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


  • National Bridge Inventory (NBI) Statistics
  • 25Number of bridges
  • 482ft / 147mTotal length
  • 26,365Total average daily traffic
  • 4,697Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Jefferson
  • No street view available for this location

New bridges in Jefferson, IA - historical statistics
  • New bridges - historical statistics
  • 11910-1919
  • 11920-1929
  • 31950-1959
  • 41970-1979
  • 71980-1989
  • 11990-1999
  • 52000-2009
  • 32010-2019
Reconstructed bridges in Jefferson, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11970-1979
  • 11980-1989
  • 01990-1999
  • 12000-2009
Average Bridge Daily Traffic in Jefferson, IA
Average Bridge Truck Traffic in Jefferson, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 21.7%Very good
  • 43.5%Good
  • 30.4%Satisfactory
  • 4.3%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 34.8%Very good
  • 34.8%Good
  • 26.1%Satisfactory
  • 4.3%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 21.7%Very good
  • 52.2%Good
  • 13.0%Satisfactory
  • 13.0%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 8.7%Very good
  • 34.8%Good
  • 39.1%Satisfactory
  • 17.4%Fair
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Structure Number: 25611,  Location: 3.8 Mi. W of IA 4 (Lat: 42.034572,  Lng: -94.473528),  Route carried "on" structure: US 30,  Year Built: 2010,  Status: Open,  Structure Length: 11.86m (38.91ft),  Average Daily Traffic: 2,950 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 2,950 (year 2041),  Design Load: HS 20,  Features Intersected: NORTH RACCOON RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 166.187,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.8m (51.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 31.1m (102.0ft),  Curb-To-Curb Width: 14.0m (45.9ft),  Out-to-Out Width: 15.0m (49.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 90.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 73.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Superior 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 Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 2562,  Location: 1.8 MI. E OF JCT. IA 4 (Lat: 42.034567,  Lng: -94.343347),  Route carried "on" structure: US 30,  Year Built: 1957,  Status: Open,  Structure Length: 6.00m (19.69ft),  Average Daily Traffic: 3,840 (year 2020),  Truck Traffic: 17%,  Average Future Daily Traffic: 3,840 (year 2040),  Design Load: H 20,  Features Intersected: HARDIN CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 176.963,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 57.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 25681,  Location: 1.9 mi S of Jct SR E53 (Lat: 41.987847,  Lng: -94.377211),  Route carried "on" structure: State highway 4,  Year Built: 1983,  Status: Open,  Structure Length: 10.67m (35.01ft),  Average Daily Traffic: 1,990 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 1,990 (year 2040),  Design Load: HS 20,  Features Intersected: NORTH RACCOON RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 33.457,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 26.5m (86.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Satisfactory,  Superstructure: Very good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 85.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 50.9 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 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: 25691,  Location: 1.2 MI. N OF JCT.30 (Lat: 42.051672,  Lng: -94.378111),  Route carried "on" structure: State highway 4,  Year Built: 1978,  Status: Open,  Structure Length: 4.08m (13.39ft),  Average Daily Traffic: 2,450 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 2,450 (year 2041),  Design Load: HS 20,  Features Intersected: HARDIN CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 40.544,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 15.5m (50.9ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.4m (47.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 64.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to 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 Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 162081,  Location: 083300403 (Lat: 42.029692,  Lng: -94.348867),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 4.24m (13.91ft),  Average Daily Traffic: 60 (year 2012),  Truck Traffic: 20%,  Average Future Daily Traffic: 60 (year 2040),  Design Load: HS 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: 222 ND
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.618,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 79.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 47.6 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162091,  Location: 083301004 (Lat: 42.021761,  Lng: -94.333897),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Posted for load,  Structure Length: 2.38m (7.81ft),  Average Daily Traffic: 60 (year 2016),  Truck Traffic: 50%,  Average Future Daily Traffic: 60 (year 2040),  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: PARKLAND AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.734,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Fair,  Operating Rating: 23.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 11.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 10.60m (34.78ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $173,000,  Roadway Improvement Cost: $26,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 162101,  Location: 083301005 (Lat: 42.015114,  Lng: -94.325497),  Route carried "on" structure: County highway ,  Year Built: 1993,  Status: Open,  Structure Length: 5.36m (17.59ft),  Average Daily Traffic: 1,050 (year 2016),  Truck Traffic: 9%,  Average Future Daily Traffic: 1,050 (year 2040),  Design Load: HS 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: 235 TH / E53
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.699,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 80.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 48.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable 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 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162131,  Location: 083301405 (Lat: 41.998464,  Lng: -94.319328),  Route carried "on" structure: County highway ,  Year Built: 2009,  Status: Open,  Structure Length: 4.36m (14.30ft),  Average Daily Traffic: 25 (year 2016),  Average Future Daily Traffic: 25 (year 2040),  Design Load: HS 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: 243 RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.369,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 76.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal 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: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162151,  Location: 083301806 (Lat: 41.994244,  Lng: -94.391106),  Route carried "on" structure: County highway ,  Year Built: 1980,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 15 (year 2012),  Average Future Daily Traffic: 15 (year 2040),  Features Intersected: SMALL STREAM,  Facility Carried by Structure: MEADOW AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.652,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.7m (22.0ft),  Curb-To-Curb Width: 6.8m (22.3ft),  Out-to-Out Width: 7.2m (23.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 51.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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 desirable criteria,  Length Of Structure Improvement: 2.40m (7.87ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $19,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 162161,  Location: 083302203 (Lat: 41.986331,  Lng: -94.323150),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 35 (year 2012),  Average Future Daily Traffic: 35 (year 2040),  Design Load: H 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: 255 TH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.249,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.0m (29.5ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 50.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.4 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: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1622,  Location: 083310304 (Lat: 42.028231,  Lng: -94.455400),  Route carried "on" structure: County highway ,  Year Built: 1952,  Year Reconstructed: 1981,  Status: Open,  Structure Length: 10.45m (34.28ft),  Average Daily Traffic: 200 (year 2016),  Truck Traffic: 19%,  Average Future Daily Traffic: 200 (year 2040),  Design Load: H 15,  Features Intersected: RACCOON RIVER,  Facility Carried by Structure: J AVE / P14
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.319,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 30.2m (99.1ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 33.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 19.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 37.30m (122.38ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Bridge Improvement Cost: $804,000,  Roadway Improvement Cost: $161,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 16226,  Location: 083311109 (Lat: 42.012203,  Lng: -94.429917),  Route carried "on" structure: County highway ,  Year Built: 1912,  Year Reconstructed: 2011,  Status: Open,  Structure Length: 13.96m (45.80ft),  Average Daily Traffic: 920 (year 2016),  Truck Traffic: 8%,  Average Future Daily Traffic: 920 (year 2040),  Design Load: HS 20,  Features Intersected: RACCOON RIVER,  Facility Carried by Structure: E53 237TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.801,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Concrete,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 5,  Number Of Approach Spans: 4,  Length of Maximum Span: 23.5m (77.1ft),  Curb or Sidewalk Widths: Left: 1.6m (5.2ft),  Right: 0.4m (1.3ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.1m (36.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Fair,  Operating Rating: 65.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.0 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,  Waterway Adequacy: High priority of corrective action,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 44.90m (147.31ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Bridge Improvement Cost: $1,260,000,  Roadway Improvement Cost: $252,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162511,  Location: 084301703 (Lat: 42.085317,  Lng: -94.368125),  Route carried "on" structure: County highway ,  Year Built: 1925,  Year Reconstructed: 1994,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 10 (year 2012),  Average Future Daily Traffic: 10 (year 2040),  Features Intersected: DD #110,  Facility Carried by Structure: 185 TH/FARM DR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.633,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 39.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 23.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 16252,  Location: 084301902 (Lat: 42.071131,  Lng: -94.397933),  Route carried "on" structure: County highway ,  Year Built: 1958,  Status: Posted for load,  Structure Length: 3.11m (10.20ft),  Average Daily Traffic: 50 (year 2012),  Truck Traffic: 24%,  Average Future Daily Traffic: 50 (year 2040),  Design Load: H 15,  Features Intersected: STREAM,  Facility Carried by Structure: M AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.696,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 27.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  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 minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 13.00m (42.65ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Bridge Improvement Cost: $212,000,  Roadway Improvement Cost: $32,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162531,  Location: 084302001 (Lat: 42.078075,  Lng: -94.370883),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 50 (year 2016),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: 190 TH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.863,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 45.7 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.00m (9.84ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $22,000,  Roadway Improvement Cost: $2,000
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Structure Number: 162591,  Location: 084303201 (Lat: 42.049125,  Lng: -94.376597),  Route carried "on" structure: County highway ,  Year Built: 2002,  Status: Open,  Structure Length: 5.40m (17.72ft),  Average Daily Traffic: 70 (year 2012),  Average Future Daily Traffic: 70 (year 2040),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: 210 TH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.754,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Fair,  Operating Rating: 65.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 38.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  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 24 months,  Inspection Date: May 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162601,  Location: 084303201 (Lat: 42.049125,  Lng: -94.370486),  Route carried "on" structure: County highway ,  Year Built: 2002,  Status: Open,  Structure Length: 2.77m (9.09ft),  Average Daily Traffic: 70 (year 2012),  Average Future Daily Traffic: 70 (year 2040),  Design Load: HS 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: 210 TH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.259,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Fair,  Operating Rating: 61.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 36.1 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal 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: May 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162611,  Location: 084303204 (Lat: 42.047428,  Lng: -94.368306),  Route carried "on" structure: County highway ,  Year Built: 1986,  Status: Open,  Structure Length: 4.33m (14.21ft),  Average Daily Traffic: 80 (year 2012),  Average Future Daily Traffic: 80 (year 2040),  Design Load: HS 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: NEOLA AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 15.112,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 78.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 47.2 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162621,  Location: 084303304 (Lat: 42.039986,  Lng: -94.348778),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 5.40m (17.72ft),  Average Daily Traffic: 80 (year 2016),  Average Future Daily Traffic: 80 (year 2040),  Design Load: H 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: ORCHARD AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.986,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 49.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.4 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: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 162731,  Location: 084312402 (Lat: 42.075650,  Lng: -94.417453),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 3.11m (10.20ft),  Average Daily Traffic: 30 (year 2016),  Average Future Daily Traffic: 30 (year 2040),  Design Load: H 20,  Features Intersected: HARDIN CREEK,  Facility Carried by Structure: L AVE / P16
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.788,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 43.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to 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: May 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 162781,  Location: 084313303 (Lat: 42.041519,  Lng: -94.468525),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 2.38m (7.81ft),  Average Daily Traffic: 50 (year 2012),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: 215 TH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.243,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 8.8m (28.9ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 62.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 36.6 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal 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: May 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 36475,  Location: 083303101 (Lat: 41.964725,  Lng: -94.389314),  Route carried "on" structure: County highway ,  Year Built: 2004,  Status: Open,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 40 (year 2016),  Average Future Daily Traffic: 40 (year 2040),  Design Load: HS 20,  Features Intersected: UNNAMED STREAM,  Facility Carried by Structure: 270TH STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.885,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.3m (46.9ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 56.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 60004,  Location: 0.4 MI. S OF JCT. IA 333 (Lat: 40.595258,  Lng: -95.672947),  Route carried "on" structure: Interstate 29,  Year Built: 1972,  Status: Open,  Structure Length: 5.46m (17.91ft),  Average Daily Traffic: 6,200 (year 2020),  Truck Traffic: 39%,  Average Future Daily Traffic: 6,200 (year 2040),  Design Load: HS 20,  Features Intersected: MAIN DITCH NO.6
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 242.309,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 5 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 22.6m (74.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Very good,  Operating Rating: 63.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than 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: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 700145,  Location: 0.8 MI. S of JCT. US 30 (Lat: 42.020792,  Lng: -94.377436),  Route carried "on" structure: State highway 4,  Year Built: 2012,  Status: Open,  Structure Length: 33.53m (110.01ft),  Average Daily Traffic: 5,600 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 5,600 (year 2040),  Design Load: HL 93,  Features Intersected: UP RR & MCKINLEY ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 37.115,  Lanes on structure: 4,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.5m (50.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 8,  Length of Maximum Span: 41.8m (137.1ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 3.0m (9.8ft),  Curb-To-Curb Width: 16.5m (54.1ft),  Out-to-Out Width: 20.8m (68.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 43.1 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: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: 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: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 700145,  Location: 0.8 MI. S of JCT. US 30 (Lat: 42.020792,  Lng: -94.377436),  Route carried "under" structure: City street ,  Year Built: 2012,  Structure Length: 0. m,  Average Daily Traffic: 440 (year 2011),  Features Intersected: UP RR & MCKINLEY ST,  Facility Carried by Structure: IA 4 (N ELM ST)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.322,  Lanes on structure: 4,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 41.8m (137.1ft)

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