Deer Creek Reservoir

A large crane on a floating barge is positioned on a river surrounded by hills under a partly cloudy sky.

Scope: Oversight of construction quality management for installation of a new water intake Installation of a soil nail wall Writing quality control management plan and a commissioning plan Design for a mechanically stabilized earth (MSE) wall Design for interior shoring of a concrete utility tunnel  

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 […]

MBTA Earth Retaining Structure Inspections

Two workers in reflective vests and helmets stand beside wet train tracks under an overpass, inspecting the concrete retaining wall.

One of the first state agencies in New England to initiate an earth retaining structure (ERS) program, the MBTA chose Collins to jumpstart this endeavor with compiling a systemwide ERS inventory. The scope of services involved developing program guidance, creating an inventory item list and data collection spreadsheet, and providing all associated project management, planning, […]

MassDOT Ancillary Structure Inspection

Highway exit signs for I-495 North to Salisbury, Marston St, Merrimack St, and Commonwealth Dr; construction truck and cones on the right shoulder.

As prime consultant, Collins has worked on two consecutive MassDOT ancillary structure inspection contracts that have included the inventory, field inspection, non-destructive evaluation and condition evaluation reporting of highway signs, ITS, signals, and lighting structures throughout the Commonwealth. To date, Collins has completed the inventory, inspection, and non-destructive evaluation of over 7,700 ancillary structures for […]

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 […]