Client: Town of Eckley, Colorado
Description: Construction Management for the installation of an iron-based adsorbent treatment system to remove Arsenic from the Town’s two (2) wells, which separately supply 170 and 15 gpm.  This project included Construction Administration services, such as securing federal funding through DOLA Energy and Mineral Impact Assistance Grant, CDPHE Drinking Water Construction Grant, USDA Rural Development, and a Federal State and Tribal Assistance Grant.  RGA also prepared plans, specifications and bidding documents.

Location: Parker, Colorado
Description: Grading, drainage, wetland consultation, utility relocation, pedestrian/bike/equestrian paths, soccer field, two softball fields, playground, sodding, and irrigation system.

Description: Bridge replacement and Main Street/Highway 119 intersection improvements, including signalization and construction of acceleration and deceleration lanes, and extensive retaining walls on State Highway 119.

Location: Avon, Colorado

• Water and sewer lines for ski area
• 2.0 MGD water collection and diatomaceous earth water treatment system
• 2.0 MG water storage tank
• 500 gpm temporary cartridge filter WTP
• 1,000 gpm raw water pumping station and river diversion system
• 1,000 gpm intermediate raw water pumping station
• 2 miles of Village Road, reconstruction of 1 mile of U.S. Highway 6, and reconstruction of the intersection of U.S. Highway 6 and Village Road

Location: Black Hawk, Colorado
• 0.5 MGD activated sludge WWTP
• 8 miles of sewer lines
• Weir modifications at WWTP

Location: Centennial, Colorado
• 10,000 LF of 12" and 18" sewer outfall

Location: San Luis, Colorado
• 150,000 gpd aerated lagoon system
• 5 miles of water and sewer lines
• 10,000 water storage tank

• Various water and sewer main extensions and replacements
• Reconstruction of 18" sewer outfall line
• Sliplining rehabilitation of 30" storm sewer
• Reconstruction of 1/2 mile of street, curb and gutter, sidewalk, and storm drain for 22nd Avenue
• Reconstruction of 1/2 mile of street, curb, gutter and sidewalk for Harlan Street, a major collector street
• Replacement of over 20 "gutter culverts" with crosspans, combined with handicap ramps at various locations in the City
• Sliplining of Ashland storm drain

Location: Edgewater, Colorado
• Reconstruction of 1,300 LF of 17th Avenue in the City of Edgewater, Colorado

• Modifications to 1.0 MGD WTP
• Modifications to 0.5 MGD WWTP

Location: Adams County, Colorado
Description: Design and construction services including grading, paving, drainage, water, sanitary sewer, security fencing, striping, and railroad spur for a new automobile delivery and processing terminal capable of storing 700 autos.

Location: Keystone, Colorado
• 250 gpm WTP at Arapahoe Basin Ski Area Various water and sewer lines

Location: Parker, Colorado
• 1.06 MGD WWTP with slow rate land application system and 37 million gallons effluent storage reservoir
• 5,000 gpm, 3 pump water booster pump station (system sized for ultimate 8000 gpm)
• 2.5 MG buried water storage tank
• Several miles of water and sewer mains ranging from 8 to 24 inches
• 1 mile grading, paving, drainage
• Lincoln Avenue, 4-lane arterial
• 1/2 mile grading, paving, drainage Jordan Road, 4-lane arterial
• 3 wellhouses, ranging from 250 to 500 gpm
• 3 detention- ponds, 1 with decorative fountain and pump station
• 1,000 gpm greensand water filtration plant

Clients: Urban Drainage and Flood Control District and the City of Edgewater, Colorado
Description: Project consisting of 800 LF of reinforced concrete box culverts; 735 L.F. of 54" reinforced concrete pipe, 1,500 LF of reconstruction of 24th and 22nd Avenues; complete reconstruction of Edgewater's Citizen's Park and horseshoe courts, restrooms, pavilion, playground, and lighting for ballfield.

Client: Town of De Beque, Colorado
Description: Design and Construction Management for increasing the capacity of the existing surface water treatment plant from 144,000 GPD to 396,000 by addition of a membrane filter.

Client: Cherry Creek Vista Park and Recreation District
Description: The RGA team provide construction management and was the general contractor for the construction of a $1.6 million new pool facility for the Cherry Creek Vista Park and Recreation District. The project consisted of the demolition of the existing pool and locker rooms, construction of a new pool, diving decks, picnic shelters, equipment and chemical storage building, and locker rooms remodel. The project also included new tennis courts, landscaping and parking lot improvements. 

Client: Sable-Altura Fire District
Description: The RGA team provided construction management for this design-build project, which included 5,000 SF addition to the metal fire station to house two (2) additional engines and an Arial Response Vehicle, as well as a remodel of the existing metal building fire station to accommodate offices and additional engine storage. Construction also included a new HVAC system and lighting to ensure compliance with local Building Codes, and new exterior storage parking for equipment.

• 0.75 MGD flocculation, sedimentation, filtration, and chlorination WTP
• 0.50 MG water storage tank
• Various waterline replacements
• 560 gpm potable water booster pump station
• 560 gpm raw water pumping station and river diversion system
• 2.5 miles of raw water transmission line

Location: Parker, Colorado
• 2,275 gpm ten-well collection, wellhouse, and treatment system
• 500,000 gpd Wastewater Treatment Plant expansion with land application system and 54 effluent storage reservoir
• Two 600 gpm multi-completion wells, wellhouse and treatment
• District-wide central telemetry system for two wastewater treatment plants, two water storage tanks, two water pump stations, three sewage pump stations, and ten wells
• 2,100 gpm, four-pump booster pump station
• 2.0 and 1.0 MG underground water storage tanks
• Various water and sewer mains ranging from 8 to 30 inches
• 3.0 MG underground post-tensioned concrete water storage tank
• 2.5 miles of 30", 24", 20" and 16" water transmission lines

Location: Larkspur, Colorado
• 500 gpm greensand iron removal water treatment plant and pump station

Location: Steamboat Springs, Colorado
• 25,000 GPD non-discharging WWTP
• 100,000 gallon water storage tank
• Wellhouse and treatment system
• Various water and sewer mains

Location: Douglas County, Colorado
• Construction management for $16 million of street, drainage, landscaping, water distribution and sanitary sewer improvements within Stonegate Village

Location: Parker, Colorado
• Grading, paving, curb and gutter 3,600 LF of Keystone Boulevard
• Rehabilitation of concrete pavement, 4-lane arterial

Location: Denver, Colorado

Four Lakes Drainageway Improvements
Design and construction services of improvements to approximately 2,300 LF of Four Lakes Drainageway. Design included several small drop structures, storm sewer outlet erosion protection, and a pedestrian low-water crossing.

Niver Creek Rehabilitation Maintenance, Phase I
Design and construction observation of a baffle-chute drop structure on Niver Creek with a 100-year design capacity of 1,400 cfs. Structure included a 37-foot prefabricated bridge.

Niver Creek Rehabilitation Maintenance, Phases II, III and IV
Preliminary design and construction services of improvements to 3,200 LF of Niver Creek in Thornton, Colorado. Three design options were prepared for each of three reaches, including construction cost estimates for each. Design options included baffle-chute drop structures, vertical concrete drops, boulder drops, and several channel lining alternatives.

Description: Design, specifications and construction management of a 1.9 mgd sewage lift station and coordination with Insituform for the lining of 1,600 L.F. of 10" A.C.P.  The design consisted of 675 linear feet of 10" P.V.C. force main, connection to existing force main, removal of equipment inexisting pump station and wet well, design of new submersible pumps and installation in existing wet well and new utility vault, electrical hook-ups, suite restoration and miscellaneous items.

Location: Alamosa, Colorado
Description: Construction of 15,000 SF general aviation apron and helipad, including lighting, grading, paving, drainage and striping.

Location: Arapahoe County, Colorado
Description: Construction of 5,000 LF of apron edge taxiway asphalt overlay, including grading, petromat, roto-mill, overlay, drainage and striping.

Location: Colorado Springs, Colorado
Description: Overlot grading of two taxiways and apron.

Location: Converse County, Wyoming
Description: Grade infield and install a 24" drain system.

Location: Cortez, Colorado
Description: Construction of runway overlay and porous friction course, including paving, grading and striping.

Location: Denver, Colorado
Description: Construction inspection services for Area 3, including engineering, inspection and clerical responsibilities involving civil, electrical and safety inspections.

Location: Jackson, Wyoming
Description: Construction of 250,000 SF of 11" and 13" thick concrete commercial aircraft apron, including grading, drainage, structural concrete, asphalt, lighting and striping.

Location: Missoula, Montana
Description: Built loop road at terminal; construct new parking lot; replace broken portions of concrete parking apron; light Runway 7/25; and install new electrical controls.

Location: Rifle, Colorado
Description: 1,400 LF extension to runway, including grading, drainage, paving, lighting and striping.