ROUTE 109 TRAFFIC SIGNAL, ITS, AND PEDESTRIAN IMPROVEMENTS

EUREKA, MO

ADMINISTRATION BUILDING AND MAINTENANCE FACILITY IMPROVEMENTS

O’FALLON, ILL The parking lots for the Township Administration Building and Maintenance Facility were in poor condition. The scope of the project included Topographic Survey, Pavement Assessment, Pavement Design, Stormwater Design, reconfiguration of entrances to and from the facilities, ADA improvements, and general site/civil reconfiguration of existing facilities. More specifically, as part of the improvements to the site, Gonzalez proposed extending the pavement limits to the edge of pavement of a potential future connection near the salt storage dome. The entrance of the potential future connection was determined from modeling turning movements of a tractor trailer entering and exiting the site. The new garage building is a metal building approximately 42’ x 100’ with a steel frame and concrete floor. It is a pre-engineered building, it has a new panelboard fed from the existing electrical panel within the existing building on the township site. The building has underground power feed to it and fuel canopy lighting from the existing building panelboard. The new garage building includes a floor drainage system with floor drains, one per bay, connected to an oil interceptor. From topographic data gathered from the garage and maintenance yard, stormwater was directed to an enlarged detention basin on the site. Other Site/Civil improvements consisted of new storage bins, sanitary sewer improvements, new fencing, and new lighting.

O'FALLON TOWNSHIP RESURFACING

O’FALLON ILL Gonzalez Companies provided O’Fallon Township a Pavement Assessment and identified approximately 15.5 miles of roadway for improvement since 2014. The evaluation of pavement conditions assisted the Township in prioritizing these resurfacing projects.  Gonzalez Companies prepared contract documents related to the project, including construction drawings, technical specifications, and design documents. These improvements have included surface removal,  hot-mix asphalt overlay, driveway reconstruction, wedge shoulders, turf shoulder, and traffic control.  Gonzalez Companies also recommended the use of a “safety edge” to improve safety along the rural roadways, which will aid in driver recovery during run-off occurrences. Gonzalez Provided:

• Design Services

• Bidding Services

• Construction Observation

CENTENNIAL GREENWAY

ST. LOUIS, MO The Centennial Greenway Improvement Project is located at the intersection of Delmar and Interstate 170 in Saint Louis, Missouri. Great Rivers Greenway had a desire for improvements to be made to this intersection during the summer of 2018. Gonzalez was retained to provide construction observation and resident project representative (RPR) services for the project. Gonzalez Companies was also retained to manage and conduct the coordination of the material inspection, shop drawing review, change orders and tracking costs for the project as the representative for GRG through its completion.

The project consisted of:

• Roadway improvements

• Mill and overlay

• Concrete Curb Removal and Replacement

• Maintenance of Traffic

• Traffic Control

• Erosion control

• Signalization

• Landscaping

• Wayfinding

• Temporary and Final Striping

UMSL PARKING LOT E/F AND GROBMAN ROAD IMPROVEMENTS

ST LOUIS, MO In March of 2018 Gonzalez Companies entered into an agreement with UMSL to conduct a pavement analysis, complete field measurements and prepare bid documents for a parking lot adjacent to the Millenium Student Center, Parking Lot E.  This parking lot consisted of approximately 145,000 s.f. of pavement that was severely deteriorated with severe cracking and potholes.  It was the intention of the University to have this parking lot patched and overlaid.  Gonzalez performed a field assessment of the existing conditions of Parking Lot E, as well as obtaining elevations in the parking lot to determine if there were areas of susceptible for water ponding. During this analysis it was determined that water ponding was an issue and that certain sections of the pavement were showing excessive distress, so widespread and severe, that these areas were recommended for full depth replacement.

Gonzalez met with UMSL staff to discuss the preliminary findings of their field assessment and proposal for full depth replacement. UMSL staff concurred with Gonzalez’ findings, and based on Gonzalez ‘s recommendations, UMSL was eager to expand the project. In May of 2018 UMSL added two more areas of work to the project, again seeking Gonzalez’s recommendations.  Parking Lot F, adjacent to the campus Metrolink station, which is approximately 34,000 s.f., as well as a 1,200 ft. section of Grobman Road, which is one of the main entrances into the campus.

After execution of the agreements with Gonzalez to complete the new areas of work in May 2018 UMSL staff proposed an accelerated schedule to complete design, bid the project and complete construction on all three phases prior to the new school year beginning in August of 2018.  Even with the intensified schedule Gonzalez was able to produce plans, specifications and bidding documents, as well as manage construction for the project, which included:

• +101,000 square feet of Pavement Removal/Patching

• +5,000 Tons of Aggregate Base Course

• +3,100 Tons of Asphalt Paving

• 20,000 Lineal Feet of Pavement Marking

UMSL was pleased to have all portions of the project including final inspection and punch list items by August 2018, just three months after execution of the agreement obtaining Gonzalez for the engineering services.

MSD MISSISSIPPI FLOODWALL ORS PUMP STATION REHAB DESIGN BUILD

ST. LOUIS, MO The Mississippi Floodwall ORS Pump Station Rehabilitation Project consists of rehabilitation work for the Baden Pump Station, Harlem Emergency Closure Structure, and Mill Creek Pump Station, which is designed to provide system rehabilitation to accommodate a 100 year desired lifecycle while maintaining current operational function.

The project featured removal and replacement of roller gates and appurtenances at the Baden and Mill Creek locations. Roller gate replacements include a provision for water diversion within the structure, structure, actuator refurbishment, new stainless gates, rails, seals and assemblies, as well as structure modifications to accommodate the replacement. Roller gate replacement will occur sequentially to allow no more than one (1) gate to be out of service at a time per location. Emergency plans for stop log installation were created to ensure the integrity of the pump station system in the event of higher than normal river levels during these months. Slide gate rehabilitation are exclusive to the Harlem Emergency Closure Structure. These gates require actuator refurbishment at two locations, as well as seals, blocks, alignment and other modifications at all four gates. In addition, concrete and stop log slides were also rehabilitated at this site. The refurbishment of the Harlem slide gates included the extraction of existing gates to allow access for seal replacements and adjustments. River and stormwater diversion for the concrete and stop log work will be required at the Harlem location along with an emergency action plan for irregular river water levels.

Access to Shutter Gates and upper chamber will be enhanced by the installation of larger opening at the actuator slab elevations. These openings within the existing structural slab were cut between existing beams and dressed with new steel closures, grating and permanent handrail. The new opening will allow MSD for eased future access for maintenance and modifications. Roller Gates within the lower well will require a water diversion system to accommodate fluctuation in river levels. Diversion systems included structural panels that mount to adjacent existing structure with the ability to provide dry working conditions up to RS20 at Baden and RS16 at Millcreek. Work within the diversion structure included the rehabilitation of existing stop log channels, removal and reinstallation of gate rails, and concrete remediation. Hydraulic actuators from the Baden Pump Station and Harlem Closure Structure required refurbishment from the original manufacturer.

PERUQUE CREEK GRAVITY SEWER

OFALLON, MO Gonzalez Cos. designed a 6,000-ft long sanitary interceptor for the City of O’Fallon, Missouri. The 30-inch gravity sewer receives pumped sewage from Public Water Supply District No. 2 of St. Charles County (PWSD2) and discharges to an existing City sewer at Peruque Creek.

The need for a new sewer was determined through Gonzalez’ planning studies and hydraulic analysis of an existing lift station and interceptor sewer. The studies considered dry and wet weather capacity, sewerage demand from anticipated land development, and projected flows from PWSD2. After evaluating alternative sewer alignments, Gonzalez prepared complete bid documents, including alternate bid items for conventional and trenchless construction methods. Working with subconsultants, Gonzalez furnished surveys, soils investigations, Section 404 and Missouri DNR permitting, and easement documents. Submittal reviews and consultation were provided during construction.

Excavation depths ranged up to 22 feet, with a varying rock profile and areas of poor surface drainage. A key issue was the maintenance of tractor-trailer access and the restoration of heavy concrete pavement in an industrial area. The alignment crosses sensitive residential yards, forested bottomland, and a rocky hillside. A vortex structure and several drop bowl inserts were provided for odor control and turbulence reduction. Other design features include streambank restoration, wetland plantings, vibration monitoring, and a 67-ft jack and bore. Construction was completed in late 2020 at an approximate cost of $2.5 million.

I-294 RETAINING WALL CONSTRUCTION, GRADING, AND SHOULDER REHABILITATION

COOK COUNTY, ILLINOIS This project was concerned with the roadway rehabilitation and widening, grading, and shoulder rehabilitation along the Central Tri-State Tollway (I-294) from Mile Post 31.5 to Mile Post 34.9.

Work scope consisted of performing roadway rehabilitation, grading, temporary and permanent retaining walls or retention systems to allow for the relocation of thirty-five ComEd transmission line towers along the I-294 corridor in order to add additional capacity to the Tollway.

Roadway rehabilitation included northbound and southbound median and outside shoulders in order to allow for median crossovers be constructed to facilitate with the future mainline construction.

Temporary soil retention systems were utilized at eight of the 35 total locations, and three locations implemented permanent retaining walls. The project also included the grading of each new tower location to facilitate the installation of the new foundations and transmission towers.

The project included close coordination with multiple corridor stakeholders, including the Village of Berkeley where tree pruning and removal was performed. Borrow excavation was removed from a private landowner to construct embankment for the I-490 and I-294 interchange. Coordination between the Elgin O’Hare Corridor Manager, ComEd, IDOT, as well as Cook County as also necessary for successful delivery.

Gonzalez also performed construction management services including on-site inspection; review layout of contract including design changes; provided geotechnical inspection and testing; prepared records; maintain documentation, submitted pay estimates and change orders and any other duties requiring the services of an engineer to complete this project on a timely basis and in accordance with Tollway specifications.

I-94 KENNEDY EXPRESSWAY AT MONTROSE AVENUE

COOK COUNTY, ILLINOIS Gonzalez Companies was chosen by the Illinois Department of Transportation under PTB 192 item 6. Gonzalez is currently providing Phase III Construction Management services for the rehabilitation of the Montrose Avenue bridge. Montrose Avenue carries traffic and pedestrians over the inbound and outbound Kennedy locals, reversible lanes, Edens Expressway and the CTA Blue Line railway.

Work included replacement of the existing 3 span, cast-in-place, post-tensioned concrete tee beams and deck with cast-in-place concrete deck and steel beam girders. Due to the existing structures dilapidated condition and the Expressway’s reduced ADT due to the Covid-19 pandemic Gonzalez worked closely with IDOT to develop traffic staging and revised demolition procedure to completely close the inbound and outbound lanes for two consecutive weekends allowing the collapse and processing of the old structure. Opening of the Expressway on each weekend was ahead of schedule, and allowed the entire project schedule to be advanced. Partial reconstruction and repairs of the abutment and pier are to be performed to increase the vertical clearance over the Kennedy and Edens Expressway. Complicating the repairs is the complex traffic staging required due to the structures proximity to the “Junction” interchange and reversible lanes. Given the dilapidated, existing conditions of the piers on either side of the CTA station, Gonzalez proposed, based on previous experience with Carbon Fiber Structural repair, to use it instead of the planned substructure repair. This provided a suitable alternative and the structural support necessary for the repair all while keeping the project on schedule.

Improvements to the structure also included bridge and underpass lighting, scupper and drainage system installation, and traffic signal improvements. The new bridge superstructure includes two motorist lanes and one bicycle lane in each direction along with a 10-foot barrier median.

JOLIET MOVEABLE BRIDGES

WILL COUNTY, ILLINOIS Gonzalez was selected to provided construction inspection services for the improvement of movable bridges in the Joliet area and the bridge office building.  This work includes architectural, mechanical, and electrical improvements, along with installation of communications to remotely operate six movable bridges from the newly renovated IDOT Bridge office near the Jackson Street Bridge. The bridges are located at Jackson Street, Cass Street, Jefferson Street, Ruby Street, Brandon Road, and McDonough Street; all of which run over the Des Plaines River. 

Renovations for the two story bridge office included improvements to the architectural, mechanical, and electrical infrastructure.  The building's exterior work included improvements to the existing brick façade, new roofing, improved fire escape, and new windows and doors and special consideration for containment and disposal of lead contaminated paint on the fire escape. The interior was renovated adding three control stations for remote operation of the movable bridges. Mechanical improvements included new HVAC and plumbing.  Electrical work included outfitting the building with upgraded lighting, receptacles, a backup generator to ensure a reliable power source, and a SCADA system for remote operation.

IDOT I-270 WIDENING AND BRIDGE REPLACEMENT PTB 184-23

ST. LOUIS, MO The most northern connection between St. Louis, Missouri and Madison County, Illinois is I-270. This portion of the interstate, from IL 157 to the Missouri state line, is largely a four-lane highway which travels over several railroads, has interchanges with several state routes and is adjacent to urban development, distribution and logistics parks, residential subdivisions, and farm land. This portion of I-270 carries traffic through or near St. Louis, Missouri; and Granite City, Mitchell, Pontoon Beach, and Glen Carbon, IL.

As a direct route to and from St. Louis County into Illinois, I-270 is a common corridor for many motorists who work, live, and/or go to school on opposite sides of the Mississippi River. With population density increasing in St. Louis County and nationwide freight movement expanding through the area, the four-lane highway has seen significant increases in traffic volume and the number of crashes. Current Average Annual Daily Traffic on I-270 is nearly 57,000 vehicles.

Gonzalez is part of multi-disciplinary team tasked conducting preliminary engineering study investigating how to address traffic growth, decrease congestion, and improve safety along the route. Gonzalez was hired as the lead geotechnical engineer of the project. Geotechnical services included development of field investigation for collection of subsurface data from over 70 geotechnical borings and development of geotechnical recommendations for roadway, interchange improvements, and Illinois Route 3 bridge replacement. Gonzalez also performed field inspections, oversaw drilling and laboratory operations, and logged collected samples.

WASHINGTON TERRACE #14 SEWER REPAIR

ST. LOUIS, MO Metropolitan St Louis Sewer District (MSD) constructed approximately 100 lineal feet of 15” diameter combined sewer pipe and appurtenances. The project area is location in the alley near residential property 14 Washington Terrace St. Louis, MO 63012.

Since the project was located in a narrow residential alley with overhead and underground utilities, a third party utility location service provider was used for identifying “safe” location to drill. Gonzalez completed field investigation with a CME-55LC low overhead drill rig using conventional hollow stem auger drilling methods. One 25-foot test boring was drilled to collect data and samples for defining the subsurface profile and development of design parameters. We conducted laboratory tests to determine pertinent engineering and index properties of foundation soils. Tests performed included moisture content, Atterberg limits, and unconsolidated-undrained triaxial compression.

Our engineering analyses focused on observed subsurface conditions, excavation considerations, anticipated subsurface dewatering requirements, lateral earth pressures, and construction concerns. Gonzalez Provided: • Geotechnical Drilling and Laboratory Testing • Geotechnical Data Report • Geotechnical Interpretative Report

BOLM SCHUHKRAFT CONNECTOR TRAIL

COLUMBIA, ILLINOIS This project included the construction of a new 3,100 foot long bike/pedestrian trail connection from the existing Bolm-Schuhkraft trail within in the City park to the end of Monroe Street west of Kaempf Street, as well new curb and gutter, sidewalk and storm sewer along one side of Monroe Street from the end of the bike/pedestrian trail to Main Street. Gonzalez Provided:

• Survey

• Project Development Report

• Preliminary Plans

• Final Plans

• Bidding Assistance

JEFFERSON BARRACKS PHASE 1 COLUMBARIUM

ST LOUIS, MISSOURI The improvements of the Jefferson Barracks Columbarium were overseen by United States Army Corps of Engineers (USACE).  Prior to construction of the columbariums the contractor was required to complete ground improvements to make for stable platform for construction of the improvements.  This required removal and replacement of unsuitable soils, fractured rock and infill of subsurface voids within the karst topography through the use of engineered fill.  Gonzalez was asked to provide the following services: 

• Construction Staking and As Built Surveys

• Preconstruction Phase Plans (Care of Water Plan, Earthwork Plan, Environmental Protection Plan, Stormwater Pollution Prevention Plan, Material Testing Plan)

BELLEVILLE STREETSCAPE CONSTRUCTION

BELLEVILLE, ILLINOIS The City of Belleville needed to make improvements in association with IDOT Contract 97677 for a project known as “West Main Streetscape 6th Street to 12th Street”. The City of Belleville desired to have Gonzalez Companies provide certain professional services necessary to inspect, document and coordinate these improvements throughout construction. The project is being federally funded and administered by IDOT, therefore, full documentation of contract quantities were required, as well as inspection and documentation of all materials there were implemented into the improvements.

The project is located within a highly visible area of town containing numerous stakeholders and business important to the City of Belleville and it is a desire of the The City of Belleville that proactive coordination and communication were provided throughout the various stages of work. Gonzalez provided construction inspection for all phases of work. During the course of the regular inspections Gonzalez assisted the City’s staff in providing documentation of contract quantities as required by IDOT. In addition to the documentation of contract quantities, Gonzalez also assisted the City’s staff in providing daily diary entries, RE Weekly Reports, traffic control inspection reports and SWPPP inspection reports, as well as other documentation required by IDOT during construction.

Gonzalez also assisted the City’s staff in maintaining the quantity book, preparation of pay estimates, as well as authorizations of contract changes for signature by The City of Belleville. Gonzalez assisted the City’s staff in review of shop drawings and material submittals for compliance with IDOT standards and the project specifications, as well as assisting in reporting of materials incorporated into the improvements. Gonzalez attended regular progress meetings, coordination with IDOT, as well as provided coordination with local businesses and City as requested by the The City of Belleville.

PRESIDENTIAL STREET IMPROVEMENTS

OFALLON, ILLINOIS Gonzalez was retained by the City of O’Fallon to provide professional services to make drainage, roadway and sewer improvements to several City streets situated just north of the City square, bounded by State Street on the south, Engle Creek on the west, Smiley Street on the east and Jackson Street on the north, locally recognized as the “Presidential Streets”.

In 2018 Gonzalez Companies completed the fourth phase of the improvements within the Presidential Streets which included more than 5,000 feet of improvements in which Gonzalez provided:

• Topographic and Boundary Surveys

• Drainage Design and Storm Sewer Profiles

• Roadway Plan and Profiles

• Sanitary Sewer Design and Permitting

• Construction Details

• Technical Specifications

• Cost Estimate

After a successful implementation of the Phase IV improvements Gonzalez Companies was again retained by the City of O’Fallon to continue the redevelopment of the next two section of Presidential Streets, Phase V and West Presidential -Phase 1. The next two phases of the Presidential Streets consisted of 5,940 and 5,975 feet, respectively. In addition, to the roadway, drainage, and sewer design work the City of O’Fallon also requested that Gonzalez Companies expand the scope of work to include 2,775 feet of waterline improvements.

In all Gonzalez Companies has provided more than 17,000 feet of roadway and utility improvements for the City of O’Fallon at an approximate construction cost of $3.5 million with additional phases expected.

BISSEL AND LEMAY FLUIDIZED BED INCINERATORS

ST. LOUIS, MISSOURI Gonzalez Companies provided overall program/ project support for the Bissel and Lemay Fluidized Bed Incinerators, which is the largest capital improvement project MSD has ever performed. Gonzalez supported Owner’s Representative team for the following services, administration, general advisory, project management plan, owner’ representative meetings,project controls, chartering workshop for program, preliminary conference, and public relations. Gonzalez also developed a scope of work and survey limits for any topographic and other surveys necessary for 30% design and RFP Documents.

Gonzalez used ASCE 38, “Standard Guideline for the collection and depiction of existing subsurface utility data” as a means to advise the owner on a recommended scope of work and procedure for the identification and mapping of existing utilities, to be carried out by design-builder.

Gonzalez provided surveys and developed basemap/site plan for use by engineer and integrated team to develop Pre-Design Report and Conceptual Documents. Gonzalez also provided pre design and conceptual documents for the following design components: Civil sitework,utility Requirements, and Sitework Design. Gonzalez will continue to provide project management and design assistance throughout all aspects of the project.

TRI STATE TOLLWAY PLAZA

COOK COUNTY, ILLINOIS The scope of the Tri-State Tollway Plazas 36 and 39 Rehabilitation covered bid solicitation; pavement and shoulder widening; removal and replacement of mainline median; removal and replacement of Open Road Toll Plaza 39; construction of toll plaza, gantry and sign foundations and overhead structures; removal and replacement of drainage structures and pipes; removal and replacement of guardrail, barrier wall and attenuators; removal and replacement of lighting; temporary and permanent erosion control devices; pavement marking and signage installation; maintenance of traffic during construction; and protection and/or relocation of utilities.

The NB Plaza 39 marks the first open Road Toll plaza gantry on the Illinois Tollway’s system to span five lanes of traffic. An all new toll monitoring and violations system was installed, tested, and certified in the northbound traffic lanes through Plaza 39.

Significant grade separation between the northbound and southbound lanes required the construction of 57 drilled shafts for additional structural support below the median retaining wall.

Due to the extremely high volume of traffic in this section of the Central Tri-State Tollway, innovative maintenance of traffic solutions were proposed by the Gonzalez team and utilized by the client in an effort to minimize impacts to the motoring public during construction. Also in an effort to minimize the impact to the motoring public, it was decided by the client to utilize the proposal from the Gonzalez team, to install an additional 90 linear feet of 42” reinforced concrete drain pipe under the existing roadway utilizing a boring process know as jacked pipe installation.

MID AMERICA TERMINAL IMPROVEMENTS

ST CLAIR COUNTY, ILLINOIS The services of Gonzalez were procured by Crawford, Murphy, & Tilly, Inc. (CMT) to provide geotechnical investigation and design recommendations for proposed terminal improvements at MidAmerica St. Louis Airport (MAA) in St. Clair County, Illinois. The modifications were made necessary due to significant growth at the airport over the past several years, increasing in annual passenger enplanements from 13,542 in 2013 to 123,841 by the end of 2017. Improvements proposed for the project include expansion of the existing 2-story terminal facility, passenger curbside modifications, terminal apron fillet widening, and entry/exit roadway reconfiguration.

Gonzalez reviewed extensive historical geotechnical data and used this information to develop a targeted geotechnical investigation. Gonzalez conducted a subsurface investigation that included 9 soil borings at the locations of proposed MAA improvements. Borings were taken at a range of 10—40 feet in depth using hollowstem auger drilling methods. Gonzalez performed laboratory tests on selected soil samples, including visual classification, water content, Atterberg limits, grain-size analysis, unconsolidated-undrained triaxial tests, and consolidation tests.

Upon completion of the subsurface investigation, Gonzalez prepared the project’s geotechnical report. Based on the proposed improvements to MAA facilities and composition of the soil at the project site, shallow foundation and below-grade wall geotechnical design recommendations were provided.

GLEN CARBON STORMWATER PROJECTS

GLEN CARBON, ILLINOIS Gonzalez prepared a stormwater master plan report for the Village of Glen Carbon to address issues with their existing stormwater system. In general, the project consisted of improving overland flow conditions, and increasing storm sewer capacities.

As part of that report, two sites were proposed for improvements in 2018, that would be included in one bid and consisted of: Site 8: Kingsley Way Runoff from a nearby agricultural field caused drainage issues along Kingsley Way. To alleviate the issue, double curb inlets were installed on both sides of the street, and the existing 12” - 15” pipe was upsized to 24” - 30” pipe. Site 25: Wolfe Creek Court A residential home on Wolfe Creek Court received damage from a creek crossing the property. A box culvert was upsized from 78” to 144” to lower the water surface of the creek in order to sufficiently protect the home.

Projects included the following tasks: Boundary survey Easement acquisition Design and bid services Technical specifications Engineer’s opinion of probable cost Permitting assistance Part-time project management during construction