John Coffee Bridge Study

A long bridge with concrete supports across a wide body of water, with distant hills visible under a clear blue sky.

Owner: National Park Service   Scope of work: Concrete core sampling consisting of the extraction of a minimum of one core sample from the lower portion of each pier in the channel, below the waterline (36 piers anticipated to be in the water) Concrete core testing consisting of strength tests and concrete quality tests Engineering […]

Multi-Year Bridge Preservation Design

Cars drive on a multi-lane highway passing under a green bridge with a city skyline and clear blue sky in the background.

One of our public agency clients developed a well-planned and executed program to improve the serviceability of their aging highways and bridges. The goal of the program is to improve the condition and load-carrying capacity of state-owned bridges and culverts as well as extend asset service life to a minimum of 25 years. The early […]

MBTA Systemwide Bridge Inspection & Load Rating

A maroon and grey passenger train crosses the wooden trestle Chelsea Mill Creek bridge over water, with two workers standing near the tracks.

Collins continues to provide above and underwater bridge inspection and load rating services on MBTA’s Systemwide bridges to evaluate their condition and determine their live load carrying capacity. This important work supports MBTA to ensure the continued safe operation of their rail and transit network. All work has been completed in accordance with applicable MBTA, […]

MassDOT Chicopee Bridge Design

A green steel bridge crosses over a set of railroad tracks, with graffiti visible on the concrete supports and vegetation along the sides.

Collins was recently selected by MassDOT to lead the design of a superstructure replacement for the bridge carrying State Route 116 (Chicopee Street), over the CSX/Boston and Maine Railroad (BMRR). The project scope includes replacing the deficient steel girders and floor beams, plus upgrading the bridge cross-section to provide modern roadway safety, pedestrian, and bicycle […]

Route 33 Level I Load Ratings

Aerial view of a ROute 33 bridge crossing a wide river, with vehicles traveling on it and a small boat moving in the water below. Trees and buildings are visible in the background.

Collins recently completed Level I load ratings for Virginia Department of Transportation of the Route 33 bridges over the Mattaponi River (Lord Delaware) and the Pamunkey River (Eltham) within the Fredericksburg District. The team was led by Collins’ Virginia Beach office, in collaboration with the load rating experts from the Norwood, MA, and Chicago, IL, […]

Quaboag Street over Dunn Brook Substructure Rehabilitation

Concrete Brookfield bridge supported by round pillars and wooden cross-bracing, with rocks and water visible underneath the structure.

The bridge carrying Quaboag Street over Dunn Brook is a three-span concrete slab structure supported on timber pile bents. The bridge was closed due to twelve severely deteriorated timber piles. Collins assisted the Town of Brookfield in applying for MassWorks grant funding. Due to grant funding availability and the competitive nature of these grants, funds […]

North Blandford & Gore Roads over Tiffany Brook Superstructure Replacements

A concrete and metal bridge spans over a shallow creek with rocks and sunlight visible through nearby trees.

The bridges carrying North Blandford Road and Gore Road over Tiffany Brook required full superstructure replacement due to critical steel beam section loss. Work for each bridge included full superstructure and partial abutment removal to accommodate the placement of a new single-span steel multi-beam frame supporting galvanized steel deck planks, a reinforced concrete deck, and […]

Monterey Road over Hop Brook Bridge Design

A modern concrete bridge with metal railings spans over a calm body of water, with autumn trees and a cloudy sky in the background.

Collins Engineers, Inc. (Collins) was the prime consultant on the Massachusetts Department of Transportation-Highway Division contract for statewide design and review services, which included the full replacement of Bridge No. T-10-007 (08G) carrying Monterey Road over Hop Brook in Tyringham. Design and review services were performed in accordance with MassDOT’s Project Development & Design Guide, […]

Sadoga Road over Burrington Brook Bridge Design

A small stone-faced bridge crosses a shallow creek with rocks below, surrounded by green grass and trees, with a house and white fence in the background.

Collins Engineers, Inc. (Collins) was the prime consultant on the Massachusetts Department of Transportation–Highway Division contract for statewide design and review services, which included the full replacement of Bridge No. H-14-009 (0HU) carrying Sadoga Road over Burrington Brook in Heath. Design and review services were performed in accordance with MassDOT’s Project Development & Design Guide […]

Market & Everett Street Bridges Preservation/Rehabilitation

A pedestrian bridge under construction, with fencing, scaffolding, and incomplete sections above a roadway. Construction equipment and a fence are visible below.

Collins was the prime consultant providing engineering services for the bridge preservation of both the Market Street and Everett Street Bridges over I-90, the CSX/MBTA Railroad, and local roads in Boston, Massachusetts, as part of the MassDOT Statewide Bridge Preservation/Betterment Program. The work consisted of preserving the existing superstructure and substructure, including power washing the […]