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

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Structure Number: 1831,  Location: 2.2 mi. S of Jct. I-80 (Lat: 41.604556,  Lng: -91.036064),  Route carried "on" structure: US 6,  Year Built: 1959,  Status: Open,  Structure Length: 3.11m (10.20ft),  Average Daily Traffic: 3,240 (year 2020),  Truck Traffic: 16%,  Average Future Daily Traffic: 3,240 (year 2041),  Design Load: HS 20,  Features Intersected: OTTER CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 465.015,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 53.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.0 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: 1832,  Location: At E Jct. Iowa 38 (Lat: 41.636444,  Lng: -91.035672),  Route carried "on" structure: US 6,  Year Built: 1959,  Status: Open,  Structure Length: 6.68m (21.92ft),  Average Daily Traffic: 2,050 (year 2020),  Truck Traffic: 21%,  Average Future Daily Traffic: 2,050 (year 2040),  Design Load: HS 20,  Features Intersected: I-80
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 50.392,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 79.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.7 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: Better than 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: 1865,  Location: 1.5 MI. W OF E JCT. IA 38 (Lat: 41.641819,  Lng: -91.063922),  Route carried "on" structure: Interstate 80,  Year Built: 1960,  Status: Open,  Structure Length: 7.47m (24.51ft),  Average Daily Traffic: 15,700 (year 2020),  Truck Traffic: 41%,  Average Future Daily Traffic: 15,700 (year 2040),  Design Load: HS 20,  Features Intersected: SUGAR CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 433.034,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 3 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 28.7m (94.2ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.9m (35.8ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  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: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 1868,  Location: 1.0 mi. E of E jct. IA 38 (Lat: 41.633247,  Lng: -91.017758),  Route carried "on" structure: Interstate 80,  Year Built: 1959,  Year Reconstructed: 1991,  Status: Open,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 29,600 (year 2020),  Truck Traffic: 43%,  Average Future Daily Traffic: 29,600 (year 2041),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 437.008,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 24.4m (80.1ft),  Skew: 20 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 41.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 24.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021

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Structure Number: 37861,  Location: 3.6 MI. W OF JCT. IOWA 38 (Lat: 41.567164,  Lng: -91.108175),  Route carried "on" structure: US 6,  Year Built: 1972,  Status: Open,  Structure Length: 31.58m (103.61ft),  Average Daily Traffic: 1,660 (year 2020),  Truck Traffic: 8%,  Average Future Daily Traffic: 1,660 (year 2041),  Design Load: HS 20,  Features Intersected: CEDAR RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 454.939,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 8,  Length of Maximum Span: 41.8m (137.1ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.4m (47.2ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 65.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: May 2021,  Underwater Inspection Date: August 2017,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 3787,  Location: At the jct. of SR X54 (Lat: 41.566311,  Lng: -91.082281),  Route carried "on" structure: ServiceCounty highway ,  Year Built: 1971,  Status: Open,  Structure Length: 5.40m (17.72ft),  Average Daily Traffic: 10 (year 2018),  Truck Traffic: 12%,  Average Future Daily Traffic: 1,300 (year 2041),  Design Load: H 20,  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: X 54
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.608,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 14.9m (48.9ft),  Curb or Sidewalk Widths: Left: 0.3m (1.0ft),  Right: 0.3m (1.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 63.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: March 2021,  Underwater Inspection Date: August 2017,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 37881,  Location: 1.6 MI. W OF W JCT IA 38 (Lat: 41.566719,  Lng: -91.069594),  Route carried "on" structure: US 6,  Year Built: 1973,  Status: Open,  Structure Length: 6.49m (21.29ft),  Average Daily Traffic: 1,660 (year 2020),  Truck Traffic: 8%,  Average Future Daily Traffic: 1,660 (year 2041),  Design Load: HS 20,  Features Intersected: SUGAR CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 458.156,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.4m (47.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 74.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 44.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 3789,  Location: 0.8 MI. E OF JCT IA 38 (Lat: 41.578731,  Lng: -91.038175),  Route carried "on" structure: US 6,  Year Built: 1924,  Year Reconstructed: 1965,  Status: Open,  Structure Length: 3.72m (12.20ft),  Average Daily Traffic: 4,600 (year 2020),  Truck Traffic: 11%,  Average Future Daily Traffic: 4,600 (year 2041),  Design Load: HS 20,  Features Intersected: MUD CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 462.131,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.3m (46.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 56.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 379,  Location: 1.2 MI. E OF JCT. IA 38 (Lat: 41.583444,  Lng: -91.038208),  Route carried "on" structure: US 6,  Year Built: 1930,  Year Reconstructed: 1965,  Status: Open,  Structure Length: 5.21m (17.09ft),  Average Daily Traffic: 4,600 (year 2020),  Truck Traffic: 11%,  Average Future Daily Traffic: 4,600 (year 2041),  Design Load: HS 20,  Features Intersected: IAIS RR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 462.654,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 53.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 38161,  Location: 2.2 mi. S of Jct. U.S. 6 (Lat: 41.534450,  Lng: -91.038308),  Route carried "on" structure: State highway 38,  Year Built: 1972,  Status: Open,  Structure Length: 4.69m (15.39ft),  Average Daily Traffic: 4,450 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 4,450 (year 2040),  Design Load: HS 20,  Features Intersected: MOSQUITO CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.287,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.4m (47.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 71.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.8 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: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 10154,  Location: 079011901 (Lat: 41.641036,  Lng: -91.014031),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Posted for load,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 45 (year 2018),  Average Future Daily Traffic: 45 (year 2041),  Features Intersected: OTTER CR,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.073,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.9m (22.6ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 33.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 20.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  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: 10.0 - 19.9% below),  Length Of Structure Improvement: 5.50m (18.04ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $119,000,  Roadway Improvement Cost: $12,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 101551,  Location: 079011902 (Lat: 41.634558,  Lng: -91.016328),  Route carried "on" structure: County highway ,  Year Built: 1975,  Year Reconstructed: 1999,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2040),  Features Intersected: OTTER CR,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.711,  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: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 7.7m (25.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 32.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 23.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 4.80m (15.75ft),  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: 101561,  Location: 079012001 (Lat: 41.640839,  Lng: -90.983256),  Route carried "on" structure: County highway ,  Year Built: 2000,  Status: Open,  Structure Length: 2.38m (7.81ft),  Average Daily Traffic: 60 (year 2018),  Average Future Daily Traffic: 60 (year 2039),  Design Load: HS 20,  Features Intersected: LITTLE ELKHORN CR,  Facility Carried by Structure: 310TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.636,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 1 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: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 86.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 51.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable 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: May 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: 101602,  Location: 079012802 (Lat: 41.622833,  Lng: -90.977381),  Route carried "on" structure: County highway ,  Year Built: 2002,  Status: Posted for load,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2041),  Features Intersected: LITTLE ELKHORN CR,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.418,  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: 11.3m (37.1ft),  Curb-To-Curb Width: 7.1m (23.3ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 28.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  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: 6.00m (19.69ft),  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: 10161,  Location: 079012803 (Lat: 41.619064,  Lng: -90.976022),  Route carried "on" structure: County highway ,  Year Built: 1915,  Status: Posted for load-capacity,  Structure Length: 0.88m (2.89ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2041),  Design Load: H 15,  Features Intersected: ELKHORN CREEK (LITTLE),  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.364,  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: 1,  Length of Maximum Span: 8.2m (26.9ft),  Curb-To-Curb Width: 5.2m (17.1ft),  Out-to-Out Width: 5.2m (17.1ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 43.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 23.3 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: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $182,000,  Roadway Improvement Cost: $18,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 101811,  Location: 079023603 (Lat: 41.611969,  Lng: -91.020933),  Route carried "on" structure: County highway ,  Year Built: 1993,  Status: Posted for load-capacity,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 20 (year 2018),  Average Future Daily Traffic: 20 (year 2040),  Features Intersected: OTTER CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 21.808,  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: 14.9m (48.9ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.0m (29.5ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 30.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 18.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 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: 257991,  Location: 078010506 (Lat: 41.583744,  Lng: -90.996697),  Route carried "on" structure: County highway ,  Year Built: 1971,  Status: Open,  Structure Length: 4.72m (15.49ft),  Average Daily Traffic: 1,550 (year 2018),  Average Future Daily Traffic: 1,550 (year 2041),  Design Load: H 20,  Features Intersected: MUD CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.941,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 13.7m (44.9ft),  Skew: 1 degrees,  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: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 59.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 40.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 15.00m (49.21ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 258001,  Location: 078010901 (Lat: 41.580867,  Lng: -90.973564),  Route carried "on" structure: County highway ,  Year Built: 2010,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 220 (year 2014),  Average Future Daily Traffic: 220 (year 2039),  Design Load: HS 20,  Features Intersected: CREEK,  Facility Carried by Structure: 110TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.545,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  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)

Condition: Channel: 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: September 2019

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Structure Number: 258091,  Location: 078020201 (Lat: 41.597408,  Lng: -91.053361),  Route carried "on" structure: County highway ,  Year Built: 1996,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 280 (year 2018),  Average Future Daily Traffic: 280 (year 2039),  Design Load: HS 20,  Features Intersected: OTTER CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.941,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 80.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 48.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: September 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: 258111,  Location: 078020924 (Lat: 41.569444,  Lng: -91.082431),  Route carried "on" structure: County highway ,  Year Built: 1971,  Status: Open,  Structure Length: 3.90m (12.80ft),  Average Daily Traffic: 1,910 (year 2018),  Average Future Daily Traffic: 1,910 (year 2041),  Design Load: H 20,  Features Intersected: OVERFLOW FROM SUGAR CREE,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.956,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Fair,  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: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 258121,  Location: 078021005 (Lat: 41.574378,  Lng: -91.064656),  Route carried "on" structure: County highway ,  Year Built: 2000,  Status: Open,  Structure Length: 5.09m (16.70ft),  Average Daily Traffic: 710 (year 2014),  Average Future Daily Traffic: 710 (year 2039),  Design Load: HS 20,  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: 112TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.729,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.6m (61.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 69.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 16.60m (54.46ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: September 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: 25813,  Location: 078021108 (Lat: 41.575656,  Lng: -91.057503),  Route carried "on" structure: County highway ,  Year Built: 1954,  Status: Posted for load,  Structure Length: 4.66m (15.29ft),  Average Daily Traffic: 45 (year 2014),  Average Future Daily Traffic: 45 (year 2041),  Design Load: H 15,  Features Intersected: MUD CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.977,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  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: 6.1m (20.0ft),  Out-to-Out Width: 6.6m (21.7ft)

Condition: Deck: Serious,  Superstructure: Serious,  Substructure: Serious,  Channel: Fair,  Operating Rating: 7.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 4.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: High priority of replacement,  Deck Geometry: Somewhat better than minimum adequacy,  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: > 39.9% below),  Length Of Structure Improvement: 18.30m (60.04ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: September 2021,  Bridge Improvement Cost: $550,000,  Roadway Improvement Cost: $55,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 258141,  Location: 078021204 (Lat: 41.579131,  Lng: -91.027239),  Route carried "on" structure: County highway ,  Year Built: 1996,  Status: Open,  Structure Length: 3.90m (12.80ft),  Average Daily Traffic: 160 (year 2014),  Average Future Daily Traffic: 160 (year 2039),  Design Load: HS 20,  Features Intersected: MUD CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.455,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 88.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 52.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: September 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: 25816,  Location: 078022602 (Lat: 41.535856,  Lng: -91.057706),  Route carried "on" structure: County highway ,  Year Built: 1956,  Status: Posted for load,  Structure Length: 2.13m (6.99ft),  Average Daily Traffic: 50 (year 2014),  Average Future Daily Traffic: 50 (year 2041),  Features Intersected: MOSQUITO CREEK,  Facility Carried by Structure: N ISETT AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.560,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 20.7m (67.9ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.9m (22.6ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 5.2 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: 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: 10.00m (32.81ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: September 2021,  Bridge Improvement Cost: $240,000,  Roadway Improvement Cost: $24,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 258171,  Location: 078022804 (Lat: 41.533911,  Lng: -91.086322),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 1,300 (year 2018),  Truck Traffic: 12%,  Average Future Daily Traffic: 1,300 (year 2040),  Design Load: H 20,  Features Intersected: MOSQUITO CK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.823,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 50.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 10.30m (33.79ft),  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: 258181,  Location: 078022806 (Lat: 41.528328,  Lng: -91.087017),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 2.10m (6.89ft),  Average Daily Traffic: 1,300 (year 2018),  Truck Traffic: 12%,  Average Future Daily Traffic: 1,300 (year 2041),  Design Load: H 20,  Features Intersected: MOSQUITO CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.200,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 20.7m (67.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 57.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 25.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 6.90m (22.64ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 365576,  Location: 079023201 (Lat: 41.612061,  Lng: -91.104125),  Route carried "on" structure: County highway ,  Year Built: 2013,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 100 (year 2018),  Average Future Daily Traffic: 100 (year 2040),  Features Intersected: SMALL STREAM,  Facility Carried by Structure: 330TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.877,  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: 7.6m (24.9ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 31.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.2 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 minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 1832,  Location: At E Jct. Iowa 38 (Lat: 41.636444,  Lng: -91.035672),  Route carried "under" structure: Interstate 80,  Year Built: 1959,  Structure Length: 0. m,  Average Daily Traffic: 29,000 (year 2020),  Truck Traffic: 43%,  Features Intersected: I-80,  Facility Carried by Structure: US 6 & IA 38
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 435.464,  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: 1864,  Location: 2.0 mi. E of W Jct. IA 38 (Lat: 41.643639,  Lng: -91.075611),  Route carried "under" structure: Interstate 80,  Year Built: 1960,  Structure Length: 0. m,  Average Daily Traffic: 31,400 (year 2020),  Truck Traffic: 41%,  Features Intersected: I-80,  Facility Carried by Structure: PINE AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 432.014,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.3m (73.2ft)

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Structure Number: 1869,  Location: 2.1 mi. E of E jct. IA 38 (Lat: 41.633167,  Lng: -90.996797),  Route carried "under" structure: Interstate 80,  Year Built: 1959,  Structure Length: 0. m,  Average Daily Traffic: 29,600 (year 2020),  Truck Traffic: 43%,  Features Intersected: I-80,  Facility Carried by Structure: FM Y-14
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 438.749,  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)