diff --git a/decisions/architecture.md b/decisions/architecture.md
index d74d39682..c3cdd7ff3 100644
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@@ -1693,8 +1693,9 @@ Technical foundation decisions that constrain implementation: engine, client-ser
 - **Refined 2026-05-26 (street-network algorithm — two layers):** streets generate in **two layers**, mirroring real cities and the Civ road lineage. **Arterials** (`corridors`) = a **minimum-spanning / least-cost graph** over the district's key nodes (access-points, reservations, landmarks) — emergent trunk topology (Civ6-style, "roads where traffic wants to go"), ±45°-snapped; **this is the node/edge graph the guarantee audit (D-097) reads** (a chokepoint *is* an arterial bottleneck; an encounter-corridor *is* an arterial through-route). Ribbon = MST on linearly-constrained nodes; hub-and-spoke = MST with a forced centroid hub. **Local streets** (`chunk_layout`) = a ±45° **grid lattice** within each block (Civ4-style), modulated by the D-096 Grid/Organic mode (offsets + rotation). **Voronoi was rejected** — its arbitrary-angle edges violate the ±45° cap and its irregular cells break the axis-aligned `TileRect` footprint fast-path (D-229), degrading per-chunk fill from rectangle-containment to polygon rasterization. (Civ1–4's "road on every tile" is the anti-pattern this avoids; the arterial/local split is the city-scale fix.)
 - **Rationale:** Morphology zone and `architecture_flavor` were added to the context (D-199) as *inputs without consumers* — two economically-similar bodies otherwise produce topologically identical street networks and identical block subdivision (Nigel's same-y-grid failure). These two rules give morphology structural teeth so the fjord port and the delta port are categorically different cities, not reskins.
 - **Implementation:** Phase 4+. Consumed in the plan phase (D-230) when laying streets and subdividing blocks.
+- **Implemented 2026-06-06 (#957):** the street network + footprint subdivision land in `skeleton_gen.rs` (absorbing #976 into #957 — one coherent walkable-quarter deliverable). `AccessPoint`/`CorridorSpine`/`ChunkLayout` are now typed structs (were `String` stubs): access nodes from road-entry octants + reservation gates; arterial corridors as a morphology-gated graph (Ribbon for fjord/canyon/mountain-pass, HubSpoke for delta/island/enclosed water, Prim-MST mesh otherwise), ±45°-snapped (a); per-block local lattice modulated by D-096 Grid/Organic. Footprint subdivision is a density-scaled BSP into axis-aligned `TileRect`s with D-233 BulkClass roofed-coverage. **Waterfront rule (b):** the water-facing quarter edge (from the settlement's `Coastal` founding orientation, D-213) drops its street setback to 0 so buildings present flush to the quay. The water bearing itself is now extracted in Layer 1 (`TerrainAnalysis::water_bearing`, 8-octant integer) and fed into D-213 founding orientation (#956's `0` stub is gone for coastal/river settlements). **Pending dependency:** the waterfront rule reads `CityGenerationContext.founding_orientation`, which `city_context_reader` still stubs to `Cardinal` — real per-settlement orientation only reaches quarter generation once the **Layer-3 placement → Layer-4 `GenerateSkeleton` dispatch** is wired (it must copy the placement's founding orientation into the context). That cross-layer dispatch is the remaining integration; the rule is correct and tested, awaiting its input pipeline.
 - **Raised by:** Nigel, economic-built-world workshop round 2, 2026-05-25.
-- **Cross-reference:** [D-228](#d-228) (morphology zone), [D-215](#d-215) (arrangement patterns — gated), [D-096](#d-096) (layout mode / ±45° cap), [D-220](#d-220) (density), [D-229](#d-229), [Q-106](questions-architecture.md#q-106)
+- **Cross-reference:** [D-228](#d-228) (morphology zone), [D-215](#d-215) (arrangement patterns — gated), [D-096](#d-096) (layout mode / ±45° cap), [D-220](#d-220) (density), [D-229](#d-229), [D-213](#d-213) (founding orientation — water bearing), [Q-106](questions-architecture.md#q-106), [Q-109](questions-architecture.md#q-109)
 - **Dissent:** None
 
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