Environmental

Chatfield Storage Reallocation Project

Owner:

Chatfield Reservoir Mitigation Company, Inc.

General Contractor: 

Chatfield Reservoir Mitigation Company, Inc.

Contract Amount: $16 M+

Overlot grading within Chatfield Lake State Park to raise the elevation of the recreational facilities including the swim beach, marina, day use areas and perimeter road to accommodate additional water storage within the reservoir.  Kelley's Scope included approximately 40,000 CY of dredging within the marina area.

Danish Flats Water Ponds, Phase 1 & 2

Owner:

Danish Flats Environmental Services

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $8.8 M+

Construction of new water storage ponds with clay and geosynthetic liners in Utah.

SIA High Line Canal Filing 16

Owner:

City and County of Denver

General Contractor: 

LVI Environmental Service

Contract Amount: $7.5 M+

The project was located on a 70 acre site at the old Stapleton International Airport. The project consisted of erosion control, importing 750,000 CY of dirt to balance the site, excavating a 150,000 CY stockpile, screening the stockpile for asbestos with asbestos inspectors and asbestos laborers and placing and compacting the stockpile in a fill area, seeding, surveying and quality control.

Front Range Landfill, Cell 12 & 13 Liner Excavation

Owner:

Waste Connections

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $4.7 M+

Excavation of approximately 1.2 million cubic yards of site soils for landfill cell construction with cohesive soil and geosynthetic liner construction.

Howe Pit Reclamation

Owner:

LaFarge North America, Inc.

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $4.6 M+

Performed pit reclamation including site preparation, Zone 1 slope liner fill (186,800 CY), stabilization berm construction (44,620 CY), above grade crest berm construction (8,766 CY), erosion repair (22,000 CY), landslide repair (7,700 CY), removal of excess soils (288,720) and finish grading. Performed excavation, earthwork, riprap, and boulder placement including 12’ X 3’ CBC, concrete channel with spillway and GCL liner system for First Creek Channel. Howe Pit was a complex project with many obstacles that were overcome by the project team. Re-design of slope liner during construction, re-design of several aggregate structures from riprap to boulders, re-design of First Creek Channel works due to unforeseen ground water, re-design of outfall channel due to varying elevations within the existing channel.

Stapleton Filing 7 Stockpile Asbestos Remediation Project

Owner:

City and County of Denver

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $3.9 M+

The project was located on a 35 acre site at the old Stapleton International Airport. A stockpile located onsite contained asbestos, and the surface soils surrounding the stockpile were contaminated with asbestos. The general scope of work included excavating a 300,000 CY stockpile, screening the stockpile for asbestos with asbestos inspectors and asbestos laborers (soil characterization), and placing and compacting the stockpile in a fill area, Removing 8,500 CY of Asbestos contaminated soil from the project by loading the soil into trucks, wrapping the soil with plastic in the trucks, and hauling the soil to a landfill, potholing the onsite stockpile to determine the degree of contamination and the size of the asbestos inspection crew needed for the stockpile screening operations, erosion control, seeding, surveying and quality control.

Front Range Landfill Cell 14 Construction

Owner:

Waste Connections

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $3.9 M+

Mass excavation of 925,000 CY of material and installation of low permeability clay liner and leachate collection system of new landfill cell.

Southern Cross North Water Ponds

Owner:

Southern Cross Environmental Services

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $3.1 M+

Construction of new water storage ponds with clay and geosynthetic liners in Baggs, Wyoming.

Westerly Creek North

Owner:

Park Creek Metro District

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $2.2 M+

The park project located at the old Stapleton International Airport consisted of erosion control, demolition including airport runway and buried utilities, clearing and grubbing, overlot grading of 130,000 CY of dirt, importing 15,000 CY of dirt to balance the site, realigning 2,500 feet of Westerly Creek, constructing 5 rip rap drop structures and 1 boulder drop structure, and installing a pedestrian bridge.

Tower Landfill Phase 2, Cell 2C, Unit 4

Owner:

Republic Services

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $2 M+

Mass excavation of 819,000 CY of material and installation of low permeability clay liner and leachate collection system of new landfill cell.

North Weld Landfill

Owner:

Waste Management Disposal

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $1.2 M+

We have constructed multiple cells at North Weld Landfill including Phase 3a Module 1 & Phase 3b Module 1. The liner systems included over 1.0 million cubic yards of excavation, over 60,000 cubic yards of clay liner, leachate drainage, sand drainage layer and leachate sump construction.

Mann Lake Slope Liner

Owner:

LaFarge North America, Inc.

General Contractor: 

Kelley Trucking Inc.

Contract Amount: $1.2 M+

The project included aggregate pit reclamation & slope liner construction South, Central, and North slope embankment liner projects and backfill under Park Avenue, Lakes 2 and 3. Mann Lakes was a complex project due to the dewatering and multiple embankment sources requiring mixing of soil materials to satisfy embankment specifications.

Sedalia Landfill Cell 6

Owner:

Waste Connections

General Contractor: 

Kelley Trucking Inc

Contract Amount: $1.1 M+

Excavation of approximately 350,000 CY of soil to construct new cell and tie into existing cell. Project included stockpiling of approximately 275,000 CY of excess material, construction of a low permeability soil liner and a leachate tank containment system, and all associated erosion and traffic control.

Duckworth Mine Slope Liner

Owner:

Martin Marietta Materials Group

General Contractor: 

Kelley Trucking Inc.

Overexcavation & Recompaction

Conservation Services, Inc., Phase 6 & 7

Owner:

Waste Management of Colorado

General Contractor: 

Kelley Trucking Inc.

Construction of landfill cell liner including excavation, cohesive soil liner, geomembrane liner and leachate collection system.