging infrastructure presented additional pressures on MDOT crews leaving large sections of freeway and tunnels dark and resulting in visibility, safety and security concerns. To fix this, MDOT entered into a 15-year, $142 million public private partnership to accelerate capital investment as well as convert the system to modern low energy LED technology. The project saves taxpayers $2 million in energy costs each year while keeping motorists and MDOT workers safer.