During the online voting period (November 13 - 22), visitors will be encouraged to vote for the projects they think demonstrate the best of the best from the AEC industry in 2024. Visitors can vote once per day, and winners will be selected based on the number of votes received over the voting period.
Civil + Structural Engineer Media Presents
202 4 2024
Civil+Structural Engineer Media is committed to Elevating the AEC industry, and this award is held in that honor. Please push the red button below the project description to vote for the project you think has best fulfilled that purpose and demonstrates community & environmental impact, innovative technical processes, and/or groundbreaking vision & execution. Please read through all entries before choosing the project you think is the best-of-the-best. Website visitors can vote once per day. All submission proceeds are being given to hurricane relief efforts in the Asheville area, reinforcing our commitment to building resilient communities and creating a positive impact through engineering excellence. HURRICANE RELIEF
Table of Contents
Environmental + Sustainability
Education
Riverside Elementary Lateral Spreading Resistance Element Design
3
8
Dauphin Island East End Beach and Dune Restoration
4
9
Abbotts Meadow Restoration Project
Watson Mountain Middle School
Water + Stormwater
Transportation + Infrastructure
5
10
Great Water Alliance Program
RM 620 Railroad Overpass and Roundabout
Hartsfield-Jackson Atlanta International Airport ATLNext Concourse D Modular Construction (Phase 1)
6
11
Market District
7
12
Rehabilitation of the Devon Bridge Over Housatonic River
Hub RTP
Education
Riverside Elementary Lateral Spreading Resistance Element Design
ENGEO Incorporated Project Location: San Pablo, California Project Start Date: 1 December 2020 Project Completion: 1 August 2021
Project Team: General Contractor/D/B Lead - Overra, Geotechnical Engineer/LSRE Designer - ENGEO, Architect - Gould Evans, Structural Engineer - Silas O’Brien, Civil Engineer - CSW|ST2, LRSE Contractor - Keller Project Background: ENGEO performed design services for the design-build construction of a mitigation of liquefaction-induced lateral spreading adjacent to a Bay Area elementary school. Overlapping deep soil mix (DSM) columns were constructed to create shear panels in the ground parallel to the direction of possible soil movement. ENGEO performed analyses to design the DSM panels as well as preparing the construction drawings and specifications in-house. The project schedule allowed for slightly more than five months to perform the design, achieve concurrence by the West Contra Costa Unified School District’s Geotechnical Engineer, and gain approval by the State of California in order to start construction in the School District’s required timeline. During construction, ENGEO performed part-time observations supporting the contractor’s Quality Control team and the Quality Assurance observations and testing by the School District’s team. The project was constructed in the summer of 2021, meeting the project’s tight schedule. Impact: The liquefaction and lateral spreading hazard was initially identified several years ago. The school had continued operations while the hazard was further evaluated and geotechnical reports were reviewed by DSA and CGS. Now that the project has been completed, the students who attend this elementary school and their families can rest assured that this hazard has been properly addressed. The LSRE was constructed as a series of subsurface shear panels oriented perpendicular to the creek adjacent to the school. The shear panels comprise four overlapping columns of DSM. Each DSM column is approximately 6 feet in diameter and ranges from 23 to 32 feet in depth. The columns are spaced approximately 25 feet on-center. In order to meet an extremely tight project timeline, the review process occurred while design calculations and construction documents were performed. Accomplishments & Accreditations: CalGeo Outstanding Project Awards - Medium-Public Category (Honorable Mention)
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Education
Watson Mountain Middle School J2 Project Location: Loudoun County, Virginia Project Start Date: 1 August 2022 Project Completion: 1 August 2024 Project Team: Owner - Loudoun County Public Schools, Civil Engineer/Landscape, Architect - J2, Architect - Stantec, Contractor - Shockey Project Background: This $111M project delivered a new 211,000 gsf middle school and associated parking, bus loop, and supporting athletic fields on a fast track process. The school, the 100th for the school system, has a capacity for 1,445 students. It is named for the community that it is located in, which was once home to one of the largest populations of free blacks in Loudoun County. This is the first 4-story school for Loudoun County Public Schools. The building was sited on the side of a hill to take advantage of site topography while also adhering to the building height requirements in the agriculture zoning district that it is located in. A master planning process was used to site 3 schools on the property and to study the earthwork necessary to develop and access all 3 schools. Impact: The school supports the local community. It's need stems from overcrowding at a nearby school. The school will initially open with 540 sixth graders and it will eventually include grades 6 through 8. The master plan for the campus that the middle school is located on carefully considered wetlands impacts and rock conditions in the layout. Utilities needed to be extended to the site and the alignments had to carefully work around wetland and floodplain areas while also avoiding adjacent rural policy area property where central water/sewer is not permitted. Road improvements were also required to improve intersection performance and safety in the vicinity of the school. One of the turn lanes resulted in the need to extend a box culvert, triggering the need to perform a floodplain alteration.
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4 csengineermag.com YEA 2024
Construction of the 160- foot-tall, one-million- gallon elevated water storage tank and booster pumping station at the City of Waukesha (E. Broadway Ave.) site. Photo credit: R.A. Smith
Scaffolding for one of the 8.6-million- gallon ground storage reservoirs being built on the Waukesha Booster Pumping Station site.
Water + Stormwater
Overlooking the Waukesha Booster Pumping Station site.
Great Water Alliance Program TYLin Project Location: Waukesha, Wisconsin
Project Start Date: 30 June 2016 Project Completion: 9 October 2023 Project Team: Engineer of Record - TYLin, Client - Waukesha Water Utility, Contractors - SJ Louis, CD Smith, & Super Excavators, inc., Construction Manager - Black and Veatch Project Background: The Waukesha Water Utility (WWU) provides essential water treatment and distribution for a city of 72,000 residents, but they faced a critical issue with a depleting primary water source. The Great Water Alliance Program is a pioneering initiative to solve this critical water issue for the city of Waukesha by diverting water from nearby freshwater giant Lake Michigan. The multi-year, multimillion-dollar Program required adept navigation of complex regulatory landscapes and an exacting approach to balance long-term sustainability and cost-effectiveness for the community’s benefit. Key challenges included transitioning to the new water supply and relocating pumping stations. With 90% of the pipeline located outside its served community, coordination and extensive permitting across seven communities, two counties, and multiple federal agencies was crucial to keeping the project on schedule. The project included 36 miles of pipeline, two pumping stations, two eight-million-gallon ground storage reservoirs, a one- million-gallon water tower, a return flow pumping station, and a new outfall facility. Impact: The Program incorporated sustainable practices to protect the environment and sustain the Great Lakes watershed. Key achievements included the use of environmentally friendly materials such as ductile iron and asphalt produced from recycled source materials, the use of American Iron and Steel, stormwater management on the construction site to reduce the impact on surrounding wetlands, and the restoration and expansion of pollinator habitats to offset the effects on local wildlife. One of the Program’s most significant achievements is its ability to maintain a net zero impact on Lake Michigan. Twenty-three miles of force main, known as the “Return Flow Pipeline,” with a pumping facility at Waukesha’s Clean Water Plant, facilitate this process. Using environmentally friendly materials and advanced technologies allowed the team to minimize the environmental footprint while keeping costs down and delivering a project designed to last 100 years. These efforts saved the community an estimated $40 million. The benefits to the public and surrounding Great Lakes area will extend far into the future through the Great Water Alliance Program. Accomplishments & Accreditations: National Recognition Award, American Council of Engineering Companies (ACEC), 2024, Engineering Excellence Award, ACEC of Wisconsin, 2024 (Best of State), Project of the Year, Wisconsin Section of the American Water Works Association, 2024.
City of Waukesha (E. Broadway Ave.) site including booster pumping station, reservoirs and a water tower nearly complete. Photo credit: R.A. Smith
Open House during the route study portion of the Program to get feedback from the community on the proposed transmission main routes.
Trenchless installation of a 30-inch HDPE (high density polyethylene) pipe. Photo credit: R.A. Smith
Members of the TYLin team with the Waukesha Mayor and General Manager in the main pumping room of the Waukesha Booster Pumping Station.
Map of the City of Waukesha service completely transitioned to Lake Michigan water.
General overview of pipeline flow and location.
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Water + Stormwater
Market District ISG Project Location: Des Moines, Iowa Project Start Date: 1 April 2020 Project Completion: 1 June 2024
Project Team: Jerremy Foss, PE, CNU-A, Nick Frederiksen, Will Kratt, PE, PTOE, Chris Frederiksen, Jessica Wendinger, Kent Hays, Micky Eberth, PE, Marisa Young , Joe Klinkel, Stephanie Merdan Project Background: The Market District Master Plan aimed to rejuvenate about 30 acres of the East Village of Des Moines by focusing on the importance of water and visualizing it through the use of green infrastructure. ISG has supported and led the plan’s implementation, providing design services at the conceptual, preliminary, final, construction administration, and traffic impact stages. Over 80 bioretention cells, bioswales, and a water quality basin were designed to treat about 20 million gallons of water each year prior to reaching the Des Moines River. The project required coordination amongst a dozen jurisdictional entities and three property owners to meet the expectations and vision of The District Developer, LLC, the City of Des Moines, and MidAmerican Energy. This allowed for an efficient layout of new infrastructure that cohesively connects to the existing systems in place which provided an organized utility design. Impact: The Market District sets a new standard for integrating urban and green infrastructure at scale, serving as a model for future redevelopment efforts. ISG’s district-wide approach replaces fragmented, property-specific stormwater solutions with a holistic system that promotes sustainability, long-term efficiency, and urban transformation. By combining infrastructure with intentional design, the project demonstrates how engineering can enhance urban livability, shifting public perception of its role in community development. The project’s stormwater management system delivers significant social, environmental, and economic benefits. The biocell system, paired with the City’s dual-purpose detention park, mitigates flood risks while creating a public space that promotes outdoor activities and social interaction, fostering a stronger sense of community. Additionally, the project supports environmental remediation efforts at the adjacent Two Rivers Park, contributing to sustainable redevelopment and public health improvements through cleaner water systems and restored natural areas. This project exemplifies how thoughtful engineering can drive urban revitalization and enhance public spaces.
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Water + Stormwater
Hub RTP McAdams Project Location: Durham, North Carolina Project Start Date: 1 March 2015 Project Completion: 26 October 2023
Project Team: Amos Clark, PE (water resources principal), Lee Weaver, PE (civil engineering), Rebecca Stubbs, PE (stream enhancement), Craig Ballard (stream enhancement), Maria Torres, PE (FEMA modeling) Project Background: Hub RTP is a 40-acre transformative mixed-use project in Research Triangle Park (RTP). RTP created a new zoning district specifically for this site with the goal of developing retail, hotel and residential uses which had been excluded for the previous 50 years. This project adds amenities that attract visitors not just for work, but for living and playing, allowing RTP to continue competing with alternative research parks worldwide. McAdams developed the initial master plan for Hub RTP and provided surveying, subsurface utility engineering (SUE), stream restoration design, flood modeling, environmental impact permitting and civil design expertise for the infrastructure development. Central to the site lies a tributary to Burdens Creek which had been straightened and banks lined with riprap in the 1960s providing little experiential benefit or ecological function to the site. The opportunity to enhance the stream and establish a centralized, open-space amenity was critical in establishing Hub RTP as a desirable destination. Impact: The stream enhancement design modified the existing channel cross-section, incorporated subtle meanders, and adjusted the profile to improve bedform diversity establishing riffle-pool sequences as is typical of North Carolina Piedmont streams. Design parameters for dimension, pattern, and profile were developed using a combination of regional curve and reference reach data. To provide long-term stability to the urban stream with a developed watershed, boulder j-hook grade control structures and boulder toe bank protection measures were utilized. McAdams worked closely with the landscape architect in developing a robust planting plan of native grasses, shrubs, and trees whose root systems will provide streambank and slope stability and shade to the stream. A substantial pedestrian bridge was an important design element to allow visitors to experience the stream enhancement. In addition to the stream enhancement project, McAdams was tasked with designing and obtaining permits for several other major infrastructure elements that serve Hub RTP and ensure future development within the greater RTP area will have a foundation in place to support ambitious growth plans. Each of these project elements came to fruition as a result of investment of public funding from Durham County.
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Environmental + Sustainability
Dauphin Island East End Beach and Dune Restoration
Goodwyn Mills Cawood Project Location: Dauphin Island, Alabama
Project Start Date: 13 December 2023 Project Completion: 30 October 2024 Project Team: Civil Engineer - Goodwyn Mills Cawood, Contractor - Weeks Marine, Inc, Coastal Engineer - South Coast Engineers, Consultant - Moffat & Nichol Project Background: Dauphin Island is a cherished part of Alabama’s coastline, the 14-mile-long barrier island south of Mobile is home to beautiful beaches and a wide variety of species that inhabit the sky, sea and sand. Erosion, hurricanes, and the passage of time have threatened these critical environments. The current restoration project began with Phase I in 2016, significantly mitigating erosion and habitat damage. Phase II aimed to continue this success, marked as a top priority in the US Army Corp of Engineers’ Final Alabama Barrier Island Restoration Assessment Report. With $22 million in funding from the National Fish and Wildlife Foundation Gulf Environment Benefit Fund and the National Coastal Resilience Fund, this phase replenishes approximately 1.5 miles of shoreline and 88 acres of beach and dune habitats, crucial for seabirds, shorebirds, migratory birds and sea turtles. This unique project ensures Dauphin Island’s East End Beach is a flourishing refuge for wildlife and a peaceful escape for visitors. Impact: The project’s impact on Dauphin Island is significant and lasting. The project accomplished the following: 400 feet wider beaches, 1,200,000 cubic yards of sand placement, 60 acres of beach habitat created, 20 acres of dune habitat created, 12,400 linear feet of sand fence and 691,000 native dune plants of multiple varieties planted. Environmental care was crucial throughout the project especially considering the delicate coastal ecosystem. The creation of habitats and dunes will allow the wildlife in the area to enjoy more of the beach and thrive sustainably for years to come. This project has not only renovated and expanded the beach but it also serves to protect the beach from erosion and damage from the passage of time, weather and hurricanes. The extended shoreline creates an additional layer of protection should extreme weather or other disturbances come to the region. This protects all residents of the town, humans and animals.
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8 csengineermag.com YEA 2024
Abbotts Meadow marsh elevation post sediment pumping and placement from an offshore wind port project, five miles from the wildlife area.
Environmental + Sustainability
Pumping during the construction phase to raise the marsh elevation by six feet to support native vegetation and restore sensitive bird habitat.
Abbotts Meadow Restoration Project WSP Project Location: Salem County, New Jersey
Due to poor hydrology and sea level rise, vegetation is converting to large open water areas. Tidal waters become trapped, native vegetation drowns, and deep tidal channels cut through the phragmites “islands.”
Click to play informational video
Project Start Date: 1 November 2023 Project Completion: 31 January 2024
Click to play informational video
Project Team: WSP USA, Gahagan & Bryant Associates Inc (GBA), New Jersey Department of Transportation Office of Maritime Resources, New Jersey Department of Environmental Protection Division of Fish and Wildlife , New Jersey Economic Development Administration Project Background: The Abbotts Meadow restoration project proved that one project’s trash can be an agency’s treasure. The Abbotts Meadow marsh suffered from years of degradation due to human impact and sea level rise. With every tide, water inundated the 365-acre marsh, was trapped, and could not drain out. The marsh was drowning, and wildlife was suffering. Five miles south, a new port was under construction to serve an emerging offshore wind industry, marshalling New Jersey’s transition to clean energy. The port required access to navigable waterways and creating new channels to connect to deep water in the Delaware Bay. Dredging new channels generated approximately 600,000 cubic yards of clean sediment – the equivalent to approximately 45,000 dump trucks of dirt. As project lead, WSP designed the dredging and restoration projects, from concept through full engineering and permit approvals, to hydraulically pump the sediment to the Abbotts Meadow site. Impact: The largest project of its kind in New Jersey, the Abbotts Meadow Restoration project restored 365 acres of the Abbotts Meadow Wildlife Management Area through the beneficial reuse of approximately 600,000 cubic yards of fine-grained dredged material. The project used the dredged material to build up large open water and mudflat areas, re-establish tidal marsh vegetation, increase sedimentation rates, facilitate marsh migration and climate change adaptation and prioritize a matrix approach to habitat restoration that supports critical bird species. The Abbotts Meadow restoration exemplifies how beneficial use of dredged material and fine-grained sediment management techniques can be replicated at other wetland management sites, even on a smaller scale. It also serves as a model for wetland restoration and climate resiliency projects along the coastline. WSP meticulously handled the project’s planning, design, and engineering, and managed the construction of dredging and sediment placement at Abbotts Meadow. Accomplishments & Accreditations: CalGeo Outstanding Project Awards - Medium-Public Category (Honorable Mention)
Prior to restoration, the Abbotts Meadow marsh lacked biodiversity, consistency primarily of open water, mudflats, and phragmites dominated marsh. Photo credit: R.A. Smith
At grade level marker following the marsh clearing.
Natural regeneration of tidal marsh species including sea club rush (Bolboschoenus maritimus) and saltmarsh chord grass (Spartina alterniflora).
Abbotts Meadow placement area 1 post invasive species clearing. A partnership among New Jersey’s Department of Transportation, Department of Environmental Protection, and its Economic Development Agency is working to secure the area’s future.
Abbotts Meadow is a model for ecological restoration and climate resilience that simultaneously advances the State’s clean energy transition and decarbonization goals.
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Overview of completed RM 620/Round Rock Avenue.
Traffic in the “before” condition of the intersection of RM 620 and Chisholm Trail.
Computer-generated rendering of the proposed roundabout at Chisholm Trail.
Transportation + Infrastructure
RM 620 Railroad Overpass and Roundabout Halff Project Location: Round Rock, Texas
Aesthetic treatments are used on bridge structures, retaining walls, and flatwork.
Photo of the “after” condition of the constructed roundabout at Chisholm Trail.
KVUE - Traffic improvements coming for Round Rock road
City of Round Rock - Street Cred: RM 620
Project Start Date: 5 April 2018 Project Completion: 8 March 2024
Project Team: Primary Professional - Halff, Bridges & Roads - Grupo Puentes (General Contractor), Structural Engineering/MEP Engineer - STV, Inc., Environmental Consultant - SWCA Environmental Consultants, Traffic Signal Engineer - Kimley-Horn Project Background: The RM 620 Railroad Overpass and Roundabout project was years in the making and aimed to improve a major east-west arterial roadway in Round Rock, between Deep Wood Drive and Interstate Highway 35. The project included road widening, medians, sidewalks, overpasses at key intersections, improved at-grade railroad crossings, enhanced storm drainage and water quality improvements. TThe completed roadway includes bridge overpasses at N. Lake Creek Drive and Chisholm Trail Road. The intersection at Chisholm Trail Road was reconfigured from a traffic signal into a roundabout, which is bisected by the at-grade railroad crossing. The bridge overpass extends over the entire roundabout and railroad tracks taking approximately 90% of traffic over the railroad crossing and out of the intersection. The walls and bridges included aesthetic treatments. The aesthetics, safety improvements, and access provided by the roundabout are signature aspects of the project. Impact: The project sought solutions that yielded community and environment benefits, while minimizing detrimental impacts. The design team considered safety, sustainability, user education, and community needs during project development. The slower roundabout speeds combined with greatly reduced traffic volumes made a roundabout the ideal design for the Chisholm Trail intersection near Round Rock High School. It is now a much safer and less congested intersection for both pedestrian and vehicular traffic. Self-contained treatment units for water quality management were provided for environmental protection of the outfall and the environmentally sensitive Edwards Aquifer and potential habitat of threatened and endangered species. Although roundabouts have recently gained popularity within the region, they were not common during the design phase 10 years ago. Halff produced a computer-generated, first-person drive-through video of the proposed overpass and roundabout, including narration, to educate the public on the project and how to navigate it. Accomplishments & Accreditations: American Public Works Association (Texas Chapter) - Project of the Year, $25 to $75 million Category
The ribbon-cutting ceremony was attended by public officials from Round Rock, Williamson County, and the Texas Department of Transportation (TxDOT).
The new conditions feature improved accessibility and increased pedestrian safety.
Aerial of the roundabout at the Chisholm Trail intersection and railroad crossings.
Bridge at Lake Creek Drive for improved safety near Round Rock High School.
Educational video created by Halff (posted by Grupo Puentes)
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10 csengineermag.com YEA 2024
Construction at the modular yard was one mile from the final placement location for the Concourse D modular units.
Modular units were dressed with cameras and test placements were conducted to ensure that the 710-ton units could be successfully loaded on the self-propelled modular transport with minimal deflection.
Modular units prepare on self- propelled modular transport for overnight move and placement.
Transportation + Infrastructure
Hartsfield-Jackson Atlanta International Airport ATLNext Concourse D Modular Construction (Phase 1) WSP
Project Location: Atlanta, Georgia Project Start Date: January 2024 Project Completion: September 2024
Building Information Modeling and precision surveying were critical for clash detection and correction of and mechanical, electrical, plumbing, fire protection, security and technology systems rough-ins conducted on the Mod Yard.
Modular units were moved one mile from the mod yard across runways and taxiways between one and four AM in careful coordination with the airport control tower.
Atlanta’s Hartsfield-Jackson Airport Begins Concourse D Upgrade
ATL Concourse D Widening | ATLNext
Project Team: WSP, H.J. Russell & Company and Turner & Townsend Heery (Joint Venture), CM Support Services - ATL Construction Management Partners (ACMP JV), Design - Corgan-Goode Van Slyke (C-GVS JV), Construction Management At-Risk - Holder-Moody-Bryson-Sovereign (HMBS JV), Planning Services - Ricondo-TCE JV Project Background: Hartsfield-Jackson Atlanta International Airport (HJAIA) is putting the “mod” in modern construction by building and transporting large modular units to expand and revitalize Concourse D at the world’s busiest airport which serves over 100 million passengers per year. The $1.4 billion project involves moving 19 modular units at 1:00 a.m. from a mile away and crossing two runways. The project is aimed at increasing the narrow, 44-year-old Concourse D’s footprint, the smallest of the airport’s # concourses, by widening it from 60 feet to 99 feet and extending its overall length by 288 feet to accommodate today’s larger aircraft and enhancing the passenger experience. The project is a complex combination of modular and traditional construction that minimizes airport disruptions and accelerates the project timeline. Impact: The project sought solutions that yielded community and environment benefits, while minimizing detrimental impacts. The design team considered safety, sustainability, user education, and community needs during project development. The slower roundabout speeds combined with greatly reduced traffic volumes made a roundabout the ideal design for the Chisholm Trail intersection near Round Rock High School. It is now a much safer and less congested intersection for both pedestrian and vehicular traffic. Self-contained treatment units for water quality management were provided for environmental protection of the outfall and the environmentally sensitive Edwards Aquifer and potential habitat of threatened and endangered species. Although roundabouts have recently gained popularity within the region, they were not common during the design phase 10 years ago. Halff produced a computer-generated, first-person drive-through video of the proposed overpass and roundabout, including narration, to educate the public on the project and how to navigate it.
The self-propelled modular transporters aligned and placed the modules on new foundations parallel to existing concourse D with accuracy within 1/16 of an inch.
Hartsfield- Jackson Atlanta International ATLNext Program
Completed and expanded gate waiting area. When fully completed Concourse D will have 34 new aircraft designed Group III gates that accommodate larger aircraft and provide 20% more seating at peak period.
Phase 7 - modular units in use. When all modules are placed Concourse D will we widened from 60 to 99 feet and extended 288 feet.
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11 csengineermag.com YEA 2024
UHPC Test Batches
Transportation + Infrastructure
Rehabilitation of the Devon Bridge Over Housatonic River M&J Engineering Project Location: Stratford and Milford, Connecticut Project Start Date: 1 July 2021 Project Completion: 15 December 2023 Project Team: Connecticut Department of Transportation (CTDOT) Domenic Larosa, M&J Engineering Stacey Epps, Close Jensen, and Miller, P.C. (CJM) John Miller, Mohawk Northeast, Inc. Project Background: The Rehabilitation of the historic Devon Bridge stands as a testament to M&J Engineering’s commitment to preserving vital infrastructure with innovative solutions. This bascule draw bridge, stretching 859 feet across the Housatonic River and linking Stratford and Milford, is the longest drawbridge on the Boston Post Road and has been listed on the National Register of Historic Places since 2004. To restore this vital structure to a “State of Good Repair,” M&J, working with Mohawk Northeast, Inc., Close, Jensen & Miller, P.C., and the Connecticut Department of Transportation (CTDOT), undertook extensive efforts to address the structural deterioration and wear affecting its steel and concrete elements. As part of the scope of work, the rehabilitation addressed balance issues related to the bridge’s movable span. In preserving this historic drawbridge, M&J Engineering’s team honored its storied past while preparing it for continued service, showcasing a blend of technical expertise and respect for Connecticut’s engineering heritage. Impact: As a historic structure and vital connector between Stratford and Milford, the bridge supports a substantial flow of both commercial and residential traffic, easing pressure on nearby routes such as I-95. The project enhanced safety and reliability for thousands of daily users, ensuring that residents and local businesses continue to enjoy efficient access across the Housatonic River. Environmentally, the use of Ultra High- Performance Concrete (UHPC) was a strategic choice for its durability and extended lifespan—up to 50 years, compared to the typical 20 years for standard concrete. This longevity minimizes the need for future repairs, thereby reducing the consumption of materials and energy required for maintenance. Throughout the project, meticulous planning ensured that construction activities minimally disrupted the local community. Keeping the bridge operational allowed uninterrupted flow of vehicular and marine traffic, supporting the daily routines of residents and preserving access to the Long Island Sound.
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