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


  • National Bridge Inventory (NBI) Statistics
  • 22Number of bridges
  • 105ft / 32.4mTotal length
  • 7,855Total average daily traffic
  • 1,085Total average daily truck traffic
  • 7,855Total future (year 2039) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Clarence
  • No street view available for this location

New bridges in Clarence, IA - historical statistics
  • New bridges - historical statistics
  • 11920-1929
  • 11930-1939
  • 21950-1959
  • 21970-1979
  • 21990-1999
  • 112000-2009
  • 32010-2019
Average Bridge Daily Traffic in Clarence, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 52.6%Very good
  • 21.1%Good
  • 5.3%Satisfactory
  • 5.3%Fair
  • 15.8%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 36.8%Very good
  • 26.3%Good
  • 15.8%Satisfactory
  • 15.8%Fair
  • 5.3%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 31.6%Very good
  • 47.4%Good
  • 5.3%Satisfactory
  • 5.3%Fair
  • 5.3%Poor
  • 5.3%Serious
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 40.9%Very good
  • 31.8%Good
  • 18.2%Satisfactory
  • 4.5%Fair
  • 4.5%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Very good
  • 66.7%Good
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Structure Number: 18271,  Location: 2.3 MI E OF E JCT IA #38 (Lat: 41.888636,  Lng: -91.088581),  Route carried "on" structure: US 30,  Year Built: 1974,  Status: Open,  Structure Length: 2.53m (8.30ft),  Average Daily Traffic: 3,730 (year 2020),  Truck Traffic: 15%,  Average Future Daily Traffic: 3,730 (year 2041),  Design Load: HS 20,  Features Intersected: MILL CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 452.243,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.5m (47.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 63.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable 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: 1828,  Location: 2.0 mi. E of Jct. SR X64 (Lat: 41.881231,  Lng: -91.013208),  Route carried "on" structure: US 30,  Year Built: 1955,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 2,630 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 2,630 (year 2040),  Design Load: H 20,  Features Intersected: DRAINAGE DITCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 458.600,  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: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 24.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 18.1 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020
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Structure Number: 103411,  Location: 081010501 (Lat: 41.858825,  Lng: -90.995450),  Route carried "on" structure: County highway ,  Year Built: 2008,  Status: Open,  Structure Length: 2.23m (7.32ft),  Average Daily Traffic: 70 (year 2018),  Average Future Daily Traffic: 70 (year 2039),  Design Load: HL 93,  Features Intersected: YANKEE RUN CREEK,  Facility Carried by Structure: TAYLOR AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.033,  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: 8.5m (27.9ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 69.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.8 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: 7.30m (23.95ft),  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: 103601,  Location: 081020303 (Lat: 41.852308,  Lng: -91.065031),  Route carried "on" structure: County highway ,  Year Built: 2001,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 60 (year 2018),  Average Future Daily Traffic: 60 (year 2040),  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.588,  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: 6.7m (22.0ft),  Curb-To-Curb Width: 7.8m (25.6ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 34.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 28.8 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: Equal to present desirable criteria,  Approach Roadway Alignment: Better than 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: 103652,  Location: 081021501 (Lat: 41.830378,  Lng: -91.070658),  Route carried "on" structure: County highway ,  Year Built: 2002,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 45 (year 2018),  Average Future Daily Traffic: 45 (year 2041),  Features Intersected: SMALL STREAM,  Facility Carried by Structure: 180TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.044,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: 7.5m (24.6ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 38.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 26.7 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: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.40m (7.87ft),  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: 103661,  Location: 081021603 (Lat: 41.830311,  Lng: -91.081208),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Posted for load,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 45 (year 2018),  Average Future Daily Traffic: 45 (year 2041),  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: 180TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.169,  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: 7.0m (23.0ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 5.6m (18.4ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 21.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 16.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of corrective action,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 4.50m (14.76ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $97,000,  Roadway Improvement Cost: $10,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 104431,  Location: 082012904 (Lat: 41.877231,  Lng: -90.995594),  Route carried "on" structure: County highway ,  Year Built: 2018,  Status: Open,  Structure Length: 2.53m (8.30ft),  Average Daily Traffic: 90 (year 2018),  Average Future Daily Traffic: 90 (year 2041),  Design Load: HL 93,  Features Intersected: YANKEE RUN CREEK,  Facility Carried by Structure: TAYLOR AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 31.080,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 24.4m (80.1ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 42.1 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  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: 104512,  Location: 082020102 (Lat: 41.944342,  Lng: -91.034739),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2039),  Design Load: HS 20,  Features Intersected: BR MILL CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 31.097,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.4m (21.0ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.2m (17.1ft)

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,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.70m (8.86ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: May 2019,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 104531,  Location: 082020106 (Lat: 41.933042,  Lng: -91.020008),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 3.54m (11.61ft),  Average Daily Traffic: 40 (year 2018),  Average Future Daily Traffic: 40 (year 2039),  Design Load: HS 20,  Features Intersected: MILL CR,  Facility Carried by Structure: ROOSEVELT AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.941,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.4m (44.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 83.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 50.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 11.60m (38.06ft),  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: 104541,  Location: 082020201 (Lat: 41.946603,  Lng: -91.053481),  Route carried "on" structure: County highway ,  Year Built: 2012,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 15 (year 2018),  Average Future Daily Traffic: 15 (year 2040),  Design Load: HL 93,  Features Intersected: BR MILL CR,  Facility Carried by Structure: CO LINE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 21.490,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 7.8m (25.6ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 52.2 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 40.2 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: May 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 104591,  Location: 082021001 (Lat: 41.932633,  Lng: -91.069628),  Route carried "on" structure: County highway ,  Year Built: 2012,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 40 (year 2018),  Average Future Daily Traffic: 40 (year 2041),  Features Intersected: MILL CREEK,  Facility Carried by Structure: E 63 (110TH)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.678,  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: 7.0m (23.0ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 37.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 31.3 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: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1046,  Location: 082021104 (Lat: 41.920094,  Lng: -91.055011),  Route carried "on" structure: County highway ,  Year Built: 1925,  Status: Posted for load,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 70 (year 2018),  Average Future Daily Traffic: 70 (year 2040),  Design Load: H 15,  Features Intersected: BR MILL CR,  Facility Carried by Structure: QUINCY AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.217,  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: 7.6m (24.9ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 5.7m (18.7ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Poor,  Channel: Fair,  Operating Rating: 30.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 18.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  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: 20.0 - 29.9% below),  Length Of Structure Improvement: 4.80m (15.75ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Bridge Improvement Cost: $104,000,  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: 10461,  Location: 082021204 (Lat: 41.922986,  Lng: -91.034897),  Route carried "on" structure: County highway ,  Year Built: 1958,  Status: Posted for load-capacity,  Structure Length: 4.45m (14.60ft),  Average Daily Traffic: 450 (year 2021),  Average Future Daily Traffic: 450 (year 2041),  Design Load: H 15,  Features Intersected: MILL CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.537,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 17.1m (56.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 34.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.3 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: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 14.60m (47.90ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $328,000,  Roadway Improvement Cost: $33,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 104642,  Location: 082021406 (Lat: 41.909881,  Lng: -91.050014),  Route carried "on" structure: County highway ,  Year Built: 1992,  Status: Open,  Structure Length: 4.30m (14.11ft),  Average Daily Traffic: 130 (year 2018),  Average Future Daily Traffic: 130 (year 2039),  Design Load: HS 20,  Features Intersected: MILL CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.902,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 71.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 38.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present desirable 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: 14.10m (46.26ft),  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: 104661,  Location: 082022101 (Lat: 41.903056,  Lng: -91.091194),  Route carried "on" structure: County highway ,  Year Built: 2004,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2041),  Design Load: HS 20,  Features Intersected: MILL CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.868,  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: 7.0m (23.0ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 34.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 25.8 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: Better than present minimum criteria,  Length Of Structure Improvement: 2.50m (8.20ft),  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: 104671,  Location: 082022106 (Lat: 41.896450,  Lng: -91.084078),  Route carried "on" structure: County highway ,  Year Built: 2004,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 80 (year 2018),  Average Future Daily Traffic: 80 (year 2041),  Design Load: HS 20,  Features Intersected: MILL CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 17.415,  Lanes on structure: 2,  Owner: County Highway Agency,  Maintenance Responsibility: Railroad,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 3 degrees,  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: 8.0m (26.2ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 34.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.7 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: Better than present minimum criteria,  Length Of Structure Improvement: 2.70m (8.86ft),  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: 104681,  Location: 082022106 (Lat: 41.890903,  Lng: -91.084119),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 80 (year 2018),  Average Future Daily Traffic: 80 (year 2041),  Design Load: HS 20,  Features Intersected: MILL CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.798,  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: 3.7m (12.1ft)

Condition: Channel: Very good,  Culverts: Very good,  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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Meets minimum limits,  Length Of Structure Improvement: 2.70m (8.86ft),  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: 10469,  Location: 082022201 (Lat: 41.903286,  Lng: -91.065342),  Route carried "on" structure: County highway ,  Year Built: 1930,  Status: Posted for load,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 20 (year 2018),  Average Future Daily Traffic: 20 (year 2040),  Features Intersected: MILL CR,  Facility Carried by Structure: 130TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.013,  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: 5.5m (18.0ft),  Out-to-Out Width: 5.5m (18.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Poor,  Operating Rating: 37.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 21.9 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: Meets minimum limits,  Approach Roadway Alignment: Meets minimum limits,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 8.00m (26.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Bridge Improvement Cost: $264,000,  Roadway Improvement Cost: $26,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 104702,  Location: 082022501 (Lat: 41.888428,  Lng: -91.017969),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 100 (year 2018),  Average Future Daily Traffic: 100 (year 2041),  Design Load: HS 20,  Features Intersected: BR YANKEE RUN,  Facility Carried by Structure: 140TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.996,  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: 7.0m (23.0ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Very good,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Good,  Operating Rating: 34.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 27.2 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 desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.40m (7.87ft),  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: Gravel
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Structure Number: 104722,  Location: 082023602 (Lat: 41.869353,  Lng: -91.034753),  Route carried "on" structure: County highway ,  Year Built: 2009,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 45 (year 2018),  Average Future Daily Traffic: 45 (year 2041),  Features Intersected: SMALL,  Facility Carried by Structure: ROSE AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 24.523,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 37.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.2 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: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 365115,  Location: 081021301 (Lat: 41.830042,  Lng: -91.017244),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 20 (year 2018),  Average Future Daily Traffic: 20 (year 2041),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: 180TH STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.481,  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: 6.1m (20.0ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 34.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 28.8 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: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.20m (7.22ft),  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: 365435,  Location: 081020507 (Lat: 41.852444,  Lng: -91.096325),  Route carried "on" structure: County highway ,  Year Built: 2009,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2040),  Design Load: HS 20,  Features Intersected: BR OF SUGAR CREEK,  Facility Carried by Structure: 165TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.990,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 7.8m (25.6ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 37.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 25.5 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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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