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


  • National Bridge Inventory (NBI) Statistics
  • 19Number of bridges
  • 200ft / 61.4mTotal length
  • 33,275Total average daily traffic
  • 7,131Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Niantic
  • No street view available for this location

New bridges in Niantic, IL - historical statistics
  • New bridges - historical statistics
  • 71970-1979
  • 61980-1989
  • 21990-1999
  • 32000-2009
  • 12020-2022
Average Bridge Daily Traffic in Niantic, IL
Average Bridge Truck Traffic in Niantic, IL
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 5.9%Excellent
  • 5.9%Very good
  • 41.2%Good
  • 17.6%Satisfactory
  • 23.5%Poor
  • 5.9%Serious
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 5.9%Excellent
  • 5.9%Very good
  • 35.3%Good
  • 17.6%Satisfactory
  • 5.9%Fair
  • 23.5%Poor
  • 5.9%Serious
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 5.9%Excellent
  • 17.6%Very good
  • 23.5%Good
  • 23.5%Satisfactory
  • 23.5%Fair
  • 5.9%Critical
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 33.3%Very good
  • 26.7%Good
  • 6.7%Satisfactory
  • 33.3%Fair
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Structure Number: 113283,  Location: 5.5 M ENE MT AUBURN (Lat: 39.803019,  Lng: -89.156225),  Route carried "on" structure: County highway ,  Year Built: 1980,  Status: Open,  Structure Length: 14.97m (49.11ft),  Average Daily Traffic: 550 (year 2021),  Truck Traffic: 16%,  Average Future Daily Traffic: 701 (year 2032),  Design Load: HS 20,  Features Intersected: SANGAMON RIVER,  Facility Carried by Structure: FAS 644
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.016,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 29.6m (97.1ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Good,  Superstructure: Fair,  Substructure: Very good,  Channel: Good,  Operating Rating: 51.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 30.8 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: 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,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: November 2019,  Underwater Inspection Date: October 2016,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 58006,  Location: 1.5 MI SW NIANTIC (Lat: 39.836511,  Lng: -89.198750),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Open,  Structure Length: 7.88m (25.85ft),  Average Daily Traffic: 50 (year 2020),  Truck Traffic: 6%,  Average Future Daily Traffic: 103 (year 2032),  Design Load: HS 15,  Features Intersected: I-72,  Facility Carried by Structure: TR 4(ACOM RD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.916,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Steel continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 31.9m (104.7ft),  Curb-To-Curb Width: 8.1m (26.6ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 70.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 41.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Critical Feature Inspection Date: April 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 580061,  Location: 1 MI S OF NIANTIC (Lat: 39.834433,  Lng: -89.156492),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Open,  Structure Length: 8.35m (27.40ft),  Average Daily Traffic: 625 (year 2020),  Truck Traffic: 22%,  Average Future Daily Traffic: 722 (year 2032),  Design Load: HS 20,  Features Intersected: I-72,  Facility Carried by Structure: CH 55(FAS 644)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.062,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 14.0m (45.9ft),  Skew: 31 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: 33.5m (109.9ft),  Curb-To-Curb Width: 13.6m (44.6ft),  Out-to-Out Width: 19.5m (64.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 57.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 34.7 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: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Other
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Structure Number: 583198,  Location: 3.3 MI S NIANTIC (Lat: 39.807506,  Lng: -89.156169),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 3.43m (11.25ft),  Average Daily Traffic: 600 (year 2020),  Truck Traffic: 22%,  Average Future Daily Traffic: 619 (year 2032),  Design Load: HS 20,  Features Intersected: OVERFLOW OF SANGAMON,  Facility Carried by Structure: FAS 644(CH 55)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.104,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.9m (22.6ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.3m (37.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 52.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 31.4 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: 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: January 2022,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 583224,  Location: N EDGE OF NIANTIC (Lat: 39.859058,  Lng: -89.161181),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Posted for load,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 700 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 1,650 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: CH 19 EXTENSION IL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.550,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 6.6m (21.7ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 11.8m (38.7ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Critical,  Channel: Good,  Operating Rating: 16.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 9.7 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: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Designated Inspection Frequency: Every 24 months,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: Febuary 2022,  Other Special Inspection Date: August 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 583241,  Location: 3 MI S OF NIANTIC (Lat: 39.811847,  Lng: -89.156172),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 3.43m (11.25ft),  Average Daily Traffic: 575 (year 2020),  Truck Traffic: 21%,  Average Future Daily Traffic: 619 (year 2032),  Design Load: HS 20,  Features Intersected: OVERFLOW SANGAMON R,  Facility Carried by Structure: FAS 644(CH 55)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.637,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.6m (21.7ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.3m (37.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Serious,  Superstructure: Serious,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 46.7 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: High priority of corrective action,  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: January 2022,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 583258,  Location: 1.7 MI W NIANTIC (Lat: 39.860192,  Lng: -89.198683),  Route carried "on" structure: County highway ,  Year Built: 1985,  Status: Open,  Structure Length: 2.77m (9.09ft),  Average Daily Traffic: 100 (year 2020),  Truck Traffic: 6%,  Average Future Daily Traffic: 103 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: TR 4(ACOM ROAD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.325,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.5m (14.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 13.7m (44.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Fair,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 583259,  Location: 1 MI NW NIANTIC (Lat: 39.862581,  Lng: -89.179961),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 1.75m (5.74ft),  Average Daily Traffic: 50 (year 2020),  Truck Traffic: 6%,  Average Future Daily Traffic: 77 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: TR 8(MOONEY RD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.099,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.6m (15.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.7m (54.8ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Fair,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 58326,  Location: 1 MI NW NIANTIC (Lat: 39.871114,  Lng: -89.180050),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 2.12m (6.96ft),  Average Daily Traffic: 50 (year 2020),  Truck Traffic: 6%,  Average Future Daily Traffic: 77 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: TR 8(MOONEY RD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.150,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.7m (15.4ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 20.4m (66.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Fair,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 583261,  Location: 2.6 MI NE NIANTIC (Lat: 39.888239,  Lng: -89.143103),  Route carried "on" structure: County highway ,  Year Built: 1982,  Status: Open,  Structure Length: 2.11m (6.92ft),  Average Daily Traffic: 75 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 77 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: TR 20A(N 3RD P M
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.934,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.7m (15.4ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 20.4m (66.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Fair,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 5833,  Location: 3 MI S OF NIANTIC (Lat: 39.806861,  Lng: -89.142317),  Route carried "on" structure: County highway ,  Year Built: 1988,  Status: Open,  Structure Length: 1.63m (5.35ft),  Average Daily Traffic: 50 (year 2020),  Truck Traffic: 8%,  Average Future Daily Traffic: 26 (year 2032),  Design Load: HS 20,  Features Intersected: SANGAMON RIVER TRIB,  Facility Carried by Structure: TR 177(RIVER RD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.448,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.1m (13.5ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 7.6m (24.9ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Fair,  Channel: Fair,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 26.6 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: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 583329,  Location: 3.1 MI NE NIANTIC (Lat: 39.888825,  Lng: -89.122175),  Route carried "on" structure: County highway ,  Year Built: 1995,  Status: Open,  Structure Length: 1.47m (4.82ft),  Average Daily Traffic: 25 (year 2020),  Truck Traffic: 8%,  Average Future Daily Traffic: 26 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: TR 75
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.257,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.6m (47.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2019,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 583338,  Location: 1.2 MI E OF NIANTIC (Lat: 39.861733,  Lng: -89.142897),  Route carried "on" structure: County highway ,  Year Built: 1995,  Status: Open,  Structure Length: 1.60m (5.25ft),  Average Daily Traffic: 75 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 77 (year 2032),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: TR 20 A
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.879,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.3m (50.2ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Precast Panels
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Structure Number: 583346,  Location: .5 MI E OF NIANTIC (Lat: 39.859336,  Lng: -89.148456),  Route carried "on" structure: County highway ,  Year Built: 2001,  Status: Open,  Structure Length: 2.04m (6.69ft),  Average Daily Traffic: 75 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 103 (year 2032),  Design Load: HS 20,  Features Intersected: Trib Long Pt Slough,  Facility Carried by Structure: TR 109 A
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.595,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 5.8m (19.0ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 19.4m (63.6ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Good,  Channel: Very good,  Operating Rating: 65.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 38.9 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: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2022,  Deck Structure Type: Concrete Precast Panels
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Structure Number: 583368,  Location: 1.9 MI N NIANTIC (Lat: 39.881511,  Lng: -89.161889),  Route carried "on" structure: County highway ,  Year Built: 2007,  Status: Open,  Structure Length: 2.16m (7.09ft),  Average Daily Traffic: 300 (year 2020),  Truck Traffic: 10%,  Average Future Daily Traffic: 361 (year 2032),  Design Load: HS 20,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: CH 19 (FAS 555)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.007,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 20.9m (68.6ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: Febuary 2018,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 58339,  Location: 3.2 MI SE NIANTIC (Lat: 39.808875,  Lng: -89.142064),  Route carried "on" structure: County highway ,  Year Built: 2008,  Status: Open,  Structure Length: 1.26m (4.13ft),  Average Daily Traffic: 25 (year 2020),  Truck Traffic: 8%,  Average Future Daily Traffic: 26 (year 2032),  Design Load: HS 20,  Features Intersected: Trib Sangamon River,  Facility Carried by Structure: TR 153
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.371,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.6m (15.1ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.8m (38.7ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2018,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete
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Structure Number: 583413,  Location: 3.25 MI NE NIANTIC (Lat: 39.890264,  Lng: -89.125181),  Route carried "on" structure: County highway ,  Year Built: 2021,  Status: Open,  Structure Length: 1.94m (6.36ft),  Average Daily Traffic: 50 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 52 (year 2032),  Design Load: HS 25 or greater,  Features Intersected: WILLOW BRANCH,  Facility Carried by Structure: TR 30A(STRAWN RD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.918,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 0.0m,  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Excellent,  Channel: Very good,  Operating Rating: 66.7 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: 51.5 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: Superior to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 58006,  Location: 1.5 MI SW NIANTIC (Lat: 39.836511,  Lng: -89.198750),  Route carried "under" structure: Interstate 72,  Year Built: 1976,  Structure Length: 0. m,  Average Daily Traffic: 14,400 (year 2021),  Truck Traffic: 22%,  Features Intersected: I-72,  Facility Carried by Structure: TR 4(ACOM RD)
Minimum Vertical Clearance: 5.00m (16.40ft),  Kilometerpoint: 202.209,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 31.9m (104.7ft)

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Structure Number: 580061,  Location: 1 MI S OF NIANTIC (Lat: 39.834433,  Lng: -89.156492),  Route carried "under" structure: Interstate 72,  Year Built: 1976,  Structure Length: 0. m,  Average Daily Traffic: 14,900 (year 2021),  Truck Traffic: 22%,  Features Intersected: I-72,  Facility Carried by Structure: CH 55(FAS 644)
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 205.878,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.5m (109.9ft)

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