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This mobile LiDAR scan gathered guardrail length inventory and assessed its condition in accordance with VDOT’s Maintenance Rating program. This data enables VDOT to develop a maintenance plan, allocate the work force and secure a budget for the project.

Using mobile LiDAR and our automatic feature extraction tools, we determined Virginia Department of Transportation (VDOT) Staunton District’s Interstate mowing acreage for all of their mowing scenarios. From paritial to full width and tractor to slope to hand mowing, we calculated the acreages from the post-processed and extracted LiDAR point cloud. We also produced shape files and corresponding GIS attributes identifying each mowing area for VDOT’s database.

PILLAR utilized decades-old plan sheets, LiDAR scanning technology, and crews on the ground with an iPad and InfraTrak to conduct inventory and assess more than 40 asset types on interstates and U.S. highways in the Salem Districts. Assets inventoried included 4,700 signs, 1,198 guardrail terminals, 1,088 drop inlet catch basins, 828 light poles, 408 pavement messages, and 205 miles of longitudinal guardrail. The Virginia Department of Transportation took this information and used it for the development of its work plans and budgets.

PILLAR collected inventory and assessed the condition of all the drainage pipe and structures located along the I-95 corridor (mainline and ramps) in Caroline, Spotsylvania, and Stafford Counties for Virginia Department of Transportation (VDOT) Fredericksburg District Office. PILLAR’s office personnel geo-referenced design plan sheets to obtain the initial GPS position of the structures into a GIS database.

VDOT District 1 needed to quantify several large overhead signs along the interstate which were scheduled for replacement. They required us to gather the dimensions as well the wording on the current signs so new signs can be fabricated to match the existing sign. This allowed VDOT to swap out the signs without having to change or modify the support structure. We initially obtained the information via mobile LiDAR and verified measurements utilizing conventional and traditional survey methods.

VDOT District 4 uses PILLAR employees to assist in verifying recommended repairs identified in the NBIS reports and ensuring those repairs are made. The work is on bridges throughout the district primarily on primary and secondary roads. Our responsibilities include verifying work, labor, material quantities, and traffic control restrictions as well as being a liaison to the Department and providing recommendations on repairs due to changed field conditions.

Through our statewide maintenance consulting services contract, PILLAR provided the VDOT Salem District Pavement Office with personnel to assist its pavement engineer. Personnel performed many tasks, including: input and maintenance of all pavement data for routes in the district; maintenance of Highway Traffic Records Information System and Pavement Management System; coordinating pavement performance testing; and assisting in Wet Accident Reduction Program investigations.

PILLAR, Inc. performed a visual and structural inspection and developed as-built mapping of Virginia Department of Transportation (VDOT) underground stormwater management basins located along Route 23 bypass in Norton, VA. We produced reports by documenting basin condition through pictures and notes and developed a repair design for one of the structures. We utilized our confined space entry training and protocol along with air quality meter readings.

PILLAR was hired to design repairs for a sink hole appearing at the I-81, exit 14 truck rest area. Excavation work discovered the hole was underneath a run of storm sewer piping, which had collapsed and contributed to the subsidence of pavement. The sink hole was chocked with larger rock and layered with progressively smaller diameter aggregate. The storm sewer pipe was then re-laid and the subgrade brought up to subbase level with concrete pavement level with the surrounding pavement.

For the I-81 Exit 150 interchange reconfiguration project, PILLAR designed the large retaining wall block system located on the northwest corner of the roundabout. After evaluating several different large retaining wall block systems, we settled on using the ReCon product. Our work also included obtaining permission from VDOT to use this product by addressing their maintenance concerns.

PILLAR is working as a sub consultant to program manager HNTB to provide advice and OMR cost estimates for various P3 transportation projects as part of their Major Mobility Investment Program (MMIP).

PILLAR is doing work as a sub consultant to Ernst & Young, teamed up with HNTB to provide advice and OMR cost estimates for the I-55 Managed Lanes project, which adds at least one Express Toll Lane with dynamic pricing in each direction of traffic.

Working as a sub consultant to Ernst & Young, PILLAR teamed with HNTB and others to provide advice and OMR cost estimates for various P3 transportation projects

With drainage ditches failing to convey stormwater runoff at the Bastian Rest Area due to years of wear by tractor trailers, PILLAR was hired to survey the ditch and design a remedy. Despite challenges posed by a limited area and presence of a slope, PILLAR came up with a solution to convey the runoff and prevent damage from occurring again.

VDOT hired PILLAR to survey rest areas throughout Virginia, performing civil engineering duties to ensure ADA compliance.

Hired by the maintenance contractor of various rest areas managed by VDOT, PILLAR performed a facility condition assessment of the rest areas. The resulting repair list of deficiencies and safety issues was provided to the contractor before it entered into a maintenance contract with VDOT so that it was fully aware of the physical state of the facilities.

VDOT District 2 needed to identify where their stormwater basins were located, as well as determine whether or not they were in proper working condition. PILLAR was hired to condition assess the basins throughout the district. Work included locating the top of basins using handheld GPS devices, documenting deficiencies and required repairs, and rating the overall condition and functionality of the basins.

VDOT’s Safety Rest Area task order required the management of water and wastewater sanitary sewer systems on rest areas not on publicly served systems. PILLAR, assisted by Bowman Consulting, performed program project management and program services, including permit reviews, site evaluations and inspections of work performed by the maintenance contractor, compliance inspections, operations and maintenance support.