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Bridge Statistics for Ronkonkoma, New York (NY)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 14Number of bridges
  • 98ft / 29.7mTotal length
  • $61,037,000Total costs
  • 551,681Total average daily traffic
  • 46,073Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Ronkonkoma
  • No street view available for this location

Average Bridge Daily Traffic in Ronkonkoma, NY
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 28.6%Very good
  • 71.4%Good
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 28.6%Excellent
  • 28.6%Very good
  • 42.9%Good
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 14.3%Very good
  • 71.4%Good
  • 14.3%Satisfactory
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Structure Number: 1049461,  Location: 2 MI E JCT RTS 454 & I495 (Lat: 40.810833,  Lng: -73.147247),  Route carried "on" structure: Interstate 495,  Year Built: 1998,  Status: Open,  Structure Length: 2.71m (8.89ft),  Average Daily Traffic: 71,649 (year 1997),  Truck Traffic: 13%,  Design Load: HS 25 or greater,  Features Intersected: TERRY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.664,  Lanes on structure: 4,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 22.9m (75.1ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 23.0m (75.5ft),  Out-to-Out Width: 24.7m (81.0ft)

Condition: Deck: Very good,  Superstructure: Excellent,  Substructure: Good,  Operating Rating: 65.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.71m (8.89ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $4,154,000,  Roadway Improvement Cost: $2,433,000,  Total Project Cost: $6,587,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1049462,  Location: 2 MI E JCT RTS 454 & I495 (Lat: 40.810581,  Lng: -73.147108),  Route carried "on" structure: Interstate 495,  Year Built: 1998,  Status: Open,  Structure Length: 2.71m (8.89ft),  Average Daily Traffic: 73,086 (year 2018),  Truck Traffic: 6%,  Average Future Daily Traffic: 76,740 (year 2040),  Design Load: HS 25 or greater,  Features Intersected: TERRY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.664,  Lanes on structure: 4,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 24.1m (79.1ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 24.2m (79.4ft),  Out-to-Out Width: 25.9m (85.0ft)

Condition: Deck: Very good,  Superstructure: Excellent,  Substructure: Satisfactory,  Operating Rating: 65.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.71m (8.89ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $4,415,000,  Roadway Improvement Cost: $2,586,000,  Total Project Cost: $7,001,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1049471,  Location: 3.1 MI E JCT RTS 454&I495 (Lat: 40.812458,  Lng: -73.125056),  Route carried "on" structure: Interstate 495,  Year Built: 1998,  Status: Open,  Structure Length: 4.05m (13.29ft),  Average Daily Traffic: 78,866 (year 2008),  Truck Traffic: 13%,  Design Load: HS 25 or greater,  Features Intersected: OCEAN AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 27.530,  Lanes on structure: 4,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 23.2m (76.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 39.0m (128.0ft),  Curb-To-Curb Width: 23.0m (75.5ft),  Out-to-Out Width: 24.0m (78.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 84.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.05m (13.29ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Bridge Improvement Cost: $5,717,000,  Roadway Improvement Cost: $3,348,000,  Total Project Cost: $9,065,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1049472,  Location: 3.1 MI E JCT RTS 454&I495 (Lat: 40.812194,  Lng: -73.125017),  Route carried "on" structure: Interstate 495,  Year Built: 1998,  Status: Open,  Structure Length: 4.05m (13.29ft),  Average Daily Traffic: 81,156 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 85,214 (year 2040),  Design Load: HS 25 or greater,  Features Intersected: OCEAN AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 27.530,  Lanes on structure: 4,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 24.1m (79.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 39.0m (128.0ft),  Curb-To-Curb Width: 24.2m (79.4ft),  Out-to-Out Width: 25.2m (82.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Operating Rating: 84.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.05m (13.29ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Bridge Improvement Cost: $5,985,000,  Roadway Improvement Cost: $3,505,000,  Total Project Cost: $9,490,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1049491,  Location: 6.5 MI W JCT RTS I495&112 (Lat: 40.812761,  Lng: -73.119189),  Route carried "on" structure: Interstate 495,  Year Built: 1998,  Status: Open,  Structure Length: 2.71m (8.89ft),  Average Daily Traffic: 78,866 (year 2008),  Truck Traffic: 13%,  Design Load: HS 25 or greater,  Features Intersected: POND ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 28.029,  Lanes on structure: 4,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 22.9m (75.1ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 23.0m (75.5ft),  Out-to-Out Width: 24.7m (81.0ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 84.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.71m (8.89ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $4,314,000,  Roadway Improvement Cost: $2,526,000,  Total Project Cost: $6,840,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1049492,  Location: 6.5 MI W JCT RTS I495&112 (Lat: 40.812489,  Lng: -73.119244),  Route carried "on" structure: Interstate 495,  Year Built: 1998,  Status: Open,  Structure Length: 2.71m (8.89ft),  Average Daily Traffic: 81,156 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 85,214 (year 2040),  Design Load: HS 25 or greater,  Features Intersected: POND ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 28.029,  Lanes on structure: 5,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 26.5m (86.9ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 26.6m (87.3ft),  Out-to-Out Width: 28.3m (92.8ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 84.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.71m (8.89ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $4,953,000,  Roadway Improvement Cost: $2,900,000,  Total Project Cost: $7,853,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 226106,  Location: IN RONKONKOMA (Lat: 40.807453,  Lng: -73.111178),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Open,  Structure Length: 10.76m (35.30ft),  Average Daily Traffic: 12,754 (year 2011),  Truck Traffic: 4%,  Average Future Daily Traffic: 15,780 (year 2040),  Design Load: HS 20,  Features Intersected: EASTON STREET, LIRR - MA,  Facility Carried by Structure: RONKONKOMA AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 7,  Owner: County Highway Agency,  Approaching Roadway Width: 17.1m (56.1ft),  Skew: 20 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 26.8m (87.9ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 17.1m (56.1ft),  Out-to-Out Width: 19.3m (63.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 62.6 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: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 10.75m (35.27ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $8,956,000,  Roadway Improvement Cost: $5,245,000,  Total Project Cost: $14,201,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1049461,  Location: 2 MI E JCT RTS 454 & I495 (Lat: 40.810833,  Lng: -73.147247),  Route carried "under" structure: City street ,  Year Built: 1998,  Structure Length: 0. m,  Average Daily Traffic: 4,000 (year 2021),  Features Intersected: TERRY ROAD,  Facility Carried by Structure: RTE I495
Minimum Vertical Clearance: 4.49m (14.73ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.9m (85.0ft)

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Structure Number: 1049462,  Location: 2 MI E JCT RTS 454 & I495 (Lat: 40.810581,  Lng: -73.147108),  Route carried "under" structure: City street ,  Year Built: 1998,  Structure Length: 0. m,  Average Daily Traffic: 4,000 (year 2021),  Features Intersected: TERRY ROAD,  Facility Carried by Structure: RTE I495
Minimum Vertical Clearance: 4.59m (15.06ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.9m (85.0ft)

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Structure Number: 1049471,  Location: 3.1 MI E JCT RTS 454&I495 (Lat: 40.812458,  Lng: -73.125056),  Route carried "under" structure: County highway ,  Year Built: 1998,  Structure Length: 0. m,  Average Daily Traffic: 27,574 (year 2003),  Features Intersected: OCEAN AVENUE,  Facility Carried by Structure: RTE I495
Minimum Vertical Clearance: 4.62m (15.16ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 39.0m (128.0ft)

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Structure Number: 1049472,  Location: 3.1 MI E JCT RTS 454&I495 (Lat: 40.812194,  Lng: -73.125017),  Route carried "under" structure: County highway ,  Year Built: 1998,  Structure Length: 0. m,  Average Daily Traffic: 27,574 (year 2003),  Features Intersected: OCEAN AVENUE,  Facility Carried by Structure: RTE I495
Minimum Vertical Clearance: 5.18m (16.99ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 39.0m (128.0ft)

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Structure Number: 1049491,  Location: 6.5 MI W JCT RTS I495&112 (Lat: 40.812761,  Lng: -73.119189),  Route carried "under" structure: Other road ,  Year Built: 1998,  Structure Length: 0. m,  Average Daily Traffic: 5,500 (year 2021),  Features Intersected: POND ROAD,  Facility Carried by Structure: RTE I495
Minimum Vertical Clearance: 4.39m (14.40ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.9m (85.0ft)

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Structure Number: 1049492,  Location: 6.5 MI W JCT RTS I495&112 (Lat: 40.812489,  Lng: -73.119244),  Route carried "under" structure: Other road ,  Year Built: 1998,  Structure Length: 0. m,  Average Daily Traffic: 5,500 (year 2021),  Features Intersected: POND ROAD,  Facility Carried by Structure: RTE I495
Minimum Vertical Clearance: 4.59m (15.06ft),  Kilometerpoint: 0.000,  Lanes on structure: 5,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.9m (85.0ft)

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Structure Number: 226106,  Location: IN RONKONKOMA (Lat: 40.807453,  Lng: -73.111178),  Route carried "under" structure: City street ,  Year Built: 1990,  Structure Length: 0. m,  Features Intersected: EASTON STREET, LIRR - MA,  Facility Carried by Structure: RONKONKOMA AVENUE
Minimum Vertical Clearance: 5.49m (18.01ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 3,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 26.8m (87.9ft)

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