Civil engineering – often called municipal or public works engineering – focuses on the infrastructure that supports communities. At Allon Consulting, our civic engineers design roads, bridges, drainage systems, and public spaces that enhance quality of life while meeting stringent safety and environmental standards. We collaborate with municipalities, developers, and government agencies to deliver projects that serve the public good.
Roadways and Transportation Networks
We design safe, efficient transportation corridors:
- Geometric design – horizontal and vertical alignment, lane widths, intersection layout, and sight distance analysis.
- Pavement design – flexible (asphalt) and rigid (concrete) pavement sections based on traffic loading and subgrade conditions.
- Traffic engineering – signal timing, signage, pavement markings, and traffic calming measures.
- Multi‑modal accommodation – bike lanes, pedestrian paths, transit stops, and accessibility (ADA) compliance.
- Roundabouts and interchanges – modern roundabout design, grade‑separated interchanges, and interchange modifications.
Bridges and Culverts
We provide structural design for crossing watercourses, railways, and roads:
- Bridge types – girder, truss, arch, and slab bridges; precast or cast‑in‑place concrete; steel superstructures.
- Culvert design – box culverts, pipe arches, and slab culverts with hydraulic capacity analysis.
- Load rating and rehabilitation – assessment of existing structures and strengthening or replacement strategies.
- Hydraulic considerations – scour analysis, debris management, and flood level evaluations.
Stormwater Management and Drainage
Effective drainage prevents flooding and protects water quality:
- Storm sewer networks – pipe sizing, manhole spacing, and outfall design using rational method or hydrologic modeling.
- Open channels and ditches – lined or vegetated swales, rip‑rap protection, and energy dissipaters.
- Detention and retention ponds – wet ponds, dry ponds, and underground storage to manage peak flows.
- Low Impact Development (LID) – permeable pavements, bioretention cells, rain gardens, and infiltration trenches.
- Floodplain management – FEMA mapping, flood elevation certificates, and mitigation measures.
Water Distribution and Sanitary Sewers
Civil engineers design the underground lifelines:
- Water mains – pressure pipe selection (ductile iron, PVC, HDPE), fire flow requirements, and valve placement.
- Sanitary sewers – gravity and force main design, manhole spacing, and lift station sizing.
- System modeling – using EPANET and SewerGEMS to analyze capacity, pressure, and water quality.
- Rehabilitation – trenchless technologies like CIPP lining, pipe bursting, and slip lining.
Public Works and Site Development
We create functional and attractive public spaces:
- Parks and trails – grading, pathway alignment, lighting, and amenities.
- Plazas and streetscapes – urban design elements, furniture, and hardscaping.
- Utility coordination – relocation and protection of existing water, sewer, gas, and electrical utilities.
- Grading and earthworks – site preparation, cut/fill balance, and erosion control.
Construction Management and Inspection
Our involvement often extends into construction:
- Contract administration – bid document preparation, contractor selection, and progress payments.
- Field inspection – materials testing (concrete, asphalt, soils), compaction testing, and quality assurance.
- Change management – handling field modifications, claims review, and dispute resolution.
Sustainability and Resilience
We incorporate forward‑thinking practices:
- Green streets – pervious pavements, stormwater tree pits, and urban heat island mitigation.
- Resilience planning – climate adaptation strategies for sea‑level rise, extreme rainfall, and temperature shifts.
- Asset management – lifecycle planning for infrastructure renewal.
Typical Projects
- Design of 8 km of urban arterial road with bike lanes, transit priority, and stormwater LID features.
- Replacement of a 60‑year‑old bridge with a precast concrete girder structure, including hydraulic analysis.
- Master drainage plan for a 500‑hectare watershed, reducing flood risk for 2,000 properties.
- Sanitary sewer rehabilitation using cured‑in‑place pipe (CIPP) over 12 km, extending asset life by 50 years.
Our civic engineers are dedicated to creating infrastructure that is safe, sustainable, and responsive to community needs. We pride ourselves on delivering projects that stand the test of time and improve the daily lives of citizens.
