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


  • National Bridge Inventory (NBI) Statistics
  • 12Number of bridges
  • 69ft / 21.4mTotal length
  • $42,875,000Total costs
  • 294,507Total average daily traffic
  • 1,641Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Islip Terrace
  • No street view available for this location

New bridges in Islip Terrace, NY - historical statistics
  • New bridges - historical statistics
  • 81960-1969
  • 41980-1989
Average Bridge Daily Traffic in Islip Terrace, NY
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 25.0%Good
  • 75.0%Satisfactory
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 25.0%Good
  • 50.0%Satisfactory
  • 25.0%Fair
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Structure Number: 101926,  Location: 0.8 MI E JCT SH 27 & SH 1 (Lat: 40.743186,  Lng: -73.193083),  Route carried "on" structure: County highway ,  Year Built: 1988,  Status: Open,  Structure Length: 6.58m (21.59ft),  Average Daily Traffic: 15,375 (year 2018),  Truck Traffic: 4%,  Average Future Daily Traffic: 18,677 (year 2040),  Design Load: HS 20,  Features Intersected: 27 27 07051132, 27 27,  Facility Carried by Structure: CARLETON AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.303,  Lanes on structure: 6,  Lanes under structure: 10,  Owner: State Highway Agency,  Approaching Roadway Width: 21.9m (71.9ft),  Skew: 20 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 32.3m (106.0ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 21.9m (71.9ft),  Out-to-Out Width: 27.9m (91.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 60.3 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: 23.7 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: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 6.58m (21.59ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $6,323,000,  Roadway Improvement Cost: $3,703,000,  Total Project Cost: $10,026,000 ( 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: 1059919,  Location: 2.5 MI E JCT SH 111 & HSP (Lat: 40.756575,  Lng: -73.195475),  Route carried "on" structure: County highway ,  Year Built: 1961,  Status: Open,  Structure Length: 3.47m (11.38ft),  Average Daily Traffic: 19,651 (year 2018),  Truck Traffic: 2%,  Average Future Daily Traffic: 23,872 (year 2040),  Features Intersected: 908M908M07021134 WB, RTE,  Facility Carried by Structure: CARLETON AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.848,  Lanes on structure: 4,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 21 degrees,  Material/Design: Concrete continuous,  Design/Construction: Frame,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 17.4m (57.1ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 19.8m (65.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 84.7 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: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.47m (11.38ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $3,499,000,  Roadway Improvement Cost: $2,049,000,  Total Project Cost: $5,549,000 ( Estimate for 2021),  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 1059929,  Location: 3.2 MI E JCT SH 111 & HSP (Lat: 40.755078,  Lng: -73.183786),  Route carried "on" structure: City street ,  Year Built: 1961,  Status: Open,  Structure Length: 4.69m (15.39ft),  Average Daily Traffic: 5,701 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 7,053 (year 2040),  Design Load: H 20,  Features Intersected: 908M908M07021141, E/B, R,  Facility Carried by Structure: MANHATTAN BLVD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.949,  Lanes on structure: 4,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 23 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 22.9m (75.1ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 19.6m (64.3ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 53.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of replacement,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.69m (15.39ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Bridge Improvement Cost: $4,999,000,  Roadway Improvement Cost: $2,927,000,  Total Project Cost: $7,926,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1059949,  Location: JCT SH 27 & SSP (Lat: 40.745900,  Lng: -73.178400),  Route carried "on" structure: State highway 908M,  Year Built: 1960,  Status: Open,  Structure Length: 6.71m (22.01ft),  Average Daily Traffic: 40,595 (year 2020),  Truck Traffic: 1%,  Average Future Daily Traffic: 48,287 (year 2040),  Design Load: H 20,  Features Intersected: 27 27 07051140 EB, 27 2
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 23.829,  Lanes on structure: 8,  Lanes under structure: 12,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 37.2m (122.0ft),  Skew: 20 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 37.3m (122.4ft),  Out-to-Out Width: 39.4m (129.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 59.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.4 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: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 6.70m (21.98ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $12,219,000,  Roadway Improvement Cost: $7,155,000,  Total Project Cost: $19,374,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 101926,  Location: 0.8 MI E JCT SH 27 & SH 1 (Lat: 40.743186,  Lng: -73.193083),  Route carried "under" structure: State highway 27,  Year Built: 1988,  Structure Length: 0. m,  Average Daily Traffic: 32,900 (year 1978),  Features Intersected: 27 27 07051132, 27 27,  Facility Carried by Structure: CARLETON AVE
Minimum Vertical Clearance: 4.67m (15.32ft),  Kilometerpoint: 21.126,  Lanes on structure: 6,  Lanes under structure: 3,  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Length of Maximum Span: 32.3m (106.0ft)

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Structure Number: 1059919,  Location: 2.5 MI E JCT SH 111 & HSP (Lat: 40.756575,  Lng: -73.195475),  Route carried "under" structure: State highway 908M,  Year Built: 1961,  Structure Length: 0. m,  Average Daily Traffic: 45,509 (year 2002),  Features Intersected: 908M908M07021134 WB, RTE,  Facility Carried by Structure: CARLETON AVENUE
Minimum Vertical Clearance: 4.19m (13.75ft),  Kilometerpoint: 21.400,  Lanes on structure: 4,  Lanes under structure: 3,  Material/Design: Concrete continuous,  Design/Construction: Frame,  Length of Maximum Span: 17.4m (57.1ft)

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Structure Number: 1059929,  Location: 3.2 MI E JCT SH 111 & HSP (Lat: 40.755078,  Lng: -73.183786),  Route carried "under" structure: State highway 908M,  Year Built: 1961,  Structure Length: 0. m,  Average Daily Traffic: 38,888 (year 2002),  Features Intersected: 908M908M07021141, E/B, R,  Facility Carried by Structure: MANHATTAN BLVD
Minimum Vertical Clearance: 4.04m (13.25ft),  Kilometerpoint: 22.462,  Lanes on structure: 4,  Lanes under structure: 3,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.9m (75.1ft)

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Structure Number: 105993,  Location: 3.6 MI E JCT SH 111 & HSP (Lat: 40.750269,  Lng: -73.180331),  Route carried "under" structure: Other road 908M,  Year Built: 1969,  Structure Length: 0. m,  Average Daily Traffic: 38,888 (year 2002),  Features Intersected: 908M908M07021145 (EB Roa,  Facility Carried by Structure: AT ISLIP TERRACE
Minimum Vertical Clearance: 5.36m (17.59ft),  Kilometerpoint: 23.089,  Lanes under structure: 3,  Material/Design: Steel,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 49.0m (160.8ft)

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Structure Number: 105993,  Location: 3.6 MI E JCT SH 111 & HSP (Lat: 40.750269,  Lng: -73.180331),  Route carried "under" structure: Other road ,  Year Built: 1969,  Structure Length: 0. m,  Features Intersected: 908M908M07021145 (EB Roa,  Facility Carried by Structure: AT ISLIP TERRACE
Minimum Vertical Clearance: 5.36m (17.59ft),  Kilometerpoint: 23.089,  Lanes under structure: 3,  Material/Design: Steel,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 49.0m (160.8ft)

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Structure Number: 1059949,  Location: JCT SH 27 & SSP (Lat: 40.745900,  Lng: -73.178400),  Route carried "under" structure: State highway 27,  Year Built: 1960,  Structure Length: 0. m,  Average Daily Traffic: 25,200 (year 1972),  Features Intersected: 27 27 07051140 EB, 27 2,  Facility Carried by Structure: RTE 908M
Minimum Vertical Clearance: 4.60m (15.09ft),  Kilometerpoint: 22.429,  Lanes on structure: 8,  Lanes under structure: 3,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 16.8m (55.1ft)

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Structure Number: 107231,  Location: .3 MI W JCT SH 27 & HSP (Lat: 40.744331,  Lng: -73.183878),  Route carried "under" structure: State highway ,  Year Built: 1983,  Structure Length: 0. m,  Features Intersected: 27 27 07051136, 27 27,  Facility Carried by Structure: WANTAGH AVE PED B
Minimum Vertical Clearance: 5.05m (16.57ft),  Kilometerpoint: 21.963,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.5m (109.9ft)

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Structure Number: 107231,  Location: .3 MI W JCT SH 27 & HSP (Lat: 40.744331,  Lng: -73.183878),  Route carried "under" structure: State highway 27,  Year Built: 1983,  Structure Length: 0. m,  Average Daily Traffic: 31,800 (year 1977),  Features Intersected: 27 27 07051136, 27 27,  Facility Carried by Structure: WANTAGH AVE PED B
Minimum Vertical Clearance: 5.49m (18.01ft),  Kilometerpoint: 21.963,  Lanes under structure: 3,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.5m (109.9ft)

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