Category Archives: Infrastructure

“Quality of Life” improves with Downtown Fenton Streetscape project

Fenton, Michigan

G2 Consulting Group was part of the construction team that earned two industry awards for its work on the Downtown Fenton Streetscape project. Downtown Fenton wanted to retain its historical charm while offering modern shopping, dining and lifestyle experiences. The city sought to improve portions of its streetscape along South Leroy Street and make significant enhancements to the downtown area, including work on the water mains, sanitary and storm sewers, roadway pavement and sidewalks that are now ADA compliant. As a result, there is an improved quality of life for residents and visitors to Fenton.

G2 was recognized by the American Society of Civil Engineers Southeast Michigan with the “James F. Biskey, P.E. Quality of Life Project of the Year” in 2017. The Michigan Concrete Association recognized the team in its “Municipal Flatwork” category.

Fast Facts

Project Owner

City of Fenton

Project Scope

Significant improvements to streetscape and road reconstruction including water mains, sanitary and storm sewers, roadway pavement and sidewalks.

Services Provided

Geotechnical Engineering
Construction Materials Evaluations and Testing

Challenges / Solutions

Working in a downtown environment requires coordinating with city officials and contractors to maximize safety and work efficiently.

G2 encountered challenging soil conditions during the road reconstruction project and worked with OHM Advisors and Eastlund Concrete Construction to ensure the City of Fenton’s geotechnical engineering requirements were met during the design phase. G2 worked closely with Champagne & Marx, general contractor, to monitor construction quality while maintaining the overall project schedule.

Smart. Results. Fast.

G2 developed an economical solution to challenging soil conditions and performed construction testing to meet City requirements while maintaining the overall project schedule.

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Evergreen Road Gets a Makeover

It’s Orange Barrel season again in Michigan. Like most municipalities, the City of Southfield, MI, got to work reconstructing its main roads. Its a tight timeline to get it all done before winter hits, however, G2 Consulting Group prides itself  in Smart. Results. Fast.

In 2017, G2 Consulting Group provided materials testing services for the concrete reconstruction of Evergreen Road from 9 Mile Road to the Northwestern Highway Service Drive.  Florence Cement Company, working as a subcontractor for Dan’s Excavating, Inc., placed approximately 8,000 cubic yards of grade P1 Modified concrete as pavement with integral curb for the project.  Services were provided for OHM Advisors and the City of Southfield.

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Dam Rehabilitation

G2 Consulting Group assisted in the rehabilitation of two very different dam facilities with a similar need:  they were constructed decades ago – one over a century ago – and time has taken its toll. Both facilities required attention to maintain their integrity.

Moores Park Dam, Lansing MI

Moores Park Dam was constructed in 1904 and is owned by Lansing Board Of Water and Light. Located on the Grand River, Moores Park Dam is used for hydroelectric power and recreation, among other things.

G2 assisted Stantec Consulting Michigan and the Lansing Board of Water and Light in the rehabilitation of Moores Park Dam. Stantec determined that portions of concrete in the dam needed to be replaced, but continue to function during repairs. G2 designed a system to create dry conditions to facilitate concrete repair. This system included steel sheet pile cofferdams with water tight connections on the upstream side of the dam, and portable dams for the downstream side. G2 provided critical interface with the contractor as means and methods were developed.

Washago Pond Dam, Wayne County MI

Constructed in 1979 and owned by Huron-Clinton Metro Authority, Washago Pond Dam is an earthen, gravity dam. Eleven feet high and 200 feet long, the dam created Washago Pond from the Reagan Drain River.

G2 assisted Applied Science Inc. and the Huron-Clinton Metropolitan Authority  in the rehabilitation of Washago Dam. The outlet culvert showed signs of distress, and G2 performed investigations to evaluate the condition of the earthen embankment, the culvert, and the headwall next to the culvert. These investigations point to hydrogeological problems:  water appeared to be flowing around the outside of the outlet, causing erosion. G2 currently developed geotechnical recommendations for repair and stabilization.

Smart. Results. Fast. G2 is providing geotechnical expertise to facilitate rehabilitation of this critical infrastructure without impacting operations.

I-94 & I-69 Interchange Reconstruction

Port Huron Township, St. Clair County, Michigan


The Michigan Department of Transportation reconstructed 3.7 miles of the I-94/I-69 interchange in Port Huron Township, St. Clair County, replacing bridges and reconstructing ramps. G2 Consulting Group and Toebe Construction teamed up to complete this $76 million project, maximizing construction efficiency and minimizing construction cost – while protecting nearby residences.

Fast Facts

Project Owner

Michigan Department of Transportation

Scope

3.7 miles of interstate, replacing bridges and reconstructing ramps

G2 Services Provided

Geotechnical engineering
Remote instrumentation monitoring settlement and vibration
Value engineering

Challenges/Solutions

      • The construction schedule was contingent on embankment soils settling. The team installed 12 vibrating wire piezometers to monitor pore water pressure changes as the embankments were constructed. In addition, a new innovative settlement cell system was used to monitor actual settlement of embankment soils to signal when bridge construction could proceed. This approach shortened the specified six-month waiting period by one month.
      •  Project budget was tight. Prior to starting, G2 recommended Elastizell as a more cost effective light weight fill in place of the polystyrene block that was proposed in the design, simplifying installation and reducing material costs. G2 also worked with Toebe Construction to optimize equipment efficiency and reduce construction costs, particularly during installation of piles, using static load tests and PDA testing to confirm design capacities for the piles.
      • Nearby residential structures were protected by specifying the maximum vibration levels allowed during construction. G2 then implemented remote vibration units to monitor vibration continually – without needing a field engineer on site – providing critical data while minimizing costs.

Smart. Results. Fast. G2 provided geotechnical solutions to protect  nearby residences and provide adequate support for the roadway and embankments, while shortening the project schedule and reducing costs.

Kelly Road Reconstruction

Eastpointe, Michigan

Improving Michigan Roads! The City of Eastpointe and Anderson, Eckstein and Westrick, Inc. teamed to reconstruct a deteriorated section of Kelly Road from Toepher Rd. to 9 Mile. G2 provided geotechnical engineering services, construction materials evaluation and testing, and of course a drone fly-by!

Fast Facts

Project Owner

City of Eastpointe

Scope

Reconstruction of Kelly Road

G2 Services Provided

Geotechnical engineering
Construction materials evaluation and testing

Smart. Results. Fast. G2 maintained an aggressive paving schedule to minimize disruption to adjacent businesses and the motoring public.

Earth Retention Systems for I 96 Reconstruction

Wayne County, Michigan

MDOT undertook a massive, $180 million, I-96 Reconstruction Project which spanned a seven-mile stretch from Newburgh to Telegraph Roads and included redevelopment of 37 bridges, overpasses and their respective on/off ramps. The project was completed in 167 days (October 2014) – one of the most compressed timelines ever accomplished for a project of its scope. Running beneath and adjacent to I-96 is a network of civic infrastructure, most notably a critical, 48-inch diameter Detroit Water and Sewerage Department water supply pipeline that could not be compromised.

Fast Facts

Project Owner

Michigan Department of Transportation

Scope

Provided geotechnical design and construction consulting for 11 temporary and permanent earth retention systems for highway and bridge reconstruction

G2 Services Provided

Geotechnical Design and Construction Engineering

Challenges/Solutions

    • The 180 day schedule hinged on expediting every aspect of the construction process. G2 collaborated closely with the road and bridge contractors in the design of the earth retention systems to facilitate ultra-efficient construction while maintaining site safety. Often when a problem was identified in the field during the day, the engineering team came up with a solution that night to keep progress moving the next day.
    • Where the excavation zone of influence enveloped the 48-inch water line, structural elements were identified as critical, and the design team specified “zero movement.” Here, Nicholson Construction’s pressure grouted anchoring system was installed as close as safely possible to the utility bottom.   Where the water main was outside the critical area, open cut techniques were used to reduce sheeting, reducing material costs and schedule significantly.   The team implemented pre-developed contingency plans twice to stabilize sloughing slopes in this critical area.
    • Over 800,000 cubic yards of fill resulted from the widening of I96.  G2 contributed to the team’s implementation of logistical and technological best practices to move this volume of material without jeopardizing existing underground infrastructure.

Smart. Results. Fast. G2 Consulting Group engineered earth retention systems that safeguarded underground infrastructure during excavation and reconstruction while minimizing construction materials, which reduced cost and minimized the construction time.

Ambassador Bridge Gateway

Detroit, Michigan

 

 

 

MDOT’s I-75 Ambassador Bridge Gateway Project is a $230 million infrastructure investment to take 10,000 trucks off local streets, bring international visitors to the door of the Detroit Mexicantown International Welcome Center, relieve congestion, increase safety, and improve travel on I-75 and I-96 freeways. The Ambassador Bridge is the No.1 international border crossing in North America.  Work originally began on the project in 2004, but stalled. When the time came to complete work, MDOT retained a design/build team to execute quickly, under the spotlight of a highly politicized environment.

Fast Facts

Project Owner

Michigan Department of Transportation

Scope

$9.3 million design/build project, completing stalled Gateway project

G2 Services Provided

Geotechnical Design and Construction Assistance
Concrete and Soils Quality Control (QC) Testing Services for the team

Challenges/Solutions

  • The project was highly contentious.  Formerly handled by the Detroit International Bridge Company (DIBC), Gateway was ceded to MDOT per the Wayne County Circuit Court and ordered DBIC to fund remaining construction through a $16 Million escrow account.
  • Work was extremely fast-paced , and under the spotlight of a highly politicized environment.
  •  Close collaboration with Client during bid process allowed G2 to mobilize and begin geotechnical studies on the day Notice-to-Proceed was provided from MDOT to the Design Team.
  • G2 provided remote-monitoring to analyze vibration data during construction and immediate response to ‘Alarm Events’.  Recommendations quickly followed to modify construction techniques to minimize impact on nearby adjacent structures.
  • G2 provided continuous evaluation and monitoring of aggregate material stockpiles of varying gradations, allowing for real-time adjustments so that concrete materials were produced  within specifications.
  • G2 maintained strict control and curing of concrete test specimens and daily delivery of Pay Item Test Cylinders to off-site MDOT laboratory for Quality Assurance Evaluation.

Smart. Results. Fast. G2 provided real-time geotechnical support throughout design, which continued even as construction began, and  delivered expedited QC testing on soils and concrete for the entire team.  Mission accomplished.

I‐94 and Sargent Road Interchange

Leoni Township, Michigan

 

 

The I-94 and Sargent Road Interchange is a key transportation route for this area – especially when Michigan International Speedway is holding a race or the University of Michigan is hosting a football game. When MDOT began considering a major reconstruction of this area, the team understood careful planning would be required to keep traffic flowing.  What was not so apparent was how subsurface conditions would increase project complexity.

Fast Facts

Project Owner

Michigan Department of Transportation

Project Scope

Replacement of the Sargent Road Bridge over I-94, replacement and/or realignment of the ramps to and from I-94, and realignment of 3,200 feet of Sargent Road

Services Provided

Geotechnical Engineering, Design and Construction Assistance

Challenges/Solutions

  • The realigned segment of Sargent Road and portions of the realigned ramps (with embankments up to 24 feet high) were to be constructed through significant wetland areas with up to 6 feet of peat, muck and organic silt at the surface, underlain by up to 39 feet of loose granular soils.  Construction could not proceed without treating these soils.
  • G2 performed extensive engineering analyses to identify methods to accelerate and monitor embankment settlement while maintaining stability. The soft and organic soils were too deep and widespread to be cost effectively removed by conventional undercutting or rolling surcharge methods.
  • G2 developed a staged embankment construction plan incorporating a drainage/stabilization blanket and wick drains to accelerate consolidation of the compressible soils. Instrumentation systems were installed to record how much settlement was occurring during embankment construction to avoid causing slope instability by overstressing the underlying weak soils.
  • G2 recommended additional surcharge fill over the embankment fill to further accelerate settlement and over-consolidate the soils to facilitate earlier construction. G2 prepared all the Special Provisions related to subgrade undercutting embankment and surcharge construction, wick drain installation and geotechnical instrumentation.

Smart. Results. Fast. Embankments were constructed in less than 3 months, enabling the remainder of construction to proceed on schedule with minimal disruption to I-94