HighSpans Engineering, Inc.

and design services for transportation systems, water control, and specialized municipal structures.

• Major Bridge Design

  Designing construction, rehabilitation, widening, or lengthening of structurally continuous concrete superstructures, post-tensioned substructures, and segmental bridges.

• Minor Bridge Design

  Engineering services for water control structures, small to large bridges, traffic structures, retaining walls, and maintenance of traffic (MOT) plans.

• Miscellaneous & Traffic Structures

  Structural design for sound barriers, sound walls, luminaries, traffic signals, and structural supports for overhead sign structures, including foundation designs.

Civil and highway design engineering encompassing roadway widening, geometry, drainage systems, utility coordination, and permitting.

• Roadway and Highway Design

  Experience covering new and widening roadways, geometric design, turn lanes, drainage, and temporary traffic control.

• Facilities Design

  Engineering design for civil structural and utility facilities.

Comprehensive traffic operations design and analysis to guide road users and enhance intersection safety.

• Signing, Pavement Marking and Channelization

  Design and preparation of construction plans for roadway signing, pavement marking, channelization devices, and support structures.

• Signalization

  Traffic signal design, specifications, capacity/LOS calculations, signal operating plans, and timing calculations.

• Traffic Signal Timing

  Signal timing studies, capacity operations, and retiming calculations.

Subsurface investigations, soil analysis, and foundation recommendations for infrastructure projects.

• Soil Exploration

  Field exploration and subsurface geotechnical investigations.

• Geotechnical Classification Lab Testing

  Laboratory testing of soil and rock materials.

• Foundation Studies

  Engineering studies and design recommendations for deep and shallow foundations.

Highway materials testing and construction inspection.

• Highway Materials Testing

  Certified testing of construction and roadway materials.

• Construction Materials Inspection

  On-site testing and quality control for structural and roadway materials.

Construction administration, engineering, and quality assurance inspections for roadway, bridge, and materials projects.

• Roadway Construction Engineering and Inspection

  Quality assurance and engineering oversight for highway and roadway construction.

• Minor Bridge and Miscellaneous Structures CEI

  Inspection services for short-span bridges, retaining walls, and civil structures.

• Major Bridge CEI

  Construction engineering and inspection specializing in concrete bridge superstructures.