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I-95 Parkway Commuter Lot
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Location: Prince William County, Virginia
I-95 Parkway Commuter Lot

I-95 Parkway Commuter Lot

GROUPE provided planning, surveying, and engineering services for the design of a 1,500-space expansion on 20 acres at the I-95 commuter parking lot, located on Prince William Parkway in Woodbridge.  Services provided included review of existing plats and plans, topographic and boundary survey, schematic design, stormwater management, final design, and construction documentation. GROUPE was responsible for coordinating efforts with wetland and environmental sub-consultants for the design of the stormwater management facility. Obtaining final design approval required numerous meetings, presentations, and hearings with County and VDOT staff, citizen’s groups, the Planning Commission and the Board of County Supervisors.

Challenges & Highlights

  • Conceptual Planning: On this project, GROUPE was given a clean slate and had to develop the Parking lot layout.  The planning process started with interviewing commuters that used the existing 200-space park and ride lot.  This process took two months.  GROUPE determined that there were several different types of commuters using the existing lot.  The different commuter types included: Slugs, vanpool operators, Kiss and Ride commuters, fleet car commuters and park and ride commuters.  The site plan design accommodated all commuters by including designated drop-off lanes, van pool parking areas and signage.
  • Site Plan Design: Wetlands, steep slopes, neighboring property owners, ingress/egress and the existing park and ride were significant constraints that had to be accounted for during the site plan design process.  To obtain the owner’s goal of 1,500 parking spaces GROUPE avoided wetlands by designing steep slopes (2H:1V)      which required geotechnical engineering approval.  The end product met the owner’s goal.
  • Existing Utilities: Two existing waterlines, running parallel to each other, traversed through the site.  One waterline was 36-inches in diameter and the other was 24-inches in diameter.  The existing waterlines were a significant constraint.  During the design GROUPE had to make sure that the waterlines had the proper amount of soil cover, too much or too little would adversely affect the existing waterlines.

Project Description

Skill Needed: Civil Engineering Highway Engineering Land Surveying
Categories: Public Projects
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