Gas carrier under US-287 at Longmont
CDOT bore-and-jack with steel casing — MOT plan and Xcel/LPC coordination.
Longmont, CO · Boulder County
Auger Boring / Jack & Bore in Longmont, CO
Auger boring in Longmont for gravity sewer and gas crossings under US-287 and St. Vrain levee structures — cased pushes through Boulder County clay and agricultural-edge sandy loam.
Auger Boring / Jack & Bore in Longmont, Colorado
Auger boring in Longmont drives steel casing for gravity sewer, gas carrier, and drainage conduit under US-287, St. Vrain Creek levee roads, and Hover Road without disturbing embankments. Boulder County clay on central grids runs predictably; sandy loam on east agricultural-edge expansion zones requires attention to collapse ahead of the auger head.
CDOT US-287 templates specify bore-and-jack for active utility crossings — engineered submittal, casing diameter, and annular grouting specs scoped upfront. LPC distribution corridor bores require utility clearance in addition to CDOT and 811 processes.
St. Vrain levee bores require floodplain awareness and grade engineering beyond standard county ROW.
Longmont projects
Local Auger Boring / Jack & Bore Scenarios
Real Boulder County angles — not generic statewide copy.
Gravity sewer under St. Vrain levee road
Grade-controlled bore with floodplain awareness and Army Corps coordination.
Drainage crossing under Ken Pratt Boulevard
Boulder County clay — auger bore maintains grade for storm outfall through retail corridor.
LPC duct crossing under Old Town street
LPC coordination and 811 clear — cased bore for electrical carrier under narrow historic right-of-way.
How Auger Boring / Jack & Bore Works in Longmont
Longmont auger boring starts with CDOT or city ROW confirmation, 811 clear, and LPC coordination before casing enters ground. Boulder County clay on central grids runs predictably — east-side sandy loam requires collapse attention. Grade laser-set before launch pit opens.
Soil & Geology — Boulder County
Boulder County clay, St. Vrain Creek alluvium, and sandy loam on east-side agricultural-edge grids.
Longmont bores hit clay in Old Town and central grids, St. Vrain alluvium near the creek, and sandy loam on east subdivision edges. Municipal electric along many corridors requires extra pothole discipline.
Weather & Scheduling
Northern Front Range hail and spring St. Vrain runoff push Longmont crews to plan mud programs and pit shoring for creek-adjacent alignments.
Spring St. Vrain runoff raises groundwater on creek-adjacent jobs. Summer hail affects exposed east-side pads. Winter freeze-thaw on clay affects pit shoring on Old Town shots.
811 Locates & Permits in Longmont
City of Longmont Public Works, Boulder County ROW, CDOT US-287 relocations, St. Vrain floodplain on east alignments.
City of Longmont Public Works and LPC handle permits; Boulder County ROW on edges. CDOT US-287 controls state bores. St. Vrain floodplain work may need additional review. LPC coordination is required before boring near distribution lines.
Trenchless vs Open-Cut Here
US-287 cutting is a CDOT non-starter for active utility crossings — bore-and-jack required. Open-cut fits off-highway Longmont grids where grade tolerance and staging room allow.
Casing size, drive length, pit depth, groundwater, rail or highway flagging, and welding inspection.
How we work
Our Process for Longmont Auger Boring / Jack & Bore
Scope & Site Walk
You share plans or describe the problem; we confirm alignment, depth, access, and which trenchless method fits Colorado soils.
811 Ticket & Marks
Colorado 811 ticket filed; wait period before pits open unless your permit path differs. We pothole where marks conflict.
Profile & Permits
Bore plan, CDOT or city ROW permits, railroad agreements, and crossing engineering when the path leaves private property.
Rig Mobilization
Compact spread for tight Boulder lots; larger HDD for I-25 or I-70 relocations — matched to length and diameter.
Pilot & Ream
Steered pilot on design line, ream passes sized for your pipe or casing, fluid program tuned for clay or sandstone.
Pullback & Install
HDPE fusion, steel casing, or multi-duct bundle pulled with tension and bend-radius monitoring.
Test & As-Built
Pressure test, mandrel, or survey records for owners, inspectors, and operators as spec requires.
Restore & Closeout
Compact pits, replace sod or hardscape per scope, leave 811 ticket and locate map in your project file.
FAQ
Auger Boring / Jack & Bore in Longmont — FAQ
When is auger boring required vs. open-cut in Longmont?
CDOT US-287 templates require bore-and-jack for active utility crossings.
LPC coordination for auger boring in Longmont?
Yes — LPC clearance required in addition to CDOT and 811 on LPC corridor bores.
St. Vrain levee auger bores?
Grade-controlled with floodplain permits and Army Corps awareness.
Do you handle CDOT permit submittals for US-287 Longmont?
Yes — engineered submittal, inspection coordination, documentation.
Do you mobilize to Berthoud and Mead for auger boring?
Yes — Boulder/Weld County border mobilization.
Directional Boring Colorado
Free Auger Boring / Jack & Bore Quote in Longmont
24/7 — Emergency dispatch statewide. Tell us entry, exit, pipe size, and county — a bore specialist calls back with cost drivers, not a flat rate.
- Free alignment review
- Colorado 811 on every job
- Licensed spreads statewide
- 24/7 emergency line
Scope your alignment
Send bore path details
Step 1 of 2 — path, pipe, and city first