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


  • National Bridge Inventory (NBI) Statistics
  • 23Number of bridges
  • 262ft / 79.6mTotal length
  • 35,492Total average daily traffic
  • 3,748Total average daily truck traffic
  • 35,734Total future (year 2034) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Montour
  • No street view available for this location

New bridges in Montour, IA - historical statistics
  • New bridges - historical statistics
  • 11900-1909
  • 21920-1929
  • 41940-1949
  • 21950-1959
  • 11960-1969
  • 41980-1989
  • 31990-1999
  • 42000-2009
  • 22020-2022
Reconstructed bridges in Montour, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11970-1979
  • 01980-1989
  • 11990-1999
  • 32000-2009
Average Bridge Daily Traffic in Montour, IA
Average Bridge Truck Traffic in Montour, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 11.8%Excellent
  • 5.9%Very good
  • 23.5%Good
  • 11.8%Satisfactory
  • 17.6%Fair
  • 5.9%Poor
  • 23.5%Failed
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 11.8%Excellent
  • 17.6%Very good
  • 17.6%Good
  • 11.8%Satisfactory
  • 17.6%Fair
  • 23.5%Failed
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 11.8%Excellent
  • 5.9%Very good
  • 35.3%Good
  • 17.6%Satisfactory
  • 5.9%Fair
  • 23.5%Failed
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 8.7%Excellent
  • 8.7%Very good
  • 17.4%Good
  • 52.2%Satisfactory
  • 8.7%Fair
  • 4.3%Failed
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 66.7%Good
  • 16.7%Satisfactory
  • 16.7%Poor
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Structure Number: 8346,  Location: 083162109 (Lat: 41.981131,  Lng: -92.717375),  Route carried "on" structure: City street ,  Year Built: 1920,  Status: Closed,  Structure Length: 0.61m (2.00ft),  Average Daily Traffic: 40 (year 2021),  Average Future Daily Traffic: 40 (year 2034),  Features Intersected: DRAINAGE,  Facility Carried by Structure: ELM ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.011,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 5.5m (18.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.1m (20.0ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Fair,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2014,  Bridge Improvement Cost: $82,000,  Roadway Improvement Cost: $8,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 835,  Location: 083162102 (Lat: 41.982050,  Lng: -92.716089),  Route carried "on" structure: City street ,  Year Built: 1900,  Year Reconstructed: 1984,  Status: Closed,  Structure Length: 0.94m (3.08ft),  Average Daily Traffic: 289 (year 1998),  Average Future Daily Traffic: 289 (year 2040),  Features Intersected: DRAINAGE,  Facility Carried by Structure: JACOB ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.138,  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: 8.8m (28.9ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 5.5m (18.0ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Fair,  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: > 39.9% below),  Length Of Structure Improvement: 5.20m (17.06ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $125,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: F407,  Location: CASINO ENTR AT JCT HWY 30 (Lat: 41.999022,  Lng: -92.668875),  Route carried "on" structure: Federal lands road 1101,  Year Built: 1994,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 5,358 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 5,500 (year 2040),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.050,  Lanes on structure: 4,  Owner: Bureau of Indian Affairs,  Approaching Roadway Width: 14.6m (47.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.6m (11.8ft),  Curb-To-Curb Width: 17.1m (56.1ft),  Out-to-Out Width: 21.3m (69.9ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020
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Structure Number: F411,  Location: SETTLEMENT ROAD (Lat: 41.998489,  Lng: -92.671042),  Route carried "on" structure: Federal lands road 1201,  Year Built: 2001,  Status: Open,  Structure Length: 0.74m (2.43ft),  Average Daily Traffic: 300 (year 2020),  Truck Traffic: 25%,  Average Future Daily Traffic: 400 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA DRAINAGE DITCH,  Facility Carried by Structure: IRR BIA ROUTE 12
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.120,  Lanes on structure: 2,  Owner: Bureau of Indian Affairs,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft),  Curb or Sidewalk Widths: Left: 0.3m (1.0ft),  Right: 0.3m (1.0ft),  Curb-To-Curb Width: 15.2m (49.9ft),  Out-to-Out Width: 16.4m (53.8ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 53.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.9 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020
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Structure Number: 49481,  Location: 1.6 MILES E OF E JCT T47 (Lat: 41.999103,  Lng: -92.661322),  Route carried "on" structure: US 30,  Year Built: 1996,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 10,600 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 10,600 (year 2041),  Design Load: HS 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 318.161,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 24.4m (80.1ft),  Skew: 21 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: Good,  Culverts: Good,  Operating Rating: 30.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 18.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021
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Structure Number: 4971,  Location: 083162107 (Lat: 41.983103,  Lng: -92.715067),  Route carried "on" structure: City street ,  Year Built: 1962,  Status: Open,  Structure Length: 1.55m (5.09ft),  Average Daily Traffic: 870 (year 2021),  Average Future Daily Traffic: 870 (year 2040),  Design Load: HS 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: NORTH MAIN ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.227,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 5.5m (18.0ft)

Condition: Channel: Satisfactory,  Culverts: Poor,  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: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 7.20m (23.62ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $147,000,  Roadway Improvement Cost: $15,000
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Structure Number: 317241,  Location: 082160302 (Lat: 41.948700,  Lng: -92.707589),  Route carried "on" structure: County highway ,  Year Built: 2000,  Status: Open,  Structure Length: 3.90m (12.80ft),  Average Daily Traffic: 480 (year 2021),  Average Future Daily Traffic: 480 (year 2038),  Design Load: HS 20,  Features Intersected: RAVEN CREEK,  Facility Carried by Structure: IRR FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.955,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  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: 10.0m (32.8ft),  Out-to-Out Width: 10.2m (33.5ft)

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: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 12.80m (41.99ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2018,  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: 31725,  Location: 082160404 (Lat: 41.940725,  Lng: -92.727569),  Route carried "on" structure: County highway ,  Year Built: 1940,  Year Reconstructed: 2006,  Status: Posted for load-capacity,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 40 (year 2017),  Average Future Daily Traffic: 40 (year 2040),  Design Load: H 15,  Features Intersected: RAVEN CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.075,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.5m (41.0ft),  Curb-To-Curb Width: 6.0m (19.7ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 41.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 24.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 6.50m (21.33ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 31726,  Location: 082160504 (Lat: 41.938228,  Lng: -92.747289),  Route carried "on" structure: County highway ,  Year Built: 1940,  Status: Posted for load,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 30 (year 2017),  Average Future Daily Traffic: 30 (year 2041),  Design Load: H 15,  Features Intersected: RAVEN CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.425,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.5m (41.0ft),  Curb-To-Curb Width: 6.0m (19.7ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 32.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.6 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: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2021,  Bridge Improvement Cost: $171,000,  Roadway Improvement Cost: $17,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 31831,  Location: 083160408 (Lat: 42.022153,  Lng: -92.712378),  Route carried "on" structure: County highway ,  Year Built: 1920,  Year Reconstructed: 2004,  Status: Posted for load-capacity,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 45 (year 2017),  Average Future Daily Traffic: 45 (year 2040),  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.224,  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: 10.1m (33.1ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 32.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.4 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: 5.60m (18.37ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $134,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 318341,  Location: 083160903 (Lat: 42.020950,  Lng: -92.718261),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 100 (year 2021),  Average Future Daily Traffic: 100 (year 2040),  Design Load: HS 20,  Features Intersected: BRANCH IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.334,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.0m (29.5ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 23.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 17.6 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: Equal to present desirable criteria,  Length Of Structure Improvement: 8.00m (26.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 318351,  Location: 083160904 (Lat: 42.015519,  Lng: -92.723183),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 3.90m (12.80ft),  Average Daily Traffic: 160 (year 2021),  Average Future Daily Traffic: 160 (year 2040),  Design Load: H 20,  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.172,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  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: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 52.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.2 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: Equal to present minimum criteria,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 31836,  Location: 083160906 (Lat: 42.009433,  Lng: -92.722528),  Route carried "on" structure: County highway ,  Year Built: 1954,  Year Reconstructed: 2011,  Status: Open,  Structure Length: 15.94m (52.30ft),  Average Daily Traffic: 210 (year 2021),  Average Future Daily Traffic: 210 (year 2040),  Design Load: H 15,  Features Intersected: IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.244,  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: 6,  Length of Maximum Span: 28.3m (92.8ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 48.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 27.0 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: 54.10m (177.49ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $1,785,000,  Roadway Improvement Cost: $179,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 318375,  Location: 083161504 (Lat: 41.994044,  Lng: -92.698528),  Route carried "on" structure: County highway ,  Year Built: 1947,  Status: Closed,  Structure Length: 5.15m (16.90ft),  Average Daily Traffic: 220 (year 2017),  Average Future Daily Traffic: 220 (year 2035),  Features Intersected: IOWA RIVER OVERFLOW,  Facility Carried by Structure: IRR LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.386,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 5.4m (17.7ft),  Out-to-Out Width: 5.9m (19.4ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Failed,  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: 20.00m (65.62ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2015,  Bridge Improvement Cost: $456,000,  Roadway Improvement Cost: $46,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 31839,  Location: 083162204 (Lat: 41.989939,  Lng: -92.698731),  Route carried "on" structure: County highway ,  Year Built: 1953,  Status: Closed,  Structure Length: 4.79m (15.72ft),  Average Daily Traffic: 220 (year 2017),  Average Future Daily Traffic: 220 (year 2035),  Design Load: H 15,  Features Intersected: IOWA RIVER OVERFLOW,  Facility Carried by Structure: IRR-LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.930,  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: 3,  Length of Maximum Span: 15.9m (52.2ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Satisfactory,  Deck Geometry: Meets minimum limits,  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: > 39.9% below),  Length Of Structure Improvement: 20.10m (65.94ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2015,  Bridge Improvement Cost: $458,000,  Roadway Improvement Cost: $46,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 318421,  Location: 083162605 (Lat: 41.964706,  Lng: -92.670164),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 3.90m (12.80ft),  Average Daily Traffic: 440 (year 2021),  Average Future Daily Traffic: 440 (year 2040),  Design Load: H 20,  Features Intersected: RAVEN CREEK,  Facility Carried by Structure: IRR-FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.548,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.4m (44.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 52.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.2 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: Better than present minimum criteria,  Length Of Structure Improvement: 12.80m (41.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 318431,  Location: 083162901 (Lat: 41.978672,  Lng: -92.730728),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 2.29m (7.51ft),  Average Daily Traffic: 340 (year 2021),  Truck Traffic: 9%,  Average Future Daily Traffic: 340 (year 2038),  Design Load: HS 20,  Features Intersected: INDIAN CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.908,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 8.8m (28.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  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: Better than present minimum criteria,  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: 7.50m (24.61ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2018,  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: 318441,  Location: 083162901 (Lat: 41.978692,  Lng: -92.728458),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 0.61m (2.00ft),  Average Daily Traffic: 340 (year 2021),  Truck Traffic: 9%,  Average Future Daily Traffic: 340 (year 2040),  Design Load: HS 20,  Features Intersected: BRANCH INDIAN CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.095,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  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 minimum criteria,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.00m (6.56ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 31845,  Location: 083162902 (Lat: 41.974528,  Lng: -92.746872),  Route carried "on" structure: County highway ,  Year Built: 1940,  Year Reconstructed: 2012,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 50 (year 2017),  Average Future Daily Traffic: 50 (year 2040),  Features Intersected: INDIAN CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.461,  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: 6.0m (19.7ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 42.0 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: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $171,000,  Roadway Improvement Cost: $17,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 503151,  Location: 083162105 (Lat: 41.979686,  Lng: -92.717964),  Route carried "on" structure: City street ,  Year Built: 2006,  Status: Open,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 210 (year 2017),  Average Future Daily Traffic: 210 (year 2038),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: BROAD STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.441,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft),  Curb-To-Curb Width: 13.1m (43.0ft),  Out-to-Out Width: 14.0m (45.9ft)

Condition: Channel: Good,  Culverts: 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: 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,  Length Of Structure Improvement: 4.20m (13.78ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2018,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 608095,  Location: 0.9 MI E OF W JCT SR T47 (Lat: 42.002153,  Lng: -92.712842),  Route carried "on" structure: US 30,  Year Built: 2002,  Status: Open,  Structure Length: 16.58m (54.40ft),  Average Daily Traffic: 5,050 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 5,050 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 218.449,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 14.0m (45.9ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 36.9m (121.1ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 89.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.0 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,  Underwater Inspection Frequency: Every 48 months,  Inspection Date: November 2020,  Underwater Inspection Date: November 2018,  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: 700945,  Location: 0.6 MI. W. OF CO. RD. T47 (Lat: 42.000367,  Lng: -92.704253),  Route carried "on" structure: US 30,  Year Built: 2020,  Status: Open,  Structure Length: 4.66m (15.29ft),  Average Daily Traffic: 5,050 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 5,050 (year 2040),  Design Load: HL 93,  Features Intersected: IOWA RIVER EAST OVERFLOW
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 314.595,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.0m (59.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Excellent,  Channel: Excellent,  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: Somewhat better than minimum adequacy,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 70095,  Location: 0.6 MI. W. OF CO. RD. T47 (Lat: 42.000533,  Lng: -92.703711),  Route carried "on" structure: US 30,  Year Built: 2021,  Status: Open,  Structure Length: 4.66m (15.29ft),  Average Daily Traffic: 5,050 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 5,050 (year 2041),  Design Load: HL 93,  Features Intersected: IOWA RIVER EAST OVERFLOW
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 217.672,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.0m (59.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Excellent,  Channel: Excellent,  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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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