Environmental

Chatfield Storage Reallocation Project

Contract Amount: $16 M+

General Contractor: 

Chatfield Reservoir Mitigation Company, Inc.

Owner:

Chatfield Reservoir Mitigation Company, Inc.

Danish Flats Water Ponds, Phase 1 & 2

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

Contract Amount: $8.8 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

Danish Flats Environmental Services

SIA High Line Canal Filing 16

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.

Contract Amount: $7.5 M+

General Contractor: 

LVI Environmental Service

Owner:

City and County of Denver

Front Range Landfill, Cell 12 & 13 Liner Excavation

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

Contract Amount: $4.7 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

Waste Connections

Howe Pit Reclamation

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.

Contract Amount: $4.6 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

LaFarge North America, Inc.

Stapleton Filing 7 Stockpile Asbestos Remediation Project

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.

Contract Amount: $3.9 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

City and County of Denver

Front Range Landfill Cell 14 Construction

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

Contract Amount: $3.9 M+

General Contractor: 

Kelley Trucking Inc

Owner:

Waste Connections

Southern Cross North Water Ponds

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

Contract Amount: $3.1 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

Southern Cross Environmental Services

Westerly Creek North

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.

Contract Amount: $2.2 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

Park Creek Metro District

Tower Landfill Phase 2, Cell 2C, Unit 4

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

Contract Amount: $2 M+

General Contractor: 

Kelley Trucking Inc

Owner:

Republic Services

North Weld Landfill

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.

Contract Amount: $1.2 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

Waste Management Disposal

Mann Lake Slope Liner

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.

Contract Amount: $1.2 M+

General Contractor: 

Kelley Trucking Inc.

Owner:

LaFarge North America, Inc.

Sedalia Landfill Cell 6

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.

Contract Amount: $1.1 M+

General Contractor: 

Kelley Trucking Inc

Owner:

Waste Connections

Duckworth Mine Slope Liner

Overexcavation & Recompaction

General Contractor: 

Kelley Trucking Inc.

Owner:

Martin Marietta Materials Group

Conservation Services, Inc., Phase 6 & 7

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

General Contractor: 

Kelley Trucking Inc.

Owner:

Waste Management of Colorado