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


  • National Bridge Inventory (NBI) Statistics
  • 13Number of bridges
  • 174ft / 53.3mTotal length
  • $158,000Total costs
  • 20,100Total average daily traffic
  • 1,560Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Mackinaw
  • No street view available for this location

New bridges in Mackinaw, IL - historical statistics
  • New bridges - historical statistics
  • 11900-1909
  • 21920-1929
  • 11950-1959
  • 31960-1969
  • 21970-1979
  • 11980-1989
  • 11990-1999
  • 22010-2019
Average Bridge Daily Traffic in Mackinaw, IL
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 11.1%Good
  • 11.1%Satisfactory
  • 66.7%Fair
  • 11.1%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 22.2%Very good
  • 22.2%Satisfactory
  • 44.4%Fair
  • 11.1%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 11.1%Very good
  • 44.4%Good
  • 44.4%Satisfactory
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 8.3%Very good
  • 25.0%Good
  • 50.0%Satisfactory
  • 8.3%Fair
  • 8.3%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Good
  • 33.3%Satisfactory
  • 33.3%Fair
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Structure Number: 900063,  Location: 1.5 MI W OF MACKINAW (Lat: 40.522011,  Lng: -89.395617),  Route carried "on" structure: State highway 9,  Year Built: 1929,  Year Reconstructed: 1982,  Status: Open,  Structure Length: 14.94m (49.02ft),  Average Daily Traffic: 3,250 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 3,386 (year 2032),  Design Load: HS 20,  Features Intersected: MACKINAW RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 185.407,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 6,  Length of Maximum Span: 48.8m (160.1ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Poor,  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: 36.0 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,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 12 months,  Inspection Date: March 2020,  Underwater Inspection Date: July 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 900177,  Location: .5 MI W OF MACKINAW (Lat: 40.526697,  Lng: -89.371236),  Route carried "on" structure: State highway 9,  Year Built: 2011,  Status: Open,  Structure Length: 2.85m (9.35ft),  Average Daily Traffic: 3,250 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 3,386 (year 2032),  Design Load: HS 25 or greater,  Features Intersected: MACKINAW RIV TRIB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 187.548,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 27.6m (90.6ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Fair,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 62.2 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: 47.0 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: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 900178,  Location: 2.5 MI W OF MACKINAW (Lat: 40.518344,  Lng: -89.414528),  Route carried "on" structure: State highway 9,  Year Built: 2014,  Status: Open,  Structure Length: 5.75m (18.86ft),  Average Daily Traffic: 3,250 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 2,903 (year 2032),  Design Load: HS 25 or greater,  Features Intersected: MUD CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 183.766,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 70.3 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: 54.1 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: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 903016,  Location: SW-8-T24NR2W (Lat: 40.546736,  Lng: -89.358936),  Route carried "on" structure: County highway ,  Year Built: 1957,  Status: Open,  Structure Length: 11.20m (36.75ft),  Average Daily Traffic: 3,900 (year 2018),  Truck Traffic: 3%,  Average Future Daily Traffic: 3,978 (year 2032),  Design Load: HS 20,  Features Intersected: MACKINAW RIVER,  Facility Carried by Structure: FAS 470 - CH 6
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 21.178,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 31.1m (102.0ft),  Curb-To-Curb Width: 9.6m (31.5ft),  Out-to-Out Width: 9.6m (31.5ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Fair,  Operating Rating: 60.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 36.3 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,  Waterway Adequacy: Equal to present desirable 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: 903087,  Location: S.CTR-18-T24NR2W (Lat: 40.527781,  Lng: -89.374750),  Route carried "on" structure: County highway ,  Year Built: 1963,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 250 (year 2018),  Truck Traffic: 2%,  Average Future Daily Traffic: 215 (year 2032),  Design Load: HS 15,  Features Intersected: STREAM,  Facility Carried by Structure: HOFFMAN RD - TR 11
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.676,  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: 12.2m (40.0ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 9.3m (30.5ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 60.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 21.7 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: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum 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: 903088,  Location: NW-20-T24NR2W (Lat: 40.523514,  Lng: -89.357878),  Route carried "on" structure: County highway ,  Year Built: 1921,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 75 (year 2018),  Average Future Daily Traffic: 81 (year 2032),  Features Intersected: STREAM,  Facility Carried by Structure: HOFFMAN RD - TR 11
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.897,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.7m (22.0ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 40.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 24.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 903168,  Location: SW-34-T24NR2W (Lat: 40.491531,  Lng: -89.318992),  Route carried "on" structure: County highway ,  Year Built: 1972,  Status: Open,  Structure Length: 1.43m (4.69ft),  Average Daily Traffic: 100 (year 2018),  Truck Traffic: 7%,  Average Future Daily Traffic: 188 (year 2032),  Design Load: H 15,  Features Intersected: LITTLE MACKINAW R.,  Facility Carried by Structure: KEYSER RD - TR 310
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.055,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.0m (45.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 67.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 41.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than 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: January 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 903202,  Location: N.CTR-29-T24NR2W (Lat: 40.509433,  Lng: -89.352756),  Route carried "on" structure: County highway ,  Year Built: 1986,  Status: Open,  Structure Length: 2.53m (8.30ft),  Average Daily Traffic: 900 (year 2018),  Truck Traffic: 4%,  Average Future Daily Traffic: 968 (year 2032),  Design Load: HS 20,  Features Intersected: SARGENT SLOUGH,  Facility Carried by Structure: FAS 470-CH 6
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.620,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  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: Better than 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: 903228,  Location: W.CTR-8-T24NR2W (Lat: 40.549675,  Lng: -89.358506),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 9.41m (30.87ft),  Average Daily Traffic: 3,900 (year 2018),  Truck Traffic: 3%,  Average Future Daily Traffic: 3,978 (year 2032),  Design Load: HS 20,  Features Intersected: MACKINAW R OVERFLOW,  Facility Carried by Structure: FAS 470 - CH 6
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.857,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 87.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 52.5 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: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 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: 905002,  Location: S.CTR-31-T24NR2W (Lat: 40.484008,  Lng: -89.370236),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Open,  Structure Length: 1.19m (3.90ft),  Average Daily Traffic: 950 (year 2018),  Truck Traffic: 11%,  Average Future Daily Traffic: 914 (year 2032),  Design Load: HS 15,  Features Intersected: SARGENT SLOUGH,  Facility Carried by Structure: FAS 1481-CH 7
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.725,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.9m (12.8ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 35.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 21.1 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,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021
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Structure Number: 905034,  Location: NE-34-T24NR2W (Lat: 40.499367,  Lng: -89.310853),  Route carried "on" structure: County highway ,  Year Built: 1971,  Status: Open,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 75 (year 2018),  Average Future Daily Traffic: 81 (year 2032),  Features Intersected: LITTLE MACKINAW R,  Facility Carried by Structure: TR 149
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.708,  Lanes on structure: 1,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.3m (14.1ft),  Curb-To-Curb Width: 4.3m (14.1ft),  Out-to-Out Width: 10.4m (34.1ft)

Condition: Channel: Satisfactory,  Culverts: Fair,  Operating Rating: 33.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 20.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.31m (4.30ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Bridge Improvement Cost: $105,000,  Roadway Improvement Cost: $11,000,  Total Project Cost: $158,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 905049,  Location: SW-22-T24NR2W (Lat: 40.517203,  Lng: -89.319642),  Route carried "on" structure: County highway ,  Year Built: 1967,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 150 (year 2018),  Truck Traffic: 3%,  Average Future Daily Traffic: 161 (year 2032),  Features Intersected: SARGENT SLOUGH,  Facility Carried by Structure: TR 310
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.223,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Good,  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: January 2021
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Structure Number: 909908,  Location: W.CTR-18-T24NR2W (Lat: 40.534289,  Lng: -89.380092),  Route carried "under" structure: County highway ,  Year Built: 1900,  Structure Length: 0. m,  Average Daily Traffic: 50 (year 2018),  Features Intersected: TR 274,  Facility Carried by Structure: NW RR (541831D)
Minimum Vertical Clearance: 4.34m (14.24ft),  Kilometerpoint: 2.527,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 14.6m (47.9ft)

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