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Sumner Tunnel: History & Measurement

The Sumner Tunnel is a road tunnel in Boston, Massachusetts, United States. It carries traffic under Boston Harbor in one direction, from Logan International Airport and Route 1A in East Boston. The tunnel originally deposited traffic at the west side of the North End, but with the completion of the Big Dig, it was modified to have two exits. One exit…

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Sumner Tunnel topic overview

The analysis highlights History and Measurement as prominent areas in the source structure around Sumner Tunnel.

Related topics
25
Source areas
2
Connected nodes
27
Extracted relationships
35
Concept neighborhoods
22
Bridge connections
27

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 17 topics
History · 8 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Owner
Commonwealth of Massachusetts
Location
Boston, Massachusetts
Constructed
March 30, 1931 – June 30, 1934
End
Downtown Boston
Length
1.079 mi (1.736 km)
No. of lanes
2

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Sumner Tunnel connects Entity context

The extracted context around Sumner Tunnel shows recurring relationship patterns in the source. For example, Sumner Tunnel → Callahan Tunnel, Governor Increase Sumner, It, June, Massachusetts Department, Massachusetts Turnpike Authority, Sumner, The Sumner Tunnel, Transportation, Until, William Another extracted example is Sumner Tunnel → Healey Library, Joseph, Massachusetts Boston, Special Collections, University, University Archives. Use these groups to spot repeated connection types before inspecting the individual relationships.

Sumner Tunnel

Top relations

related to history · 11
Sumner Tunnel → Callahan Tunnel, Governor Increase Sumner, It, June, Massachusetts Department, Massachusetts Turnpike Authority, Sumner, The Sumner Tunnel, Transportation, Until, William
related to External links · 6
Sumner Tunnel → Healey Library, Joseph, Massachusetts Boston, Special Collections, University, University Archives
Constructed · 1
Sumner Tunnel → March 30, 1931 – June 30, 1934
Coordinates · 1
Sumner Tunnel → .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-pars…
End · 1
Sumner Tunnel → Downtown Boston
Length · 1
Sumner Tunnel → 1.079 mi (1.736 km)
Location · 1
Sumner Tunnel → Boston, Massachusetts
No. of lanes · 1
Sumner Tunnel → 2
Opened · 1
Sumner Tunnel → June 30, 1934; 92 years ago (June 30, 1934)
Operating speed · 1
Sumner Tunnel → 40 mph (64 km/h)

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

tunnel massachusetts boston sumner traffic route exit toll e-zpass turnpike i-93 end department transportation vehicles one connects 1a east downtown

Sumner Tunnel relationships Subject–Predicate–Object triples

TTTA extracted 35 structured relationships around Sumner Tunnel. Examples in this analysis include Sumner Tunnel → Constructed → March 30, 1931 – June 30, 1934 and Sumner Tunnel → Coordinates → .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-pars…. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Sumner TunnelConstructedMarch 30, 1931 – June 30, 19341.00infobox
Sumner TunnelCoordinates.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-pars…1.00infobox
Sumner TunnelEndDowntown Boston1.00infobox
Sumner TunnelLength1.079 mi (1.736 km)1.00infobox
Sumner TunnelLocationBoston, Massachusetts1.00infobox
Sumner TunnelNo. of lanes21.00infobox
Sumner TunnelOpenedJune 30, 1934; 92 years ago (June 30, 1934)1.00infobox
Sumner TunnelOperating speed40 mph (64 km/h)1.00infobox
Sumner TunnelOperatorMassachusetts Department of Transportation1.00infobox
Sumner TunnelOwnerCommonwealth of Massachusetts1.00infobox
Sumner TunnelRouteRoute 1A south1.00infobox
Sumner TunnelStartEast Boston1.00infobox
Sumner TunnelStatusOpen1.00infobox
Sumner TunnelTollBetween $0.20 and $2.05 depending on payment method and residency1.00infobox
Sumner TunnelTrafficAutomotive1.00infobox
Sumner TunnelTunnel clearance12.6 ft (3.8 m)1.00infobox
Sumner TunnelWidth22.2 ft (6.8 m)1.00infobox
Sumner Tunnelis aroad tunnel in Boston0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Sumner Tunnel bring nearby vocabulary together. In this analysis, examples include Tunnel, Boston and Toll. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • boston
    • Massachusetts
    • Tunnel
    • 1a
    • Downtown
    • East
    • One
    • Sumner
    • Callahan
    • Exit
    • Route
    • Toll
    • Traffic
  • boston harbor
    • Massachusetts
    • Tunnel
    • 1a
    • Downtown
    • East
    • One
    • Sumner
    • Callahan
    • Exit
    • Route
    • Toll
    • Traffic
  • east boston
    • Route
    • Km
    • Opened
    • Traffic
    • Downtown
    • One
    • Massachusetts
    • Tunnel
    • 1a
    • Department
    • East
    • End
  • massachusetts turnpike
    • Authority
    • Williams
    • Turnpike
    • Department
    • Transportation
    • Toll
    • Tunnel
    • Managed
    • Southbound
    • Ted
    • Vehicles
    • Callahan
  • massachusetts department of transportation
    • Transportation
    • Managed
    • Turnpike
    • Department
    • Km
    • Massachusetts
    • Opened
    • Toll
    • Authority
    • Downtown
    • East
    • Tunnel
  • massachusetts turnpike authority
    • Authority
    • Turnpike
    • Williams
    • Department
    • Direction
    • Managed
    • Southbound
    • Transportation
    • Toll
    • Tunnel
    • Massachusetts
    • Ted
  • Sumner Tunnel
    • Tunnel
    • Boston
    • Toll
    • Williams
    • Turnpike
    • Km
    • Massachusetts
    • Opened
    • 1a
    • Directions
    • Downtown
    • East
  • sumner tunnel
    • Tunnel
    • Callahan
    • Boston
    • Toll
    • Directions
    • Williams
    • Turnpike
    • Km
    • Massachusetts
    • Opened
    • 1a
    • Downtown

Connections between topic areas Semantic bridges

For Sumner Tunnel, one of the stronger structural bridges in this analysis connects Sumner Tunnel with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Sumner Tunnel — Overview · splits 10 ⟂ 18
Sumner Tunnel — History · splits 19 ⟂ 9

Map overview Semantic statistics

Sumner Tunnel

Nodes28
Edges27
Triples35
Avg. degree1.93
Density0.071429
Components1

Source & methodology

TTTA analyzes the structure around Sumner Tunnel to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Sumner Tunnel · EN edition · Analysis: TopicsToTalkAbout

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