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


  • National Bridge Inventory (NBI) Statistics
  • 19Number of bridges
  • 138ft / 41.9mTotal length
  • 8,350Total average daily traffic
  • 1,046Total average daily truck traffic
  • 8,350Total future (year 2038) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Alden
  • No street view available for this location

New bridges in Alden, IA - historical statistics
  • New bridges - historical statistics
  • 11910-1919
  • 21930-1939
  • 11960-1969
  • 51970-1979
  • 31980-1989
  • 11990-1999
  • 22000-2009
  • 42010-2019
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 13.3%Very good
  • 6.7%Good
  • 53.3%Satisfactory
  • 13.3%Fair
  • 13.3%Serious
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 13.3%Very good
  • 6.7%Good
  • 60.0%Satisfactory
  • 6.7%Fair
  • 6.7%Poor
  • 6.7%Serious
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 13.3%Very good
  • 6.7%Good
  • 13.3%Satisfactory
  • 40.0%Fair
  • 13.3%Poor
  • 13.3%Serious
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 31.6%Very good
  • 10.5%Good
  • 52.6%Satisfactory
  • 5.3%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 75.0%Very good
  • 25.0%Satisfactory
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Structure Number: 11,  Location: 089211800 (Lat: 42.520650,  Lng: -93.375939),  Route carried "on" structure: City street ,  Year Built: 1936,  Status: Posted for load,  Structure Length: 4.57m (14.99ft),  Average Daily Traffic: 1,860 (year 2021),  Average Future Daily Traffic: 1,860 (year 2041),  Features Intersected: IOWA RIVER,  Facility Carried by Structure: MAIN ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.853,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete continuous,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 22.9m (75.1ft),  Curb or Sidewalk Widths: Left: 1.2m (3.9ft),  Right: 1.2m (3.9ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 10.4m (34.1ft)

Condition: Deck: Serious,  Superstructure: Serious,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 34.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 20.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: High priority of corrective action,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 30.0 - 39.9% below),  Length Of Structure Improvement: 18.80m (61.68ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $536,000,  Roadway Improvement Cost: $54,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 26951,  Location: 089222003 (Lat: 42.513981,  Lng: -93.469947),  Route carried "on" structure: County highway ,  Year Built: 2014,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 960 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 960 (year 2041),  Design Load: HL 93,  Features Intersected: S FORK IOWA RIVER,  Facility Carried by Structure: D20 HWY 941
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.417,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  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: 13.2m (43.3ft)

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: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 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: 26961,  Location: 089222003 (Lat: 42.513931,  Lng: -93.462356),  Route carried "on" structure: County highway ,  Year Built: 2012,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 960 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 960 (year 2039),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: HWY 941 (D20)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.042,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2019
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Structure Number: 26971,  Location: 089222103 (Lat: 42.514228,  Lng: -93.451722),  Route carried "on" structure: County highway ,  Year Built: 2015,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 960 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 960 (year 2038),  Design Load: HL 93,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: D20 HWY 941
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.917,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 49.2 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: 37.9 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 48 months,  Inspection Date: Febuary 2018
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Structure Number: 2698,  Location: 089211713 (Lat: 42.515811,  Lng: -93.347131),  Route carried "on" structure: County highway ,  Year Built: 1932,  Year Reconstructed: 1982,  Status: Open,  Structure Length: 4.45m (14.60ft),  Average Daily Traffic: 2,400 (year 2021),  Truck Traffic: 16%,  Average Future Daily Traffic: 2,400 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA RIVER,  Facility Carried by Structure: HWY 941
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.069,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Material/Design: Steel continuous,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 70.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 45.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 14.60m (47.90ft),  Designated Inspection Frequency: Every 24 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,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 176341,  Location: 088220401 (Lat: 42.470714,  Lng: -93.418975),  Route carried "on" structure: County highway ,  Year Built: 2014,  Status: Open,  Structure Length: 1.04m (3.41ft),  Average Daily Traffic: 180 (year 2021),  Truck Traffic: 24%,  Average Future Daily Traffic: 180 (year 2041),  Design Load: HL 93,  Features Intersected: CREEK,  Facility Carried by Structure: D 25
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.607,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 49.2 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: 37.9 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: Better than present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2021
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Structure Number: 176351,  Location: 088220402 (Lat: 42.461547,  Lng: -93.424408),  Route carried "on" structure: County highway ,  Year Built: 1982,  Status: Posted for load,  Structure Length: 2.10m (6.89ft),  Average Daily Traffic: 50 (year 2013),  Average Future Daily Traffic: 50 (year 2041),  Design Load: H 20,  Features Intersected: SOUTH FORK IOWA RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.522,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 20.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 4.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: High priority of replacement,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 6.90m (22.64ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 17636,  Location: 088220502 (Lat: 42.466253,  Lng: -93.444322),  Route carried "on" structure: County highway ,  Year Built: 1963,  Status: Posted for load,  Structure Length: 1.77m (5.81ft),  Average Daily Traffic: 25 (year 2021),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 20,  Features Intersected: DD,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.654,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Serious,  Channel: Fair,  Operating Rating: 10.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 5.80m (19.03ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 176371,  Location: 088220601 (Lat: 42.470806,  Lng: -93.456997),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 180 (year 2021),  Truck Traffic: 24%,  Average Future Daily Traffic: 180 (year 2039),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.481,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: Good,  Superstructure: Good,  Substructure: 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: 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,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2019,  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: 176711,  Location: 089220103 (Lat: 42.557611,  Lng: -93.390536),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 90 (year 2013),  Average Future Daily Traffic: 90 (year 2039),  Design Load: H 20,  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.743,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 8.7m (28.5ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Inventory Rating: 55.2 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: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 3.20m (10.50ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2019,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 176725,  Location: 089220104 (Lat: 42.555594,  Lng: -93.390700),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 6.61m (21.69ft),  Average Daily Traffic: 90 (year 2021),  Average Future Daily Traffic: 90 (year 2041),  Design Load: H 20,  Features Intersected: IOWA RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.040,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 23.5m (77.1ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 73.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 32.1 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 21.70m (71.19ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  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: 176751,  Location: 089220902 (Lat: 42.534592,  Lng: -93.459978),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 80 (year 2013),  Average Future Daily Traffic: 80 (year 2041),  Design Load: HS 20,  Features Intersected: DD,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.300,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 54.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.1 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: Better than present minimum criteria,  Length Of Structure Improvement: 5.50m (18.04ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  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: 176761,  Location: 089221002 (Lat: 42.539981,  Lng: -93.440253),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 25 (year 2013),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 15,  Features Intersected: DRAINAGE,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 22.024,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 37.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.3 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,  Length Of Structure Improvement: 4.50m (14.76ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $35,000,  Roadway Improvement Cost: $4,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 176771,  Location: 089221604 (Lat: 42.516194,  Lng: -93.459950),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 1.13m (3.71ft),  Average Daily Traffic: 90 (year 2013),  Average Future Daily Traffic: 90 (year 2041),  Design Load: H 20,  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.256,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.7m (35.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 31.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 20.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 3.70m (12.14ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 176781,  Location: 089221701 (Lat: 42.528708,  Lng: -93.467897),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 1.59m (5.22ft),  Average Daily Traffic: 25 (year 2013),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.594,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 36.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 17.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.20m (17.06ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 176811,  Location: 089222801 (Lat: 42.499925,  Lng: -93.458289),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Open,  Structure Length: 1.89m (6.20ft),  Average Daily Traffic: 25 (year 2013),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 20,  Features Intersected: SO.FK. IOWA RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.916,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 8.4m (27.6ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 43.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 22.6 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 6.20m (20.34ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 17686,  Location: 089223203 (Lat: 42.485456,  Lng: -93.462253),  Route carried "on" structure: County highway ,  Year Built: 1919,  Status: Posted for load,  Structure Length: 1.43m (4.69ft),  Average Daily Traffic: 30 (year 2021),  Average Future Daily Traffic: 30 (year 2041),  Features Intersected: SOUTH FORK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.035,  Lanes on structure: 2,  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: 13.7m (44.9ft),  Curb-To-Curb Width: 5.2m (17.1ft),  Out-to-Out Width: 5.3m (17.4ft)

Condition: Deck: Serious,  Superstructure: Poor,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 26.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 17.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of corrective action,  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: 0.1 - 9.9% below),  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 12 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Critical Feature Inspection Date: March 2021,  Bridge Improvement Cost: $171,000,  Roadway Improvement Cost: $17,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 176871,  Location: 089223204 (Lat: 42.483644,  Lng: -93.469350),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 30 (year 2013),  Average Future Daily Traffic: 30 (year 2041),  Design Load: H 20,  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.424,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.0m (45.9ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.0m,  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 38.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 4.80m (15.75ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 50257,  Location: B35000505 (Lat: 41.900578,  Lng: -93.527928),  Route carried "on" structure: City street ,  Year Built: 1974,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 290 (year 2019),  Average Future Daily Traffic: 290 (year 2041),  Features Intersected: WALNUT CREEK,  Facility Carried by Structure: 4TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.536,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  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: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021
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