Solutions From Concept To Completion
Structural Engineering
Site Solutions From Concept To Completion
Civil Engineering
Solutions Where Land Meets Water
Marine + Coastal
Solutions From Procurement To Completion
Construction Engineering
Structural + Mechanical Specialists
Entertainment Engineering
Consultation, Design + Inspection
Facade + Building Envelope
Soil + Foundation
Geotechnical Engineering
Investigation + Litigation Support
Forensic Engineering
Arts + Entertainment
Live Performances
Museums + Art Displays
Pop-Ups
Signage
Studios + Sound Stages
TV + Film Production
Theaters
Theme Parks + Playplaces
discover
Education
Colleges + Universities
Private + Specialty Schools
Public K-12
discover
Energy
Solar Energy
Transmission Infrastructure
Wind Energy
Oil + Gas
discover
Government
Municipal
State
Federal
discover
Healthcare
Senior Care
Hospitals
Outpatient Facilities
discover
Industrial
Heavy Industrial
Warehouse + Distribution Centers
Industrial Ports + Terminals
discover
Ports + Coastal
Berths, Piers + Wharves
Bulkheads
Esplanades
Ferry Landings, Ship Terminals
Floating Structures
Ports + Terminals
Marinas + Breakwaters
Transfer Stations
discover
Public Infrastructure
Bikeways + Trails
Garage + Parking Facilities
Park + Recreational Spaces
Streetscapes
Utility Infrastructure
Water + Wastewater
discover
Real Estate Development
Commercial
Community Facilities
Mixed-Use
Multifamily Residential
discover
Transportation
Airports
Bridges
Ports + Terminals
Rail Transportation
Roads + Highways
Ropeway + Linear Infrastructure
discover
Floating Harbor Wetland
Multimodal Processing Plant
416 + 420 Kent Dynamic Highrise
Wittpenn Bridge
Tiffany Crane
LaGuardia Airport Terminal B
NYC Ferry
Orlando Airport LED Displays
A leading full-service engineering firm renowned for our trusted, high quality, and innovative approach to solving complex challenges.

Grassy Point Road Bridge Replacement

Upon McLaren Engineering Group’s inspection of Grassy Point Road Bridge, also known as Beach Road, over Minisceongo Creek in the Town of Haverstraw in Rockland County, New York, it was discovered that a complete replacement of the bridge was vital to mitigate safety concerns for motorists, cyclists, and pedestrians. Working with the County of Rockland, McLaren engineered a modern bridge design loaded to meet all standards for New York State including HL-93 loading.

Grassy Point Road Bridge Inspection

The bridge inspection performed by McLaren revealed concrete spalling and delamination along the bridge fascia. Additionally, it showed concrete spalling undermining the railing supports and severely corroded girders. This included significant girder bottom flange deterioration. The deterioration and deficiencies discovered resulted in the structure having a reduced weight limit.

Bridge Replacement

Grassy Point Bridge is part of New York State Bicycle Route 9, that runs from Central Park in NYC all the way to Canada. The steel multi-girder bridge was designed to carry, two 11-foot wide vehicle lanes with 4-foot wide shoulders. The single span modern structure capable of carrying all legal loads rests on abutments supported by micropiles.

The McLaren Difference: Applied Ingenuity

In lieu of a typical public information meeting and in response to the COVID-19 pandemic, McLaren worked with the client to provide a mechanism for public review for this federally funded project. The project plans and alternatives were made available online for review with public comments, concerns, and suggestions.

Since the new Grassy Point Road bridge is built adjacent to the existing bridge, McLaren found the original concrete abutments could stay in place as is and didn’t interfere with the new design, saving the project time and money.

Design Model

To show the client a 360-degree detail and structural analysis of the bridge replacement, McLaren prepared a preliminary design model in LEAP Bridge Steel.

Utility Infrastructure

One of the central challenges revolved around the intricate task of seamlessly integrating the new bridge within the existing underground utility infrastructure. To solve for this, McLaren’s innovative design enabled the bridge abutments to extend over a 42-inch sewer line that traverses the Minisceongo Creek and closely mirrors the alignment of the bridge itself.