Modern fleet. Engaged leadership. Heavy construction.

From municipal infrastructure to commercial site development, our work reflects 35+ years of combined experience — with ownership in the field on every project we put our name on.

What We Self-Perform

Work delivered under one roof.

Modern, well-maintained equipment. In-house machine-control modeling. Ownership engaged from estimate through punch list — across school, commercial, municipal, and industrial work.

Site Preparation

  • Clearing & grubbing
  • Demolition
  • Mass & rock excavation
  • Cut/fill grading
  • Structural fill & compaction
  • Erosion & sediment control
  • Fine grading to spec

Underground Utilities

  • Trenching & shoring
  • Water main & services
  • Sanitary sewer & manholes
  • Stormwater & structures
  • Box culvert installation
  • Connection to existing systems

Roadway & Paving

  • Subgrade preparation
  • Subbase & base course
  • Curb & gutter coordination
  • Roundabout construction
  • Parking lot construction
  • School & campus sitework

GPS & Technology

  • 3D machine-control models
  • Trimble® machine-control platform
  • On-site GPS support
  • Layout from 3D model
  • 2 mm tolerances achievable
  • Quality control & as-builts
Project Index

Browse our work.

Oklahoma work first — switch tabs for our New York history.

Case Studies

A closer look at each project.

Oklahoma

JL Earthworks & Design LLC · 2024–present
GPS Modeling & Design-Build

Victory Park

Tulsa, OK · 2026 (current)

GPS modeling and design-build sitework for the Victory Park development at Victory Christian Center in Tulsa. Our team built the 3D finished-grade machine-control model from the civil design — building pads, drives, and the detention pond shown below — giving GPS-guided equipment surfaces to cut to, without stakes.

Victory Park full-site 3D finished-grade machine-control model Victory Park civil design site plan
School & Civil

Collinsville 5th Grade Center

Collinsville, OK · 2026 (current)

Site preparation, foundation excavation, and civil infrastructure work for a new fifth-grade education center in Collinsville. Multi-phase project including pads, utilities, and site coordination with the general contractor.

Collinsville 5th Grade Center foundation aerial Collinsville site foundations aerial Collinsville site progress
School & Civil

Owasso 5th Grade Center

Owasso, OK · 2026

Building pad grading, storm drainage, and utility installation at the Owasso 5th Grade Center site.

Aerial of graded building pad beside Owasso school campus Top-down view of stripped, graded site next to school building Aerial of school campus, new gravel lot, and excavator trenching
School & Civil

Ag & JROTC Building

Oklahoma · 2026

Mass grading and building pad construction for the new Ag & JROTC Building.

Aerial of graded building pad with excavator beside school stadium Top-down aerial of cleared pad, excavator, dozer, and gravel stockpiles Steel building frame under construction on freshly prepared school site
School & Civil

Glenpool High School

Glenpool, OK · 2026

Pavement demolition, grading, and new striped parking lots at Glenpool High School.

New striped parking lot filled with cars at the sports arena Angled aerial of the finished parking lots across the campus intersection High aerial of completed parking lots and new campus construction
School & Civil

Glenpool Press Box

Glenpool, OK · 2026

Excavation, utility trenching, and site grading around the new press box at the Glenpool stadium.

Aerial view of Glenpool stadium field and new press box tower Drone view of press box, bleachers, and open earthwork trench Top-down view of excavator grading soil beside stadium building
School & Civil

Clyde Boyd Middle School

Sand Springs, OK · 2026

Earthwork, grading, and storm utility work for additions at Clyde Boyd Middle School.

Aerial of red dirt earthwork between buildings at school campus Top-down view of graded red dirt with storm piping staged
Site Development

Kratos

Bristow, OK · 2026

Mass grading, haul roads, and building pad construction for the Kratos project.

Wide aerial of mass-graded red dirt site with building pad Aerial of graded building pad with slab and staged steel
Site Development

Crisis Shelter

Oklahoma · 2026

Grading, storm drainage structures, and concrete drives and parking for the Crisis Shelter site.

Wide aerial of shelter campus with new concrete drives and parking New concrete entrance drive and parking loop at the shelter Graded drainage area with concrete headwall behind the shelter campus
Commercial

Jack Wills Design Studio

Oklahoma · 2026

Finish grading, concrete paving, and curved walkway hardscapes at the Jack Wills Design Studio site.

High aerial of Jack Wills building, new paving, and graded site Curved concrete walkways and boulder landscaping fronting the design studio
Commercial

MCN Visitor Center

Oklahoma · 2026

Site grading, concrete drives, and parking paving for the MCN Visitor Center.

Aerial of green-roofed visitor center and new drives beside highway Drone view of visitor center building, parking lot, and curbs
Commercial

ASCO Project

Oklahoma · 2024

Site work and concrete paving for the new ASCO equipment dealership yard.

ASCO dealership entrance with flags and fresh concrete paving Wide concrete yard with equipment lineup at the ASCO dealership
Site Development

Catoosa Child Development Center

Catoosa, OK · 2024

Full site development for a new child development center in the Tulsa metro area. Mass excavation, fine grading, structural fill, and site preparation across a large commercial parcel with adjacent retail visibility.

Aerial of the completed Catoosa Child Development Center with its new drives and parking Fine-graded building pad seen from above at Catoosa Child Development Center

New York

JL Excavation LLC heritage · 2017–2023
Municipal Infrastructure

Waste Water Treatment Plant

Lowville, NY · 2023

Earthwork, liner installation, and supporting utility infrastructure for a municipal waste water treatment facility.

Excavated treatment-lagoon basin at the Lowville Wastewater Treatment Plant in late-afternoon light Lined lagoon edge and header piping on an overcast day at the Lowville WWTP Rough-graded ground beside the treatment lagoons on a foggy morning at the Lowville WWTP
Site & Utility

YMCA Natatorium

Watertown, NY · 2022

Site preparation and underground utility installation for a YMCA natatorium expansion, including parking lot work and stormwater.

Completed site work, walkways, and accessible parking at the Watertown Family YMCA natatorium Crew setting a precast manhole inside a trench box during YMCA utility work Deep excavation along the building foundation at the YMCA natatorium expansion
Roadwork

Tupper Lake Rd Paving

Tupper Lake, NY · 2022

Full-depth road reconstruction and paving for a municipal street in the Adirondacks.

Dozer spreading new gravel base on Tupper Lake Road, with cones and a flagger guarding the trench Crew laying geotextile fabric in the road trench as an excavator and dump truck work alongside New asphalt strip along the curb and sidewalk on Tupper Lake Road
Infrastructure

JCC Infrastructure Improvements

Watertown, NY · 2021

Campus infrastructure improvements at Jefferson Community College — new roads, roundabout, utilities, and stormwater management.

New concrete curb set on a crushed-stone base at Jefferson Community College Excavated pit around a concrete utility structure at Jefferson Community College Geotextile fabric and crushed stone placed for new campus roadwork at Jefferson Community College
Site Development

Carthage High School Parking Lot

Carthage, NY · 2017

New parking lot construction including grading, drainage, paving, and striping for a public high school.

Cat dozer with GPS masts and an excavator tearing out old asphalt in the Carthage High School parking lot Crew rolling out geotextile fabric over the graded subbase of the Carthage High School parking lot Fresh asphalt on the rebuilt Carthage High School parking lot after a rain shower
Utility & Roadwork

Tigris Rd Reconstruction

Fort Drum, NY · 2017

Underground utility installation with trench shoring, road reconstruction, and final paving for a military base.

Crew setting a trench box for a deep utility crossing on Tigris Road at Fort Drum Graded subgrade with a gravel drainage trench and PVC cleanouts along Tigris Road New asphalt, striping, and a new light pole on the reconstructed Tigris Road

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