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Hikers, joggers, people watchers, dog walkers — take note: One of L.A.’s most-loved spots for all of the above is closing on Friday.

Runyon Canyon Park, especially popular because dogs are allowed to roam off leash, will be off limits to all until August while the Los Angeles Department of Water and Power replaces about a mile of aging, 6-inch pipe that snakes below the surface of its trails.

The DWP says the pipe replacement will improve the area’s fire protection and water quality and reduce the risk of future pipe breaks.

But while many Runyon Canyon regulars said Thursday they understand the need for repairs, they bemoaned the length of the closure — and the fact that all the trails will be closed, even those where there will be no construction.