At Roaming Bison, we build retaining and structural walls to engineered specifications to ensure safety, longevity, and compliance with local codes. Whether the project is a functional retaining wall for slope stabilization or an aesthetic terraced landscape, our approach follows engineered plans and industry best practices every step of the way.

What "built to engineered spec" means

• We follow stamped design documents: Walls are constructed according to plans and details prepared or approved by a licensed civil or geotechnical engineer. These documents specify materials, dimensions, reinforcement, drainage, and acceptable tolerances.

• Structural intent is honored: Load-bearing requirements, soil pressures, surcharge allowances, and any required seismic or frost considerations are implemented exactly as designed.

• Materials and components meet spec: Masonry units, segmental retaining wall blocks, poured concrete, geogrid, drainage pipe, backfill aggregate, and reinforcement steel are installed to the types and grades called out by the engineer.

Key elements we implement on engineered wall projects

• Proper footing and foundation preparation: Excavation to specified depth, compaction to required density, and formation of poured concrete footings or prepared subbase for block systems.

• Reinforcement and anchoring: Placement of rebar, embedded anchors, or specified mechanical connections per plan. For segmental walls we install geogrid at the specified embedment lengths and elevations.

• Engineered backfill and compaction: Use of the prescribed granular backfill materials and compaction equipment, placed in controlled lifts to meet the specified relative compaction (typically expressed as a percentage of Proctor).

• Drainage control: Installation of gravity drains, perforated drain pipe, filter fabric, and free-draining backfill to prevent hydrostatic pressure behind the wall as detailed by the engineer.

• Frost and settlement mitigation: Details such as frost depth footings, separation geotextiles, and settlement monitoring where called for.

• Tolerances and alignment: We build to

At Roaming Bison, we build retaining and structural walls to engineered specifications to ensure safety, longevity, and compliance with local codes. Whether the project is a functional retaining wall for slope stabilization or an aesthetic terraced landscape, our approach follows engineered plans and industry best practices every step of the way.

What "built to engineered spec" means

• We follow stamped design documents: Walls are constructed according to plans and details prepared or approved by a licensed civil or geotechnical engineer. These documents specify materials, dimensions, reinforcement, drainage, and acceptable tolerances.

• Structural intent is honored: Load-bearing requirements, soil pressures, surcharge allowances, and any required seismic or frost considerations are implemented exactly as designed.

• Materials and components meet spec: Masonry units, segmental retaining wall blocks, poured concrete, geogrid, drainage pipe, backfill aggregate, and reinforcement steel are installed to the types and grades called out by the engineer.

Key elements we implement on engineered wall projects

• Proper footing and foundation preparation: Excavation to specified depth, compaction to required density, and formation of poured concrete footings or prepared subbase for block systems.

• Reinforcement and anchoring: Placement of rebar, embedded anchors, or specified mechanical connections per plan. For segmental walls we install geogrid at the specified embedment lengths and elevations.

• Engineered backfill and compaction: Use of the prescribed granular backfill materials and compaction equipment, placed in controlled lifts to meet the specified relative compaction (typically expressed as a percentage of Proctor).

• Drainage control: Installation of gravity drains, perforated drain pipe, filter fabric, and free-draining backfill to prevent hydrostatic pressure behind the wall as detailed by the engineer.

• Frost and settlement mitigation: Details such as frost depth footings, separation geotextiles, and settlement monitoring where called for.

• Tolerances and alignment: We build to the dimensional tolerances and finished grades shown on the drawings, using laser

At Roaming Bison, creating permanent hardscape outdoor areas follows a systematic process that prioritizes durability, function, and integration with the landscape. The steps below outline how we design and build long-lasting hardscape installations.

Site assessment and planning

• Property evaluation: We inspect topography, soil conditions, drainage patterns, vegetation, access, and any existing structures or utilities. This identifies constraints and opportunities.

• Client goals and program: We clarify usage (entertaining, pathways, seating, fire features, water features, vehicle access), aesthetic preferences, budget, and maintenance expectations.

• Code and permit review: We check local codes, setbacks, and permit requirements, and coordinate applications when required.

• Concept design: We produce a site plan or schematic showing layout, circulation, material zones, grades, and key elevations for stakeholder review.

Engineering and specifications

• Grading and drainage design: We develop grades and drainage solutions to move water away from structures and prevent standing water. This can include swales, drains, permeable surfaces, and sub-surface piping.

• Structural design: For retaining walls, steps, decks, and vehicular surfaces we engineer the proper wall heights, footings, reinforcements, and subgrades. We size base and bedding layers to support expected loads.

• Material selection: We recommend materials suited to climate, load, and maintenance—natural stone, concrete pavers, cast-in-place concrete, unit retaining systems, brick, crushed stone, metal, or timber. We specify color ranges, textures, joint types, and sealing where appropriate.

Preparation and demolition

• Site protection: We install erosion and sediment controls, protect existing plants to remain, and set up safe access and staging.

• Demolition and clearing: Remove old patios, structures, or unsuitable soils. Locate and protect utilities.

• Earthwork: Cut and fill to achieve the planned grades, establishing stable subgrades for each hardscape element.

Sub-base and drainage installation

• Compaction: We compact the subgrade to manufacturer and engineering specifications to prevent settlement.

• Base layers: Install appropriate base

At Roaming Bison, creating permanent hardscape outdoor areas follows a systematic process that prioritizes durability, function, and integration with the landscape. The steps below outline how we design and build long-lasting hardscape installations.

Site assessment and planning

• Property evaluation: We inspect topography, soil conditions, drainage patterns, vegetation, access, and any existing structures or utilities. This identifies constraints and opportunities.

• Client goals and program: We clarify usage (entertaining, pathways, seating, fire features, water features, vehicle access), aesthetic preferences, budget, and maintenance expectations.

• Code and permit review: We check local codes, setbacks, and permit requirements, and coordinate applications when required.

• Concept design: We produce a site plan or schematic showing layout, circulation, material zones, grades, and key elevations for stakeholder review.

Engineering and specifications

• Grading and drainage design: We develop grades and drainage solutions to move water away from structures and prevent standing water. This can include swales, drains, permeable surfaces, and sub-surface piping.

• Structural design: For retaining walls, steps, decks, and vehicular surfaces we engineer the proper wall heights, footings, reinforcements, and subgrades. We size base and bedding layers to support expected loads.

• Material selection: We recommend materials suited to climate, load, and maintenance—natural stone, concrete pavers, cast-in-place concrete, unit retaining systems, brick, crushed stone, metal, or timber. We specify color ranges, textures, joint types, and sealing where appropriate.

Preparation and demolition

• Site protection: We install erosion and sediment controls, protect existing plants to remain, and set up safe access and staging.

• Demolition and clearing: Remove old patios, structures, or unsuitable soils. Locate and protect utilities.

• Earthwork: Cut and fill to achieve the planned grades, establishing stable subgrades for each hardscape element.

Sub-base and drainage installation

• Compaction: We compact the subgrade to manufacturer and engineering specifications to prevent settlement.

• Base layers: Install appropriate base material—angular crushed stone, gravel, or engineered aggregate

Permeable pavers and other permeable materials are practical, durable tools we use to manage stormwater, reduce runoff, and improve watershed health. Instead of forcing water into gutters and storm drains, permeable surfaces let water soak into the ground where it falls. That simple shift has several measurable benefits for water mitigation and watershed management:

• Infiltration and groundwater recharge: Permeable surfaces—pavers with joints filled with aggregate, porous concrete, and permeable asphalt—allow rainfall to percolate into the soil. This supports local aquifers and maintains base flows in nearby streams, which is especially important during dry periods.

• Reduced surface runoff and peak flows: By capturing and slowing water on-site, permeable materials reduce the volume and rate of runoff that reaches storm drain systems and waterways. Lower peak flows mean less erosion downstream and reduced risk of flooding in urban and suburban watersheds.

• Improved water quality: As stormwater infiltrates through permeable layers and engineered sub-bases, sediments and many pollutants (like oils, heavy metals, and nutrients) are filtered out or adsorbed. This reduces pollutant loads entering rivers, lakes, and coastal zones.

• Temperature moderation: Runoff traveling over hot, impervious surfaces can warm receiving waters, stressing aquatic life. Infiltration through permeable systems helps moderate runoff temperature before it reaches streams.

• Complementary to native landscaping and aquascapes: Permeable hardscapes integrate well with native plantings

Permeable pavers and other permeable materials are practical, durable tools we use to manage stormwater, reduce runoff, and improve watershed health. Instead of forcing water into gutters and storm drains, permeable surfaces let water soak into the ground where it falls. That simple shift has several measurable benefits for water mitigation and watershed management:

• Infiltration and groundwater recharge: Permeable surfaces—pavers with joints filled with aggregate, porous concrete, and permeable asphalt—allow rainfall to percolate into the soil. This supports local aquifers and maintains base flows in nearby streams, which is especially important during dry periods.

• Reduced surface runoff and peak flows: By capturing and slowing water on-site, permeable materials reduce the volume and rate of runoff that reaches storm drain systems and waterways. Lower peak flows mean less erosion downstream and reduced risk of flooding in urban and suburban watersheds.

• Improved water quality: As stormwater infiltrates through permeable layers and engineered sub-bases, sediments and many pollutants (like oils, heavy metals, and nutrients) are filtered out or adsorbed. This reduces pollutant loads entering rivers, lakes, and coastal zones.

• Temperature moderation: Runoff traveling over hot, impervious surfaces can warm receiving waters, stressing aquatic life. Infiltration through permeable systems helps moderate runoff temperature before it reaches streams.

• Complementary to native landscaping and aquascapes: Permeable hardscapes integrate well with native plantings and bioswales.

At Roaming Bison, we design and build custom waterfalls, ponds, and outdoor oasis that blend durability, ecological function, and quiet beauty. Our work combines landscape construction expertise with attention to site conditions, native planting, and water management so your water feature enhances the property year-round.

How we plan and build

• Site evaluation and goals

  • Assess topography, soil, drainage, existing vegetation, utilities, and access.

  • Clarify your goals: visual focal point, wildlife habitat, swimming or wading, sound level, maintenance preference, and budget.

  • Consider code and permit requirements, stormwater impacts, and water use.

• Design and engineering

  • Create a plan that integrates the water feature with hardscapes, paths, lighting, and plantings.

  • Size and shape ponds and basins to suit aesthetics and function—biological balance for fish and plants, if desired.

  • Design waterfalls and streams for appropriate flow rate and sound, with energy-efficient pumps and filtration systems sized to match.

  • Specify erosion control measures, structural stonework, and any required liners or reinforced sections.

• Excavation and foundation work

  • Perform precise excavation to form basins, stream channels, and waterfall drops.

  • Install underlayment, compaction, and appropriate base materials to ensure long-term stability.

  • Use durable liners, bentonite, or concrete where conditions demand watertight containment and longevity.

• Stonework and grading

  • Place natural stone and manufactured products with structural integrity and aesthetic composition in mind.

  • Build waterfall faces, stepping stones, and spillways to create naturalized flow and to resist displacement.

  • Grade surrounding areas to control runoff, prevent erosion, and direct overflow safely.

• Plumbing, pumps, and filtration

  • Install hidden, serviceable plumbing with energy-efficient pumps, variable-speed options, and accessible valves.

  • Integrate biological and mechanical filtration tailored to pond size and stocking (if any), plus UV sterilization when appropriate.

  • Provide skimming, bottom drains, or vortex chambers to maintain water clarity and reduce maintenance.

• Planting and habitat

  • Use native aquatic and shoreline plants to stabilize banks, filter water, and support local wildlife.

  • Design planting zones for seasonal

At Roaming Bison, we design and build custom waterfalls, ponds, and outdoor oasis that blend durability, ecological function, and quiet beauty. Our work combines landscape construction expertise with attention to site conditions, native planting, and water management so your water feature enhances the property year-round.

How we plan and build

• Site evaluation and goals

  • Assess topography, soil, drainage, existing vegetation, utilities, and access.

  • Clarify your goals: visual focal point, wildlife habitat, swimming or wading, sound level, maintenance preference, and budget.

  • Consider code and permit requirements, stormwater impacts, and water use.

• Design and engineering

  • Create a plan that integrates the water feature with hardscapes, paths, lighting, and plantings.

  • Size and shape ponds and basins to suit aesthetics and function—biological balance for fish and plants, if desired.

  • Design waterfalls and streams for appropriate flow rate and sound, with energy-efficient pumps and filtration systems sized to match.

  • Specify erosion control measures, structural stonework, and any required liners or reinforced sections.

• Excavation and foundation work

  • Perform precise excavation to form basins, stream channels, and waterfall drops.

  • Install underlayment, compaction, and appropriate base materials to ensure long-term stability.

  • Use durable liners, bentonite, or concrete where conditions demand watertight containment and longevity.

• Stonework and grading

  • Place natural stone and manufactured products with structural integrity and aesthetic composition in mind.

  • Build waterfall faces, stepping stones, and spillways to create naturalized flow and to resist displacement.

  • Grade surrounding areas to control runoff, prevent erosion, and direct overflow safely.

• Plumbing, pumps, and filtration

  • Install hidden, serviceable plumbing with energy-efficient pumps, variable-speed options, and accessible valves.

  • Integrate biological and mechanical filtration tailored to pond size and stocking (if any), plus UV sterilization when appropriate.

  • Provide skimming, bottom drains, or vortex chambers to maintain water clarity and reduce maintenance.

• Planting and habitat

  • Use native aquatic and shoreline plants to stabilize banks, filter water, and support local wildlife.

  • Design planting zones for seasonal interest and to shelter edges while maintaining sightlines and safe access.

  • Incorporate

We have the earth-moving equipment and experienced

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale —

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hard

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling:

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling: hauling, stockpiling, and off-site disposal; on-site soil management and re-use where appropriate.

• Erosion control integration: sediment fences,

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling: hauling, stockpiling, and off-site disposal; on-site soil management and re-use where appropriate.

• Erosion control integration: sediment fences, inlet protection, temporary diversion, and permanent stabilization measures incorporated during and after excavation.

• Safety and compliance: trained operators, site-specific planning, call-before-you-dig locates, and adherence to

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling: hauling, stockpiling, and off-site disposal; on-site soil management and re-use where appropriate.

• Erosion control integration: sediment fences, inlet protection, temporary diversion, and permanent stabilization measures incorporated during and after excavation.

• Safety and compliance: trained operators, site-specific planning, call-before-you-dig locates, and adherence to local regulations and best practices.

Typical applications

• Large residential: driveway and pool excavation, house pad preparation, retaining wall subgrades, basement and crawl

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling: hauling, stockpiling, and off-site disposal; on-site soil management and re-use where appropriate.

• Erosion control integration: sediment fences, inlet protection, temporary diversion, and permanent stabilization measures incorporated during and after excavation.

• Safety and compliance: trained operators, site-specific planning, call-before-you-dig locates, and adherence to local regulations and best practices.

Typical applications

• Large residential: driveway and pool excavation, house pad preparation, retaining wall subgrades, basement and crawlspace digs.

• Small commercial: grading for sidewalks, curb

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling: hauling, stockpiling, and off-site disposal; on-site soil management and re-use where appropriate.

• Erosion control integration: sediment fences, inlet protection, temporary diversion, and permanent stabilization measures incorporated during and after excavation.

• Safety and compliance: trained operators, site-specific planning, call-before-you-dig locates, and adherence to local regulations and best practices.

Typical applications

• Large residential: driveway and pool excavation, house pad preparation, retaining wall subgrades, basement and crawlspace digs.

• Small commercial: grading for sidewalks, curb cut and utility trenching, parking area prep, stormwater swales and detention features.

• Site remediation and clearing: tree and brush removal, stump grinding, rough grading, and contaminated soil handling protocols when required.

Why it

We have the earth-moving equipment and experienced operators to handle excavation projects of any scale — from large residential lots to small commercial sites.

What we bring

• Full fleet: excavators (mini to medium), skid steers, backhoes, tracked loaders, dump trucks, and compactors.

• Versatility: tight-access residential yards, sloped or wooded lots, and mid-size commercial pads or utility trenches.

• Precision grading: finish grading for lawns, hardscape bases, drainage correction, and site preparation for foundations or pavement.

• Material handling: hauling, stockpiling, and off-site disposal; on-site soil management and re-use where appropriate.

• Erosion control integration: sediment fences, inlet protection, temporary diversion, and permanent stabilization measures incorporated during and after excavation.

• Safety and compliance: trained operators, site-specific planning, call-before-you-dig locates, and adherence to local regulations and best practices.

Typical applications

• Large residential: driveway and pool excavation, house pad preparation, retaining wall subgrades, basement and crawlspace digs.

• Small commercial: grading for sidewalks, curb cut and utility trenching, parking area prep, stormwater swales and detention features.

• Site remediation and clearing: tree and brush removal, stump grinding, rough grading, and contaminated soil handling protocols when required.

Why it matters Having the right equipment and operators reduces schedule risk, improves excavation accuracy, minimizes rework, and keeps your project on budget. We coordinate machine selection, sequencing, and erosion control so excavation work supports the next construction phase without delay.

If you have a site or scope in mind, provide dimensions, access constraints, and soil/terrain notes

We have the machines and trained crews to handle excavation for any site — from big yards to small commercial lots.

What we provide

• Full fleet

We have the machines and trained crews to handle excavation for any site — from big yards to small commercial lots.

What we provide

• Full fleet: mini to medium excavators, skid steers, backhoes, tracked loaders, dump trucks, compactors.

• Versatile access: tight yards, slopes, wooded sites, and mid-size commercial pads or trenches.

• Precise grading: finish grades for lawns, hardscape bases, drainage fixes

We have the machines and trained crews to handle excavation for any site — from big yards to small commercial lots.

What we provide

• Full fleet: mini to medium excavators, skid steers, backhoes, tracked loaders, dump trucks, compactors.

• Versatile access: tight yards, slopes, wooded sites, and mid-size commercial pads or trenches.

• Precise grading: finish grades for lawns, hardscape bases, drainage fixes, and foundation or pavement prep.

• Material handling: hauling, stockpiling, disposal, and on-site soil reuse when suitable.

• Erosion control: sediment fences, inlet protection, temporary diversions,

We have the machines and trained crews to handle excavation for any site — from big yards to small commercial lots.

What we provide

• Full fleet: mini to medium excavators, skid steers, backhoes, tracked loaders, dump trucks, compactors.

• Versatile access: tight yards, slopes, wooded sites, and mid-size commercial pads or trenches.

• Precise grading: finish grades for lawns, hardscape bases, drainage fixes, and foundation or pavement prep.

• Material handling: hauling, stockpiling, disposal, and on-site soil reuse when suitable.

• Erosion control: sediment fences, inlet protection, temporary diversions, and permanent stabilization during and after work.

• Safety & compliance: trained operators

We have the machines and trained crews to handle excavation for any site — from big yards to small commercial lots.

What we provide

• Full fleet: mini to medium excavators, skid steers, backhoes, tracked loaders, dump trucks, compactors.

• Versatile access: tight yards, slopes, wooded sites, and mid-size commercial pads or trenches.

• Precise grading: finish grades for lawns, hardscape bases, drainage fixes, and foundation or pavement prep.

• Material handling: hauling, stockpiling, disposal, and on-site soil reuse when suitable.

• Erosion control: sediment fences, inlet protection, temporary diversions, and permanent stabilization during and after work.

• Safety & compliance: trained operators, site plans, utility locates, and local code adherence.

Typical jobs

• Large residential: driveways, pools, house pads, retaining wall