diff --git a/B05_Profile/logic/B05_Profile_Pipeline_RouteGround.ts b/B05_Profile/logic/B05_Profile_Pipeline_RouteGround.ts
index 47ec5b627..b9e3d0d88 100644
--- a/B05_Profile/logic/B05_Profile_Pipeline_RouteGround.ts
+++ b/B05_Profile/logic/B05_Profile_Pipeline_RouteGround.ts
@@ -13,6 +13,7 @@
  * ========================================================================== */
 
 import type {
+  DesignCurve,
   GroundOutput,
   GroundSample,
   PipelineStation,
@@ -38,35 +39,43 @@ import {
 export interface RouteStageDeps {
   /** 곡선 기본 반지름(m) — 편집기 `minRadiusM`(계획 기준 · 0 = 없음). */
   minRadiusM(): number;
-  /** 초안이 없을 때(= 저장분 그대로) 그릴 노선 — 없으면 null. */
-  savedLine(): Vertex[] | null;
+  /** 초안이 없을 때(= 저장분 그대로) 그릴 노선 · 곡선표 — 없으면 null. */
+  savedLine(): { line: Vertex[]; curves: DesignCurve[] } | null;
 }
 
 /** 정점마다 누가거리 — 첫 점 0. */
-export function routeLineOf(line: Vertex[]): RouteLine {
+export function routeLineOf(line: Vertex[], curves: DesignCurve[] = []): RouteLine {
   const chainage = [0];
   for (let i = 1; i < line.length; i += 1) {
     chainage.push(
       chainage[i - 1] + Math.hypot(line[i][0] - line[i - 1][0], line[i][1] - line[i - 1][1]),
     );
   }
-  return { line, chainage, lengthM: chainage[chainage.length - 1] };
+  return { line, curves, chainage, lengthM: chainage[chainage.length - 1] };
 }
 
-/** 초안 → 그린 노선. 길이를 붙든 곡선은 교각에 맞춰 R 을 다시 잡음(편집기 `markEdited` 와 같은 차례). */
-export function draftLine(draft: RouteDraft, minRadiusM: number): Vertex[] {
+/** 초안 → 그린 노선 · 곡선표(계약 꼴). 길이를 붙든 곡선은 교각에 맞춰 R 을 다시 잡음(편집기
+ *  `markEdited` 와 같은 차례). */
+export function draftLine(
+  draft: RouteDraft,
+  minRadiusM: number,
+): { line: Vertex[]; curves: DesignCurve[] } {
   const nodes = draft.nodes.map((node): Vertex => [node[0], node[1]]);
   const radius = [...draft.curveRadius];
   applyArcLocks(nodes, [...draft.curveLock], [...draft.curveArc], radius);
-  return buildEditedPolyline(nodes, draft.curveOn, radius, minRadiusM).vertices;
+  const built = buildEditedPolyline(nodes, draft.curveOn, radius, minRadiusM);
+  return {
+    line: built.vertices,
+    curves: built.curves.map(({ start, apex, end, radius_m }) => ({ start, apex, end, radius_m })),
+  };
 }
 
 export function createRouteStage(deps: RouteStageDeps): StageFn<"route"> {
   return (ctx) => {
     const draft = ctx.inputs.route;
-    const line = draft ? draftLine(draft, deps.minRadiusM()) : deps.savedLine();
-    if (!line || line.length < 2) throw new Error("그릴 노선이 없습니다.");
-    return routeLineOf(line);
+    const drawn = draft ? draftLine(draft, deps.minRadiusM()) : deps.savedLine();
+    if (!drawn || drawn.line.length < 2) throw new Error("그릴 노선이 없습니다.");
+    return routeLineOf(drawn.line, drawn.curves);
   };
 }
 
diff --git a/resources/tester/test_346_1_route_ground_stage.py b/resources/tester/test_346_1_route_ground_stage.py
index 9f25a8298..0c2c3f8e2 100644
--- a/resources/tester/test_346_1_route_ground_stage.py
+++ b/resources/tester/test_346_1_route_ground_stage.py
@@ -49,7 +49,9 @@ const draft = {
   rev: 1, nodes: job.nodes, curveOn: Array(n).fill(true), curveRadius: Array(n).fill(null),
   curveLock: Array(n).fill(null), curveArc: Array(n).fill(null), stationSnap: false, terrain: null,
 };
-const routeStage = createRouteStage({ minRadiusM: () => job.minRadius, savedLine: () => job.line });
+const routeStage = createRouteStage({
+  minRadiusM: () => job.minRadius, savedLine: () => ({ line: job.line, curves: [] }),
+});
 const ctxOf = (extra) => ({
   generation: 1, range: null, signal: new AbortController().signal,
   inputs: { route: null, alignment: null, cross: null, pipes: null, structures: null },
@@ -242,7 +244,14 @@ def test_route_ground_단계가_서버와_같고_범위_밖을_재사용한다(t
     steps = np.hypot(*np.diff(np.asarray(built.vertices), axis=0).T)
     assert abs(route["lengthM"] - float(steps.sum())) < 1e-6
     assert route["chainage"][0] == 0 and len(route["chainage"]) == len(route["line"])
+    assert len(route["curves"]) == len(built.curves) > 0
+    for ts, py in zip(route["curves"], built.curves, strict=True):
+        assert set(ts) == {"start", "apex", "end", "radius_m"}
+        assert abs(ts["radius_m"] - py.radius_m) < 1e-9
+        for key in ("start", "apex", "end"):
+            assert max(abs(a - b) for a, b in zip(ts[key], getattr(py, key))) < 1e-9
     assert out["saved"]["line"] == line
+    assert out["saved"]["curves"] == []
     assert out["noRoute"]
 
     # ground 브라우저 길 = 서버 generate_sections(측점 · 횡단 · 종단)