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

PROJECT NUMBER: CO FLAP LAR 10(1)

PROJECT NAME: Horsetooth and Carter Lake

PROJECT DESCRIPTION: The project will rehabilitate and reconstruct various parking lots and access routes at the Horsetooth and Carter Lake Reservoirs in Larimer County, Colorado. The reservoirs are federally owned by the United States Bureau of Reclamation (BOR) with areas that access to the facilities managed by Larimer County. The project will improve vehicular and pedestrian access to the reservoirs while simultaneously improving safety at these locations which serve over one million visitors annually.

SCOPE OF THE WORK: The scope includes rehabilitation, reconstruction, minor widening, and new construction of parking lots and access roads. Carter Lake Reservoir improvements include rehabilitation at the North Pines and Eagle Campground Parking Lots, reconstruction of the Big Thomson Parking Lot, new construction at the Quarry Overflow Parking Lot, and widening of County Road 31 for an auxiliary travel lane between the Big Thomson and Quarry Overflow Parking Lots. The Horsetooth Reservoir improvements include rehabilitation of the Inlet Bay and South Bay Parking Lots and widening of County Road 38E to accommodate an additional turn lane into the South Bay Parking Lots. The work at the sites specifically includes roadway excavation, obliteration, full depth reclamation, aggregate base and asphalt concrete pavement placement, concrete flatwork and curb and gutter, and signing and striping. Drainage improvements such as culvert installation, channel stabilization, and water quality features are also included. Due to the high recreational use of the facilities, vehicular, cyclist, and pedestrian access must be maintained during construction.

PRINCIPAL WORK ITEMS:

26,000 cubic yards of roadway excavation

23,000 cubic yards of waste

120 cubic yards of rip rap

26,000 tons of aggregate base

23,000 square yards of full depth reclamation

20,000 tons asphalt concrete pavement

1300 square yards minor concrete pavement

1,100 linear feet of pipe culverts (24” to 42”) with end sections

7 each manholes

4,000 linear feet curb concrete

600 square yards sidewalk concrete

23,000 square yards placing topsoil and seeding (hydraulic method)

75 each sign system

28 miles pavement markings

1 lump sum temporary traffic control

ANTICIPATED SCHEDULE:

Advertisement – October 2024

Award – December 2024

Construction – April 2025 through November 2026

ESTIMATED COST RANGE: Between $10,000,000 and $20,000,000

FUNDING SOURCE: Federal Lands Access Program (FLAP) with Partner match

MISCELLANEOUS: The project is in a mountainous and high recreation use area where access to the reservoir amenities must be maintained during construction. Limitations for closures will require strategic phasing and traffic control management.

The work is occurring in a cultural and natural resource sensitive area. Environmental and weather constraints may affect the construction schedule operations.

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