Client: Cascade Natural Gas
Location: Whatcom County, WA
- Civil Engineering
- Land Surveying
The need for this project arose when Whatcom County initiated a plan to replace the bridge on Peace Portal Drive over Dakota Creek. The existing Cascade Natural Gas main was supported on the old bridge deck. The topographic survey of the area, the design of the gas replacement, and acquisition of permits all had to be completed in short order so that the bridge construction would not be delayed.
This project included conducting complete field topographic survey of the project area including detailing the tidally influenced stream bed, bridge structure, and roadway. We then prepared the design plans to detail the proposed construction of a new 6” diameter steel gas main. Additionally, MacKay Sposito prepared drawings for use in obtaining the stream crossing permits. We prepared completed legal descriptions and drawings for a new DNR lease for the gas main through the stream bed.
Deliverables included a complete set of construction documents with plan and profile, connection details, and quantities. The project plans were delivered in time for the permits to be obtained, and construction of the gas main was completed before the bridge was demolished.