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Bridge Statistics for Harwinton, Connecticut (CT)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 12Number of bridges
  • 157ft / 47.5mTotal length
  • 71,504Total average daily traffic
  • 5,206Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Harwinton
  • No street view available for this location

New bridges in Harwinton, CT - historical statistics
  • New bridges - historical statistics
  • 11920-1929
  • 11950-1959
  • 61960-1969
  • 21980-1989
  • 11990-1999
  • 12000-2009
Average Bridge Daily Traffic in Harwinton, CT
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 33.3%Good
  • 55.6%Satisfactory
  • 11.1%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 33.3%Good
  • 44.4%Satisfactory
  • 11.1%Fair
  • 11.1%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 44.4%Good
  • 44.4%Satisfactory
  • 11.1%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 28.6%Very good
  • 28.6%Good
  • 28.6%Satisfactory
  • 14.3%Fair
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Structure Number: 1112,  Location: 0.1 MI NO. OF PLYMOUTH TL (Lat: 41.714539,  Lng: -73.011547),  Route carried "on" structure: State highway 72,  Year Built: 1927,  Status: Open,  Structure Length: 1.13m (3.71ft),  Average Daily Traffic: 2,200 (year 2017),  Truck Traffic: 3%,  Average Future Daily Traffic: 3,269 (year 2037),  Design Load: H 15,  Features Intersected: POLAND RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.202,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 97.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 58.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 1732,  Location: AT EXIT 42 (Lat: 41.762433,  Lng: -73.115336),  Route carried "on" structure: State highway 118,  Year Built: 1966,  Status: Open,  Structure Length: 7.94m (26.05ft),  Average Daily Traffic: 9,000 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 13,373 (year 2040),  Design Load: HS 20,  Features Intersected: ROUTE 8
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.838,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 12.5m (41.0ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 22.1m (72.5ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 12.5m (41.0ft),  Out-to-Out Width: 13.9m (45.6ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 80.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 48.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 1733,  Location: 1 MILE NORTH OF EXIT 42 (Lat: 41.777461,  Lng: -73.113550),  Route carried "on" structure: State highway 8,  Year Built: 1966,  Status: Open,  Structure Length: 4.11m (13.48ft),  Average Daily Traffic: 12,250 (year 2018),  Truck Traffic: 6%,  Average Future Daily Traffic: 18,202 (year 2038),  Design Load: HS 20,  Features Intersected: BOGUE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 77.007,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.1m (43.0ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.9m (62.0ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 13.1m (43.0ft),  Out-to-Out Width: 14.5m (47.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 48.6 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 37.6 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 1735,  Location: RTE 8 BETWEEN EX 42 & 43 (Lat: 41.785878,  Lng: -73.108708),  Route carried "on" structure: City street ,  Year Built: 1966,  Status: Open,  Structure Length: 12.44m (40.81ft),  Average Daily Traffic: 508 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 755 (year 2040),  Design Load: HS 20,  Features Intersected: ROUTE 8,  Facility Carried by Structure: 24 BUMPER ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 35.4m (116.1ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.8m (35.4ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 75.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 45.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Other Special Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Other Special Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 1847,  Location: 0.2 MI NORTH THOMASTON TL (Lat: 41.709628,  Lng: -73.058683),  Route carried "on" structure: State highway 222,  Year Built: 1960,  Year Reconstructed: 2008,  Status: Open,  Structure Length: 10.67m (35.01ft),  Average Daily Traffic: 850 (year 2017),  Truck Traffic: 5%,  Average Future Daily Traffic: 1,263 (year 2037),  Design Load: HS 20,  Features Intersected: LEADMINE BROOK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.295,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 27.0m (88.6ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.6m (31.5ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Very good,  Inventory Rating: 71.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 5052,  Location: APP 200' N OF COVENTRY LN (Lat: 41.757136,  Lng: -73.045444),  Route carried "on" structure: City street ,  Year Built: 1997,  Status: Open,  Structure Length: 1.34m (4.40ft),  Average Daily Traffic: 632 (year 2018),  Truck Traffic: 2%,  Average Future Daily Traffic: 939 (year 2038),  Design Load: HS 20,  Features Intersected: ROCK BROOK,  Facility Carried by Structure: PLYMOUTH ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 8.7m (28.5ft),  Out-to-Out Width: 9.9m (32.5ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 32.4 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 24.9 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 5058,  Location: N OF 118 OFF DAVIS ROAD (Lat: 41.780603,  Lng: -73.081214),  Route carried "on" structure: City street ,  Year Built: 2009,  Status: Open,  Structure Length: 2.83m (9.28ft),  Average Daily Traffic: 167 (year 2018),  Truck Traffic: 5%,  Average Future Daily Traffic: 248 (year 2038),  Features Intersected: LAKE HARWINTON DAM,  Facility Carried by Structure: CATLIN ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 6,  Length of Maximum Span: 4.3m (14.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Channel: Very good,  Culverts: Good,  Operating Rating: 52.6 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 5059,  Location: TORRINGTON-HARWINTON T.L. (Lat: 41.777022,  Lng: -73.118375),  Route carried "on" structure: City street ,  Year Built: 1956,  Status: Open,  Structure Length: 4.75m (15.58ft),  Average Daily Traffic: 897 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,333 (year 2038),  Design Load: H 20,  Features Intersected: NAUGATUCK RIVER,  Facility Carried by Structure: BOGUE ROAD #1
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.752,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 23.2m (76.1ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 7.8m (25.6ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 86.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 51.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 5371,  Location: 2.5 MILE SOUTH OF ROUTE 4 (Lat: 41.731867,  Lng: -73.052772),  Route carried "on" structure: City street ,  Year Built: 1985,  Status: Open,  Structure Length: 1.25m (4.10ft),  Average Daily Traffic: 420 (year 2018),  Truck Traffic: 7%,  Average Future Daily Traffic: 624 (year 2038),  Design Load: HS 20,  Features Intersected: ROCK BROOK,  Facility Carried by Structure: SOUTH ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.628,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 7.8m (25.6ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Fair,  Channel: Fair,  Operating Rating: 56.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 5932,  Location: 1.25 MILE SOUTH OF RTE 4 (Lat: 41.753936,  Lng: -73.062722),  Route carried "on" structure: City street ,  Year Built: 1989,  Status: Open,  Structure Length: 1.04m (3.41ft),  Average Daily Traffic: 80 (year 2018),  Truck Traffic: 7%,  Average Future Daily Traffic: 119 (year 2038),  Design Load: HS 20,  Features Intersected: LEADMINE BROOK,  Facility Carried by Structure: SWIMMING HOLE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.9m (16.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.8m (32.2ft),  Curb-To-Curb Width: 4.2m (13.8ft),  Out-to-Out Width: 5.1m (16.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 67.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1732,  Location: AT EXIT 42 (Lat: 41.762433,  Lng: -73.115336),  Route carried "under" structure: State highway 8,  Year Built: 1966,  Structure Length: 0. m,  Average Daily Traffic: 20,000 (year 2018),  Truck Traffic: 11%,  Features Intersected: ROUTE 8
Minimum Vertical Clearance: 5.49m (18.01ft),  Kilometerpoint: 75.349,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.1m (72.5ft)

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Structure Number: 1735,  Location: RTE 8 BETWEEN EX 42 & 43 (Lat: 41.785878,  Lng: -73.108708),  Route carried "under" structure: State highway 8,  Year Built: 1966,  Structure Length: 0. m,  Average Daily Traffic: 24,500 (year 2018),  Truck Traffic: 7%,  Features Intersected: ROUTE 8,  Facility Carried by Structure: 24 BUMPER ROAD
Minimum Vertical Clearance: 6.83m (22.41ft),  Kilometerpoint: 78.021,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 35.4m (116.1ft)

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