Synopsis_Attch_DRAFT_Scope.docx

103.2 Scope of Work

The contractor shall provide all labor, supervision, materials, plant, and sampling/testing to perform all work in accordance the plans, specifications and other contract requirements. The major items include, but are not limited to:

1. Performing preliminary construction staking and delineating the clearing limits.

1. Identifying trees the government has identified to be removed and salvaged for log jam construction and identifying with the Contracting Officer trees to remain and be protected during clearing and grubbing operations.

1. Placement of temporary traffic control signage.

1. Clearing and grubbing and conservation of topsoil. Backfill depressions or holes left by rootwad trees taken from locations outside site grading limits.

1. Harvest, haul and stock pile trees to be used for log jam construction which are located within the boundary of the North Fork Recreation Area.

1. Establishing erosion control measures.

1. Excavation and embankment work for a pull off along the main access road (FS Road 805), new boat ramp loop road, parking areas and new boat ramp location. The existing boat launch and play area shall remain open during construction of these items.

1. Scarifying and compaction of the raw subgrade.

1. Placement and compaction of fill material, rough grading and approval of the subgrade.

1. Construction of the rock lined ditch, placement of culverts, culvert flared ends, and construction of other drainage features.

1. Placement and compaction of aggregate base material (MoDOT Class 5) finish grading, and approval of the base course.

1. Placement of MoDOT Grade 4, gradation A, drainage aggregate base under the articulating concrete mats and concrete planks at the new boat ramp location.

1. Construction of a new boat ramp and all concrete work associated with the new boat ramp, placement of articulating concrete mats, ballast blocks and associated riprap and other construction features.

1. Rock placement including riprap, slab rock, channel rock, rockery for retaining wall, and anchor rock.

1. All other work required to open the new boat ramp to the public for temporary use. Maintain the road, parking area, and boat ramp until final acceptance.

1. Demolition, clearing, grubbing of the existing boat ramp and surrounding area as shown on the demolition plans.

1. Excavation, placement of compacted fill, aggregate base, and riprap in the area of the existing boat ramp, existing parking lot and play area.

1. Perform all finish grading to ensure site drainage is functioning as intended (all areas). Perform all finish grading and seek approval of base prior to commencing with paving operations.

1. Construct concrete sidewalks (accessible route to play area and 17 feet sidewalk extension from the existing CXT toilet to the new loop entrance road.

1. Place and compact hot mix asphalt concrete (MoDOT BP-1).

1. Place signs, bollards, gates, and all other construction features that remain.

1. Complete striping of the roadways and parking areas.

1. Place topsoil, seed and mulch. Water and maintain turf until vegetative cover is established and accepted.

1. Harvest from a location approximately 20 miles from the project site 17 root wad trees required for logjam construction. Haul and stock pile at the designated area on site. Backfill depressions or holes left by rootwad trees removed.

1. Construct logjams at designated sites along the North Fork of the White River.

103.3 Phasing and Sequencing of the work

At all times except for during paving operations or with prior approval from the Contracting Officer, the public shall have access to either the existing boat ramp or new boat ramp to launch rafts, boats, and wade in the water. In general, the new boat ramp, parking area and loop road shall be constructed prior to decommissioning/closing of the existing boat ramp. The new boat ramp will be open to the public once the base course is laid and accepted. The contractor shall maintain the road, parking area, and boat ramp until pavement is placed and final acceptance. Log structures or the articulating concrete mats shall not be placed after rain events until flow rates have stabilized and returned to their pre-rain elevations.