CA FLAP ED CR 147(2) Ice House Road   4

THIS IS NOT A REQUEST FOR BID - PLANS AND SPECIFICATIONS ARE NOT AVAILABLE.

PROJECT DETAILS: CA FLAP ED CR 147(2) Ice House Road

PROJECT DESCRIPTION: Ice House Road, also designated as County Road 147, is located in El Dorado County, California, and provides recreational access to the world-renowned off-highway vehicle Rubicon Trail, the Crystal Basin Recreation Area within the ENF, the Desolation Wilderness area, Loon Lake, Union Valley Reservoir, and Ice House Reservoir. The route is heavily used by vehicles with trailers hauling boats, horses, off-road vehicles and other recreational vehicles. Within the project limits, the road provides direct access to numerous recreational trails and campgrounds, including the Loon Lake area, and Ice House Resort.

SCOPE OF THE WORK: The proposed action is generally described as a 3R rehabilitation project. The improvements consist of a full-depth reclamation which will pulverize and replace the existing two-lane paved roadway with new 11-foot lanes and 1-foot shoulders along Ice House Road from Peavine Ridge Road to Wentworth Springs. This is consistent with the existing roadway which averages a 24-foot width. Minor drainage improvements will also be completed, including paved ditch and asphalt curb replacements or extensions, culvert cleaning, repairs/adjustments and replacements, the addition of underdrain, ditch reconditioning and regrading, and select areas of riprap lining along ditches. Scaling and cleaning of roadside ditch/catchment areas will occur at several cut slope locations. Schedule A includes 14.95 miles of the described work, Option X includes 2.67 miles of the described work, and Option Y includes replacement of bridge barrier rail on 5 bridges on Ice House Road.

PRINCIPAL WORK ITEMS:

• 20402-0000 Subexcavation: 5,600 CUYD
• 20441-0000 Waste: 12,280 CUYD
• 30202-2000 Roadway Aggregate, Method 2: 2,660 TON
• 30401-5500 Full Depth Reclamation, Method 2, 8-Inch Depth: 17.6 MILE
• 40101-5600 Asphalt Concrete Pavement, Gyratory Mix, 1/2-Inch or 3/4-Inch Nominal Maximum Size Aggregate, 0.3 to <3 Million ESAL: 43,200 TON
• 60901-2300 Curb, Asphalt, 6-Inch Depth: 9,400 LNFT
• 60908-1000 Paved Ditch, Asphalt (Overlay): 11,680 SQYD
• 63506-0500 Temporary Traffic Control, Flagger: 11,500 HOUR

ANTICIPATED SCHEDULE:

• Advertisement: September 2023
• Contract Award: November 2023
• Notice to Proceed: December 2023
• Construction Complete: October 2024

ESTIMATED COST RANGE:

• The proposed project is estimated at a total construction cost between $20,000,000 to $30,000,000

MISCELLANEOUS:

• There is narrow bench width throughout the route and limited staging areas are included in the plans. The work includes removal of 2 of pulverized material, on average, to remain on existing bench.
• Cobbles exist beneath the pavement throughout the route.
• There are several locations of steep rock cuts that require slope scaling in areas with narrow bench widths.
• There is high recreation use with parking adjacent to the roadway in certain locations. Traffic control plans will need to consider methods to prevent parking within active work zones.
• There are environmentally sensitive resources adjacent to the road in several locations.
• Work along this route will take place within environmentally sensitive areas and will require interactions with the Forest Service, the County, and the travelling public. Full road closures will not be permitted. Delays due to construction will be limited to a maximum of 30 minutes.