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Bridge Statistics for Alorton, Illinois (IL)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 13Number of bridges
  • 121ft / 37.1mTotal length
  • 249,450Total average daily traffic
  • 35,594Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Alorton
  • No street view available for this location

New bridges in Alorton, IL - historical statistics
  • New bridges - historical statistics
  • 41970-1979
  • 91980-1989
Average Bridge Daily Traffic in Alorton, IL
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 37.5%Very good
  • 37.5%Good
  • 25.0%Satisfactory
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 25.0%Very good
  • 12.5%Satisfactory
  • 25.0%Fair
  • 25.0%Poor
  • 12.5%Critical
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 12.5%Very good
  • 50.0%Good
  • 37.5%Satisfactory
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Structure Number: 820228,  Location: S OF ILL 15/MO.AVE (Lat: 38.577317,  Lng: -90.114650),  Route carried "on" structure: Interstate 255,  Year Built: 1979,  Status: Open,  Structure Length: 3.25m (10.66ft),  Average Daily Traffic: 45,000 (year 2021),  Truck Traffic: 16%,  Average Future Daily Traffic: 44,769 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: BOND AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.036,  Lanes on structure: 6,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 34.1m (111.9ft),  Skew: 30 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 32.0m (105.0ft),  Curb-To-Curb Width: 35.8m (117.5ft),  Out-to-Out Width: 36.9m (121.1ft)

Condition: Deck: Very good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 79.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 47.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  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,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 820229,  Location: 1/2 Mi SO ILL 15 (Lat: 38.578786,  Lng: -90.112686),  Route carried "on" structure: Interstate 255,  Year Built: 1980,  Status: Temporarily open,  Structure Length: 4.79m (15.72ft),  Average Daily Traffic: 45,000 (year 2021),  Truck Traffic: 16%,  Average Future Daily Traffic: 44,769 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: Norfolk Southern RR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.277,  Lanes on structure: 6,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 29.9m (98.1ft),  Skew: 30 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.1m (59.4ft),  Curb-To-Curb Width: 38.8m (127.3ft),  Out-to-Out Width: 39.8m (130.6ft)

Condition: Deck: Satisfactory,  Superstructure: Critical,  Substructure: Good,  Operating Rating: 33.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 20.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: High priority of replacement,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 12 months,  Other Special Inspection Frequency: Every 6 months,  Inspection Date: January 2022,  Other Special Inspection Date: January 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 82023,  Location: 1/4 mi S of IL 15 (Lat: 38.580650,  Lng: -90.110200),  Route carried "on" structure: Interstate 255,  Year Built: 1980,  Status: Open,  Structure Length: 3.86m (12.66ft),  Average Daily Traffic: 45,000 (year 2021),  Truck Traffic: 16%,  Average Future Daily Traffic: 44,769 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: ILL 163
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.583,  Lanes on structure: 6,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 34.1m (111.9ft),  Skew: 30 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 38.1m (125.0ft),  Curb-To-Curb Width: 35.9m (117.8ft),  Out-to-Out Width: 36.9m (121.1ft)

Condition: Deck: Good,  Superstructure: Poor,  Substructure: Satisfactory,  Operating Rating: 91.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 54.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 12 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 820231,  Location: 1.3 MI S OF STATE ST (Lat: 38.582400,  Lng: -90.107842),  Route carried "on" structure: Interstate 255,  Year Built: 1981,  Status: Open,  Structure Length: 6.19m (20.31ft),  Average Daily Traffic: 47,800 (year 2021),  Truck Traffic: 17%,  Average Future Daily Traffic: 46,965 (year 2032),  Design Load: HS 20,  Features Intersected: ILL 15
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.857,  Lanes on structure: 6,  Lanes under structure: 6,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 34.1m (111.9ft),  Skew: 30 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Number Of Approach Spans: 2,  Length of Maximum Span: 32.0m (105.0ft),  Curb-To-Curb Width: 42.2m (138.5ft),  Out-to-Out Width: 45.0m (147.6ft)

Condition: Deck: Satisfactory,  Superstructure: Poor,  Substructure: Good,  Operating Rating: 74.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 44.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 12 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 820259,  Location: 050 MI NW ILL 163 (Lat: 38.593722,  Lng: -90.120783),  Route carried "on" structure: State highway 15,  Year Built: 1980,  Status: Open,  Structure Length: 5.88m (19.29ft),  Average Daily Traffic: 12,400 (year 2021),  Truck Traffic: 9%,  Average Future Daily Traffic: 18,828 (year 2032),  Design Load: HS 20,  Features Intersected: A&S RAILROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.520,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 21.9m (71.9ft),  Skew: 30 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 23.2m (76.1ft),  Curb-To-Curb Width: 21.9m (71.9ft),  Out-to-Out Width: 27.2m (89.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Satisfactory,  Operating Rating: 55.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 27.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present desirable 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: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 82026,  Location: 0.2mi S of IL 15 (Lat: 38.581231,  Lng: -90.110900),  Route carried "on" structure: Other road ,  Year Built: 1979,  Status: Open,  Structure Length: 3.65m (11.98ft),  Average Daily Traffic: 1,100 (year 2018),  Truck Traffic: 5%,  Average Future Daily Traffic: 994 (year 2032),  Design Load: HS 20,  Features Intersected: IL 163,  Facility Carried by Structure: IL15 Ramp G to SB2
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.708,  Lanes on structure: 1,  Lanes under structure: 2,  Base Highway Network: Yes (Inventory Route: 10255040,  Subroute: 40),  Owner: State Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 36.0m (118.1ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.9m (29.2ft)

Condition: Deck: Very good,  Superstructure: Fair,  Substructure: Good,  Operating Rating: 57.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 34.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  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: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 820262,  Location: 0.2mi S of IL 15 (Lat: 38.580381,  Lng: -90.109961),  Route carried "on" structure: Other road ,  Year Built: 1980,  Status: Open,  Structure Length: 3.58m (11.75ft),  Average Daily Traffic: 6,500 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 6,276 (year 2032),  Design Load: HS 20,  Features Intersected: IL 163,  Facility Carried by Structure: 255NB Ramp E to IL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.338,  Lanes on structure: 1,  Lanes under structure: 2,  Base Highway Network: Yes (Inventory Route: 10255040,  Subroute: 40),  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 35.1m (115.2ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.9m (29.2ft)

Condition: Deck: Good,  Superstructure: Fair,  Substructure: Good,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 58.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of replacement,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 820267,  Location: 39TH & BOND ALORTON (Lat: 38.589086,  Lng: -90.127581),  Route carried "on" structure: Other road ,  Year Built: 1980,  Status: Open,  Structure Length: 5.91m (19.39ft),  Average Daily Traffic: 4,000 (year 2018),  Truck Traffic: 7%,  Average Future Daily Traffic: 4,759 (year 2032),  Design Load: HS 20,  Features Intersected: ALTON&SOUTHERN RR,  Facility Carried by Structure: BOND AVE/ FAU 9189
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.265,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 23.0m (75.5ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.4m (30.8ft),  Out-to-Out Width: 11.8m (38.7ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 71.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 42.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Meets minimum limits,  Underclear: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 48 months,  Inspection Date: August 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: 820228,  Location: S OF ILL 15/MO.AVE (Lat: 38.577317,  Lng: -90.114650),  Route carried "under" structure: Other road ,  Year Built: 1979,  Structure Length: 0. m,  Average Daily Traffic: 4,600 (year 2018),  Truck Traffic: 4%,  Features Intersected: BOND AVE,  Facility Carried by Structure: FAI 255
Minimum Vertical Clearance: 4.57m (14.99ft),  Kilometerpoint: 6.003,  Lanes on structure: 6,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.0m (105.0ft)

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Structure Number: 82023,  Location: 1/4 mi S of IL 15 (Lat: 38.580650,  Lng: -90.110200),  Route carried "under" structure: State highway 163,  Year Built: 1980,  Structure Length: 0. m,  Average Daily Traffic: 2,450 (year 2021),  Truck Traffic: 7%,  Features Intersected: ILL 163,  Facility Carried by Structure: FAI 255
Minimum Vertical Clearance: 6.63m (21.75ft),  Kilometerpoint: 14.419,  Lanes on structure: 6,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 38.1m (125.0ft)

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Structure Number: 820231,  Location: 1.3 MI S OF STATE ST (Lat: 38.582400,  Lng: -90.107842),  Route carried "under" structure: State highway 15,  Year Built: 1981,  Structure Length: 0. m,  Average Daily Traffic: 30,700 (year 2021),  Truck Traffic: 10%,  Features Intersected: ILL 15,  Facility Carried by Structure: FAI 255
Minimum Vertical Clearance: 5.77m (18.93ft),  Kilometerpoint: 7.210,  Lanes on structure: 6,  Lanes under structure: 6,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.0m (105.0ft)

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Structure Number: 82026,  Location: 0.2mi S of IL 15 (Lat: 38.581231,  Lng: -90.110900),  Route carried "under" structure: State highway 163,  Year Built: 1979,  Structure Length: 0. m,  Average Daily Traffic: 2,450 (year 2021),  Truck Traffic: 7%,  Features Intersected: IL 163,  Facility Carried by Structure: IL15 Ramp G to SB2
Minimum Vertical Clearance: 5.21m (17.09ft),  Kilometerpoint: 14.500,  Lanes on structure: 1,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 36.0m (118.1ft)

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Structure Number: 820262,  Location: 0.2mi S of IL 15 (Lat: 38.580381,  Lng: -90.109961),  Route carried "under" structure: State highway 163,  Year Built: 1980,  Structure Length: 0. m,  Average Daily Traffic: 2,450 (year 2021),  Truck Traffic: 7%,  Features Intersected: IL 163,  Facility Carried by Structure: 255NB Ramp E to IL
Minimum Vertical Clearance: 6.25m (20.51ft),  Kilometerpoint: 14.371,  Lanes on structure: 1,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 35.1m (115.2ft)

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