Manhattan Tunnel — Trans-Hudson Connectivity
Civil and traffic engineering support for the fast-moving Design-Build effort connecting HYCC-3 to the Hudson River tunnel via twin tunnels under 12th Avenue.
Engineering · Robotics · Construction Management
Infrastructure engineering with a robotics advantage.
For 25 years, Gedeon GRC Consulting has planned, designed and delivered public infrastructure across New York, New Jersey and Texas — and pioneered drone and ROV inspection that takes people out of harm's way.
25+Years in practice
$650MLargest construction value
5Offices · NY / NJ / TX
8Engineering disciplines
01 / Capabilities
A full-spectrum infrastructure practice
From feasibility studies to resident engineering inspection — one accountable team, MBE/DBE/SBE certified.
01
Traffic & Transportation
Studies, simulation, signal design, ITS and MPT — HCS, Synchro, Vissim, Aimsun.
VIEW → 02Structural Design
Buildings, waterfront structures and special inspections engineered for durability.
VIEW → 03Bridge Engineering
Design, load rating and rehabilitation for highway, rail and pedestrian spans.
VIEW → 04Resident Engineering Inspection
On-site REI teams protecting schedule, budget and quality for public owners.
VIEW → 05Sustainability & Resiliency
Envision-aligned design, green infrastructure and climate-adaptive engineering.
VIEW → 06Drones / Robotics / UAV
Confined-space, aerial and underwater inspection with survey-grade data capture.
VIEW → 07Program & Construction Mgmt
Owner's-side management from procurement through closeout.
VIEW → 08Civil / Site Engineering
Grading, drainage, utilities and streetscapes for sites that work.
VIEW →02 / The robotics advantage
One operator above ground. Zero people in the sewer.
Our Flyability Elios 3 flies combined sewers, tunnels and vertical stacks while a single certified pilot monitors from the surface. LiDAR point clouds, thermal imaging and ultrasonic thickness readings — without a confined-space entry permit, and without putting a person at risk.
"Safety, efficiency, accuracy, affordability — robotics improves all four at once."
ELIOS 3SKYDIO X10DEEP TREKKER ROVTWIC-AUTHORIZED
03 / Selected work
Projects that move the region
Roseville Tunnel Rehabilitation
Lead civil engineer for the rehabilitation of a 1,000-foot early-1900s rail tunnel, most of it unlined with exposed rock, plus associated track-bed work.
NY State Route 110 Reconstruction
Planning and design services for the reconstruction of a critical Long Island arterial corridor.
Resorts World Casino — Aqueduct Redevelopment
Engineering for one of New York City's largest entertainment redevelopment sites at Aqueduct Racetrack.
04 / Trusted by public owners
NYS DOTMTAPort Authority of NY & NJNYC DEPNYC DDCNYC DOTNYC ParksNJ TransitNYC EDCSUNY Construction FundNassau CountySuffolk CountyCamden CountyDelaware River Port AuthorityCity of NewarkNYC SBSNYS DOTMTAPort Authority of NY & NJNYC DEPNYC DDCNYC DOTNYC ParksNJ TransitNYC EDCSUNY Construction FundNassau CountySuffolk CountyCamden CountyDelaware River Port AuthorityCity of NewarkNYC SBS
05 / Who we work with
Three ways firms like yours engage us
PUBLIC OWNERS
Agencies & authorities
On-call and project-specific engineering from a firm whose leadership has sat in your chair — including a former NYC DOT Commissioner. REI teams that protect your budget like it's their own.
GOVERNMENT HUB → PRIME CONSULTANTSTeaming partners
MBE/DBE/SBE participation with real technical scope — traffic, structures, REI, robotics — that strengthens your proposal score instead of just checking a box.
PROPOSE TEAMING → PRIVATE CLIENTSDevelopers & asset owners
Site engineering, traffic approvals and drone/ROV inspection for owners who need answers fast — no scaffolding, no shutdowns, no confined-space entries.
SEE ROBOTICS →06 / Certified partner
Built for public procurement
MBE, DBE and SBE certified. Members of ACEC, ASCE, ITE, DBIA and ISI. A 25-year record with the region's most demanding agencies — and a capability statement ready for your next solicitation.
MBEDBESBEACECASCEITEDBIAISI
Sustainability is structural here too: a UN SDG-aligned operations program since 2017, an Evertreen reforestation partnership, and World Monuments Fund collaboration on cultural preservation.