ZION NATIONAL PARK, Utah (AP) — The National Park Service has started part-time closures on popular Zion National Park trails as they work to improve the paths.

The Hidden Canyon Trail and portions of the East Rim and Observation Point trails will be closed from Monday through Thursday starting this week and running through the end of the summer. Concrete pours are planned for Mondays or Tuesdays, and the additional closure days allow the concrete to dry before the weekend.

The park service is starting a multi-year project to rehabilitate trails out of the Weeping Rock shuttle area.

Crews are also planning to repair retaining walls on the Hidden Canyon Trail later this summer, and work on the Canyon Overlook Trail in September and October.

The projects are funded by park entrance and use fees.

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