I-277 Pedestrian Rail Trail

I-277 Pedestrian Rail Trail

The Rail Trail Pedestrian Bridge provides a critical pedestrian crossing that will connect the Charlotte City Center to the South End neighborhood. The bridge will connect over 40 miles of bikeways into the city center, expanding the current 2,700 daily trips along the Rail Trial. The width of the bridge will be the widest part of the Rail Trial and have double arches that reach 40 feet in height. 

UES provided a 2D Subsurface Utility Map (SUM) and Utility Engineering (SUE) of the proposed construction of the new I-277 Pedestrian Rail Trail in Charlotte, NC in order to account for several design changes. The SUM model followed general accordance with ASCE 38-22 and utilized several geophysical techniques including GPR, RF, TDEM, and FDEM.

CLIENT

Thomas and Hutton

LOCATION

Charlotte, NC

SERVICES PROVIDED

Geophysical Technologies

Graves Road Interchange Design-Build

Graves Road Interchange Design-Build

This project included the drilling of 148 borings to support the design-build project for the relocation of 2.3 miles of Graves Road, the widening of 2.2 miles of I-275, and the construction of a number of new structures including an interchange and bridge for Graves Road and I-275. 

The project included an expedited drill schedule and the utilization of multiple drill rigs. Borings were completed on I-275; on Graves Road; and on residential, farm, and commercial properties. Geotechnology coordinated utility locating with multiple agencies, obtained all property access permissions, provided drill rig access in wooded and sloping terrain with our own equipment and operators, and completed all restoration. The drilling included disturbed and undisturbed soil sampling as well as rock coring. All borings were completed in less than 2 months (October and November 2019), which allowed the project to remain on schedule. Geotechnology also quickly mobilized a drill rig to the site complete additional borings after a significant design change. All drilling was completed in general accordance with the KYTC
Geotechnical Guidance Manual. 

CLIENT

Palmer Engineering Company

LOCATION

Boone County, Kentucky

SERVICES PROVIDED

Geotechnical Engineering
Materials Testing

Columbia Parkway Landslide Stabilization

Columbia Parkway Landslide Stabilization

Seasonal hillside instability has been a recurring problem along Columbia Parkway for decades in the form of abrupt landslides and gradual downslope movement of colluvium (soil creep). Following a series of significant landslides in multiple locations along the uphill side of the parkway, the City of Cincinnati in 2019 sought a long-term stabilization plan for 9 areas along Columbia Parkway.

Geotechnology, a UES Company, completed explorations involving borings and/or test pits on the steep terrain for evaluating the subsurface conditions for the slope stabilization designs. After evaluating the geologic conditions of the areas, Geotechnology recommended two types of stabilization mechanisms for the project: soldier pile and lagging (SPL) walls, and soil nails with steel mesh. The selection of the stabilization mechanism was based on the geometry of the ground surface and the subsurface conditions.

  • The SPL walls were used along approximately 1,500 feet of hillside parallel to Columbia Parkway near the toe of the slope.
  • The soil nail stabilization mechanism was applied to approximately 4,000 feet of slope paralleling the highway and generally extended 50 feet upslope of the lower row of soil nails.

Geotechnology prepared design plans for both the SPL walls and soil nail stabilization mechanisms. Catchments areas were included in the designs to allow material that overtops the SPL walls or soil nail stabilization areas to accumulate in the catchment areas, allowing the City to remove the materials at more opportune times when traffic demands on the parkway are less.

Geotechnology’s services included: drilling services, geotechnical laboratory testing services, and engineering design services for slope stabilization measures (soldier pile and lagging walls and soil nail stabilizations).

CLIENT

Beaver Excavating Company

LOCATION

Cincinnati, Ohio

SERVICES PROVIDED

Geotechnical Engineering

TDOT I-30/I-240 Interchange, Phase II

TDOT I-40/I-240 Interchange, Phase II

Geotechnology, a UES Company, worked on Phase II of the I-40 and I-240 Interchange which included the construction of a four-level interchange that improved traffic flow for east and westbound traffic. The additional ramps help with traffic congestion and improve safety on the interchange and help alleviate congestion for the surrounding routes as well.

Several of the retaining walls had to be seismically designed. To do this, Geotechnology recommended the use of geofoam as backfill behind one of the walls to reduce the seismic lateral pressure, and performed a post-pile driving liquefaction assessment using Cone Penetration Testing to see the improvement in soil liquefaction resistance due to pile driving causing soil densification.

Geotechnology’s services included:

  • Geotechnical subsurface exploration
  • Site specific seismic studies
  • Deep foundation recommendations
  • Pavement recommendations
  • Site preparation recommendations
  • Stability analysis of slopes
  • Design of reinforced earth (bridge abutment) slopes to meet the seismic requirement
  • Mechanically stabilized earth (MSE) wall analysis and recommendations. A total of 23 walls are included in this project

Geotechnology, a UES Company, also handled the Construction Engineering and Inspection (CEI) duties during construction. Services included:

  • Performing retaining wall design review
  • Dynamic testing of deep foundations
  • Providing geotechnical support during construction
  • Performing various construction-related laboratory tests
  • Attending weekly meetings and performing general geotechnical-related duties

CLIENT

LOCATION

Shelby County, Memphis, Tennessee

SERVICES PROVIDED

Materials Testing

Geotechnical Engineering

I-395/SR 836/I-95 Project (Signature Bridge)

I-395/sr 836/i-95 design build project (signature bridge)

The I-395/SR 836/I-95 Project is a collaboration between the Florida Department of Transportation (FDOT) and the Greater Miami Expressway Agency (GMX). The construction work is limited to State Road (SR) 836, starting from NW 17 Avenue, continuing through the SR 836/I-395/I-95 (Midtown) Interchange, and ending at the MacArthur Causeway Bridge. The work on I-95 spans from NW 8 Street to NW 29 Street. The project is expected to be completed in late 2027 at a cost of $840 million.

The Signature Bridge is the main focus of the project. It will transform the city’s skyline and become an iconic symbol for Miami and South Florida. The Signature Bridge and the adjoining structures will create vibrant community spaces underneath, linked together by a contiguous trail for the enjoyment of Overtown residents, nearby communities, and visitors.

UES partnered with the Archer Western – de Moya Joint Venture team for the design-build. For the design portion of the project, UES performed the geotechnical exploration, testing, engineering analysis, and recommendations, which included 19 bridges for segment 836, 20 bridges for segment 395, 2 bridges for segment 95, retaining walls, miscellaneous structures, roadways, and ponds. Some bridges were designed using driven concrete piles, while others used augered cast-in-place (ACIP) piles.

The utilization of ACIP piles in bridges is a new development in the field of FDOT construction. UES, in collaboration with FDOT, played a significant role in making this idea a reality by contributing to the design and construction of the first-ever FDOT bridge of this magniyude that uses ACIP piles. This project marks a milestone in the history of FDOT and sets a new standard in the construction industry.

For the construction portion of the project, UES’s scope included supplying the management scope for contractor quality control and pile testing, which provides engineering, clerical, and quality control manager services. These services include maintaining the quality control plan, job guide schedule, contractor density log book, and MAC test reporting. The pile driving inspector includes Construction Training Qualification Program (CTQP) certified technicians for inspections and monitoring of all test piles and production piles.

CLIENT

LOCATION

Miami, Florida

SERVICES PROVIDED

Geotechnical Engineering

Field & Code Compliance

 

Spartan Electronics Waste Water Treatment Plant Monitoring Well Install

Spartan Electronics Waste Water Treatment Plant Monitoring Well Install

UES was retained by Engineering Solutions International to conduct a subsurface study at a manufacturing facility in eastern Florida. The services provided were in conjunction with the installation of a new wastewater treatment plant (WWTP) for the facility. The scope of the project was to determine a groundwater flow direction beneath the subject property and installation of a permanent groundwater monitoring system. UES approached the project in two phases.

The first phase of the project included the installation of three groundwater piezometers in a triangular fashion around the WWTP in order to collect groundwater elevation data. Once completed, the groundwater elevation data was used to calculate the groundwater flow direction beneath the subject property. Phase Two of the project included the installation of a permanent monitoring well in the downgradient groundwater flow direction of the WWTP.

The permanent monitoring well will be used for future groundwater sampling events to evaluate the operation of the WWTP. UES employed our internal Sonic drilling equipment for this project in order to obtain a complete understanding of the subsurface geology and groundwater table beneath the subject property and to accurately place the piezometer and permanent monitoring well locations based upon site-specific characteristics.

CLIENT

Engineering Solutions International

LOCATION

DeLeon Springs, FL

SERVICES PROVIDED

Geotechnical Engineering

Environmental Consulting

Wood River Deep Cut Off Wall Seepage Improvements

Wood River Deep Cut Off Wall Seepage Improvements

The project consists of improvements to the Wood River Levee system. The improvements are along the Lower Wood River Levee system between the intersection of L-143 / Enviroway and IL-143 / Wood River Creek, in East Alton, Illinois. GFA International has performed quality control (QC) testing of the Deep Cut Off Wall’s Self-Hardening Slurry (SHS). The deep Cut Off Wall with permeability of not less than 1 x 10-6 extending to depths of upwards of 140 feet and 2,000 linear feet in length into the existing embankment with total thickness of 24 inches.

  • Provide soils and geotechnical engineering technicians to ensure compliance with geotechnical engineering details.
  • Mix design testing of proposed SHS for constant head permeability and unconfined compressive strength of controlled low strength material.
  • Pre-placement sampling and testing of the SHS for constant head permeability (permeability range of (1×10-6 to 9×10-9) and compressive strength. Over 6,000 pre-placement samples were cast.
  • Constructed on site testing laboratory and curing facilities and achieve US Army Corp of Engineers validation prior to start of seepage barrier.
  • To achieve the number of test samples an on-site testing laboratory was constructed with 20 constant head permeability test chambers and two 40-foot-long containers outfitted as curing room for samples.
  • Post placement testing of SBBM for permeability and compressive strength with samples collected from verification borings.
  • Verification HQ core borings with 95% recovery rate, over 600 lineal feet of verification core borings were performed on cut off wall material.
  • Post placement testing of SHS for hydraulic permeability and unconfined compressive strength from samples collected from verification borings.

CLIENT

Treviicos South

LOCATION

Madison County, Illinois

SERVICES PROVIDED

Geotechnical Engineering

Materials Testing

Field & Code Compliance

North Texas Municipal Water District Lower Bois d’Arc Lake Program

North Texas Municipal Water District Lower Bois d’Arc Lake Program

The Bois d’Arc Lake will span 16,641 acres, be two miles long, 90-feet tall, with an intake tower that stands at 110-feet tall upon completion. It will collect water and filters through the Raw Water Pipeline to the Leonard Water Treatment Plant (WTP). The 90-inch diameter Raw Water Pipeline will travel 35 miles from the dam, delivering untreated water to the treatment plant. The Leonard WTP will include six pumps to filter and treat 90 MGD of water then go through the Treated Water Pipeline.

Alpha Testing, a UES company is currently serving multiple elements of NTWMD’s Bois d’Arc Lake Program, providing quality control and construction materials testing services to multiple project teams.

CLIENT

Archer Western and Garney Companies, Inc. 

LOCATION

Fannin County, TX

SERVICES PROVIDED

Materials Testing

Field & Code Compliance

TDOT MemFix 4-I-240 CMGC

TDOT MemFix 4 - I-240 CMGC

Interstate I-240 contains three to four lanes in each direction. It was planned to have four lanes in each direction as part of the recently completed widening project. The widening project was designed to include a collector distributer (CD) road within the Poplar Avenue interchange. The CD road was completed under both the Poplar Avenue bridges, but not under the Norfolk Southern (NS) railroad and the Park Avenue bridges due to existing field conditions. Also, it was discovered during the construction of the I-240 widening that the abutment piles were not driven to the planned depth. The bridge structures did not meet the current AASHTO seismic requirements. All bridge bents are supported on shallow foundation and do not meet the current design requirements either.

The purpose of the project was to provide eight lanes for the I-240 mainline by completing the widening, and improving the vertical and horizontal clearance along I-240 at the bridge crossings to meet current design standards. This required a full replacement of the Poplar Avenue and NS bridges and rehabilitation of the Park Avenue Bridge. Roadway modifications are expected. The work also impacted the recently constructed retaining walls under these bridges and other facilities that are considered part of the Poplar Avenue interchange.

Geotechnology, a UES Company’s services included:

  • A subsurface exploration to obtain the soil information required for bridge foundation and retaining wall analyses
  • A site-specific seismic study to provide site-specific response spectra to be used for seismic design and analysis of the bridges and other facilities
  • A geotechnical design / analysis of new and existing elements
  • Geotechnical support to the engineering team during the design phase
  • Engineer support during construction, which started December 2017 including asphalt plant testing and inspection
  • Construction engineering inspection (CEI) and materials testing during construction

CLIENT

LOCATION

Memphis, Tennessee

SERVICES PROVIDED

Geotechnical Engineering

Materials Testing

Howard Frankland Bridge Replacement

Howard frankland bridge replacement

UES has been involved in the construction of the new Howard Frankland Bridge, offering a range of crucial services for the project. These services include drilling, geotechnical engineering, materials testing, and pile driving monitoring. UES has dedicated over a year to providing drilling services, which have been conducted on five barges in the Tampa Bay area.

CLIENT

Archer Western Construction

LOCATION

Hillsborough & Pinellas County, Florida

SERVICES PROVIDED

Geotechnical Engineering

Materials Testing

Pile Driving Monitoring