Construction Administration

RGA maintains a staff of experienced construction administration personnel to complement our design capabilities.  We have developed computer software to assist our construction management staff with job cost, pay estimates, project tracking, and scheduling. ​

Expertise Includes:
(see below for representative projects)

​Bidding
Services
​

 Pre-Bid, ​
Pre-​Construction,
​& ​Progress Meetings

Safety
Procedures
Monitoring​​

Construction
Observation &
​Documentation​

Submittals, 
Pay Applications, & ​
​Change Orders

​Acceptance
Procedures
​

Civil Rights &
​Labor ​Compliance
​

​Payment
​Procedures

The RGA Advantage

• We have the experience and expertise of an established firm.
  • ​​In the past 35 years, the RGA team has completed projects for numerous clients throughout Colorado.  Our firm is familiar with state and regional regulations, specifications, and procedures.
• Extensive Experience with Public Agencies
  • ​Our team has coordinated construction with multiple public agencies, including: Colorado Department of Local Affairs (DOLA), Colorado Department of Public Health and Environment (CDPHE), Colorado Department of Transportation (CDOT), Denver Regional Council of Governments (DRCOG), Environmental Protection Agency (EPA), Federal Emergency Management (FEMA), Urban Drainage Flood Control District (UDFCD), United States Army Corps of Engineers, and United States Department of Agriculture (USDA). 
• Familiar with Regulatory Compliance
  • Our team is familiar with the requirements of utility, irrigation and railroad companies. We will work directly with governmental funding and other participating agencies to effectively adhere to their specifications throughout a project, and successfully integrate projects such as the: Buy American Act, Davis Bacon Act, and American Recovery and Reinvestment Act.
• Effective Project Management Procedures
  • Our team has established procedures to ensure that work proceeds efficiently, on-schedule and within budget. We have developed computer software to assist our staff with job cost, pay estimates, project tracking and scheduling. 
• ​​Knowledge of All Stages of the Construction Process
  • Our team provides expertise at all stages of the construction process. We review project designs, cost estimates, budgets, constructions schedules and any agreement between the client and a developer to ensure that the client’s interests are protected. We also assist municipalities with review of reimbursement agreements, intergovernmental agreements (IGAs), bonding, and Letter of Credits. As the project progresses, we can work with finance departments to coordinate the release of appropriate securities. Our inspectors will ensure that the construction meets the standards of the client and issue initial acceptance, and final acceptance following an appropriate warranty period. 

Contact:

Ricardo J.F. Goncalves, ​P.E.

PRESIDENT
​
Direct Line: 303-468-8484
Cell: 303-901-2367
[email protected]


James R. Landry, P.E., CWP

CHIEF OPERATING OFFICER
​
Direct Line: 303-468-8482
Cell: 303-901-2444
[email protected]
​​

Our Team / Contact Us

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Representative Projects
(Click Project Type to Open)

On-Call Construction Administration

Applewood Sanitation District, Jefferson County, Colorado

​RGA performs all designs, manages and inspects annual repairs to the district’s sanitary sewer system. This work includes bidding and contracting firms to perform the videos, reviewing videos, making assessments and prioritizing the rehabilitation or replacement of lines, providing reports to the district, producing design plans and contract documents, advertising, bidding, and construction management inspections of around 5,000 LF of 8”, 10” and 12” cured-in-place pipe per year.

City and County of Broomfield, Colorado

​RGA provided construction inspection services for water, sanitary sewer, storm, and roadway projects to the City and County for over five years. Our services consisted of construction inspections, observations, and conducting construction progress meetings The inspections and observations were summarized in daily observation reports, created by the observer/inspector. Representative projects include: Great Western Park, Venue at Arista, Anthem Filings, 136th Avenue Reconstruction and Lowell Boulevard Improvements at Mountain View Terrace.

City of Brush!, Colorado

​RGA performs on‐call services on an as‐needed basis. This work includes engineering, planning and construction management for roadways, drainage facilities, water and sewer utilities, development review, and construction management. 

City of Littleton, Colorado

​RGA performed construction management services and erosion control review for all new construction for several new subdivisions which included new additions to buildings, sanitary sewer mains and sanitary services, associated manholes, including installation of new storm sewer systems and settling ponds. The work also included the installation of new infrastructure including new sidewalks, ramps, curb & gutter, crosspans and complete installation of new streets from grading to final striping and signage.

City of Sheridan, Colorado

​RGA has been the City Engineer, and was the City Planner, and Chief Building Official for this city for almost ten years, providing a variety of engineering, planning, building inspection, and business license on-call services. In addition to this variety of work, we managed the development of the city’s River Point redevelopment project, a project comprising of 130 acres.  Other projects RGA has performed include bridges, street rehabilitation, trails, water and sewer utilities, drainage work, building inspections, comprehensive planning, municipal code review and revision, site development, subdivision review and grant applications, and construction administration.

City of Wheat Ridge, Colorado

​RGA provided on-call construction inspection services for City street projects and permitted work in the right-of-way. This work included daily inspection reports, warranty inspections, design plan review, traffic control plan review, and quality assurance on street cut permits and capital improvement projects.

Clear Creek County, Colorado

​RGA provided on-call engineering and planning services to the Community Development Department related to development, driveway, excavation, and floodplain applications. This included review of construction drawings, drainage reports, transportation, impact reports, and other similar documents associated with land development projects to ensure compliance with regulations and conditions for approval. This also included review of plans and reports, verify compliance with regulations, and administer BMP’s, driveway, grading, drainage and stormwater management, retaining walls, and floodplain development permits. We also completed site inspections to confirm BMPs and compliance to approval site plans. RGA also assisted the county with an update to their site development and grading standards.

Crestview Water and Sanitation District, Denver, Colorado

​RGA provides development review and construction observation services to the district. In addition, RGA maintains and runs the sanitary sewer and water model. As part of this process, RGA obtains all State, County, and Denver Water approvals and permits.  

Deer Creek Metropolitan District, Jefferson County, Colorado

​RGA has been the District Engineer for this metropolitan district for 28 years, performing on-call services on an as-needed basis. The activities we have performed over the years have included engineering and construction management for roadways, drainage facilities, storm water management, water and sewer utilities, development review and construction management. 

Denver Water, Denver, Colorado

​RGA provided on-call construction management and inspection services to Denver Water. Our team utilized AWWA and DPE CPCS Standards for all projects completed and worked closely with the construction division of Denver Water. Representative projects included Eldorado Canyon infrastructure repairs, Antero Reservoir, Strontia Springs, RTD Northwest Corridor Conduits Nos. 72, 94, 125 and Foothills Treatment Plan Phase I and III.

​Highland Park Metropolitan District, Arapahoe County, Colorado​

​RGA monitors and operates the District's re-circulating water system for the ponds and channels associated with the landscaped area known as Phillips Gulch. This includes the pumps, motors and variable frequency drive, and other controls for the pumping system. RGA inspects pond fountain systems, valve pits, variable speed drive, pump screen, pump motor, and pump house. RGA also assists with any locates, or any other on-call construction administration or engineering services the district may need.

​Lincoln Park Metropolitan District, Douglas County, Colorado

​RGA has been the District Engineer for this metropolitan district for 34 years, performing on-call services on an as-needed basis. The activities we have performed over the years have included engineering and construction management for roadways, drainage facilities, MS4 management, water and sewer utilities, development review, rate studies, and construction management. 

Paintbrush Hills Metropolitan District, El Paso County, Colorado

​RGA has been the District Engineer for this district for 6 years, performing on-call engineering and construction administration services on an as-needed basis.  This work has included development review for Filings No. 13A through 13E, creation of water master plan, design and construction management of a new administrative building, analysis of an emergency lift station overflow. We are currently assisting the district with the design and construction management of lift station upgrades, construction management of 150 gpm wellhouse for wells #3 and #4, and the preliminary design of a 0.5 mg water storage tank, 4000 gpm pump station, and a new well and pump house.

Spring Mesa Metropolitan District, Arvada, Colorado

​RGA has been the District Engineer for this metropolitan district for 3 years, performing on-call services on an as-needed basis. 

Stonegate Village Metropolitan District, Douglas County, Colorado

​RGA was the District Engineer for this metropolitan district for 28 years, performing on-call services on an as-needed basis. The activities we have performed over the years have included engineering and construction management for roadways, drainage facilities, water and sewer utilities, development review and construction management. 

Town of Buena Vista, Colorado

​RGA was the Town Engineer for this Colorado town for seven years, and now is staff support providing on-call services. We have performed planning, design and construction administration for street rehabilitation, streetscape, drainage studies, drainage facilities, trails, water line replacement and extensions, sewer lift station, water master plan and rate studies, and other miscellaneous projects. We also provide development review and referral agency management to the town.

Town of Erie, Colorado

​Our services consisted of construction inspections, observations, and conducting construction progress meetings The inspections and observations were summarized in daily observation reports, created by the observer/inspector. Representative projects include Colliers Parkway and Erie Highlands 5, 6, 7.

Town of Gilcrest, Colorado

​General on-call services, including water, wastewater, drainage, and roadway design, construction management, and development review.

Town of Jamestown, Colorado

​General on-call services, including waterline replacement, drainage, and roadway design, park design, construction management and development review. 

Town of Kersey, Colorado

​RGA was the Town Engineer for this town for 25 years, providing on-call engineering and construction management services for a variety of water, sewer, street, and drainage projects, development review of many development projects, and construction management.

Town of Kremmling, Colorado

​General on-call services, including water, drainage, and roadway design, construction management, and development review.

Town of Lochbuie, Colorado

​RGA has performed construction management services for all new construction for several new subdivisions which have included new water and sanitary sewer amins, water and sanitary sewer services, associated manholes and fire hydrants, including installation of new storm systems.

Town of Mountain View, Colorado

RGA provides engineering services to the Town of Mountain View, acting as the general town engineer, processing development reviews, conducting construction observation, and preparing plans, studies, estimates, and reports for an SRF/DOLA funded sewer rehabilitation projects, and a streets, curb and gutter, sidewalk and drainage improvements project. RGA is also the Operator in Responsible Charge of the sanitary sewer system. 

Westridge Sanitation District, Jefferson County, Colorado

​RGA performs construction observation of new development infrastructure and annual CIP’s.  This work includes observation of all new construction of sanitary sewer mains and sanitary services and associated manholes. 

Construction Administration of DRAINAGE Projects

City of Littleton, Colorado
​On-Call Engineering Services

​RGA provides on-call services to the City of Littleton Public Works Department for development review services. Services include, but are not limited to the review of drainage reports, review of site development plans, review of subdivision exemptions, review of stormwater management plans, review of construction plans, review of erosion control plans, preparation of comment letters and PDF redline comments, attend meetings or site visits with applicants or their engineers (as-needed), and perform construction and stormwater site inspection/site visits.

Colorado Technology Center Metropolitan District, Louisville, Colorado
Dillon Road and 104th Street Improvements

​This roadway rehabilitation and improvement project that amounted to more than $2,200,000 and consisted of approximately 4,000 LF of roadway and 4,500 LF or curb, gutter, and sidewalk.  The project required the construction of a portion of Urban Drainage Flood Control District Drainageway G, adjacent to this site, and consisted of 5,000 LF of drainageway channel, two major culvert crossings, and three grouted boulder drop structures.  The RGA team provided the design and construction administration for the project and coordinated the approvals with the City of Louisville, Urban Drainage Flood Control District, concurrent lift station design, and various utility companies. 

Deer Creek Metropolitan District, Jefferson County, Colorado
Massey Draw Drainageway Improvements

Drainageway improvements to Massey Draw were required to repair major erosion and protect existing trail crossings.  The project consisted of grouted, stacked boulder armorment of the trail embankment and a grouted boulder drop structure with creative channel bank treatment and stabilizing channel head cutting protection.  This project involved review and permitting through Jefferson County Planning and Engineering, Federal Emergency Management Association, and the Urban Drainage Flood Control District.

Parker Water and Sanitation District, Parker, Colorado
20 Mile Road Raw Water and Reclaimed Water Lines Phase I, II, III, and IV

The RGA team provided design, construction management, observation, and administration for reclaimed water and raw waterlines consisting of 23,000 LF of 16-inch pipe, 3,000 of 24-inch pipe and 2,000 of 12-inch pipe.  This series of projects also included: 11,600 LF of dual 16-inch PVC effluent and 5,500 LF of 24-inch, 16-inch and 12-inch PVC raw water lines, including 600 LF of 54-inch diameter tunneling and casing under existing streets. 

Parker Water and Sanitation District, Parker, Colorado
Cherry Creek Diversion Structure

The RGA team designed a structure on Cherry Creek to divert water to a pump station supplying the Rueter-Hess Reservoir. The final structure has a wide foundation constructed perpendicular to the flow of Cherry Creek with retaining walls along each bank. The project utilized 2,340 CY of reinforced concrete and required a major dewatering effort. The RGA team also completed all construction management and administration for the project. 

Parker Water and Sanitation District, Parker, Colorado
​Clarke Farms Lift Station

RGA staff provided inspection and construction administration for this 3,000 GPM lift station with the ability to serve 1,400 homes. The RGA team provided site drainage and detention requirement for site layout.

Stonegate Village Metropolitan District, Douglas County, Colorado
​Chambers Road Extension

The RGA team provided the design and construction management for the extension of approximately 1,300 LF of Chambers Road from Lincoln Avenue to a new high school.  Chambers Road is a 4-lane arterial street, and the project included the design of a full signalized intersection with acceleration/deceleration and left turn lanes at the intersection of Chambers Road and Lincoln Avenue.  Lincoln Avenue is a 4-lane major arterial street.  The project included the extension of 60” drainage culverts, inlets, and a 24” storm drain system.  The outlet system required Urban Drainage Flood Control District review and approval.  The project required coordination and approval by Douglas County.

Town of Buena Vista, Colorado
Town Engineer

​RGA was the Town Engineer for this Colorado town for seven years, and now is staff support providing on-call services. We have performed planning, design and construction administration for street rehabilitation, streetscape, drainage studies, drainage facilities, trails, water line replacement and extensions, sewer lift station, water master plan and rate studies, and other miscellaneous projects. We also provide development review and referral agency management to the town.

Town of Jamestown, Colorado
James Creek Irrigation Ditch

The RGA team performed engineering design and provided construction management services for the replacement of portions of James Creek Irrigation Ditch that were destroyed during the 2013 floods. This work consisted of preparing construction documents, advertising for bids, and assisting with the award of contracts.

Town of Mountain View, Colorado
Wastewater Collection System and Storm Drainage Improvements

RGA assisted the town in applying for a Colorado Water Resources and Power Development Authority Water Pollution Control Revolving Fund Design and Engineering loan, which provided funds for the engineering associated with rehabilitation to their existing collection system, and the reconstruction and installation of a new stormwater drainage system. We also assisted with the design and construction administration of these projects. 

Town of Nederland, Colorado
​Community Center Generator

RGA assisted with design and construction management of a new generator to mitigate flood damage at an emergency evacuation center. 

Town of Parker, Colorado and Mile High Flood District
Longs Way Tributary Improvements

RGA provided the design and construction management for the installation of two (2) regional detention ponds.  The regional facility improvements consist of two detention ponds, 600-feet of storm sewer, and a connection structure to the existing Town of Parker drainage system.  The detention ponds provide 6.0 acre-feet of storage and 1.2 acre-feet of water quality treatment.  

Town of Parker, Colorado and Mile High Flood District
Sulphur Gulch Channel Improvements - Phase II

Severe erosion along the banks of Sulphur Gulch exposed abandoned irrigation lines and caused the collapse of a portion of the pedestrian trail, as well as damage to the embankment of the Bar CCC reclaimed water pond.  The RGA team acted as design engineer and construction manager for the channel improvements, which included a sculpted concrete drop structure, a grouted riprap grade control structure, and buried riprap channel revetment to increase channel stability. The improvements resulted in a lower water surface elevation during the 10-year storm event. The project also required habitat restoration, wetlands mitigation, and protection of the regional trail system. RGA designed 850 LF of channel improvements along Sulphur Gulch adjacent to the Bar CCC Park. The project involved evaluation of the alignment, approvals from federal, state and local agencies, and construction management. Channel improvements included a sculptured concrete drop structure, grouted riprap grade control structure and buried riprap channel revetment. Design parameters included design coordination with existing bridge abutments and piers, the connection and re-alignment of the Town of Parker Regional Trail System, access from the Bar CCC parking area, and the synchronization with the existing Parker Water and Sanitation District mixing station and associates outfall/channel improvements to Sulphur Gulch at the termination of this project.

Construction Administration of Flood Recovery Projects

Town of Estes Park, Colorado
2013 Flood Repair Projects

This project consisted of 22 separate repair areas. Work included establishing construction easements, survey pins, repairs and replacements for roadways, trails, retaining walls, repairs to asphalt, concrete, bridges, swales, embankments, and slope and bank stabilization. RGA provided design services including survey, geotechnical and environmental reports and evaluations. RGA produced design plans, contract documents, cost estimates, and has advertised, bidding services and full-time construction management for the town. As part of this work, RGA coordinated with the Town of Estes Park, CDOT, FEMA, all utility providers and obtained required clearances and permits. On behalf of the Town, RGA produced temporary construction easements and exhibits and met with affected property owners to explain the project and obtain signatures for the temporary construction easements. RGA assisted the Town with quarterly reports, scope change requests, and documentation for entry into the EMGrantsPro system. In addition, RGA assisted the Town to ensure that all work complied with the Town of Estes Park, CDOT, FHWA and FEMA requirements and regulations.

Town of Jamestown, Colorado
James Creek Irrigation Ditch Reconstruction

The RGA team performed engineering design and provided construction management services for the replacement of portions of the James Creek Irrigation Ditch that were destroyed during the 2013 floods. This work consisted of preparing construction documents, advertising for bids, and assisting with the award of contracts.

Town of Jamestown, Colorado
Town Square Park

RGA team members performed the design of and the construction management and construction inspection of the reconstruction of the 2013 flood destroyed Town Square Park. The work consisted of preparing contract documents, advertising for bids for the various work trades required to rebuild the park, including curb and gutter, sidewalk, a new gazebo, power to the gazebo, bike stations, fencing, and a foundation for the gazebo. RGA assisted with the award of the contracts, then performed all the inspections for the work product of the various trades, prepared daily reports, reviewed and approved change orders.  

Town of Lyons, Colorado
Apply Valley Waterline Relocation

During the September 2013 floods, the Town of Lyons experienced extreme creek bed erosion which caused severe damage to the town's transmission water main. Coordinating with FEMA, the town decided to relocate the line to a more resilient location away from the floodway. RGA assisted with construction management of the water line replacement, and had to follow all HUD and FEMA goals and reporting requirements.

Town of Nederland, Colorado
​September 2013 Flood Repair Project

This project consisted of 7 separate repair areas. Work included replacements for roadways, culverts, repairs to road surface, swales, and slope and bank stabilization.  RGA is familiar with the latest versions CDOT Local Agency Manual, CDOT Construction Manual, CDOT Field Materials Manual and the procedures associated with maintaining compliance for FHWA, FEMA and CDOT funded projects. RGA has a great working relationship with FEMA and a comprehensive understanding of the process and procedures that need to be followed in order to maintain compliance and ultimately funding.

​​Construction Administration of Land development Projects

Berkley Homes, Parker, Colorado
​Horseshoe Ridge

​RGA provided construction administration for a 33-lot subdivision with 10 sub-consultants. From pre-construction to warranty acceptance. The services of the RGA team included: scheduling, contractor service agreement, payment application and coordination with the Town of Castle Rock and the Horseshoe Ridge Metropolitan District.   

Lincoln Park Metropolitan District, Douglas County, Colorado
Engineering and Construction Administration Services

​RGA provided engineering and construction administration services for a mix of single and multi-family residential, commercial and office industrial development on 1,600 acres. Design included the preparation of the master infrastructure plan; design and construction administration for domestic water wells, water treatment, storage and pumping, transmission facilities; sewage treatment plant with effluent storage and land application irrigation system; wastewater collection systems; and 1.1 miles of four-lane arterial roadway with two bridges. 

Stonegate Village Metropolitan District, Douglas County, Colorado
Engineering and Construction Administration Services

​The RGA team provided design of an overlot grading plan, final plat, drainage study, sanitary sewer system and water system for 103 lots. Our team also provided construction administration for $21 million of road, drainage, utility and landscape improvements for the development of 800 residential lots. 

Construction Administration of Roadway Projects

City of Dacono, Colorado
Street Rehabilitation Project

​The RGA team provided the design and construction administration for this three phase, three year project.  The project included all water transmission lines, meters, and services; repaving most of the streets, reconstruction of deteriorated curb, gutter, and sidewalk; construction of storm drain facilities; and replacement of most of the sanitary sewer lines in the older portion of the city.  Traffic control, minimizing utility disruption, and public relations were significant construction issues. RGA performed the design, prepared the plans, specifications and bid documents, conducted the bidding process, and provided the construction administration for this three-year, three-phase project. The project consisted of removing and replacing all of the existing asphalt pavement, most of the sidewalk, curb, and gutters, all of the cross pans, installing new handicap ramps and new storm drain inlets and pipes. The project also included replacing all of the water mains and services, installing new meters, and replacing a large portion of the sanitary sewer system.  

City of Sheridan, Colorado
2016 Sheridan Bond Improvement Project (SBIP)

The 2016 Sheridan Bond Improvement Project (SBIP) included design and construction observation for improvements to roadways and address drainage traffic issues, summarized in the 2012 Capital Improvement Plan. The project consisted of 15,000 linear feet of roadway reconstruction and drainage improvements. Compaction grouting was utilized to efficiently and safely strengthen the subgrade beneath roadways sections over landfill material.  The 2016 zone addressed immediate areas of concern in the City, specifically focusing on West Princeton Place, South Clay Street, South Irving Street, and drainage concerns in the Bottoms Drainage area, located in the northwest corner of South Platter River Drive and highway 285. These projects were designed in early 2016. Construction of the first four (4) projects was completed in late 2016. As part of this work, RGA coordinated with the City of Sheridan, Urban Drainage  and Flood Control District (UDFCD), Metro Wastewater Reclamation District (MWRD), Denver Water, and all utility providers and obtained required clearances and permits. On behalf of the City, RGA produced temporary construction easements and exhibits and met with affected property owners to explain the project and obtain signatures for the temporary construction easements.  

Colorado Technology Center Metropolitan District, Louisville, Colorado
Dillon Road and 104th Street Improvements

This roadway rehabilitation and improvement project that amounted to more than $2,200,000 and consisted of approximately 4,000 LF of roadway and 4,500 LF or curb, gutter, and sidewalk.  The project required the construction of a portion of Urban Drainage Flood Control District Drainageway G, adjacent to this site, and consisted of 5,000 LF of drainageway channel, two major culvert crossings, and three grouted boulder drop structures.  The RGA team provided the design and construction administration for the project and coordinated the approvals with the City of Louisville, Urban Drainage Flood Control District, concurrent lift station design, and various utility companies. 

Crestview Water and Sanitation District, Denver, Colorado
Goat Hill Phase IIB Waterline Replacement

The RGA team, working in conjunction with an Adams County roadway replacement project, provided design, contract bidding documents, construction management, and observation for 5,600 LF of 6-inch and 8-inch PVC watermain and lateral tie-ins, and 119 water services and meter pit relocations.  The project also included design and construction of street, sidewalk, and drainage improvements.

Lincoln Park Metropolitan District, Douglas County, Colorado
2019 Roadway Repairs Project

The RGA team assisted with the transfer of ownership for all district roadways to Douglas County. This project included contract document creation and bidding and construction administration for all improvements to the roadways, sidewalks, cross plans and curb and gutter. 

Rocky Mountain High Development, Rio Grande County, Colorado
Flying W Ranch - Access in CDOT Right-of-Way and Gravel Access Road Extension

RGA prepared construction plans and contract documents and handled construction administration for access to Flying W Ranch from State Highway 160 and extension of the gravel access road on the property. This work included coordination with Colorado Department of Transportation (CDOT) for an Access Permit, Notice to Proceed and culvert installation and coordination with San Luis & Rio Grande Railroad Company for a railroad crossing.

Stonegate Village Metropolitan District, Douglas County, Colorado
Chambers Road Extension

The RGA team provided the design and construction management for the extension of approximately 1,300 LF of Chambers Road from Lincoln Avenue to a new high school.  Chambers Road is a 4-lane arterial street, and the project included the design of a full signalized intersection with acceleration/deceleration and left turn lanes at the intersection of Chambers Road and Lincoln Avenue.  Lincoln Avenue is a 4-lane major arterial street.  The project included the extension of 60” drainage culverts, inlets, and a 24” storm drain system.  The outlet system required Urban Drainage Flood Control District review and approval.  The project required coordination and approval by Douglas County.

Stonegate Village Metropolitan District, Douglas County, Colorado
Stonegate Parkway

The RGA team provided the design and construction management for the construction of approximately 5,500 LF of divided arterial roadway connecting Jordan Road to Chambers Road in Douglas County.  Project elements included grading, paving, storm drain system, pedestrian paths, and landscaping.  This project also included a concrete pedestrian underpass and the installation of water and transmission and sanitary sewer collection mains.  The RGA team provided grading, paving, curb and gutter, storm sewer, and water transmission line for 4,300 LF of collector roadway. The project included construction of a single-span prestressed concrete bridge.

Town of Castle Rock, Colorado
Meadows A7 Well Facility

The Meadows A7 Well Facility is one of many well facilities that provides water for the Town of Castle Rock.  The facility has three (3) non-tributary deep wells that pump from the Dawson, Denver, and Arapahoe aquifers of the Denver basin. The RGA team prepared the design and construction documents, and provided construction-related engineering services for this project, which was completed in June of 2009.  The facility includes medium voltage (2,250 V) well pumps with variable frequency drives.  A masonry facility building houses hydraulic control equipment, electrical equipment, control systems, and instrumentation systems.  Construction included extensive site grading, buried piping, asphalt access road, erosion control systems, and sediment control mitigation.  

Town of Estes Park, Colorado
2013 Flood Repair Project

This project consisted of 22 separate repair areas. Work included establishing construction easements, survey pins, repairs and replacements for roadways, trails, retaining walls, repairs to asphalt, concrete, bridges, swales, embankments, and slope and bank stabilization. RGA provided design services including survey, geotechnical and environmental reports and evaluations. RGA produced design plans, contract documents, cost estimates, and has advertised, bidding services and full-time construction management for the town. As part of this work, RGA coordinated with the Town of Estes Park, CDOT, FEMA, all utility providers and obtained required clearances and permits. On behalf of the Town, RGA produced temporary construction easements and exhibits and met with affected property owners to explain the project and obtain signatures for the temporary construction easements. RGA assisted the Town with quarterly reports, scope change requests, and documentation for entry into the EMGrantsPro system. In addition, RGA assisted the Town to ensure that all work complied with the Town of Estes Park, CDOT, FHWA and FEMA requirements and regulations.

Town of Kersey, Colorado
9th Street Rehabilitation

The RGA team provided design and construction administration to the Town of Kersey.  9th Street is an arterial street that provides access to two (2) state highways.  Platte Valley High School is adjacent to the street and was beginning improvements to its stadium.  RGA coordinated with the school and designed street improvements that included an additional traffic lane with parking turnouts, curbs, gutters, walks, and speed control features.  The project also included drainage inlets and outfall facilities.  

Town of Kremmling, Colorado
ARRA-Funded road and Water System Improvements

​The RGA team served as project manager, design engineer, and construction administration for two (2) miles of waterline and roadway replacement.

Town of Superior, Colorado
Rock Creek Parkway and 88th Street Roundabout

This project involved the design and construction management of a previously signalized intersection.  The traffic signal was removed and replaced with a two-lane roundabout at the intersection of Rock Creek Parkway (four lanes) and 88th Street (two lanes).  The project also included major drainage improvements, an extensive retaining wall, patterned asphalt thermoplastic treated crosswalks, street lights, pedestrian lights, and landscaping.  Since the roundabout was completed, vehicular incidents have been dramatically reduced.

Town of Superior, Colorado
Coal Creek Drive Roadway and Utility Improvements

​The RGA team designed and managed the reconstruction of approximately 1,800 LF of Coal Creek Drive, an area located in the historic “Original Town” part of Superior.  Improvements included the removal of existing asphalt pavement and utilities, and construction of new asphalt, concrete curb, gutter, and sidewalk, sewer and water stub-outs, and a re-use irrigation system.  Construction proceeded in phases to minimize disruption to residents and local businesses.  The project also included extensive landscaping to upgrade the area’s aesthetic, while maintaining the historic feel of Original Town.   The RGA team designed and managed the reconstruction of approximately 1,800 LF of Coal Creek Drive, an area located in the historic part of Superior. Improvements included the removal of existing asphalt pavement and utilities and construction of new asphalt, concrete curb, gutter, and sidewalk, sewer and water stub-outs, and a re-use irrigation system. Construction proceeded in phases to minimize disruption to residents and local businesses. The project also included extensive landscaping to upgrade the area’s aesthetic, while maintaining the historic feel of Original Town.  

Construction Administration of Water and Wastewater Projects

Applewood Sanitation District, Jefferson County, Colorado
Sanitary Sewer Management

RGA is designing, maintaining and inspecting repairs to the district’s sewer system. This work includes bidding and contracting firms to perform the videos, reviewing videos, making assessments and prioritizing the replacement of lines, providing report to the district, producing design plans and contract documents, advertising, bidding and construction management inspection of these projects. 

Buckhorn Valley Metropolitan District, Gypsum, Colorado
Raw and Irrigation Water Capital Improvement Project

RGA designed and oversaw construction of eleven (11) major control structures which included flow meters, check valves and flow sensing valves. Pipe sizes ranged from as small as 4-inches in diameter to as large as 10-inches in diameter. The system is capable of sensing flows and automatically closing isolation valves if it is determined that there is a downstream leak or pipe break. The purpose of the control system is to ensure that a downstream pipe break does not cause a catastrophic failure of the gravity fed system.

City of Dacono, Colorado
Street Rehabilitation and Utility Project Phase I, II and III Water System Improvements

​The RGA team provided the design and construction administration for this three phase, three year project.  The project included all water transmission lines, meters, and services; repaving most of the streets, with reconstruction of deteriorated curb, gutter, and sidewalk; construction of storm drain facilities; and replacement of most of the sanitary sewer lines in the older portion of the city. Traffic control, minimizing utility disruption, and public relations were significant construction issues.  

City of Louisville, Colorado
Sports Complex Irrigation Pond Improvements

RGA was tasked with designing a pond lining system for the City of Louisville’s sports complex irrigation pond. This pond stores Regulation 84 treated wastewater for irrigation over the adjacent ball fields. Our team completed design and construction management of a new pond lining system for the City's sports complex irrigation pond. 

City of Monte Vista, Colorado
​Henderson Baffle Curtain Replacement

RGA assisted with the design and construction administration of the removal of deteriorating baffle curtains and the installation of baffle curtains at the Henderson WWTP. 

City of Monte Vista, Colorado
​Lariat Loop Lift Station Replacement

RGA designed the removal of the existing lift station and construction of a sanitary sewer lift station, valve vault, manholes, and force main. RGA also provided bidding and advertisement services, as well as construction management and inspection.

City of Westminster, Colorado
Semper 5.0 MG Clearwell Replacement

The RGA team provided construction management, inspection and documentation for drilled caissons, steel reinforcing, concrete, and post-tensioning for a buried DYK circumferential strand-wrapped concrete water tank on a slab-caisson foundation.  The project also included a valve vault and two (2) 60-inch pipe concrete encasements and special inspection final reports.

City of Westminster, Colorado
Northwest Water Treatment Facility

The RGA team provided third-party construction management, inspection and administration for this 20 MGD water treatment facility, which utilizes the Pall Micro-Filtration System with flocculation/sedimentation for pre-treatment.  Our firm provided plan review and cost evaluation and saved the City hundreds of thousands of dollars in final project cost through the value-engineering process. 

City of Westminster, Colorado
Reclaimed Water Treatment Facility

The RGA team provided construction inspection for two (2) 7,500 SF pre-engineered metal buildings over existing concrete sedimentation basins.  Duties included the inspection of the special epoxy paint over the structural steel and a unique HVAC system to reduce humidity.

Crestview Water and Sanitation District, Denver, Colorado
On-Call Engineering

RGA provides development review and construction observation services to the district. In addition, RGA maintains and runs the sanitary sewer model. As part of this process, RGA obtains all State, County, and Denver Water approvals and permits.  

Crestview Water and Sanitation District, Denver, Colorado
Annual Water Main Replacement

​From 2006 to 2015, the RGA team provided design, estimation, construction management, and observation/inspection for 22,760 LF of 6, 8, 10, and 12-inch PVC water mains and lateral tie-ins, and roughly 490 water services to replace existing 50 year-old lines in residential neighborhoods. 

Crestview Water and Sanitation District, Denver, Colorado
Goat Hill Phase IIB Waterline Replacement

The RGA team, working in conjunction with an Adams County roadway replacement project, provided design, contract bidding documents, construction management, and observation for 5,600 LF of 6-inch and 8-inch PVC watermain and lateral tie-ins, and 119 water services and meter pit relocations.  The project also included design and construction of street, sidewalk, and drainage improvements.

Crestview Water and Sanitation District, Denver, Colorado
Sanitary Main Rehabilitation

​The RGA team provided design, construction management and inspection for 14,000 L.F. of 8” cured-in-place pipe, re-establish 305 service connections, three point repairs and installation of four manholes. 

​Crestview Water and Sanitation District, Denver, Colorado
Pecos Street Grade Separation Project

The RGA team provided design review, construction management, and observation of approximately 1,500 LF of a 20-inch DIP transmission main replacement, including 150 LF of 32-inch casing bore under the Union Pacific Railroad.

​Crestview Water and Sanitation District, Denver, Colorado
Lowell Boulevard Water Main Replacement

The RGA team provided design, construction management, and observation for 4,300 LF of 8-inch PVC pipe, lateral tie-ins and services to replace an existing 50 year-old water main in a heavy traffic area.

East Alamosa Water and Sanitation District, Alamosa, Colorado
​2020 Water Distribution Project

RGA is providing design and construction management for improvements of the district’s drinking water distribution system and associated components. The project will consist of the rehabilitation of 12,627 LF of 6” water main and include the preparation of a Project Needs Assessment and an Environmental Assessment. This project is funded by CDPHE’s Planning Grant and Drinking Water Fund (DWF).

East Alamosa Water and Sanitation District, Alamosa, Colorado
​Colorado Highway 17 and State Highway 160 Intersection

RGA is providing the design and construction management for the replacement of 675 LF of 8” sanitary sewer and four manholes. This work will be in partnership with a CDOT project, where the District will be allowed to replace their aging infrastructure in this location after CDOT has removed the pavement and will additionally be allowed to utilize CDOT’s traffic control.

East Alamosa Water and Sanitation District, Alamosa, Colorado
Lift Station Numbers 1 and 2 Replacement

RGA provided design, construction management and assistance with permitting of two lift stations that replaced the two largest stations in the district. This project included permitting through CDPHE and the county health department and coordination with the City of Alamosa. The replacement lift stations eliminate the routine weekly pump pulling required of the existing failing stations. The newly designed stations include specialized equipment to help prevent pump clogging and pump maintenance. 

Fairways Metropolitan District, Boulder County, Colorado
Wastewater Treatment Plant Improvements

The RGA team designed a complete retrofit to the existing WWTP including new and more efficient aeration, 73,500 SF of synthetic pond liner and the addition of a re-circulating sand filter for tertiary filtration.  The WWTP operates entirely under CDPHE Regulation 84 and will operate as a 100% re-use facility. RGA also assisted the district in obtaining a 0% interest rate loan through the CDPHE green project reserve to fund the project.  RGA also managed the plant’s permit compliance issues. We also assisted with all construction administration, including Davis Bacon compliance. 

Forest View Acres Water District, El Paso County, Colorado

​This project consisted of approximately 7,500 LF of 4-inch PVC pipe, a crossing of Monument Creek and mitigation of the Pebble’s Jumping Mouse Habitat.  The project also included structure modification to the well pump station, piping modifications at the well pump station and a re-design and re-construction of a booster pump station.

Hi-Land Acres Water and Sanitation District, Brighton, Colorado
ARRA Water Distribution System Replacement

The RGA team provided design, construction management, administration, and inspection for 9,000 LF of 6-inch and 3,650 LF of 8-inch PVC water main replacement, including performing ARRA compliance services and inspection.  RGA helped the District secure ARRA funding for the entire project.

Kremmling Sanitation District, Kremmling, Colorado
Collection System and Wastewater Treatment Plant Improvements

RGA assisted the Kremmling Sanitation District with the design and construction administration of various collection system and wastewater treatment plant improvements including a cured-in-place pipe (CIPP) rehabilitation project, the design and permitting of a new influent flow monitoring station and the design and permitting of a pilot test. The pilot project tested a new and innovative technology for ammonia removal that allowed the district to keep their current lagoon system and comply with the impending ammonia discharge limits. The pilot test will save the district several million dollars and avoid the construction of an expensive mechanical wastewater treatment plant.

Paint Brush Hills Metropolitan District, El Paso County, Colorado
​Lift Station Upgrades

RGA designed and is assisting with the bidding and construction administration of a lift station valve vault including values, piping and earthwork. 

Paint Brush Hills Metropolitan District, El Paso County, Colorado
Wellhouse No. 3 and 4 Design and Construction Management

RGA is currently assisting with the design of a wellhouse for wells #3 and #4, including site plan approval through El Paso County. Additional services include bidding and construction administration. 

Parker Water and Sanitation District, Parker, Colorado
Zone 3 Transmission Main

This water transmission main, links several pressure zones and tank systems.  The project involved the installation of 45,000 LF of 30” DIP with pressure ranges between 50 and 250 psi. RGA served as the design engineer and construction manager for this project from conceptualization through final acceptance. 

Parker Water and Sanitation District, Parker, Colorado
West Interceptor Pedestrian Bridge

Development on the west side of Cherry Creek created the need for a new 14,000 L.F. interceptor in the southern part of the district’s service area.  RGA was contracted to design five miles of sewer line varying from 18” to 36” in diameter.  The alignment was in Preble’s Jumping Mouse habitat and construction was confined to 30’ in width.  RGA also designed a pedestrian bridge that could carry the pipe on the bottom and eliminate the need for a lift station.  RGA performed complete construction management. The alignment was in Preble’s Jumping Mouse habitat and construction was confined to 30’ in width. 

Parker Water and Sanitation District, Parker, Colorado
South Water Reclamation Facility

The RGA team has been associated with nearly every phase of construction on this plant since its inception in 1986.  The facility has undergone expansions, the addition of advanced waste treatment (AWT), and bio-solids removal, with the RGA team providing design and contract administration assistance, value-engineering, and the construction of two (2) clay-lined effluent storage reservoirs, one 54 MG, and the other 33 MG.

Platte Canyon Water and Sanitation District, Jefferson County, Colorado
​2020 DCIP Water Main Replacement Project

This project included approximately 3,681 LF of water main replacement with 6" PVC and 1,005 LF of water main replacement with 8" PVC. This work also included Denver Water coordination/approval, bidding services, and construction administration services.

Platte Canyon Water and Sanitation District, Jefferson County, Colorado
​2019 DCIP Water Main Replacement Project

This project included approximately 1,080 LF of water main replacement with 6” PVC, approximately 4,900 LF of water main replacement with 8” PVC, wet tap and cut in tee connections, water service reconnections, 3 asbestos cement pipe connections to existing mains and approximately 80 LF of asbestos cement pipe removal and asphalt patch paving, roto-milling and overlay of the section of street. 

Platte Canyon Water and Sanitation District, Jefferson County, Colorado
​2019 South Sheridan Boulevard Sanitary Sewer Main Replacement Project

​This project includes approximately 300 LF of 16” HDPE sanitary main removal and replacement with 15” PVC pipe, manhole reconnections, by-pass pumping, sanitary service reconnections, Spectra Shield touch up at manholes and asphalt patch paving, roto-milling and overlay of the section of street.

Southwest Metropolitan Water and Sanitation District, Jefferson County, Colorado
​2020 DCIP Water Main Replacement Project

This project included approximately 1,500 LF of water main replacement. This work also included Denver Water coordination/approval, bidding services, and construction administration services.

Southwest Metropolitan Water and Sanitation District, Jefferson County, Colorado
​2019 DCIP Water Main Replacement Project

This project included approximately 275 LF of water main replacement with 4” PVC, approximately 60 LF of water main replacement with 6” PVC and approximately 750 LF of  water main replacement with 12” pipe, wet taps and cut in connections, water service reconnections and asphalt patch paving, roto-milling and overlay of the section of street.

Southwest Metropolitan Water and Sanitation District, Jefferson County, Colorado
2018 South Pierson Street Water Main Replacement Project

This project included approximately 1,000 LF of 8” water main removal and replacement with 8” and 12” PVC pipe, and asphalt patch paving, roto-milling and overlay of the section of street, and vault replacement. Some of the work involved the removal of asbestos pipe. 

Southwest Metropolitan Water and Sanitation District, Jefferson County, Colorado
2018 West Parkhill Avenue Sanitary Sewer Main Replacement Project

This project included approximately 225 LF of 12” sanitary sewer removal and replacement with 12” PVC C-900 pipe, and asphalt patch paving, roto-milling and overlay of the section of avenue. The work is on collector avenue.

Stonegate Village Metropolitan District, Douglas County, Colorado
​5.7 MGD Water Treatment Plant

The RGA team provided design and construction management for all phases and subsequent expansions to this plant, originally constructed in 1989.  Work included manganese greensand filters for the removal of iron and manganese, a 2.5 MG storage tank and a 4,000 GPM pump station. 

Stonegate Village Metropolitan District, Douglas County, Colorado
​24-inch Waterline to the 3.6 MG Water Storage Tank

​The RGA team provided design, construction management, inspection and administration for 9,200 LF of Fastite and Flex Ring locking DIP 24-inch waterline to the 3.6 MG water tank. 

Stonegate Village Metropolitan District, Douglas County, Colorado
​3.6 MG Water Storage Tank and Yard Piping

​The RGA team provided construction management, inspection, and administration for a buried post-tensioned circular water storage tank, associated yard piping, valve vault and site landscaping and fencing. 

Stonegate Village Metropolitan District, Douglas County, Colorado
Well Facility Design

Over 20 years, the RGA team designed fourteen (14) well facilities for the district. All of those wells are in the Denver Basin aquifer and included well pump design, structural design, site design, agency approval, and construction management. Throughout the years, maintenance and replacement has been required at most of the facilities, and our firm provided engineering services for these occasions.

Town of Buena Vista, Colorado
Water System Improvements

The RGA team designed water system improvements and completed construction management for the Town of Buena Vista. These improvements consisted of:

• Upper Zone Water Storage Tank Project – 750,000 gallon glass fused to steel water tank with piping, concrete foundation, submersible tank mixer and all associated water appurtenances. 
• Water System Improvements – four (4) fire hydrant replacements, approximately 1,100 LF of waterline replacement, water service replacements, remove/replace of asphalt, rock/boulder excavation, and associated valving and appurtenances.
• Well No. 3 Retrofit – Retrofit of existing well for potable purposes, including associated valving and appurtenances. 
• Beldan Street Waterline Replacement – Approximately 540 LF of 6” water main replacement.
• Piñon Street Waterline Installation – Approximately 1,000 LF of 8” water main installation.

Town of Buena Vista, Colorado
Water Main Installation

The RGA team designed 600 feet of the Ivy League 12” water line interconnect to consolidate two pressure zones for the Town of Buena Vista. The RGA team also provided design, construction documents and cost estimates for the new 800 LF of Beldan Street’s 6” water mains with associated service line replacements, rock excavation, concrete pans and asphalt pavement. RGA provided as-needed construction management services for the Town. RGA designed and/or construction managed two watermain projects in this mountain town, 500 feet of 8” waterline in Arkansas Street and 760 feet of 12” waterline in Tee Road. Unique conditions included such rocky excavation that substantial suitable backfill material was required to be imported to replace the unsuitable excavated rocky material.

Town of Castle Rock, Colorado
​Castle Rock #6 Well Facility

The Castle Oaks #6 Well Facility is one of many well facilities that provides water for the Town of Castle Rock.  The facility has two (2) non-tributary deep wells in the Denver basin.  One pumps from the Denver aquifer, the other from the Arapahoe aquifer.  The RGA team prepared the design and construction documents, and provided construction-related engineering services for this project, which was completed in May of 2009.  The facility components include medium voltage (2,250 V) well pumps with variable frequency drives, and a masonry facility building that houses hydraulic control equipment, electrical equipment, and control and instrumentation systems.  

Town of Castle Rock, Colorado
​Meadows A7 Well Facility

The Meadows A7 Well Facility is one of many well facilities that provides water for the Town of Castle Rock.  The facility has three (3) non-tributary deep wells that pump from the Dawson, Denver, and Arapahoe aquifers of the Denver basin. The RGA team prepared the design and construction documents, and provided construction-related engineering services for this project, which was completed in June of 2009.  The facility includes medium voltage (2,250 V) well pumps with variable frequency drives.  A masonry facility building houses hydraulic control equipment, electrical equipment, control systems, and instrumentation systems.  Construction included extensive site grading, buried piping, asphalt access road, erosion control systems, and sediment control mitigation.  

Town of Del Norte, Colorado
​2016 Water System Improvements

RGA completed the design, CDPHE permitting, and construction administration for the lower water storage tank rehabilitation and booster pump station. The booster pump station was designed to be capable of moving system water from the distribution system to the upper water storage tank.

Town of Eckley, Colorado
Arsenic Groundwater Treatment Facility

The RGA team provided 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 planning, design, and construction administration services and securing federal funding through the DOLA Energy and Mineral Impact Assistance Grant, CDPHE Drinking Water Construction Grant, USDA Rural Development, and a Federal State and Tribal Assistance Grant.  Our team prepared the plans, specifications, and bidding documents.

Town of Eckley, Colorado
Water System Distribution Improvements

The RGA team provided initial evaluation and designed improvements for the town’s aging potable water distribution system.  Improvements included replacing approximately 15,000 LF of old pipe with new PVC pipe, fire hydrants, valves, and residential meters.  The RGA team implemented a semi-automated residential metering system.  In order to provide a tool for future system shut-downs, our firm also updated the town’s potable water system maps to include emergency valve shut-off plans and mapping of residential services. The RGA team prepared and coordinated grant and loan applications to obtain funding for this project, and performed all the construction administration and management. 

Town of Gilcrest, Colorado
Lagoon Rehabilitation

​Due to excessive leakage from the Town’s aerated lagoon system, the RGA team assembled a preliminary engineering report (PER) and funding application to obtain sufficient funding from DOLA to safely dispose of years of accumulation of sludge and to reline the lagoons.  Our team then prepared design plans and performed the construction administration of the project.  

Town of Jamestown, Colorado
​Rose M Waterline

RGA assisted the town with the design and construction management of the restoration and extension of the Rose M waterline to provide access to water for the residents of Jamestown and to provide a required source for fire protection and safety. This was funded by DOLA's Community Development Block Grant Disaster Recovery Infrastructure Grant.

Town of Jamestown, Colorado
Water System Improvements

After being decimated by the flood in the fall of 2013, the Town of Jamestown began to re-build. RGA was retained in 2015 by the town to provide engineering services for the 2015 water system improvement project, which consists of 1,600 linear feet of pipe replacement, upgrades to the town's water treatment plant, rehabilitation of the town's water storage tanks and the installation of mixing systems in the town's potable water storage tanks. 

Town of Kremmling, Colorado
​DOLA Water System Improvements

The RGA team provided design, construction administration, and inspection as requested for 22,000 LF of 8-inch PVC water main, tie-ins and 260 water services to replace an existing 50 year-old line.  Unique features of this project were the unknown locations of the old existing 4-inch and 6-inch cast iron waterlines and appurtenances.

Town of Kremmling, Colorado
​ARRA Road and Water System Improvements

The RGA team served as project manager, design engineer, and construction administrator for two (2) miles of waterline and roadway replacement.

Town of Mountain View, Colorado
​2019 Sanitary Sewer System Improvement Project

RGA evaluated videos for sanitary sewer, made assessments on pipe condition, and provided a Capital Improvements Plan that recommends both cured-in-place point repair and cured-in place lining of portions of the system along with excavated repairs in some areas. RGA provided bid documents for the design of 11 point repairs with 8” PVC (Approximately 600 LF); 2 manhole locates/raisings; approximately 4750 LF of 8” Cured-in-place liner with service reconnections; 6 Manhole modifications; 24 manhole linings; 19 protruding tap removals; concrete repair and asphalt patch paving. 

Parker Water and Sanitation District, Parker, Colorado
20 Mile Road Raw Water and Reclaimed Water Lines Phase I, II and III

The RGA team provided design, construction management, observation, and administration for reclaimed water and raw waterlines consisting of 23,000 LF of 16-inch pipe, 3,000 LF of 24-inch pipe and 2,000 LF of 12-inch pipe.  This series of projects also included 11,600 LF of dual 16-inch PVC effluent and 5,500 LF of 24-inch, 16-inch and 12-inch PVC raw water lines, including 600 LF of 54-inch diameter tunneling and casing under existing streets. 

Parker Water and Sanitation District, Parker, Colorado
​Cherry Creek Diversion Dam

​The RGA team provided the design, permitting, construction management, and inspection for a 300-foot inflatable diversion dam to redirect raw water into a pump station to provide water to the Reuter-Hess Reservoir.  Construction consisted of subgrade improvements by vibratory installed stone columns, sheet piles, a concrete apron for the inflatable dam, a system of 20-foot retaining and wing walls, a bypass sluice area, grouted rip rap armor, and site restoration in compliance with the US Army Corps of Engineers.

Parker Water and Sanitation District, Parker, Colorado
Clarke Farms Lift Station

RGA staff provided inspection and contract administration for this 3,000 GPM lift station with the ability to serve 1,400 homes.  

Westridge Sanitation District, Jefferson County, Colorado 
Sanitary Sewer Management

​RGA is designing, maintaining and inspecting repairs to the district’s sewer system. This work includes bidding and contracting firms to perform the videos, reviewing videos, making assessments and prioritizing the replacement of lines, providing reports to the district, producing design plans and contract documents, advertising, bidding and construction management inspection of these projects every year.