Revegetation

View revegetation project summaries

Revegetation is an integral part of our scope of services. The company has 20 years experience providing this service in California, with a number of employees bringing additional experience from outside the company and from other areas of the country. We are privileged in California to have such a diverse range of habitat types to in which to work. Projects have ranged from coastal scrub and tidal marsh to alpine meadows. In between, we commonly perform riparian and freshwater wetland planting both as part of larger scale restoration projects, and as stand alone projects.

Our company has the capacity to both install and maintain small and large scale revegetation projects in urban and remote areas, with or without a water connection. Our services include the following:

• Soil preparation, fine grading, amending, cultivating
• Irrigation system schematic design and installation, drip, bubbler, overhead, etc.
• Plant procurement, plant installation (plugs to 60” box)
• Plant protection, weed mats, deer fencing, beaver cages, rodent protection
• Establishment and maintenance

Revegetation site experience:

• Upland, oak savannah, woodland, grassland (see Native Grass Seeding)
• Conifer forest
• Riparian habitat
• Ephemeral, seasonal, perennial freshwater wetland
• Tidal marsh
• Rare and endangered species, including serpentine conditions
• Large scale sites (100+ acres)
• Linear sites (40+ mile)
• Remote sites (tank and pump and Driwater equivalent irrigation)

Presidio Parkway (Doyle Drive Replacement) Native Plant Salvage and Erosion Control
San Francisco, Ca

The Doyle Drive replacement project is designed to improve the seismic, structural and traffic safety of this roadway. Construction began in December 2009 and is expected to be completed in 2011.  Hanford ARC contracted with Caltrans in July 2009 to begin preparation and provide ongoing support for several aspects of this project. More....

Sherman Island Habitat Levee Setback Project
Antioch, Ca

This project involved involved construction of a setback levee, clearing of invasive vegetation, erosion control, and installation of approximately 2000 native plants. Mason’s lilaeopsis, a listed species in California, was present in several locations throughout the project site. More...

Peyton Slough Restoration
Martinez, CA

Hanford ARC was contracted by Rhodia Chemical Company through Dutra Construction to implement mitigation measures and rare species habitat restoration for the Masons lilaeopsis and erosion control for the Peyton Slough restoration project, designed by URS. The unstable nature of the work area made access and mobilization of large equipment challenging. More...

Twitchell Island Revegetation
Sacramento County, CA

Hanford ARC constructed this levee setback revegetation project in February and March of 2000. Prior to the project, 2,400 linear feet of new levee on the San Joaquin River had been constructed with a 100-foot setback from the old levee, which remains in place as a breakwater and revegetation planting zone. The project included the installation of 20,000 herbaceous plants, several thousand woody plants, and a temporary irrigation system. More...

Napa River Rare Plant Salvage
Napa County, CA

Hanford ARC acted as the prime contractor on this project which involved salvage and restoration of the State listed rare plant, Mason’s lilaeopsis (Lilaeopsis masonii). The plant grows along the mid to low tidal zone of the lower Napa River. Several populations were located in areas to be graded as part of the Napa River Flood Protection Project. A total of four sites were replanted, with two log structures and two sites which were graded only. More...

Napa River Revegetation
Napa County, CA

Hanford ARC has completed five contracts as part of the Corps of Engineers' Napa River Flood Control Project. The work has included drill seeding 56 acres with native grasses, planting approximately 11,000 wetland plants, breaching two levees to flood the historic wetland areas, and provided maintenance and monitoring services for three years. More...

Devils Slide Drilling, Stabilization and Restoration
Pacifica, CA

This project involved test boring as part of the Devils Slide bypass tunnel project. 29 remote drilling points were established in the headlands over the tunnel location. Hanford ARC provided clearing, demolition and grading services for access to, and establishment of these pads, then restored each site's natural contours and stabilized all access roads and drill pads with various erosion control techniques, including fabric, fiber rolls, silt fence, water bars, and retaining walls. More...

Alamo Creek Revegetation
San Ramon, CA

This project is part of a comprehensive habitat enhancement project and mitigation for new housing construction on the eastern edge of the City of San Ramon. The revegetation area spans approximately 40 acres and 3,600 linear feet along both the west branch and main stem of Alamo Creek. Hanford ARC installed approximately 18,000 native riparian and upland species. More...


Corps Park/Stanislaus River Bicycle Bridge Mitigation
Ripon, CA

This project was constructed as required mitigation for a bicycle path and bridge over the Stanislaus River. Both items required clearing of riparian vegetation, including elderberry shrubs (habitat for the Federally listed valley elderberry longhorn beetle), for which mitigation was required. More...