diff --git a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.css b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.css
index 3a0150dd30..adc08aa338 100644
--- a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.css
+++ b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.css
@@ -49,6 +49,32 @@ limitations under the License.
   top: 45%;
   height: 11%;
   z-index: 2;
+  overflow: hidden;
+}
+
+.SpanBar--criticalPath::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  width: 10%;
+  height: 100%;
+  visibility: hidden;
+  background-color: white;
+  border: 1px solid white;
+}
+
+.SpanBar--criticalPath:hover::before {
+  visibility: visible;
+  animation: runOnce 2s forwards;
+}
+
+@keyframes runOnce {
+  0% {
+    left: 0;
+  }
+  100% {
+    left: 100%;
+  }
 }
 
 .SpanBar--label {
@@ -85,6 +111,8 @@ limitations under the License.
 
 .SpanBar--logMarker:hover {
   background-color: #000;
+  transform: scale(1.2);
+  transition: transform 0.3s ease;
 }
 
 .SpanBar--logMarker::before,
@@ -94,7 +122,7 @@ limitations under the License.
   top: 0;
   bottom: 0;
   right: 0;
-  border: 1px solid transparent;
+  border: 3px solid transparent;
 }
 
 .SpanBar--logMarker::after {
diff --git a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.tsx b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.tsx
index 5d08301040..7f9447ef8a 100644
--- a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.tsx
+++ b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanBar.tsx
@@ -13,7 +13,7 @@
 // limitations under the License.
 
 import React, { useState } from 'react';
-import { Popover } from 'antd';
+import { Popover, Tooltip } from 'antd';
 import _groupBy from 'lodash/groupBy';
 
 import AccordianLogs from './SpanDetail/AccordianLogs';
@@ -124,7 +124,7 @@ function SpanBar(props: TCommonProps) {
             <div
               data-testid="SpanBar--logMarker"
               className="SpanBar--logMarker"
-              style={{ left: positionKey }}
+              style={{ left: positionKey, zIndex: 3 }}
             />
           </Popover>
         ))}
@@ -146,16 +146,25 @@ function SpanBar(props: TCommonProps) {
           const criticalPathViewEnd = critcalPathViewBounds.end;
           const key = `${each.spanId}-${index}`;
           return (
-            <div
-              key={key}
-              data-testid="SpanBar--criticalPath"
-              className="SpanBar--criticalPath"
-              style={{
-                background: 'black',
-                left: toPercentInDecimal(criticalPathViewStart),
-                width: toPercentInDecimal(criticalPathViewEnd - criticalPathViewStart),
-              }}
-            />
+            <Tooltip
+              placement="top"
+              title={
+                <div>
+                  A segment on the <em>critical path</em> of the overall trace/request/workflow.
+                </div>
+              }
+            >
+              <div
+                key={key}
+                data-testid="SpanBar--criticalPath"
+                className="SpanBar--criticalPath"
+                style={{
+                  background: 'black',
+                  left: toPercentInDecimal(criticalPathViewStart),
+                  width: toPercentInDecimal(criticalPathViewEnd - criticalPathViewStart),
+                }}
+              />
+            </Tooltip>
           );
         })}
     </div>
diff --git a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.test.js b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.test.js
index 34038f55f3..16c767ca35 100644
--- a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.test.js
+++ b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.test.js
@@ -13,6 +13,7 @@
 // limitations under the License.
 import React from 'react';
 import { shallow, mount } from 'enzyme';
+import { render, screen } from '@testing-library/react';
 
 import ListView from './ListView';
 import SpanBarRow from './SpanBarRow';
@@ -25,6 +26,8 @@ import updateUiFindSpy from '../../../utils/update-ui-find';
 import * as linkPatterns from '../../../model/link-patterns';
 import memoizedTraceCriticalPath from '../CriticalPath/index';
 
+import criticalPathTest from '../CriticalPath/testCases/test2';
+
 jest.mock('./SpanTreeOffset');
 jest.mock('../../../utils/update-ui-find');
 
@@ -326,6 +329,26 @@ describe('<VirtualizedTraceViewImpl>', () => {
       ).toBe(true);
     });
 
+    it('renders Critical Path segments when row is not collapsed', () => {
+      wrapper.setProps({
+        trace: criticalPathTest.trace,
+        criticalPath: criticalPathTest.criticalPathSections,
+      });
+      render(instance.renderRow('some-key', {}, 0, {}));
+      expect(screen.getAllByTestId('SpanBar--criticalPath').length).toBe(2);
+    });
+
+    it('renders Critical Path segments are merged if consecutive when row is collapased', () => {
+      const childrenHiddenIDs = new Set([criticalPathTest.trace.spans[0].spanID]);
+      wrapper.setProps({
+        childrenHiddenIDs,
+        trace: criticalPathTest.trace,
+        criticalPath: criticalPathTest.criticalPathSections,
+      });
+      render(instance.renderRow('some-key', {}, 0, {}));
+      expect(screen.getAllByTestId('SpanBar--criticalPath').length).toBe(1);
+    });
+
     it('renders a SpanBarRow with a RPC span if the row is collapsed and a client span', () => {
       const clientTags = [{ key: 'span.kind', value: 'client' }, ...trace.spans[0].tags];
       const serverTags = [{ key: 'span.kind', value: 'server' }, ...trace.spans[1].tags];
diff --git a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.tsx b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.tsx
index 0b1e5c21ea..e0cfbeecba 100644
--- a/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.tsx
+++ b/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/VirtualizedTraceView.tsx
@@ -158,6 +158,41 @@ function getCssClasses(currentViewRange: [number, number]) {
   });
 }
 
+function mergeChildrenCriticalPath(
+  trace: Trace,
+  spanID: string,
+  criticalPath: criticalPathSection[]
+): criticalPathSection[] {
+  // Define an array to store the IDs of the span and its descendants (if the span is collapsed)
+  const allRequiredSpanIds = [spanID];
+
+  // If the span is collapsed, recursively find all of its descendants.
+  const findAllDescendants = (currentChildSpanIds: string[]) => {
+    currentChildSpanIds.forEach(eachId => {
+      const currentChildSpan = trace.spans.find(a => a.spanID === eachId)!;
+      if (currentChildSpan.hasChildren) {
+        allRequiredSpanIds.push(...currentChildSpan.childSpanIds);
+        findAllDescendants(currentChildSpan.childSpanIds);
+      }
+    });
+  };
+  findAllDescendants(allRequiredSpanIds);
+
+  const criticalPathSections: criticalPathSection[] = [];
+  criticalPath.forEach(each => {
+    if (allRequiredSpanIds.includes(each.spanId)) {
+      if (criticalPathSections.length !== 0 && each.section_end === criticalPathSections[0].section_start) {
+        // Merge Critical Paths if they are consecutive
+        criticalPathSections[0].section_start = each.section_start;
+      } else {
+        criticalPathSections.unshift({ ...each });
+      }
+    }
+  });
+
+  return criticalPathSections;
+}
+
 const memoizedGenerateRowStates = memoizeOne(generateRowStatesFromTrace);
 const memoizedViewBoundsFunc = memoizeOne(createViewedBoundsFunc, _isEqual);
 const memoizedGetCssClasses = memoizeOne(getCssClasses, _isEqual);
@@ -358,24 +393,9 @@ export class VirtualizedTraceViewImpl extends React.Component<VirtualizedTraceVi
     const isDetailExpanded = detailStates.has(spanID);
     const isMatchingFilter = findMatchesIDs ? findMatchesIDs.has(spanID) : false;
     const showErrorIcon = isErrorSpan(span) || (isCollapsed && spanContainsErredSpan(trace.spans, spanIndex));
-    const criticalPathSections = criticalPath?.filter(each => {
-      if (isCollapsed) {
-        const allChildSpanIds = [spanID, ...childSpanIds];
-        // This function called recursively to find all descendants of a span
-        const findAllDescendants = (currentChildSpanIds: string[]) => {
-          currentChildSpanIds.forEach(eachId => {
-            const currentChildSpan = trace.spans.find(a => a.spanID === eachId)!;
-            if (currentChildSpan.hasChildren) {
-              allChildSpanIds.push(...currentChildSpan.childSpanIds);
-              findAllDescendants(currentChildSpan.childSpanIds);
-            }
-          });
-        };
-        findAllDescendants(childSpanIds);
-        return allChildSpanIds.includes(each.spanId);
-      }
-      return each.spanId === spanID;
-    });
+    const criticalPathSections = isCollapsed
+      ? mergeChildrenCriticalPath(trace, spanID, criticalPath)
+      : criticalPath.filter(each => each.spanId === spanID);
     // Check for direct child "server" span if the span is a "client" span.
     let rpc = null;
     if (isCollapsed) {