San Francisco–Oakland Bay Bridge East Span Replacement
As part of a joint venture, Moffatt & Nichol provided engineering design and project management services for the replacement of the 2.2-mile-long, dual segment, parallel-deck eastern portion of the San Francisco–Oakland Bay Bridge, which connects Yerba Buena Island and Oakland.
Route 123 Bridges over Occoquan River
VDOT selected Moffatt & Nichol to complete a feasibility study and design for replacement of the Route 123 bridges over the Occoquan River.The firm worked with the citizens of historic Occoquan to address issues regarding aesthetics and bridge type.
Gilman Drive Overcrossing over I-5
The University of California, San Diego has selected Moffatt & Nichol to design a second bridge across Interstate 5 to provide a much-needed vehicular and pedestrian connection between its growing east and west campuses.
Heritage Road Bridge
The City of Chula Vista selected Moffatt & Nichol provide preliminary engineering for the replacement of the temporary bridge over the Otay River at Heritage Road with a new permanent bridge equipped with a center median, shoulders, bike lanes, and sidewalks.
Buckman Springs Road Bridge over Cottonwood Creek
Moffatt & Nichol was selected to provide planning and design with visual simulations for the replacement of the 450-foot-long Buckman Springs Road Bridge.Because of the scenic location, the replacement bridge will be designed to exist harmoniously with its beautiful surroundings.bridges
capabilities and expertise
To date, we have provided such services for more than 500 bridges including such notable projects as:
- East Span Replacement, San Francisco – Oakland Bay Bridge, California – under construction
- Alameda Transportation Corridor, Southern California – a $2.4 billion dedicated freight railroad and industrial expressway connecting the Ports of LA/LB with inland continental rail heads
- El Toro “Y”, Southern California, California – one of the world’s largest freeway interchanges
Capabilities & Expertise include:
Design-Bid-Build, P3 and Design-Build Projects
Bridge Rehabilitation
Bridge Widening and Replacement
New Bridges and Highway Facilities
Bridges on Local Roads
Freeway Overcrossings
Grade Separations, Heavy Rail and Rail Trenches
LRT Guideways and Elevated Stations
Piers and Waterfront Structures
Pedestrian and Bicycle Bridges
Bridges in Concrete, Steel and Timber
Bridges over Environmentally Sensitive Areas
Construction Staging and Maintenance of Traffic
Constructability Reviews and Value Engineering
Construction Engineering and Support
Time-Dependent Construction Analysis
Construction Inspection
As-built Plans and Reconciliation
Design-Builder and Owner Representation
Feasibility and Planning Studies
Conceptual Design
Cost Estimates
Structure Type Selection
Environmental Studies and Documentation
Preliminary and Final Design
Plans, Specifications and Estimates
Seismic Design and Retrofit
Hydraulic and Scour Studies
Vessel Collision Studies
Ice Loading Studies
Deep Foundation Design
Bridge Scour
Storm Surge Analysis
NBIS-Certified Above/Below Water Inspection
Material Sampling and Testing
Service Life Modeling (Concrete Structures)
Repair/Rehabilitation Design Services
Construction Phase Services
Bridge Aesthetics and Context Sensitive Solutions
Bridge Load Ratings
Advanced Finite Element Analysis
Utility Coordination and Relocation
Design of Roadways and Approaches
roads & bridges
Moffatt & Nichol offers a full range of planning, design, project funding and management services for bridge and highway projects.
Moffatt & Nichol offers special expertise in project economics and finance, program management, seismic analysis, deep marine foundations, intermodal systems, vessel impact, and scour analysis. These specialized services allow us to provide clients with a high level of value-added services for the complete range of project development – planning through design and construction.
In addition to conventional highway design, our structural capabilities include inspection, planning, analysis, design, and construction document preparation for the rehabilitation, retrofit or new construction of bridges, trestles and grade separations. Moffatt & Nichol has planned or designed more than 500 bridges ranging from one of the world’s largest freeway to freeway interchanges, the El Toro “Y” in Irvine, California to the $5.5 billion Oakland Bay Bridge Replacement project.
scour analysis
Moffatt & Nichol has specialized in-house expertise on tidal and river mechanics, sediment transport/scour analysis, coastal engineering and hydrology and hydraulics. Applying this expertise together with our 1-D, 2-D and 3-D advance numerical modeling capability, we can evaluate scouring potential for bridges at diversely different site conditions. We have performed scour screening of more than 1000 bridges using FHWA procedures, performed scour analysis of more than 50 bridges, and developed design countermeasures for many scour-critical bridges. On the SF-Oakland Bay Bridge, Moffatt & Nichol recently performed hydrodynamic numerical modeling and physical model testing to forecast the scouring potential. The level of scouring was substantially less than predicted by using empirical formula.
In addition, Moffatt & Nichol is a recognized international leader in the analysis and design of ship collision avoidance and protection systems.
