Projects

So-Deep designated the North Portal and South Portal areas. So-Deep was authorized approximately two months later than anticipated. So-Deep worked intently with Parsons Brinckerhoff to prioritize different areas to meet regularly scheduled due dates. So-Deep was very proactive in leading efforts to eliminate costs for vault inspection of Seattle City Light facilities. Our work included all four quality levels. Specifically; over 400,000 feet of designating, 435 test holes and basement inspections. So-Deep also kept team leaders informed of field progress on a regular basis allowing smooth transition into test hole locating and designation of additional areas when the tunnel alignment changed.

One challenging component of the project was the underground survey of the Pike Street ADIT. The tunnel has access through only one manhole (27’ deep) and extends 836 feet to its end wall where the cover is in excess of 120’. The Prime consultant (PB), WSDOT, and King County needed to determine the horizontal and vertical location at the tunnel terminus. So-Deep formulated an approach to survey the inside of the tunnel, developed a tight work plan, utilized specialized survey and video equipment, and insured successful execution by employing an outside and internal safety effort matched to the demanding physical features of the Pike Street ADIT. So-Deep’s personnel have their 40 hour OSHA Certification and are certified in confined space entry. Additionally, personal protective equipment and self -contained breathing apparatus was required.

So-Deep designated, surveyed, and plotted 623,603 feet of utilities for this project, which are owned by 25 different utility companies. The project was so expansive that it was broken into four separate areas that included multiple freeways and surface streets throughout the City of Cleveland. So-Deep coordinated, scheduled, and mobilized over seven designating crews to meet the project deadlines. We recommended a project approach of investigating, mapping and design of areas being impacted by several railroads as the first priority which was critical to the project timeline. This approach was adopted by all stakeholders.

So-Deep provided services directly to the Department and then smoothly transitioned into the role of sub consultant for Burgess & Niple. So-Deep quickly developed positive working relationships with other sub consultants, the city, and utility owners. We provided a phased product return to keep design on schedule.

This project is currently on-going.

This project is part of the Virginia Department of Transportation’s Public- Private Transportation Act (PPTA) using private funding from FLUOR/Transurban. This $1.4 billion project includes 14 miles of Interstate 495 (Capital Beltway) between Interstate 95 in Springfield and just north of the Dulles Access/Toll Road in Tysons Corner. The design is to add two additional lanes both north and south bound to be designated as HOT (High Occupancy Toll) lanes and includes more than 50 bridge replacements.

So-Deep’s scope of services is to provide the depictions of utilities onto the design plans. So-Deep performs utility records research, designating, locating, survey and mapping in accordance with ASCE/C0I 38-02. [Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data], the subsurface utility engineering profession, and pertinent FHWA and AASHTO documents.

The majority of the work is along Interstate 495. To date, So-Deep has designated, surveyed and mapped (Quality Level “B”) over 226,000 linear feet of utilities. In areas where the utilities were under the Capital Beltway pavement, the lines were mapped at Quality Level “C."

So-Deep has documented Quality Level “A” data at over 300 test hole locations. Most of the test holes required major traffic control situations, including the occupying of shoulders and travel lanes of the Capital Beltway. The test holes were challenging due to the depth of most of the utilities (up to 28’ deep), the size of other lines (54” water line) and the fact that some of the lines had been directionally bored under the Capital Beltway right-of-way.

This project is currently ongoing.

So-Deep designated, surveyed and mapped 216,285’ of utilities for two phases of the Mid-Town Tunnel project in the cities of Norfolk and Portsmouth, Virginia. The project is being built under the Public-Private Partnership Act of 1995, which allows the Commonwealth of Virginia to partner with private industry to finance and build highways and other projects. The Mid-Town Tunnel is a heavily congested link between Norfolk and Portsmouth that averages over 1 million vehicles per month. The project was divided into two sections: Phase I - Martin Luther King Boulevard from London Boulevard to and along Interstate 264 in the City of Portsmouth. This phase included congested urban streets, railroads and 1.5 miles of Interstate 264 right-of-way. The project was started in early August, completed and returned by the October 1st due date. Phase II- included both sides of the Elizabeth River at the existing Mid-Town Tunnel. The City of Portsmouth side included Route 58 exiting the tunnel and within the Portsmouth Port Authority property. This area required security clearance from the Port Authority, as well as, TWIC (Transportation Worker Identification Credential) clearance. This very challenging project required multiple crews to endure heavy traffic and security challenges, while working long hours and weekends to keep up with the demands and deadlines.

So-Deep teamed with Dewberry & Davis, LLC and Shirley Contracting under the State of Virginia's Public-Private Transportation Act (PPTA), to convert Route 28 to a limited access highway by constructing clover leafs at all major intersections between I-66 in Fairfax County to Route 7 in Loudoun County; and also to improve and widen Route 657, Centreville Road between Route 50 and McLearen Boulevard in Fairfax County.

So-Deep provided utilities on the design plans. Utility records research, designating, locating, survey, and mapping performed in accordance with ASCE/C-I 38-02 [Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data], the subsurface utility engineering profession, and pertinent FHWA and AASHTO documents.

So-Deep completed the Quality Level "B" mapping and Quality Level "A" locating on three intersections in Loudoun County and two intersections in Fairfax County. Currently in progress are two intersections in Loudoun County (Nokes Blvd. and Innovation Ave.) and two intersections in Fairfax County (Willard Rd. and Frying Pan Rd.) The project has totaled more than 129,000 linear feet of utilities and 168 test holes.