Rim Drive Rehabilitation Revegetation Project 2017 Annual Report
Wyler CS, Chizinski T, Heisler S, Frederic MC, Hooke J. 2018. Rim Drive Rehabilitation Revegetation Project 2017 Annual Report. National Park Service
Crater Lake National Park’s Rim Drive Rehabilitation Revegetation project aims to mitigate impacts to the rim environment from the Federal Highway Administration-sponsored Rim Drive Rehabilitation project. This major construction project is correcting many deficiencies present along the Park’s historic Rim Drive. Through surveying for and controlling invasive plant species, salvaging and reestablishing rare plant populations disturbed by the construction project, and restoring disturbed areas using site-specific native plants and seed it is hoped that long-term impacts from this construction project to the Park’s natural resources will be minimized. During the 2017 field season, over 51,281 invasive plants were removed from the project area. Additional rare plants were salvaged from areas prior to disturbance from construction activities and incorporated into a holdover facility where plants are monitored for health and survival. For the fifth year in a row, plant materials were collected from five distinct seed zones representing the floral diversity of the project area. Fifty-seven seed accessions were provided to the Corvallis Plant Materials Center by Park staff and contract crews for propagation of plants for revegetation and creation of customized seed mixes for each restoration site. Site documentation was refined for each disturbed site to inform future restoration efforts and monitor revegetation status of the project. In 2017, CRLA staff planted 363 native plants and dispersed 406 grams of native seed throughout disturbed areas along East Rim Drive. On West Rim Drive, 924 native plants were outplanted in disturbed areas along with approximately 357 salvaged rare plants; and 1,597 grams of native seed were broadcast in disturbed areas along the road corridor. Scheduled construction work for 2017 was not completed this season, leaving much restoration work to be accomplished during the 2018 field season.
- Type
- Unpublished Report
- Authors
- Wyler, Carolyn; Chizinski, Tara; Heisler, Scott; Frederic, Melody; Hooke, Jen
- Date of Issue
- 2018-04
- Publisher
- National Park Service
- Units
- CRLA
- Keywords
- disturbance, native plant communities, outplanting, restoration, revegetation, road construction, seed collection, site preparation, Vegetation
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Vegetation Complex , Ecological Framework: Human Use | Point-Source Human Effects | Point-Source Human Effects