As a subconsultant to Kimley-Horn and Associates, Inc., Alpha & Omega Group designed and prepared construction documents for a pedestrian timber boardwalk beneath an approach span of the Heide Trask Drawbridge in Wilmington, NC. The walkway connects to the Gary Shell Cross-City Trail and is a safety feature to prevent pedestrians and bicyclists from having to cross five lanes of traffic on the west side of the drawbridge.

A&O’s work included the structural design of approximately 192 linear feet of timber boardwalk, one timber octagonal overlook without cover and a two-span pre-stressed, pre-cast concrete bridge supported on reinforced concrete caps and micro piles.

A&O provided structural engineering, geometric layout, data collection and field investigation/reconnaissance for the design of the proposed structures. We consulted a geotechnical engineer for foundation recommendations for bridge and boardwalk loads, submitted general drawings for review and approval, and provided final construction documents for the timber boardwalk and concrete bridge. We also provided construction administration services to complete the bridge.

Overview
  Client:

  City of Wilmington
Location:

Wilmington, NC
Prime constultant:

Kimley-Horn
Contact:

Amy Kimes

Construction Project Manager

(910) 473-5130
Professional fees:

  $17,000
Construction fee:

 $4,965
Start/completion:

  2/2014 – 4/2018
Project manager:

    Glenn Zeblo, PE
Construction administration:

  Forrest Robbins

  Experience
  Pedestrian bridge design
Overlook design
Field investigation
Construction documents
Construction administration

  