CivilQuants

How to connect

• compute_connection_to_existing

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Enumerated extra-over connection of a new drainage carrier pipe into an existing asset: existing manhole / inspection chamber, existing sewer or drain (via saddle / wye / cut-in junction), or existing outfall / watercourse / surface system. Routes via CESMM4 I.7.1/2/3 (Class I §I.7 Pipework Ancillaries —

• compute_hard_material_in_trench

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Linear extra-over measurement of hard material encountered during drainage trench excavation. Discriminates between natural rock (CESMM4 E.6 / NRM2 5.6.1 / MMHW 500.6.1 / SMM7 R12.6.1) and artificial hard material — buried concrete / masonry / obstructions (CESMM4 E.7 / NRM2 5.6.2 / MMHW 500.6.2 / SMM7 R

• compute_ditch

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Linear primary measurement of an open earthwork drainage channel — trapezoidal cross-section, four lining variants (unlined / geotextile / granular / concrete). Routes via CESMM4 Class E.4 (excavation for cuttings), NRM2 Group 34.10 (site works: open drains and ditches), MMHW Series 500.4 (SHW Cl. 514 Ea

• compute_pipework_testing

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Linear measurement of testing on new drainage pipework — CCTV survey, air pressure test, water pressure test, or mandrel pull-through. Routes via CESMM4 Class I §I.8 (Tests on new pipework), NRM2 Group 33.18 (Testing of drainage) as priceable lines; via MMHW Series 500.7 (per SHW Cl. 507 deemed included

• compute_catchpit

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Precast concrete catchpit / silt trap to BS 5911-3 comprising factory-cast monolithic base with integral silt sump (600-900mm below outlet invert), stacked precast chamber rings, precast cover slab, ductile-iron frame and cover (BS EN 124 loading classes), optional step irons, granular or concrete beddin

• compute_manhole

  Free tier. Renders the MMHW standard only — CESMM4, NRM2 and SMM7 require a paid tier. Anonymous callers welcome. Composite assembly: precast concrete circular manhole with base slab, chamber rings (optional reducing slab + shaft), cover slab, frame & cover (BS EN 124 loading classes), step irons or ladder, in-situ benching with pre-formed channel, granular surround, geotextile separator, and excavation. Supports both open-battered and sheet-piled excavations. Example params: internal_diameter=1

• compute_manhole_precast

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Fully monolithic precast concrete circular manhole comprising factory-cast base + bottom ring + integral benching + pre-formed channel as a single delivered unit (BS 5911-3), with stacked precast chamber rings, optional reducing slab and access shaft, precast cover slab, ductile-iron frame and cover (BS

• compute_box_culvert

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Precast concrete box culvert run (Marshalls / FP McCann / CPM ranges, BS EN 14844 / BS 5911-3) of one of eight catalogue sizes from BC_600 (600 × 600mm) to BC_3000x2000 (3000 × 2000mm). Composes the precast units (N per run), concrete blinding bedding, geotextile separator, selected granular surround per

• compute_gully

  Free tier. Renders the MMHW standard only — CESMM4, NRM2 and SMM7 require a paid tier. Anonymous callers welcome. Composite drainage inlet: precast gully pot with trap, ductile-iron grating, optional kerb outlet, and a short connection drain to the carrier sewer. The connection drain re-uses the bedding primitive. Four-standard rendering with component-aware sub-codes (CESMM4 K.6.x, NRM2 33.8.x, MMHW 500.7.x, SMM7 R12.3.6.x). Example params: pot_internal_diameter_mm=450 mm (300–750), pot_depth_m

• compute_headwall_attenuation_outlet

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_headwall. Controlled attenuation outlet: precast concrete headwall plus outlet-control ironmongery (orifice plate, optional flap valve, weir overflow, penstock) and downstream scour protection. 2nd use of the bundle-with-shared-envelope pattern (template: combined_services_trench S14). Composes headwall_precast f

• compute_headwall_precast

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_headwall. Precast concrete outfall headwall, supplied as a whole unit from a UK manufacturer (Marshalls CPM, FP McCann, Stanton Bonna or equivalent). Catalogue-driven sizing from PHW_300 (300mm pipe ID) to PHW_1500 (1500mm). Includes excavation, concrete or granular bedding, and optional rock-armour scour protect

• compute_headwall

  Free tier. Renders the MMHW standard only — CESMM4, NRM2 and SMM7 require a paid tier. Anonymous callers welcome. Composite RC outfall headwall: back wall pierced by the outfall pipe, splayed wing walls flaring downstream, apron slab, and rock-armour scour protection. In-situ or precast construction; BS 8666:2020 bar schedule composed across back wall, apron and wing walls. Four-standard rendering across CESMM4 / NRM2 / MMHW / SMM7. Example params: pipe_internal_diameter_mm=300 mm (100–1800), pi

• compute_carrier_pipe_run

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Linear carrier-pipe measurement assembly with full four-standard depth-banded rendering. CESMM4 Class I (I.{material}.{bore}.{depth}, 9 depth bands), NRM2 Group 33 (33.1.{bore}.{depth}, equivalent banding), MMHW Series 500 (500.1.{bore}.{depth}, 11 depth bands extending to 6 m for highway-scale carriers

• compute_french_drain

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Perforated land drain in a granular-filled trench with non-woven filter geotextile wrap. Composes the bedding primitive at Class S geometry (full granular envelope) with three additions: perforated carrier, filter geotextile wrap, and optional top seal. Renders cleanly across CESMM4 / NRM2 / MMHW (Series

• compute_edge_drain

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Highway pavement edge drain per HD 33/16. Perforated carrier in a granular-filled trench with filter geotextile wrap; optional top separator under the pavement build-up. Highway-specific defaults: Type B filter aggregate, 200 g/m² geotextile, supported excavation. Headline standard mapping: MMHW 500.7 (f

• compute_pipe_bedding

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Linear pipe trench with class-driven bedding and surround. Strategy pattern on (BeddingContext × BeddingClass): Highway (HA 40/01 / MMHW Series 500) vs Building (BS EN 1610 / NRM2 §33), Class N/F/B/S/A/Z. Emits trench excavation, granular bed, surround or concrete cradle/encasement, selected backfill, di

• compute_soakaway

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_attenuation_tank. Infiltration soakaway per CIRIA C753 Chapter 25. Granular-fill or modular-crate storage envelope with infiltration discharge through the base and side walls. Wraps attenuation_tank for the storage envelope and emits an INFILTRATION_SURFACE item plus optional PERFORATED_DISTRIBUTION_PIPE on top.

• compute_attenuation_tank

  Free tier. Renders the MMHW standard only — CESMM4, NRM2 and SMM7 require a paid tier. Anonymous callers welcome. Stormwater attenuation tank supporting two configurations: modular geocellular crates (high void ratio, compact footprint) or large-bore pipe arrays (1.5m+ ID concrete pipes in parallel runs). Excavation may be open-battered or vertical-sided with sheet pile support. Example params: tank_length=30 m (2–200), crate_width=6 m (1–20), crate_height=1.2 m (0.4–3.6). Example call: {"params

• compute_swale

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_attenuation_tank. Vegetated, geotextile-reinforced or rip-rap-lined linear drainage swale per CIRIA C753. Trapezoidal prismatic channel with three lining strategies covering the UK design palette from low-velocity amenity grass channels (1V:3H, 1-3% gradient) to high-velocity rip-rap-lined stretches. Optional che

• compute_petrol_oil_interceptor

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Prefabricated petrol/oil interceptor (separator) per BS EN 858-1:2002 / BS EN 858-2:2003 and SHW Cl. 519. Catalogue-driven on three axes: Class (1 with coalescer + auto-closure for ≤5 mg/l surface-water discharge, or 2 for ≤100 mg/l foul-sewer discharge), Type (full retention NSF for high-spill-risk fore

• compute_gabion_wall

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Modular gabion retaining wall built from welded or hexagonal-mesh wire baskets filled with hard angular graded stone (SHW Cl. 622). The first non-concrete retaining structure in the platform and the FIRST member of the earth_structures L1 leaf — opening Phase E. Spans four structural forms via th

• compute_reinforced_soil_wall

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Reinforced soil retaining wall (RSW) using granular fill reinforced with horizontal layers of geogrid or steel tie strips, with one of four facing systems: precast concrete panels (Reinforced Earth™ / VSL Retained Earth style), segmental modular blocks (Allan Block / Keystone), wraparound soft fa

• compute_soil_nailed_slope

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Cut slope stabilised by passively-stressed soil nails with an applied face system. Discriminates between four face systems via the face_system enum: SHOTCRETE_MESH (dominant UK highway-cutting choice per SHW Cl. 644), HARD_FACING_PANEL (premium permanent works), FLEXIBLE_MESH (weathered rock drap

• compute_embankment_cross_section

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Geometry-driven embankment per MMHW Series 600 — trapezoidal cross-section with crest width, asymmetric side slopes (h:v), and per-chainage height profile. Auto-generates the CrossSection series and delegates volume integration + mass-haul + standards routing to the end_area_earthworks engine

• compute_end_area_earthworks

  Free tier. Renders the MMHW standard only — CESMM4, NRM2 and SMM7 require a paid tier. Anonymous callers welcome. Linear earthworks reach measured by the end-area method per MMHW Series 600 — Simpson's Rule with UK-QS even-ordinate trapezoidal-boundary fallback, with full SHW Series 600 Table 6/1 class tagging, mass-haul diagram (bulking + shrinkage per SHW Cl. 605), cut/fill balance, DISPOSAL vs FILL_GENERAL routing, capping and sub-base build-up, and topsoil strip + replacement. Renders identi

• compute_parapet

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Bridge / structural-deck parapet installation per BS 6779-1 + BS EN 1317-2 + SHW Cl. 408. Discriminates between four UK parapet system classifications via the parapet_type enum (pedestrian_only per BS 7818; vehicle_p1_p2 — low-containment BS EN 1317-2; vehicle_h1_h2_h3 — higher-containment; c

• compute_highway_drainage_channel

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Highway / surface-water drainage channel installation per BS EN 1433 + SHW Cl. 511-514 + HD 33/16. Discriminates between five UK channel product classifications via the channel_type enum (linear_polymer_concrete — ACO-pattern; linear_concrete — Charcon-pattern precast; slot_drain — narrow-slo

• compute_lighting_column

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Highway / street lighting column installation per BS EN 40 + BS 5489-1:2020 + TR 22. Discriminates between four UK column material classifications via the column_type enum (steel_galvanised, aluminium, composite_grp, decorative_cast_iron). Plus parallel discriminators on three further WorkCat

• compute_vehicle_restraint_system

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Vehicle restraint system (VRS) for highway works per SHW Cl. 401-419 and BS EN 1317. Discriminates between six structural system types via the vrs_system_type enum: tensioned and untensioned corrugated steel beam, wire rope, in-situ concrete step barrier, precast concrete single-slope, and co

• compute_road_marking

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Road marking installation per SHW Cl. 1207-1215 and TSRGD 2016. Discriminates between five UK marking-line classifications via the marking_line_type enum: continuous, broken_short, broken_long, double_continuous, lane_line. Plus parallel discriminators on three further WorkCategory entries: a

• compute_traffic_sign

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Traffic sign installation per SHW Cl. 1201-1206 and TSRGD 2016. Discriminates between five TSRGD sign classifications via the sign_type enum: warning triangular, regulatory circular, regulatory rectangular, directional rectangular, and information rectangular. SECOND member of the highway L1

• compute_flexible_pavement

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Flexible pavement build-up: optional capping (Class 6F) + Type 1 (Class 1A) granular sub-base + asphalt concrete base (AC) + binder course (AC/HRA) + optional tack coat + surface course (AC/HRA/SMA/TSCS). Routes the bound layers through PAVEMENT_BASE/BINDER/SURFACE handlers with pavement_fami

• compute_permeable_pavement

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Permeable pavement build-up per CIRIA C753 — The SuDS Manual Chapter 20. Covers the three principal UK permeable surface types (Permeable Block Paving per BS 7533-13; Porous Asphalt per SHW Cl. 938; Porous no-fines Concrete per CIRIA C753) and the three CIRIA infiltration regimes (System A fu

• compute_rigid_pavement

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_end_area_earthworks. Rigid pavement build-up: optional capping (Class 6F) + Type 1 (Class 1A) granular sub-base + optional separation membrane + PQC slab (URC, JRC, or CRCP variant) with joint formwork (transverse contraction, longitudinal construction, expansion) and reinforcement (dowel bars + tie bars + option

• compute_anchored_wall

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Anchored retaining wall — the only wall family member that pre-stresses the retained soil mass into the wall via post-tensioned ground anchors per BS EN 1537. Three structural variants: in-situ reinforced concrete (INSITU_RC, economic 5-10m); steel king-post-and-lagging (KING_POST, typical 4-8m,

• compute_bored_pile_wall

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Cast-in-place bored concrete pile retaining wall, the SEVENTH member of the wall family and the FIFTH of the retaining_walls L1 leaf. The SIXTH structural system in the retaining / earth-structures domain (after mass concrete / RC / steel / mesh-and-stone / reinforced-soil-with-facing). Four stru

• compute_cantilever_wall

  Free tier. Renders the MMHW standard only — CESMM4, NRM2 and SMM7 require a paid tier. Anonymous callers welcome. In-situ reinforced concrete cantilever retaining wall with toe, heel, and stem. Includes excavation, blinding, drainage, and backfill quantities. Example params: stem_height=4 m (2–8), stem_thickness_top=0.3 m (0.2–0.6), stem_thickness_bottom=0.45 m (0.25–0.9). Example call: {"params": {"stem_height": 4, "stem_thickness_top": 0.3, "stem_thickness_bottom": 0.45}, "standard": "MMHW"}.

• compute_counterfort_wall

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. In-situ reinforced concrete counterfort retaining wall. Discrete RC counterforts on the retained face enhance moment capacity, making the wall economic for 4-10m retained heights (above cantilever-economic range, below anchored-wall range). Includes base slab, thin curtain wall, counterforts at c

• compute_gravity_wall

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. In-situ mass concrete gravity retaining wall (typical C20/25 to C25/30) with trapezoidal cross-section, retaining soil by self-weight rather than structural action. Eight variant presets exercise the parameter form — landscape, highway boundary, trapezoidal, stepped-front, toe-projection, keyed-b

• compute_kerb_run

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Linear precast concrete kerb run on concrete bed and haunch over Type 1 (Class 1A) granular sub-base. Emits excavation, sub-base (v8 SHW-class-aware), concrete bed, kerb units to BS EN 1340 / SHW Cl. 1101, concrete haunch to back face, optional channel block, and disposal. Supports HB2/HB1/SP/BN/

• compute_pad_foundation

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Single isolated reinforced concrete pad foundation with optional pedestal. Demonstrates BS 8666:2020 reinforcement scheduling integrated with the four-standard rendering invariant. Example params: length=2 m (0.5–10), width=2 m (0.5–10), thickness=0.45 m (0.15–2). Example call: {"params": {"lengt

• compute_strip_foundation

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_cantilever_wall. Linear reinforced concrete strip foundation, level or stepped. Closes the P1 launch set alongside pad_foundation. Integrates BS 8666:2020 reinforcement scheduling. Stepping is the v10 demonstration of cross-cutting standards-handler discrimination. Example params: length=10 m (1–100), width=0.75

• compute_utility_chamber

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Catalogue-driven utility access chamber covering ten standard UK types: BT/Openreach jointing chambers JC1-JC4 (defaulting to UTILITY_PROVIDER_SUPPLY routing), water meter chamber (FW6), wastewater inspection chamber (RW9), valve chamber, gas Emergency Control Valve pit (ECV), LV electrical link box, and

• compute_utility_kiosk_base

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Foundation + kiosk hardware composite for utility cabinets — LV electricity feeder pillars (DNO-supplied), Openreach FTTC cabinets (PIA-supplied), EV rapid-charging plinths, packaged DNO substations, and generic precast plinths. Light-wrapper delegation around pad_foundation for the substructure (excavat

• compute_combined_services_trench

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Shared utility trench carrying multiple services at staggered depths (water, gas, electricity, telecoms) per NJUG Volume 1. One excavation envelope, one disposal, one backfill column, with per-service bedding, surround, pipe/duct, and warning tape. Renders through CESMM4 Class I, NRM2 Group 41, MMHW Seri

• compute_single_service_run

  Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Single-service utility run per NJUG Volume 1 — one water main OR one gas main OR one electricity cable duct OR one telecoms duct (or fibre / street-lighting / HV cable duct) in a dedicated trench. Wraps the combined-services-trench engine with a single-band envelope and re-tags emissions back to this ass

• render_skill_report

  Render previously-computed BoQ results into a deliverable (Excel workbook or Word report). Excel is free with watermark + sheet protection; Word is paid-tier only and returns a TIER_INSUFFICIENT envelope for anonymous callers. The wire shape matches POST /api/v1/mcp/render exactly.

• save_project

  Persist a CivilQuants project with its assembly list. Paid tier only — anonymous callers receive a TIER_INSUFFICIENT envelope pointing at https://civilquants.com/pricing.

• get_project

  Fetch a previously saved CivilQuants project by id. Paid tier only — anonymous callers receive a TIER_INSUFFICIENT envelope.

• recompute_project

  Re-run every enabled assembly in a saved project and render aggregated BoQs across the requested measurement standards. Paid tier only — anonymous callers receive a TIER_INSUFFICIENT envelope.

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