Services We Offer
Underground Utilities
- Sanitary sewer – gravity and force main
- Water Main Systems
- Storm Drainage Systems
- Utility Conduits
- Deep Utilities - SOE
- Jack and Bore
- Directional Drilling
- Pump Stations
- Utility Relocations
- Emergency Response

Stormwater Management
- Stormwater Management, Ponds and Basins
- Bioretention
- Submerged gravel Wetlands
- Underground Detention Systems

Erosion and Sediment Control
Our team takes pride in maintaining excellent relationships with the regulatory agencies and inspectors that oversee our projects. These relationships and our reputation allow us to take a proactive, cost effective approach toward the establishment and maintenance of our erosion and sediment control measures. Having worked on numerous projects with varying degrees of difficulty and wide ranging requirements, our team is able to analyze your site and provide constructive feedback in both the design and construction phases. We keep your project in compliance, meeting and often exceeding agency requirements.
- Sediment Basins and Traps
- Active Controls
- Stabilization
- Water Conveyance
- Dewatering

Earthwork and Grading
The Mid-Atlantic region often produces sites with problematic soil compositions. These conditions can negatively impact the project schedule and budget if left to inexperienced contractors. OLC takes pride in working collaboratively with your geotechnical team to develop cost-effective solutions to remediate soil issues on even the most difficult sites.
- Mass Excavation
- Fine Grading
- Sourcing Import to Satisfy Project Deficits
- Export of Excess and Unsuitable Materials
- Contaminated Material Remediation

Stream Restoration
Stream restoration and wetland mitigation work are becoming more prevalent on projects throughout the Mid-Atlantic region. Our attention to detail and expertise ensures that you and the approving agencies will be delighted with our stream restoration and wetland mitigation work.
- Stream Restoration
- Wetland Mitigation
- Coastal Plain Outfalls
- Reforestation
- Wetland and Riparian Stabilization and Landscaping

Mass Clearing
- Select Demolition
- Clearing
- Underground Utility Demolition
- Pavement Reclamation and Removal
- Reuse, Recycling, and Salvaging of Onsite Materials

Structural Concrete
- Anchored Retaining Wall
- Gravity Retaining Wall
- Piling Wall
- Cantilevered Wall
- Cast-In-Place Concrete
- Precast Block
- Structural Cast-In-Place Concrete
- Precast Box Culvert Installation
