Hoyle Tanner provided professional engineering services for the bridge replacement of twin 14’ diameter metal pipe culverts with a 75’ span NEXT Beam with integral abutments. Preliminary and final design services included: hydraulics, scour evaluations, habitat connectivity design, public outreach, bridge design, roadway design, and final plans, specifications, and estimate. The superstructure includes a bare concrete deck with integral wearing surface and a roadway width of 24’. A single lane temporary bridge maintains traffic during construction. The project also included several hundred feet of approach roadway reconstruction with improvements in the vertical alignment and roadside safety.
SERVICES
Final Design
Preliminary Design
Habitat Analysis
Hydraulic Analysis
Scour Evaluation
Alternatives Development & Analysis
Load Rating Analysis
From the blog
Learn about ongoing projects and the innovative processes we employ for our clients.
Construction is imminent for wastewater treatment facility (WWTF) upgrades at a small town in New Hampshire! With over 4,000 residents in Allenstown, upgrades may not seem as critical as...
Summer always seems to fly by, and summer 2025 was no different. Part of what accelerated the time for me was being involved in a fast-paced, interesting project for...
What drew you to Hoyle Tanner? I met Steph and Maggie at a networking event at my school where I had a really good conversation with them. I learned...
We’re proud to announce that David Jeffery and Tyler Heinrich have earned their Licensed Surveyor in Training (SIT) status in New Hampshire! David and Tyler are the newest additions...
BIM’s Importance Building Information Modeling (BIM) is a significant advancement in modern design and construction, and Hoyle Tanner is a leader in this design for wastewater facilities in New...
We are excited to announce that Structural Engineer Katie Welch has been appointed Director at Large for the Structural Engineers of New Hampshire (SENH) Board of Directors. The SENH...
At Hoyle Tanner, we have been deeply involved in the planning and design phases of the Millinocket Municipal Airport project. This project is a significant part of the town's...
Project Overview Hoyle Tanner is providing environmental engineering design and construction services for the Brighton Wastewater Treatment Facility (WWTF) upgrade. The Brighton WWTF operates a small lagoon system with...
Our team has been hard at work load rating bridges across Massachusetts. In simple terms, a load rating is an evaluation of a bridge to determine its capacity to...
