AREAS OF EXPERTISE
HIGHWAYS,STREETS
& STRUCTURES
FUTURE FORWARD ROADWAY ENGINEERING & DESIGN
McMahon is an industry leader for many types of design projects: local, county and state highways; streets and structures; and multimodal transportation. Our projects are delivered using different types of project development and delivery processes based on the type of funding for a project.
Many of our projects are funded with Federal and State highway funds, state-wide Multimodal Grant Programs, state-wide Transportation Infrastructure grants, and county and local funds.
The success of our projects are a result of our engineers' knowledge of state and federal design standards and guidelines, as well as the ability to apply vast prior project experience.
HIGHWAYS & STREETS
RELATED SERVICES
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Roadway/street reconstruction
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Highway & intersection improvements
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New state & local roadways
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Roundabouts
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Complete streets & traffic calming
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Bicycle & pedestrian facilities
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Trails & shared used paths
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Streetscape improvements
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ADA compliance
Our highly skilled and experienced engineers have completed the following engineering services for state DOT, highway agency, county and municipal agencies:
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Engineering feasibility studies
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Conceptual designs
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Preliminary engineering and final designs
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NEPA compliance documents
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Environmental permits
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Utility and Right-of-Way engineering
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Preparation of engineering construction plans
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Plans, Specifications and Estimates packages
PROJECTS
SEE OUR NEW MARSTONS MILLS
FEATURE VIDEO
SEE OUR SWARTHMORE ROUNDABOUT VIDEO
FEATURED ON THE PENNDOT's SITE
STRUCTURES
RELATED SERVICES
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Structural analysis
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Bridge replacements
& rehabilitations -
Culvert replacement
& widening -
Pedestrian bridges
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Traffic sign structure foundation design
McMahon provides structural-related design services in the Mid-Atlantic region for all types of transportation projects. These services include the design and analysis of highway bridges and retaining walls, in addition to the design of foundations for various projects, such as traffic signal poles and mass transit platforms.
McMahon has completed design and analysis projects for multiple agencies including PennDOT, Pennsylvania Turnpike Commission, counties and municipalities, as well as private developers.
These structures primarily consist of:
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Precast prestressed
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Spread box beam bridges
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Adjacent box beam bridges
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Plank beam bridges
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PA bulb-tee bridges
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Steel beam bridges
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Precast concrete
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Arch culverts
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Box culverts
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SEE OUR TIME LAPSE
PROJECT VIDEO
PROJECTS
BRIDGE INSPECTION
RELATED SERVICES
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NBIS Bridge Safety Inspection — state & locally owned
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NBIS inspection of large, unique and/or complex bridges
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Bridge ratings
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Post-flood inspections
The safety of bridges in the Commonwealth of Pennsylvania is among the most critical responsibilities for PennDOT. McMahon has had a long-standing relationship with PennDOT providing bridge safety inspections, load rating analysis and related bridge inspection engineering for many years in accordance with PennDOT Publications 100A and 238. McMahon employs many Certified Bridge Safety Inspectors in our Mid-Atlantic Region to serve client needs.
SEE OUR BRIDGE INSPECTION TEAM VIDEO
PROJECTS
SURVEY SERVICES
RELATED SERVICES
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Roadway & site surveys
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Specialized topographic survey for H&H studies & ADA compliance
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Small bridge surveys
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GPS/GNSS data collection
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As-built & Green Street infrastructure surveys
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Wetland locations
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Utility location mapping
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Right-of-Way & deed research
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Construction stakeout
The majority of McMahon's highways, streets, structures and transportation design projects require detailed topographic base mapping. Within the Mid-Atlantic region, these survey services are completed by our Topographic Survey Group for our state DOT, county and municipal, and private projects.
In addition, the Survey Group completes ADA compliance surveys and construction stakeouts for many contractors in the Mid-Atlantic region.
PROJECTS
CONSTRUCTION SERVICES
RELATED SERVICES
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Construction administration, inspection &
engineering -
Design/build
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Shop drawing reviews
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As-built drawings
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Construction cost estimating
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Daily construction reports
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Traffic management plans
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Temporary lighting plans
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Construction monitoring
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Construction stakeout
McMahon has provided construction services for a multitude of roadway, intersection, pedestrian facility, bridge and traffic signal projects from Maine to Florida.
These services were provided in accordance with the desired client, municipal and/or DOT standards.
The array of construction phase services offered by McMahon contribute to the successful completion of your project.
PROJECTS
