Drake Haglan & Associates is honored to receive the ACEC 2019 Engineering Excellence Award for Category C Structural Systems on the 11th Street East Tracy Overhead Bridge Replacement Project

The 11th Street East Tracy Overhead Bridge, located in Tracy California, was originally constructed in 1960. In October 2004, Caltrans classified the bridge as “Structurally Deficient,” with a Sufficiency Rating of 49.7 making the bridge eligible for replacement under the Federal Highway Bridge Program (HBP).

In 2018, the opening of the newly completed bridge marked the conclusion of a multi-year journey that included extensive coordination with multiple stakeholders and regulatory agencies.  Drake Haglan & Associates (DHA) take pride in leading the design efforts and is honored to be awarded the 2019 Engineering Excellence Award for Category C Structural Systems Award for the 11th Street East Tracy Overhead Bridge Replacement Project by the American Council of Engineering Companies (ACEC).

The new bridge provides for wider traffic lanes, 8-foot wide shoulders which also serve as Class II bicycle lanes, and barrier-separated mixed-use paths that promote the safe use across the Union Pacific Railroad (UPRR) tracks by pedestrians and bicyclists. The new bridge will also stimulate sustainable growth and development on the east side of the tracks since it will promote the use of alternative modes of transportation to access downtown Tracy. The bridge is located approximately ½ mile east of Tracy High School, allowing students that live on the east side of the UPRR tracks to safely walk and bike to the high school.

The superstructure of the replacement bridge consists of a cast-in-place, post-tensioned concrete box girder. The bridge is a single-span structure with an overall bridge length of approximately 291-feet. The girders are skewed relative to the centerline of the roadway such that the actual span length of the girders is approximately 200-feet. The bridge configuration accommodates a planned aerial intersection for a future extension of MacArthur Drive shown in the City’s General Plan. The 40- foot tall abutments are designed as free-standing bents with a mechanically stabilized earth (MSE) wall directly behind the abutments so that there is no lateral load on the abutments.

This project involved significant coordination with Caltrans since 11th Street is a principal arterial on the National Highway System. The 11th Street East Tracy Overhead Bridge is also a high-cost bridge project as the construction costs exceeded $20 million.

DHA served as the prime consultant on this federally and locally funded project in Tracy.

DHA’s services included:

  • Project Management
  • Agency Coordination
  • Bridge Design
  • Civil/Roadway Design
  • Utility Coordination
  • Construction Support
  • Environmental Monitoring

The project was a model of collaboration from the beginning through construction completion. Much of this project’s success can be attributed to diligent proactiveness by the DHA design team, the Hanna Group CM team, Teichert and MCM prime contractors, and the City of Tracy.

City of Goleta wins Bikeways and Trail Project of the Year

Drake Haglan and Associates (DHA) is proud to congratulate the City of Goleta on the Bikeways and Trail Project of the Year Award for the Hollister Avenue Class I Bike Path/Multi-Purpose Path SRTS Project.  Awarded by the American Society of Civil Engineers (ASCE) Los Angeles Section, the project is recognized for its unique technical achievements, its complexity, scope and engineering features.

The project included curb extension intersection treatment, Class II bike lane, Class I bike path, sidewalk, bus pullouts, lighting and traffic signal, bioretention, and landscape and irrigation improvements.  Additionally, the project included reconstruction of one mile of roadway with crown correction, hardscaped and landscaped medians on Hollister Avenue between Ellwood Elementary School and Pacific Oaks Road. The path promotes active and sustainable transportation for all. 

DHA is proud to have prepared design and construction bid documents, and provided construction support for the project.

Job well done City of Goleta! 


Alhambra Valley Road at Pinole Creek Washout Repair | Contra Costa County

DHA, through an on-call agreement, provided emergency design services for a washout and culvert replacement for Contra Costa County at Alhambra Valley Road over Pinole Creek.  Due to an existing debris blocked culvert pipe, creek flows overtopped the culvert and eroded away the existing 2-lane Alhambra Valley Road to a depth of approximately 25-feet below the road surface.

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Hickman Road Bridge Replacement Project | Stanislaus County

DHA is proud to lead the design for the Hickman Road Bridge Replacement project in Waterford.  Stanislaus County in coordination with the City of Waterford are currently planning the replacement of the Hickman Road Bridge over the Tuolumne River.   Chris Brady, Stanislaus County Public Works, Deputy Director, was recently featured in a KCRA news report addressing the need for a new bridge.


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Let There Be Light

Sacramento City College Pedestrian and Bicycle Bridge shines brightly! The newly installed up-lighting enhances this award-winning DHA project. Stop by to view the light show today!

Bridge over Troubled Water Wins Big

Alpine Meadows Road Bridge Replacement Project Receives Multiple Awards

Spanning the Truckee River in the scenic Tahoe National Forest, the Alpine Meadows Road Bridge is the sole entrance into the Squaw Valley/Alpine Meadows Ski Resort, as well as a number of private residences in the Alpine Meadows Valley. The DHA team replaced the bridge, improved pedestrian and bicyclist safety, upgraded the storm water quality facilities, and enhanced the overall entrance appearance at Alpine Meadows. DHA designed a new 120-foot long, single-span, pre-cast, pre-stressed concrete wide flange girder structure, as well as a temporary on-site detour to remove and replace the existing bridge in a single construction season. The result: A beautiful bridge that has received awards to-date from ACEC California, APWA Sacramento, and ASCE Sacramento.


A Community United

Newly Completed City College Pedestrian and Bicycle Bridge Opens

The ribbon cutting ceremony for the Sacramento City College Pedestrian and Bicycle Bridge project featured the DHA design team, City of Sacramento and Los Rios Community College District staff, Sacramento City Council Members, Curtis Park residents, local bicycle advocacy groups, and even Girl Scout troops. Together, this unique community celebrated the unveiling of this iconic structure: an overcrossing that spans the Sacramento Regional Transit District (RT) light rail tracks and the Union Pacific Railroad (UPRR) tracks adjacent to Sacramento City College, connecting the City College on the west side of the tracks and the Curtis Park Village Development on the east side of the tracks via the overcrossing. The project included construction of a tied-arch bridge across UPRR tracks, as well as a pre-cast cored slab bridge structure across the Sacramento City College Light Rail Station, approach ramps on both sides of the UPRR and RT tracks, stairs, lighting, underground utilities, landscaping and irrigation facilities. Other project features included differing types of overhead structures, including cast-in-place box girders, pre-cast, pre-stressed voided girders, and reinforced concrete box girder approach ramps and slabs. The DHA team recently received a 2016 APWA Sacramento Chapter Project of the Year Award for this project.

Photos courtesy of the City of Sacramento