Based in Lincoln, NE · Working nationwide · Est. 2023
We build what
the city never
sees.
Owner-operated underground utility construction for municipal, commercial and residential work — bored, trenched, tested and restored by the same crew that bid it.
01 — Services
Full-scope underground utility work
Self-performed with our own drill, vacuum excavator and reel trailers, licensed operators and locate-compliant field procedures.
Directional Boring (HDD)
Trenchless crossings under streets, driveways, sidewalks and yards on a three-drill Vermeer fleet. Pilot bore, ream and pullback with tracked steering.
Bentonite mixing, spoil containment and daily bore logs on every shot.
Trenching & Excavation
Open-cut installation to depth with engineered shoring, benching and trench boxes per OSHA Subpart P.
Grade control, select bedding and compaction back to spec.
Water & Sewer
PVC, HDPE and ductile iron mains and service laterals, valves and manholes installed to city and NDEE standards.
Pressure testing, chlorination and as-built tie-in records.
Storm Sewer & Drainage
RCP and HDPE storm lines, inlets, area drains and culverts set on grade.
Erosion control and post-construction site drainage correction.
Fiber & Electrical Conduit
Innerduct, HDPE and PVC conduit, pedestals, handholes and vaults with tracer wire, drop placement and line pulls.
Mandrel-proofed, rodded and roped, ready for the splice crew.
Vacuum Excavation & Potholing
Our Ditch Witch vacuum excavator daylights live utilities without damage — test holes, potholing and SUE support.
Documented depths and offsets, plus safe crossings at every conflict.
we own & run
02 — Why Us
Bid it once. Built by the owners.
- Licensed & insured. Registered Nebraska contractor — NE Contractor Reg. #60032-25.
- Owner-operated since 2023. The people who quote your job are the people running the drill.
- Equipment we own. Three Vermeer drills, a Ditch Witch vacuum excavator, reel trailers and service trucks.
- 811 locate compliance. One-Call tickets, white-lining, positive response verification and daylighting before we dig.
- Restoration done right. Compaction, patch, topsoil, seed and sod.
- We travel. Crews and drills mobilize nationwide for multi-state and long-run projects.
03 — Who You're Hiring
Joseline & Mario
Joseline and Mario learned this industry on the machine, in the mud, on somebody else's schedule, in every kind of weather this country throws at a crew.
They built JMM Underground around a simple rule: do the work right the first time, and stand behind it when nobody's watching.
When you hire JMM, you get the owners — not a dispatcher or a subcontractor you've never met.
04 — In The Field
Recent work
Real photos from our own jobs.
05 — Contact
Questions or concerns?
Residents can create a service ticket for questions, concerns or follow-up about work in their area.
- Phone
- (531) 310-6321
- Service area
- Nationwide — based in Lincoln, Nebraska
- Hours
- By appointment — call or create a ticket