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Bridge Statistics for Maquoketa, Iowa (IA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 54Number of bridges
  • 538ft / 164mTotal length
  • 93,515Total average daily traffic
  • 14,704Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Maquoketa
  • No street view available for this location

New bridges in Maquoketa, IA - historical statistics
  • New bridges - historical statistics
  • 11900-1909
  • 11920-1929
  • 41950-1959
  • 41960-1969
  • 71970-1979
  • 31980-1989
  • 251990-1999
  • 62000-2009
  • 32010-2019
Reconstructed bridges in Maquoketa, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11940-1949
  • 01950-1959
  • 11960-1969
  • 01970-1979
  • 01980-1989
  • 01990-1999
  • 12000-2009
Average Bridge Daily Traffic in Maquoketa, IA
Average Bridge Truck Traffic in Maquoketa, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 23.1%Very good
  • 30.8%Good
  • 33.3%Satisfactory
  • 7.7%Fair
  • 5.1%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 30.8%Very good
  • 33.3%Good
  • 17.9%Satisfactory
  • 12.8%Fair
  • 5.1%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 28.2%Very good
  • 46.2%Good
  • 12.8%Satisfactory
  • 5.1%Fair
  • 7.7%Poor
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 7.5%Very good
  • 35.0%Good
  • 47.5%Satisfactory
  • 7.5%Fair
  • 2.5%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 12.5%Good
  • 50.0%Satisfactory
  • 37.5%Fair
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Structure Number: 606395,  Location: At jct. U.S. 61 (Lat: 42.044692,  Lng: -90.664983),  Route carried "on" structure: City street ,  Year Built: 1996,  Status: Open,  Structure Length: 8.63m (28.31ft),  Average Daily Traffic: 3,440 (year 2017),  Average Future Daily Traffic: 3,440 (year 2042),  Design Load: HS 20,  Features Intersected: U.S. 61,  Facility Carried by Structure: SOUTH MAIN ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.280,  Lanes on structure: 2,  Lanes under structure: 5,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 29.6m (97.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Satisfactory,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 75.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: Superior 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 Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 60648,  Location: 0.5 MI. N OF JCT. IA #64 (Lat: 42.076056,  Lng: -90.683158),  Route carried "on" structure: US 61,  Year Built: 1998,  Status: Open,  Structure Length: 12.37m (40.58ft),  Average Daily Traffic: 4,100 (year 2020),  Truck Traffic: 22%,  Average Future Daily Traffic: 4,100 (year 2040),  Design Load: HS 20,  Features Intersected: S FORK MAQUOKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 51.819,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 2 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 48.5m (159.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 66.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  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: April 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 60674,  Location: AT JCT. OF IA 64 (Lat: 42.068506,  Lng: -90.683061),  Route carried "on" structure: US 61,  Year Built: 1997,  Status: Open,  Structure Length: 6.19m (20.31ft),  Average Daily Traffic: 2,750 (year 2020),  Truck Traffic: 29%,  Average Future Daily Traffic: 2,750 (year 2041),  Design Load: HS 20,  Features Intersected: IA 64
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 257.477,  Lanes on structure: 2,  Lanes under structure: 3,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 32.6m (107.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 64.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 606745,  Location: AT JCT. OF IA 64 (Lat: 42.069067,  Lng: -90.683292),  Route carried "on" structure: US 61,  Year Built: 1997,  Status: Open,  Structure Length: 6.19m (20.31ft),  Average Daily Traffic: 2,750 (year 2020),  Truck Traffic: 29%,  Average Future Daily Traffic: 2,750 (year 2041),  Design Load: HS 20,  Features Intersected: IA 64
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 52.595,  Lanes on structure: 2,  Lanes under structure: 3,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 32.6m (107.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 64.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 60675,  Location: 0.5 mi. S OF IA #64 (Lat: 42.061353,  Lng: -90.683208),  Route carried "on" structure: City street ,  Year Built: 1997,  Status: Open,  Structure Length: 7.07m (23.20ft),  Average Daily Traffic: 3,280 (year 2021),  Average Future Daily Traffic: 3,280 (year 2041),  Design Load: HS 20,  Features Intersected: US 61,  Facility Carried by Structure: SUMMIT ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.311,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 1 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 40.2m (131.9ft),  Curb or Sidewalk Widths: Left: 2.4m (7.9ft),  Right: 0.0m,  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 63.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 6017,  Location: AT JCT. OF IA 136 (Lat: 42.003306,  Lng: -90.657022),  Route carried "under" structure: State highway 136,  Year Built: 1995,  Structure Length: 0. m,  Average Daily Traffic: 435 (year 2020),  Truck Traffic: 13%,  Features Intersected: IA 136,  Facility Carried by Structure: NB US 61
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 48.963,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 29.9m (98.1ft)

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Structure Number: 601705,  Location: AT JCT. OF IA. 136 (Lat: 42.003872,  Lng: -90.657417),  Route carried "under" structure: State highway 136,  Year Built: 1995,  Structure Length: 0. m,  Average Daily Traffic: 870 (year 2020),  Truck Traffic: 13%,  Features Intersected: IA 136,  Facility Carried by Structure: SB US 61
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 48.992,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 28.0m (91.9ft)

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Structure Number: 606385,  Location: 1.0 MI. N OF JCT. IA #136 (Lat: 42.018175,  Lng: -90.656931),  Route carried "under" structure: US 61,  Year Built: 1996,  Structure Length: 0. m,  Average Daily Traffic: 8,500 (year 2020),  Truck Traffic: 18%,  Features Intersected: US 61,  Facility Carried by Structure: 110TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 250.230,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 29.3m (96.1ft)

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Structure Number: 606395,  Location: At jct. U.S. 61 (Lat: 42.044692,  Lng: -90.664983),  Route carried "under" structure: US 61,  Year Built: 1996,  Structure Length: 0. m,  Average Daily Traffic: 6,300 (year 2020),  Truck Traffic: 26%,  Features Intersected: U.S. 61,  Facility Carried by Structure: SOUTH MAIN ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 253.763,  Lanes on structure: 2,  Lanes under structure: 5,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 29.6m (97.1ft)

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Structure Number: 60674,  Location: AT JCT. OF IA 64 (Lat: 42.068506,  Lng: -90.683061),  Route carried "under" structure: State highway 64,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 2,750 (year 2020),  Truck Traffic: 6%,  Features Intersected: IA 64,  Facility Carried by Structure: NB US 61
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 52.901,  Lanes on structure: 2,  Lanes under structure: 3,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.6m (107.0ft)

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Structure Number: 606745,  Location: AT JCT. OF IA 64 (Lat: 42.069067,  Lng: -90.683292),  Route carried "under" structure: State highway 64,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 2,750 (year 2020),  Truck Traffic: 6%,  Features Intersected: IA 64,  Facility Carried by Structure: SB US 61
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 52.885,  Lanes on structure: 2,  Lanes under structure: 3,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.6m (107.0ft)

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Structure Number: 60675,  Location: 0.5 mi. S OF IA #64 (Lat: 42.061353,  Lng: -90.683208),  Route carried "under" structure: US 61,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 7,300 (year 2020),  Truck Traffic: 25%,  Features Intersected: US 61,  Facility Carried by Structure: SUMMIT ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 256.669,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 40.2m (131.9ft)

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