Constant screeps::constants::structure::ROAD_DECAY_AMOUNT

pub const ROAD_DECAY_AMOUNT: u32 = 100;

Hits lost upon decay for roads, before swamp/tunnel multipliers

Cost, hits, and decay rate are multiplied in the cases of building on swamps or tunneling (see CONSTRUCTION_COST_ROAD_SWAMP_RATIO and CONSTRUCTION_COST_ROAD_WALL_RATIO terrain multipliers).