Coos Bridge Fracture Critical Member Inspection
Maine Department of Transportation
Coos Bridge Fracture Critical Member Inspection
Inspection of the Coos Bridge utilizing traditional inspection access such as under-bridge inspection vehicles or ladders was not possible due a 5-ton live load posting of the bridge and location in a deep valley. We utilized rope access techniques to provide the required NBIS Routine and Fracture Critical hands-on inspection.
The Coos Bridge is a 50’ long single span through girder structure built in 1919 consisting of two rolled shape girders, four rolled shape floor beams and timber stringers and deck. To provide access for our inspectors, we retained a subconsultant to provide rigging of the bridge for rope access and completed the NBIS Routine and Fracture Critical inspection during the month of February. The rope access allowed for close up and hands-on inspection of the fracture critical bridge in accordance with NBIS criteria while not impacting traffic across the bridge.
- NBIS Bridge Inspection
- Report Preparation
From the blog
Learn about ongoing projects and the innovative processes we employ for our clients.
Kayla Hampe Honored as One of WZID’s Top 20 Outstanding Women
April 18, 2025
With Kayla Hampe’s engineering acuity and her passion for service, it’s no surprise that she’s been honored as one of WZID’s 20 Outstanding Women for 2025! WZID’s recognition highlights...
Read More
Innovative Aviation Maintenance in Lincoln: Reduce, Reuse, Recycle
April 18, 2025
When pavement on an airport starts to deteriorate, the effects can be seen on the surface. But as any New Englander can attest to, especially during spring pothole season—pavement...
Read More
Katie Servis Joins Hoyle Tanner as Airport Planning Manager
April 16, 2025
We are thrilled to announce that Katie Servis has joined our Aviation Division as our new Manager of Airport Planning! Katie spent five years with Hoyle Tanner in the...
Read More
Engineering Across New England: What I’ve Learned Across Four States
April 11, 2025
As a junior engineer, I’ve had the opportunity to work on projects across the northeast and be exposed to the unique characteristics of highway design in each state. In...
Read More
National Walk to Work Day 2025: Promoting Sustainable Options
April 5, 2025
This year National Walk to Work Day fell on April 4th! In honor of promoting more sustainable options, communities are taking a more holistic approach to ensuring safe pedestrian...
Read More
Aidan Short Earns his PE
April 4, 2025
We’re proud to announce that Aidan Short has earned his Professional Engineering (PE) License in New Hampshire! Aidan has been a valued member of our team for the past...
Read More
Vernal Pools: One Way the Coming of Spring Affects Environmental Permitting
April 2, 2025
Spring is just around the corner! Temperatures are finally climbing above freezing, and patches of bare ground are showing up all over our communities. When we emerge outside from...
Read More
April Employee Anniversaries
April 1, 2025
We are pleased to announce the following employees are celebrating employment anniversaries this month; combined, they have 112 years at Hoyle Tanner. The effort and dedication of our employees...
Read More
Employee Spotlight: Maggie Paratore
March 30, 2025
Meet Maggie Paratore - Transportation Engineer & Lifelong Creative What drew you to Hoyle Tanner? I first heard of Hoyle Tanner when I had the opportunity to speak to...
Read More