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


  • National Bridge Inventory (NBI) Statistics
  • 19Number of bridges
  • 108ft / 33.4mTotal length
  • 4,545Total average daily traffic
  • 842Total average daily truck traffic
  • 4,550Total future (year 2040) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Zearing
  • No street view available for this location

New bridges in Zearing, IA - historical statistics
  • New bridges - historical statistics
  • 21900-1909
  • 11930-1939
  • 11940-1949
  • 21950-1959
  • 11960-1969
  • 21970-1979
  • 11980-1989
  • 11990-1999
  • 22000-2009
  • 42010-2019
  • 22020-2022
Reconstructed bridges in Zearing, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 31960-1969
  • 01970-1979
  • 11980-1989
Average Bridge Truck Traffic in Zearing, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 35.7%Very good
  • 35.7%Good
  • 7.1%Satisfactory
  • 14.3%Fair
  • 7.1%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 35.7%Very good
  • 35.7%Good
  • 21.4%Satisfactory
  • 7.1%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 42.9%Very good
  • 14.3%Good
  • 14.3%Satisfactory
  • 21.4%Fair
  • 7.1%Poor
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 47.4%Very good
  • 21.1%Good
  • 31.6%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 60.0%Very good
  • 20.0%Satisfactory
  • 20.0%Fair
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Structure Number: 1288,  Location: 000000000 (Lat: 42.159319,  Lng: -93.297292),  Route carried "on" structure: City street ,  Year Built: 1974,  Status: Open,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 510 (year 2007),  Average Future Daily Traffic: 510 (year 2040),  Design Load: H 20,  Features Intersected: MIDDLE MINERVA CREEK,  Facility Carried by Structure: CENTER ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.848,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.7m (12.1ft),  Curb or Sidewalk Widths: Left: 1.2m (3.9ft),  Right: 0.0m

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 25.4 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 18.1 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: Superior to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020
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Structure Number: 48921,  Location: 0.4 MILES SOUTH OF SR E18 (Lat: 42.160178,  Lng: -93.309383),  Route carried "on" structure: US 65,  Year Built: 2001,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 1,740 (year 2020),  Truck Traffic: 22%,  Average Future Daily Traffic: 1,740 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: MINERVA CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 198.009,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 1 degrees,  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: 12.3m (40.4ft),  Out-to-Out Width: 13.3m (43.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 78.7 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: Better than 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: March 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: 175101,  Location: 086213301 (Lat: 42.223619,  Lng: -93.296172),  Route carried "on" structure: County highway ,  Year Built: 2014,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 25 (year 2013),  Average Future Daily Traffic: 25 (year 2041),  Design Load: HL 93,  Features Intersected: MINERVA CREEK,  Facility Carried by Structure: 330TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.774,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 1 degrees,  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: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

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: Better than present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 175111,  Location: 086213402 (Lat: 42.219669,  Lng: -93.290172),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 25 (year 2021),  Average Future Daily Traffic: 25 (year 2040),  Design Load: HS 20,  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.178,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 1 degrees,  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: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 88.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 52.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 315,  Location: 084211101 (Lat: 42.106847,  Lng: -93.261261),  Route carried "on" structure: County highway ,  Year Built: 1958,  Year Reconstructed: 1974,  Status: Posted for load,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 10 (year 2019),  Average Future Daily Traffic: 10 (year 2040),  Features Intersected: LITTLE MINERVA CREEK,  Facility Carried by Structure: 170TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 34.659,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.7m (22.0ft),  Curb-To-Curb Width: 6.6m (21.7ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 20.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 13.6 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 30.0 - 39.9% below),  Length Of Structure Improvement: 4.60m (15.09ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $75,000,  Roadway Improvement Cost: $11,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 315681,  Location: 0.3 Mi S Co Line (Lat: 42.205219,  Lng: -93.251208),  Route carried "on" structure: County highway ,  Year Built: 2020,  Status: Open,  Structure Length: 2.46m (8.07ft),  Average Daily Traffic: 30 (year 2019),  Average Future Daily Traffic: 30 (year 2040),  Design Load: HS 20,  Features Intersected: MINERVA CREEK,  Facility Carried by Structure: 730TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 38.024,  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: 9.4m (30.8ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 68.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum 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 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 315691,  Location: 085 21 02 01 (Lat: 42.209017,  Lng: -93.259444),  Route carried "on" structure: County highway ,  Year Built: 2012,  Status: Open,  Structure Length: 2.46m (8.07ft),  Average Daily Traffic: 20 (year 2019),  Average Future Daily Traffic: 20 (year 2040),  Design Load: HL 93,  Features Intersected: MINERVA CREEK,  Facility Carried by Structure: 100TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 28.101,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 68.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum 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 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 3157,  Location: 085210304 (Lat: 42.201069,  Lng: -93.290106),  Route carried "on" structure: County highway ,  Year Built: 1947,  Status: Open,  Structure Length: 0.94m (3.08ft),  Average Daily Traffic: 60 (year 2019),  Average Future Daily Traffic: 60 (year 2040),  Features Intersected: HARDIN-STORY DD I,  Facility Carried by Structure: 710TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.739,  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: 8.5m (27.9ft),  Curb-To-Curb Width: 5.9m (19.4ft),  Out-to-Out Width: 6.1m (20.0ft)

Condition: Deck: Poor,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 27.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.30m (17.39ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $86,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 31571,  Location: 085211003 (Lat: 42.191422,  Lng: -93.280314),  Route carried "on" structure: ServiceCounty highway ,  Year Built: 1900,  Year Reconstructed: 1988,  Status: Posted for load,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 10 (year 2019),  Average Future Daily Traffic: 15 (year 2040),  Features Intersected: ROAD DITCH,  Facility Carried by Structure: 113TH ST (FLD)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.803,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 3.7m (12.1ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 4.9m (16.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 30.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 21.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  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: 0.1 - 9.9% below),  Length Of Structure Improvement: 4.10m (13.45ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $62,000,  Roadway Improvement Cost: $6,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 315721,  Location: 0.5 Mi E 710 Ave (Lat: 42.191419,  Lng: -93.279250),  Route carried "on" structure: County highway ,  Year Built: 2018,  Status: Open,  Structure Length: 0.84m (2.76ft),  Average Daily Traffic: 15 (year 2019),  Average Future Daily Traffic: 15 (year 2040),  Design Load: HL 93,  Features Intersected: HARDIN-STORY DD 1,  Facility Carried by Structure: 113TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.890,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.9m (12.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 64.2 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: 49.2 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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020
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Structure Number: 31573,  Location: 085211104 (Lat: 42.187672,  Lng: -93.270586),  Route carried "on" structure: County highway ,  Year Built: 1900,  Year Reconstructed: 1974,  Status: Posted for load,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 15 (year 2019),  Average Future Daily Traffic: 15 (year 2040),  Features Intersected: HARDIN-STORY DD 1,  Facility Carried by Structure: 720TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 32.843,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 12.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 4.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than 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: 6.40m (21.00ft),  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Critical Feature Inspection Date: November 2020,  Bridge Improvement Cost: $104,000,  Roadway Improvement Cost: $16,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 31574,  Location: 085211204 (Lat: 42.182706,  Lng: -93.251086),  Route carried "on" structure: County highway ,  Year Built: 1967,  Status: Posted for load,  Structure Length: 1.04m (3.41ft),  Average Daily Traffic: 30 (year 2019),  Average Future Daily Traffic: 30 (year 2040),  Features Intersected: HARDIN-STORY DD 1,  Facility Carried by Structure: 730TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 35.523,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.8m (32.2ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 29.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 18.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.60m (18.37ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $91,000,  Roadway Improvement Cost: $14,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 315751,  Location: .46 Mi E of NW Cor. (Lat: 42.180356,  Lng: -93.242189),  Route carried "on" structure: County highway ,  Year Built: 2018,  Status: Open,  Structure Length: 2.16m (7.09ft),  Average Daily Traffic: 10 (year 2019),  Average Future Daily Traffic: 10 (year 2040),  Design Load: HL 93,  Features Intersected: HARDIN-STORY DD 1,  Facility Carried by Structure: 120TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.204,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.3m (30.5ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 69.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum 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 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: 315771,  Location: 085211901 (Lat: 42.166297,  Lng: -93.336775),  Route carried "on" structure: County highway ,  Year Built: 1973,  Status: Open,  Structure Length: 1.10m (3.61ft),  Average Daily Traffic: 640 (year 2019),  Truck Traffic: 13%,  Average Future Daily Traffic: 640 (year 2040),  Features Intersected: MIDDLE MINERVA CREEK,  Facility Carried by Structure: E18/130TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 26.451,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Very good,  Culverts: Fair,  Operating Rating: 34.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.5 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: 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: November 2020
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Structure Number: 315781,  Location: 0.3 Mi S E18 (Lat: 42.162361,  Lng: -93.328953),  Route carried "on" structure: County highway ,  Year Built: 2020,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 10 (year 2019),  Average Future Daily Traffic: 10 (year 2040),  Design Load: HL 93,  Features Intersected: MIDDLE MINERVA CREEK,  Facility Carried by Structure: 690TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 28.394,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 43.4 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: 33.7 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 desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020
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Structure Number: 31582,  Location: 085212204 (Lat: 42.159050,  Lng: -93.289889),  Route carried "on" structure: County highway ,  Year Built: 1953,  Status: Posted for load,  Structure Length: 1.89m (6.20ft),  Average Daily Traffic: 60 (year 2019),  Average Future Daily Traffic: 60 (year 2040),  Features Intersected: MIDDLE MINERVA CREEK,  Facility Carried by Structure: 710TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.074,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 7.8m (25.6ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 21.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 8.60m (28.22ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $140,000,  Roadway Improvement Cost: $21,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 31584,  Location: 085212302 (Lat: 42.158436,  Lng: -93.270411),  Route carried "on" structure: County highway ,  Year Built: 1930,  Year Reconstructed: 1974,  Status: Posted for load,  Structure Length: 1.98m (6.50ft),  Average Daily Traffic: 10 (year 2019),  Average Future Daily Traffic: 10 (year 2040),  Features Intersected: MIDDLE MINERVA CREEK,  Facility Carried by Structure: 720TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.597,  Lanes on structure: 1,  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,  Number Of Approach Spans: 2,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 7.1m (23.3ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 25.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 17.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 8.90m (29.20ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $145,000,  Roadway Improvement Cost: $22,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 315881,  Location: 085212502 (Lat: 42.151122,  Lng: -93.250878),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 25 (year 2019),  Average Future Daily Traffic: 25 (year 2040),  Design Load: H 20,  Features Intersected: MIDDLE MINERVA CREEK,  Facility Carried by Structure: 730TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 32.016,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  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: 9.1m (29.9ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 56.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 34.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 606015,  Location: 2.4 MI. N OF JCT. SR E18 (Lat: 42.201017,  Lng: -93.309622),  Route carried "on" structure: US 65,  Year Built: 1990,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 1,300 (year 2020),  Truck Traffic: 29%,  Average Future Daily Traffic: 1,300 (year 2040),  Design Load: HS 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 202.544,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.4m (11.2ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 35.6 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: 27.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to 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: April 2020
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