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


  • National Bridge Inventory (NBI) Statistics
  • 24Number of bridges
  • 381ft / 116mTotal length
  • 131,310Total average daily traffic
  • 51,735Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Rochester
  • No street view available for this location

New bridges in Rochester, IA - historical statistics
  • New bridges - historical statistics
  • 11920-1929
  • 21930-1939
  • 21940-1949
  • 21950-1959
  • 51960-1969
  • 31970-1979
  • 31990-1999
  • 42000-2009
  • 22010-2019
Reconstructed bridges in Rochester, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11960-1969
  • 01970-1979
  • 01980-1989
  • 11990-1999
Average Bridge Daily Traffic in Rochester, IA
Average Bridge Truck Traffic in Rochester, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 16.7%Very good
  • 22.2%Good
  • 16.7%Satisfactory
  • 22.2%Fair
  • 16.7%Poor
  • 5.6%Serious
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 11.1%Very good
  • 33.3%Good
  • 16.7%Satisfactory
  • 22.2%Fair
  • 16.7%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 5.6%Very good
  • 44.4%Good
  • 11.1%Satisfactory
  • 22.2%Fair
  • 5.6%Poor
  • 11.1%Serious
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 20.0%Very good
  • 20.0%Good
  • 40.0%Satisfactory
  • 20.0%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Satisfactory
  • 33.3%Fair
  • 33.3%Poor
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Structure Number: 1833,  Location: At N Jct. of I-80 (Lat: 41.645364,  Lng: -91.114469),  Route carried "on" structure: State highway 38,  Year Built: 1960,  Status: Open,  Structure Length: 8.11m (26.61ft),  Average Daily Traffic: 2,920 (year 2020),  Truck Traffic: 17%,  Average Future Daily Traffic: 2,920 (year 2040),  Design Load: H 20,  Features Intersected: I-80
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 128.508,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 3 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 22.6m (74.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 10.4m (34.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 36.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 21.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 1834,  Location: 0.4 mi. N of N Jct I-80 (Lat: 41.649975,  Lng: -91.118292),  Route carried "on" structure: State highway 38,  Year Built: 1959,  Status: Open,  Structure Length: 4.33m (14.21ft),  Average Daily Traffic: 3,410 (year 2020),  Truck Traffic: 19%,  Average Future Daily Traffic: 3,410 (year 2041),  Design Load: HS 20,  Features Intersected: CROOKED CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 30.985,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 14.0m (45.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.3m (60.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 52.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.3 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 1848,  Location: 079030905 (Lat: 41.670506,  Lng: -91.198658),  Route carried "on" structure: County highway ,  Year Built: 1951,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 820 (year 2018),  Truck Traffic: 12%,  Average Future Daily Traffic: 820 (year 2041),  Design Load: H 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: F44 290TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.253,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 2 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Channel: Fair,  Culverts: Fair,  Structural Evaluation: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $285,000,  Roadway Improvement Cost: $29,000
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Structure Number: 18611,  Location: 1.0 mi. W of W Jct. IA 38 (Lat: 41.645467,  Lng: -91.135436),  Route carried "on" structure: Interstate 80,  Year Built: 2009,  Status: Open,  Structure Length: 36.22m (118.83ft),  Average Daily Traffic: 15,650 (year 2020),  Truck Traffic: 41%,  Average Future Daily Traffic: 15,650 (year 2041),  Design Load: HS 20,  Features Intersected: CEDAR RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 427.046,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 9,  Length of Maximum Span: 41.8m (137.1ft),  Curb-To-Curb Width: 17.1m (56.1ft),  Out-to-Out Width: 18.0m (59.1ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 90.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.8 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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 48 months,  Inspection Date: May 2021,  Underwater Inspection Date: May 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: 18621,  Location: 1.0 mi. W of W jct. IA 38 (Lat: 41.645558,  Lng: -91.131464),  Route carried "on" structure: Interstate 80,  Year Built: 2010,  Status: Open,  Structure Length: 36.22m (118.83ft),  Average Daily Traffic: 15,650 (year 2020),  Truck Traffic: 41%,  Average Future Daily Traffic: 15,650 (year 2041),  Design Load: HS 20,  Features Intersected: CEDAR RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 65.751,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 9,  Length of Maximum Span: 41.8m (137.1ft),  Curb-To-Curb Width: 17.1m (56.1ft),  Out-to-Out Width: 18.0m (59.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 62.9 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: 48.6 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: 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,  Underwater Inspection Frequency: Every 48 months,  Inspection Date: May 2021,  Underwater Inspection Date: May 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: 101681,  Location: 079020506 (Lat: 41.684411,  Lng: -91.102239),  Route carried "on" structure: County highway ,  Year Built: 1996,  Status: Open,  Structure Length: 1.65m (5.41ft),  Average Daily Traffic: 15 (year 2018),  Average Future Daily Traffic: 15 (year 2040),  Features Intersected: CROOKED CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.965,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 7.7m (25.3ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 55.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 42.3 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: Better than present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Length Of Structure Improvement: 5.40m (17.72ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Other
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Structure Number: 101701,  Location: 079020504 (Lat: 41.672500,  Lng: -91.102481),  Route carried "on" structure: County highway ,  Year Built: 2017,  Status: Posted for load-capacity,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 15 (year 2018),  Average Future Daily Traffic: 15 (year 2041),  Features Intersected: CROOKED CREEK,  Facility Carried by Structure: NEWTON AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.640,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 7.8m (25.6ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 34.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 20.6 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: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 10171,  Location: 079020803 (Lat: 41.670006,  Lng: -91.100003),  Route carried "on" structure: County highway ,  Year Built: 1923,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 230 (year 2018),  Average Future Daily Traffic: 230 (year 2041),  Features Intersected: CROOKED CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.502,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft)

Condition: Channel: Satisfactory,  Culverts: Poor,  Operating Rating: 26.9 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 18.0 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 8.00m (26.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $293,000,  Roadway Improvement Cost: $29,000
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Structure Number: 101722,  Location: 079020805 (Lat: 41.660150,  Lng: -91.105789),  Route carried "on" structure: County highway ,  Year Built: 2007,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 30 (year 2018),  Average Future Daily Traffic: 30 (year 2040),  Design Load: HS 20,  Features Intersected: CROOKED CR,  Facility Carried by Structure: 300TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.095,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: 7.9m (25.9ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 36.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 25.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 2.40m (7.87ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 101731,  Location: 079020807 (Lat: 41.658558,  Lng: -91.101386),  Route carried "on" structure: County highway ,  Year Built: 1998,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 10 (year 2018),  Average Future Daily Traffic: 10 (year 2041),  Design Load: HS 20,  Features Intersected: CROOKED CR,  Facility Carried by Structure: 300TH ST (LWC)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.503,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 5.8m (19.0ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 1.2m (3.9ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 44.1 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: Equal to present minimum criteria,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 4.50m (14.76ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 10182,  Location: 079030206 (Lat: 41.677550,  Lng: -91.164556),  Route carried "on" structure: County highway ,  Year Built: 1945,  Status: Posted for load,  Structure Length: 4.69m (15.39ft),  Average Daily Traffic: 160 (year 2018),  Truck Traffic: 16%,  Average Future Daily Traffic: 160 (year 2041),  Design Load: H 15,  Features Intersected: ROCK CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.507,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.0m (59.1ft),  Curb-To-Curb Width: 6.6m (21.7ft),  Out-to-Out Width: 7.1m (23.3ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 23.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.1 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than 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: 18.50m (60.70ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $422,000,  Roadway Improvement Cost: $42,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 10183,  Location: 079031206 (Lat: 41.667303,  Lng: -91.142483),  Route carried "on" structure: County highway ,  Year Built: 1930,  Status: Posted for load,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 70 (year 2018),  Average Future Daily Traffic: 70 (year 2041),  Design Load: H 15,  Features Intersected: CEDAR RIVER,  Facility Carried by Structure: CEMETARY RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.521,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.6m (24.9ft),  Curb-To-Curb Width: 5.0m (16.4ft),  Out-to-Out Width: 5.0m (16.4ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Serious,  Channel: Fair,  Operating Rating: 33.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of corrective action,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: High priority of replacement,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 4.70m (15.42ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $102,000,  Roadway Improvement Cost: $10,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 101841,  Location: 079031304 (Lat: 41.653333,  Lng: -91.151281),  Route carried "on" structure: County highway ,  Year Built: 1965,  Status: Open,  Structure Length: 1.25m (4.10ft),  Average Daily Traffic: 110 (year 2018),  Average Future Daily Traffic: 110 (year 2041),  Features Intersected: PEDEE CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.967,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 4.9m (16.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.4m (21.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 25.1 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: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 7.00m (22.97ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $256,000,  Roadway Improvement Cost: $26,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 101851,  Location: 079031701 (Lat: 41.655903,  Lng: -91.225592),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2040),  Features Intersected: E BR WAPSINONOC CR,  Facility Carried by Structure: 300TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.651,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 3 degrees,  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: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Very good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Very good,  Operating Rating: 36.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 2.40m (7.87ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 101911,  Location: 079032102 (Lat: 41.640356,  Lng: -91.209964),  Route carried "on" structure: County highway ,  Year Built: 1994,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 40 (year 2018),  Average Future Daily Traffic: 40 (year 2039),  Design Load: HS 20,  Features Intersected: WAPSINONOC CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.712,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 7.6m (24.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 41.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 34.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: May 2019,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 101941,  Location: 079032402 (Lat: 41.634314,  Lng: -91.151836),  Route carried "on" structure: County highway ,  Year Built: 2008,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 130 (year 2018),  Average Future Daily Traffic: 130 (year 2041),  Features Intersected: BR CEDAR RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.844,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: 7.3m (24.0ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 36.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 23.4 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: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.30m (7.55ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 102871,  Location: 080023005 (Lat: 41.707094,  Lng: -91.117494),  Route carried "on" structure: County highway ,  Year Built: 1975,  Year Reconstructed: 1996,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2040),  Features Intersected: CROOKED CREEK,  Facility Carried by Structure: MONROE AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.978,  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: 11.9m (39.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.6m (24.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 37.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 27.8 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: Equal to present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 10288,  Location: 080023203 (Lat: 41.698475,  Lng: -91.110583),  Route carried "on" structure: County highway ,  Year Built: 1930,  Year Reconstructed: 1960,  Status: Posted for load,  Structure Length: 1.98m (6.50ft),  Average Daily Traffic: 20 (year 2018),  Average Future Daily Traffic: 20 (year 2041),  Features Intersected: CROOKED CR,  Facility Carried by Structure: 270TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.453,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 18.3m (60.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Serious,  Superstructure: Poor,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 6.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 12 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Critical Feature Inspection Date: May 2021,  Bridge Improvement Cost: $330,000,  Roadway Improvement Cost: $33,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 103091,  Location: 080032203 (Lat: 41.719892,  Lng: -91.184858),  Route carried "on" structure: County highway ,  Year Built: 1974,  Status: Open,  Structure Length: 1.19m (3.90ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2040),  Features Intersected: ROCK RUN CREEK,  Facility Carried by Structure: STONE MILL RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.030,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 5.8m (19.0ft),  Out-to-Out Width: 6.0m (19.7ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Poor,  Channel: Fair,  Operating Rating: 30.7 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: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 6.00m (19.69ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Bridge Improvement Cost: $130,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 1031,  Location: 080032308 (Lat: 41.715758,  Lng: -91.159636),  Route carried "on" structure: County highway ,  Year Built: 1946,  Status: Posted for load,  Structure Length: 5.58m (18.31ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2040),  Design Load: H 15,  Features Intersected: ROCK CR,  Facility Carried by Structure: KING AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.091,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 6.6m (21.7ft),  Out-to-Out Width: 7.1m (23.3ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Fair,  Operating Rating: 24.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.9 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: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 21.70m (71.19ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $469,000,  Roadway Improvement Cost: $47,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 103141,  Location: 080033603 (Lat: 41.691881,  Lng: -91.143136),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 4.66m (15.29ft),  Average Daily Traffic: 60 (year 2018),  Average Future Daily Traffic: 60 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK CREEK,  Facility Carried by Structure: 273RD ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.743,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 15.5m (50.9ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 72.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 15.30m (50.20ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1833,  Location: At N Jct. of I-80 (Lat: 41.645364,  Lng: -91.114469),  Route carried "under" structure: Interstate 80,  Year Built: 1960,  Structure Length: 0. m,  Average Daily Traffic: 30,300 (year 2020),  Truck Traffic: 42%,  Features Intersected: I-80,  Facility Carried by Structure: IA 38
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 428.815,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.6m (74.1ft)

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Structure Number: 1859,  Location: 2.3 mi. E of Jct. SR X40 (Lat: 41.658142,  Lng: -91.205147),  Route carried "under" structure: Interstate 80,  Year Built: 1960,  Structure Length: 0. m,  Average Daily Traffic: 31,100 (year 2020),  Truck Traffic: 41%,  Features Intersected: I-80,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 420.966,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 19.8m (65.0ft)

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Structure Number: 186,  Location: 2.0 MI. W OF W JCT. IA 38 (Lat: 41.645761,  Lng: -91.151869),  Route carried "under" structure: Interstate 80,  Year Built: 1960,  Structure Length: 0. m,  Average Daily Traffic: 30,400 (year 2020),  Truck Traffic: 40%,  Features Intersected: I-80,  Facility Carried by Structure: FM X-46
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 425.671,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 19.8m (65.0ft)

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