Exempts the following from requirements to obtain a substantial development permit, conditional use permit, variance, letter of exemption, or other review conducted by a local government to implement the shoreline management act: (1) Normal maintenance or repair of existing structures or developments by the department of transportation, including maintenance or repair of damage caused by accident, fire, or the elements; and

(2) Construction or installation of safety structures and equipment by the department of transportation, including pavement marking, freeway surveillance and control systems, railroad protective devices, grooving, glare screen, safety barriers, energy attenuators, and hazardous or dangerous tree removal.