Penobscot Narrows Bridge
PHOTO COURTESY OF MAINE DOT
PHOTO COURTESY OF MAINE DOT
PHOTO COURTESY OF MAINE DOT
PHOTO COURTESY OF MAINE DOT
Prospect-Verona Island, Maine
Fall 2003 – Winter 2004
The client: Maine Department of Transportation
The project: A new 2,119-foot cable-stay bridge and approaches to replace a 1931 bridge, which connects the town of Prospect to the island communities of Verona and Bucksport, Maine. The new bridge includes two towers – both rise 420 feet above the water – and an observatory. The $84 million project progressed from conception to completion in just 42 months, putting tremendous pressure on the mapping, surveying, and design phases.
Our work: An integral part of the first phase of this project, Kappa Mapping produced engineering-grade mapping of 1”=50’ with 1’ contours so Maine DOT engineers and consultants could begin the complicated process of designing and building the new bridge and bridge approaches around the existing bridge – while keeping it open to traffic.
We orthorectified the images using the compiled digital terrain model and mosaicked the ortho images into a seamless, color-balanced image. Since late fall color photography often presents challenges – dull colors and long shadows created by the sun’s low angle – Kappa used sophisticated image enhancement technology to bring out detail in shadows and to intensify colors.
