Bridges & Structures

City of Wilmington Bridge Replacement

Bridges & Structures


Identifying the Specifics for a Cutting-Edge Design

At Quigg Engineering Inc., our team of structural and hydraulic engineers collaborates closely with clients to assess and comprehend their project limitations, objectives, financial plans, and deadlines. We are dedicated to grasping and fulfilling your project needs. With vast expertise, our structural engineers specialize in the design and inspection of various structures, including highways, railroads, pedestrian walkways, utility installations, and more.

Structural Design Capabilities

Our structural engineers possess additional skills such as conducting bridge inspections and providing rating services. Our team is comprised of NBIS-trained personnel who conduct thorough inspections on a variety of bridges, from typical ones to major river crossings. We offer comprehensive bridge load ratings for various structure types, utilizing methods such as ASD, LFD, LRFD, Special Design Vehicle, Legal Loads, and Permit Loads.

We currently have 4 licensed SE’s on our team.

At Quigg Engineering, we provide the following structural services:

  • Retaining Wall Design
  • Soil Retention System Design (Temporary/Permanent)
  • Box Culverts & Drainage Structures
  • NBIS Bridge Inspections
  • Pump Stations
  • Traffic Structures, Light Standards, Signals & Overhead Signs
  • Low Rise Building Design
  • Foundation Design for Signs, Tanks, Storage/Mixing Bins
  • Storm Water Hydraulic Analysis
  • Inlet & Storm Sewer
  • Hydraulic Design of Bridge Structures

Bridge Planning & Design

  • Interstate Highways
  • Local Roads
  • Railroads
  • Pedestrian Structures
  • Grade Separations
  • Waterway Crossings

Witness the Future of Bridges & Structures

Looking ahead, as bridge construction and maintenance challenges evolve, it’s crucial to proactively address them. Future bridges will likely handle heavier loads and have longer lifespans, demanding prudent and timely decisions regarding maintenance. Sensible decisions about structure replacements can also save our clients money and time. Embracing emerging technologies and sustainable practices will be key. At Quigg Engineering Inc., we’re committed to staying ahead of these trends, ensuring cost-effective solutions that prioritize safety and sustainability for future infrastructure needs.

– Robert Whiteside, PE, SE, Bridges & Structures Project Manager