SERVICES STRUCTURE SAFETY INSPECTION


 

  • NBIS Inspection of Bridges, Culverts, and
    Pipe Structures
  • Condition Evaluation of Metal Traffic Signal Poles and Overhead Sign Structures
  • Detailed Inspection Reports in Conventional
    or Electronic Format
  • Bridge Load Rating Based on ASD, LFD, and LRFR Code Requirements


Structure Safety Inspection

Our NHI trained, FHWA certified inspectors have evaluated thousands of bridges in North Carolina and beyond. Our detailed inspection reports and in-depth load capacity ratings provide critical information for management of state, municipal, or private structure inventories. Example projects highlighting recent staff experience are shown below.

Routine Inspection of the Virginia Dare Bridge (Dare County, NC)

bridgeSafety1In February 2008, MI Engineering staff working for Ko & Associates, PC led a team inspecting the Virginia Dare Bridge carrying US 64/264 over the Croatan Sound. Tasks associated with the project included a comprehensive field inspection, detailed inspection report including schematics of every span and substructure unit, and load capacity rating of prestressed and post-tensioned girders.
The bridge consists of 265 spans, 107 approach spans on the west side, 32 main channel spans, and 126 spans on the east side, for a total length of 6,914 meters (22,684 ft). The approach spans consist of cast-in-place reinforced concrete deck on precast prestressed deck panels supported by Type IV AASHTO precast prestressed concrete girders. The main channel spans consist of prestressed bulb tees and post-tensioned spliced girders.

Routine Inspection of the Neuse and Trent River Bridges (Craven County, NC)

bridgeSafety2In October 2003, MI Engineering staff working for Ko & Associates, PC led a team inspecting the Neuse and Trent River Bridges and the US 70 / US 17 interchange structures in Craven County, North Carolina. The contract included 17 structures (16 bridges and one culvert) and was the first ever consultant-led inspection of the complex interchange and nearly 2-mile long channel crossing.
The project included inspection and load rating analysis of the bridges, including the 10,000 ft long main bridge (half steel plate girders and half prestressed bulb tees) as well as all of the ramp bridges for the interchange over the river.

Metal Traffic Signal Pole Inspections

bridgeSafety3MI Engineering inspectors have been involved in the NCDOT Traffic & Signals Division program to inventory and evaluate the state-owned metal traffic signal poles, including strain poles and mast arms since the program’s inception in 2003.
While at Ko & Associates, PC members of our staff were involved in the inspection of more than 600 poles in Durham, Wake, Cumberland, and Franklin Counties. Tasks associated with the project included verifying inventories, performing field inspections, producing detailed inspection reports, and making maintenance recommendations.