Restore ~1.5 acres of the Donner Lagoon Day Use Area at Donner Memorial State Park to protect hydrologic function, stabilize a portion of the streambank, restore scarce riparian/wetland habitat, provide resource protection, and improve visitor facilities and access. Work will:
• Use heavy equipment to excavate up to 6in. deep to install vegetated toewalls and/or gabions to stabilize undercut trees along the streambank;
• Manually install up to four (4) 50ft x 3ft cable ladders at various locations;
• Install up to 1,050ft. of strand cable fencing (pound posts to install, no excavation);
• Excavate up to 20, 10in. dia. by 12in. deep holes to install up to 100ft. of split rail fence;
• Excavate 16, 12in. dia. by 24in. deep holes to install up to four (4) new ramada shade structures to encourage picnicking activities above the floodplain and out of the sensitive streambank areas;
• To install an approximately 50ft. x 20ft. area of articulated concrete mats/turf stone:
o Excavate up to 6in. (where needed) to reduce slope angle (store/reuse excavated material for regrade);
o Import up to 4in. of base rock and sand to set mats/stones; and
o Frame the mats/stones with 12-18in. of rock or concrete and fill the interior
with native plants and/or grasses.
• For revegetation of the area (excavation widths and depths will be determined by plant size) work will:
o Plant approx. 20 large diameter (4-8ft.) native trees to provide long-term
o Plant approx. 100 native grasses and plants, in clusters between the new
shade structures; and
o Manually seed and plant approx. 200 plants (nursery stock or local
transplants) on the streambanks.
• Remove 10 to 15 wooden picnic tables and replace, kind for kind, with concrete picnic tables; and
• Restripe the existing paved parking area to convert 1 or 2 existing standard parking spots to 15-minute kayak/SUP loading zone spots.