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Roads and Bridges Excavation

Serving Boulder, Longmont, Broomsfield and Gilpin County

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Roads and Bridges Excavation Services in Boulder, Longmont, Broomsfield and Gilpin County

At Mountain Contracting LLC, our roads and bridges excavation services create safe, dependable access to homes, ranches, subdivisions, and commercial properties across the Front Range and mountain communities. We excavate and grade private roads, access roads, and subdivision roads, and we prepare the ground for bridge abutments, approaches, and culvert crossings. With experience working on steep slopes, rocky terrain, and near creeks and drainages, we build roadbeds designed to handle heavy traffic, snowmelt, and Colorado’s changing seasons. Trust our experienced team to deliver roads and crossings that keep your property accessible year-round.

Benefits of Professional Roads and Bridges Excavation

A road or bridge is only as strong as the ground beneath it. Here’s what professional roads and bridges excavation delivers:

A Durable Roadbed: Proper excavation, base material, and compaction create roads that hold up to heavy vehicles and daily use.

Effective Drainage: Crowned surfaces, ditches, and culverts carry water off and under your road to prevent washouts.

Safe, Year-Round Access: Well-built roads stay passable for residents, deliveries, and emergency vehicles through every season.

Solid Bridge Foundations: Carefully excavated and prepared abutments and approaches give bridges and crossings a stable base.

Experience in Challenging Terrain: We know how to build on slopes, through rock, and around streams common in Boulder and Gilpin County.

Common Roads and Bridges Excavation Problems We Solve

Roads and crossings face constant wear from traffic, water, and weather. Here are some of the common problems our excavation work addresses:

  • Washouts and Erosion: Heavy rain and snowmelt can wash away road surfaces. We rebuild roadbeds and add drainage to prevent repeat damage.
  • Ruts, Potholes, and Soft Spots: These often signal a weak base. We excavate unstable material and rebuild with compacted road base.
  • Undersized or Failing Culverts: Culverts that clog or overflow can flood and destroy roads. We excavate, replace, and properly size crossings.
  • Unstable Slopes: Roads cut into hillsides can slump or slide. We regrade slopes and shape cuts to improve stability.
  • Deteriorated Bridge Approaches: Settling and erosion at bridge ends create dangerous drops. We excavate and rebuild approaches for a smooth transition.
  • Hard-to-Reach Properties: Remote and mountain properties often lack good access. We design and build new roads that open up your land.

 

If your road or crossing is showing any of these signs, professional roads and bridges excavation can restore safe, reliable access.

Frequently Asked Questions

We excavate, grade, and prepare a wide range of roads, including:

  • Private Roads: Shared or single-owner roads serving homes and properties.
  • Access Roads: Routes to building sites, utilities, and remote parcels.
  • Subdivision Roads: Roads serving new residential developments.
  • Ranch and Farm Roads: Durable roads for agricultural equipment and vehicles.
  • Road Repairs and Rebuilds: Regrading, drainage improvements, and base reconstruction for existing roads.

 

Each project is built around your property, traffic, and terrain.

Bridge excavation prepares the ground so a bridge or crossing can be built safely. Here’s what it typically involves:

  1. Site Assessment: Reviewing the crossing, soil conditions, and engineering plans.
  2. Abutment and Footing Excavation: Digging for the foundations that support each end of the bridge.
  3. Approach Grading: Shaping the road on either side for a smooth, safe connection.
  4. Drainage and Culverts: Installing culverts or channel work to manage water flow at the crossing.
  5. Backfill and Compaction: Placing and compacting material around structures for lasting stability.

 

We work alongside engineers and bridge builders to keep every crossing on track.

Often, yes. New roads, grading, and work near creeks, streams, or floodplains may require county permits and, in some cases, additional state or federal approvals. We’re familiar with local requirements across Boulder, Longmont, Broomfield, and Gilpin County and can help you understand what your project needs before we break ground.

Good drainage is the key to a long-lasting road. We crown road surfaces so water sheds to the sides, cut ditches to carry runoff away, and install properly sized culverts where water needs to pass under the road. Together, these steps help prevent washouts, potholes, and soft spots.

Timelines vary with the length of the road, the terrain, and the scope of work. Here’s a general idea:

  • Short Private Roads or Repairs: Often a few days to 1 week.
  • New Access or Subdivision Roads: Typically several weeks.
  • Bridge and Culvert Crossings: Anywhere from a few days to several weeks, depending on size and permitting.

 

Weather and permit approvals can also affect timing. For a more specific estimate, feel free to contact us!

 

Choose Mountain Contracting for All Your Roads and Bridges Excavation Needs!

For reliable roads and bridges excavation services in Boulder, rely on the skilled professionals at Mountain Contracting LLC. We are committed to exceeding your expectations and will handle your property with the highest level of care throughout the process. To learn more about how we can build safe, lasting access to your property, call us at 303-888-3580 or fill out our Contact Form to connect with our team.

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