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


  • National Bridge Inventory (NBI) Statistics
  • 11Number of bridges
  • 49ft / 15.3mTotal length
  • 2,200Total average daily traffic
  • 224Total average daily truck traffic
  • 2,977Total future (year 2032) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Neponset
  • No street view available for this location

New bridges in Neponset, IL - historical statistics
  • New bridges - historical statistics
  • 11910-1919
  • 21930-1939
  • 21950-1959
  • 31960-1969
  • 11970-1979
  • 11990-1999
  • 12010-2019
Average Bridge Truck Traffic in Neponset, IL
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 14.3%Very good
  • 28.6%Good
  • 28.6%Satisfactory
  • 14.3%Fair
  • 14.3%Serious
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 14.3%Very good
  • 28.6%Good
  • 28.6%Satisfactory
  • 14.3%Fair
  • 14.3%Serious
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 14.3%Very good
  • 14.3%Good
  • 14.3%Satisfactory
  • 57.1%Poor
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 9.1%Very good
  • 9.1%Good
  • 63.6%Satisfactory
  • 9.1%Fair
  • 9.1%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 25.0%Very good
  • 50.0%Satisfactory
  • 25.0%Fair
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Structure Number: 62005,  Location: 0.6 MI NE NEPONSET (Lat: 41.305631,  Lng: -89.770131),  Route carried "on" structure: US 34,  Year Built: 1974,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 1,400 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,749 (year 2032),  Design Load: HS 20,  Features Intersected: E. FORK SPOON RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 147.203,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 10.8m (35.4ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 2.7m (8.9ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  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: 86.2 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,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Superior to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021
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Structure Number: 64203,  Location: 7 MI SW OF BUDA (Lat: 41.263181,  Lng: -89.737853),  Route carried "on" structure: County highway ,  Year Built: 1910,  Status: Posted for load,  Structure Length: 1.58m (5.18ft),  Average Daily Traffic: 50 (year 2010),  Average Future Daily Traffic: 55 (year 2032),  Features Intersected: SPOON RIVER,  Facility Carried by Structure: TR 343
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.094,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 5.8m (19.0ft),  Out-to-Out Width: 6.1m (20.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 11.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 6.8 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: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 64256,  Location: 1.5 MI. SE. NEPONSET (Lat: 41.274433,  Lng: -89.750900),  Route carried "on" structure: County highway ,  Year Built: 1965,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 25 (year 2010),  Average Future Daily Traffic: 27 (year 2032),  Design Load: HS 15,  Features Intersected: SPOON RIVER EAST FOR,  Facility Carried by Structure: TR 68
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.168,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.9m (16.1ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 41.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 24.6 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: Better than present minimum 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
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Structure Number: 64257,  Location: 3 MI S OF NEPONSET (Lat: 41.250661,  Lng: -89.809150),  Route carried "on" structure: County highway ,  Year Built: 1965,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 25 (year 2010),  Average Future Daily Traffic: 27 (year 2032),  Design Load: HS 15,  Features Intersected: W FORK SPOON RIVER,  Facility Carried by Structure: TR 34
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.628,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.7m (15.4ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.9m (22.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Poor,  Channel: Fair,  Operating Rating: 42.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 17.5 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: November 2021,  Other Special Inspection Date: November 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 64258,  Location: 3 MI S OF NEPONSET (Lat: 41.248925,  Lng: -89.809189),  Route carried "on" structure: County highway ,  Year Built: 1961,  Status: Open,  Structure Length: 1.98m (6.50ft),  Average Daily Traffic: 25 (year 2010),  Average Future Daily Traffic: 27 (year 2032),  Design Load: HS 15,  Features Intersected: W FORK SPOON RIVER,  Facility Carried by Structure: TR 34
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.821,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.9m (22.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 43.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 26.2 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: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 64261,  Location: 4 MI SW OF NEPONSET (Lat: 41.243156,  Lng: -89.828525),  Route carried "on" structure: County highway ,  Year Built: 1956,  Status: Open,  Structure Length: 1.77m (5.81ft),  Average Daily Traffic: 75 (year 2018),  Average Future Daily Traffic: 27 (year 2032),  Design Load: HS 15,  Features Intersected: W FORK SPOON RIVER,  Facility Carried by Structure: TR 18
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.464,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.8m (22.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 46.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 18.8 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: November 2021,  Other Special Inspection Date: November 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 64262,  Location: 1 MI SE OF NEPONSET (Lat: 41.285300,  Lng: -89.763953),  Route carried "on" structure: County highway ,  Year Built: 1959,  Status: Open,  Structure Length: 1.49m (4.89ft),  Average Daily Traffic: 25 (year 2020),  Average Future Daily Traffic: 27 (year 2032),  Design Load: HS 15,  Features Intersected: SPOON RIVER EAST FOR,  Facility Carried by Structure: TR 329
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.688,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.9m (16.1ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Serious,  Superstructure: Serious,  Substructure: Poor,  Channel: Good,  Operating Rating: 38.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 14.9 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: 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,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: November 2021,  Other Special Inspection Date: November 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 64263,  Location: 3 Mi S Neponset (Lat: 41.247022,  Lng: -89.789844),  Route carried "on" structure: County highway ,  Year Built: 2013,  Status: Open,  Structure Length: 2.41m (7.91ft),  Average Daily Traffic: 25 (year 2010),  Average Future Daily Traffic: 27 (year 2033),  Design Load: HS 25 or greater,  Features Intersected: W Fork Spoon River,  Facility Carried by Structure: TR 46
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.715,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 22.6m (74.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 42.1 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2019,  Deck Structure Type: Concrete Precast Panels
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Structure Number: 65015,  Location: 3 MI SW NEPONSET (Lat: 41.256331,  Lng: -89.811972),  Route carried "on" structure: County highway ,  Year Built: 1936,  Status: Open,  Structure Length: 0.94m (3.08ft),  Average Daily Traffic: 425 (year 2020),  Truck Traffic: 19%,  Average Future Daily Traffic: 820 (year 2032),  Features Intersected: BR OF W FORK SPOON R,  Facility Carried by Structure: COUNTY HIGHWAY 16
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.814,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.3m (14.1ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 40.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.3 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020
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Structure Number: 65016,  Location: 2 MI W OF NEPONSET (Lat: 41.292658,  Lng: -89.837772),  Route carried "on" structure: County highway ,  Year Built: 1935,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 50 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 109 (year 2032),  Design Load: HS 15,  Features Intersected: MUD CREEK,  Facility Carried by Structure: TR 14
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.720,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Poor,  Culverts: Fair,  Operating Rating: 40.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.3 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: 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: November 2021,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 65017,  Location: 1 MI. E. NEPONSET (Lat: 41.300111,  Lng: -89.764333),  Route carried "on" structure: County highway ,  Year Built: 1993,  Status: Open,  Structure Length: 0.63m (2.07ft),  Average Daily Traffic: 75 (year 2010),  Truck Traffic: 4%,  Average Future Daily Traffic: 82 (year 2032),  Design Load: HS 20,  Features Intersected: E Fork Spoon River,  Facility Carried by Structure: TR-321 Cannonball
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.336,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.2m (10.5ft)

Condition: Channel: Satisfactory,  Culverts: Very good,  Operating Rating: 59.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 35.6 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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2019
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