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


  • National Bridge Inventory (NBI) Statistics
  • 22Number of bridges
  • 233ft / 70.7mTotal length
  • 32,220Total average daily traffic
  • 3,779Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Le Grand
  • No street view available for this location

New bridges in Le Grand, IA - historical statistics
  • New bridges - historical statistics
  • 11900-1909
  • 21910-1919
  • 31950-1959
  • 31960-1969
  • 31970-1979
  • 11980-1989
  • 72000-2009
  • 12010-2019
  • 12020-2022
Reconstructed bridges in Le Grand, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11950-1959
  • 01960-1969
  • 11970-1979
  • 01980-1989
  • 11990-1999
Average Bridge Daily Traffic in Le Grand, IA
Average Bridge Truck Traffic in Le Grand, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 17.6%Very good
  • 23.5%Good
  • 11.8%Satisfactory
  • 17.6%Fair
  • 17.6%Poor
  • 11.8%Serious
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 41.2%Very good
  • 5.9%Good
  • 23.5%Satisfactory
  • 17.6%Fair
  • 5.9%Poor
  • 5.9%Serious
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 5.9%Excellent
  • 11.8%Very good
  • 29.4%Good
  • 11.8%Satisfactory
  • 17.6%Fair
  • 11.8%Poor
  • 11.8%Serious
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 6.7%Excellent
  • 6.7%Very good
  • 13.3%Good
  • 46.7%Satisfactory
  • 26.7%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Good
  • 33.3%Satisfactory
  • 33.3%Fair
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Structure Number: 341,  Location: 1.6 MI. E OF JCT. US 61 (Lat: 41.595664,  Lng: -90.539286),  Route carried "on" structure: City street ,  Year Built: 1963,  Status: Open,  Structure Length: 6.86m (22.51ft),  Average Daily Traffic: 3,380 (year 2014),  Average Future Daily Traffic: 3,380 (year 2040),  Design Load: H 15,  Features Intersected: I-80,  Facility Carried by Structure: JERSEY RIDGE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.318,  Lanes on structure: 2,  Lanes under structure: 5,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 21.0m (68.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 51.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 15.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of replacement,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 3429,  Location: 1.0 mi. W of Jct. IA 14 (Lat: 41.010914,  Lng: -93.324717),  Route carried "on" structure: US 34,  Year Built: 1960,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 2,930 (year 2020),  Truck Traffic: 21%,  Average Future Daily Traffic: 2,930 (year 2041),  Design Load: H 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 224.188,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 14.0m (45.9ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Fair,  Culverts: Satisfactory,  Operating Rating: 87.5 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: 67.4 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 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: July 2021
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Structure Number: 35501,  Location: 2.5 MILES S OF JCT US 30 (Lat: 41.976122,  Lng: -92.785431),  Route carried "on" structure: State highway 146,  Year Built: 1979,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 2,420 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 2,420 (year 2041),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 65.370,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 47.3 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: 36.6 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021
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Structure Number: 183102,  Location: 099122602 (Lat: 43.365183,  Lng: -92.238639),  Route carried "on" structure: County highway ,  Year Built: 2021,  Status: Open,  Structure Length: 1.98m (6.50ft),  Average Daily Traffic: 20 (year 2013),  Average Future Daily Traffic: 20 (year 2041),  Features Intersected: S BR TURKEY RIVER,  Facility Carried by Structure: S BRANCH RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.244,  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: 2,  Length of Maximum Span: 9.9m (32.5ft),  Curb-To-Curb Width: 7.2m (23.6ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Excellent,  Channel: Excellent,  Operating Rating: 44.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 2423,  Location: 083170104 (Lat: 42.029583,  Lng: -92.784486),  Route carried "on" structure: County highway ,  Year Built: 1953,  Year Reconstructed: 1981,  Status: Open,  Structure Length: 16.34m (53.61ft),  Average Daily Traffic: 1,390 (year 2021),  Truck Traffic: 19%,  Average Future Daily Traffic: 1,390 (year 2040),  Design Load: H 15,  Features Intersected: IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.727,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 35.7m (117.1ft),  Curb-To-Curb Width: 9.4m (30.8ft),  Out-to-Out Width: 9.9m (32.5ft)

Condition: Deck: Poor,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Fair,  Operating Rating: 26.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 16.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 59.00m (193.57ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 48 months,  Inspection Date: November 2020,  Underwater Inspection Date: October 2020,  Bridge Improvement Cost: $1,681,000,  Roadway Improvement Cost: $168,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 24239,  Location: 083171103 (Lat: 42.013833,  Lng: -92.799058),  Route carried "on" structure: County highway ,  Year Built: 1956,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 50 (year 2021),  Average Future Daily Traffic: 50 (year 2040),  Design Load: H 15,  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.520,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 48.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 25.1 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 4.50m (14.76ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 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: 242401,  Location: 083171108 (Lat: 42.013056,  Lng: -92.804189),  Route carried "on" structure: County highway ,  Year Built: 1916,  Status: Posted for load,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 140 (year 2013),  Average Future Daily Traffic: 140 (year 2040),  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.545,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Serious,  Superstructure: Serious,  Substructure: Poor,  Channel: Fair,  Operating Rating: 22.6 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 8.0 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: High priority of replacement,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 5.20m (17.06ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $230,000,  Roadway Improvement Cost: $23,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 24243,  Location: 083171404 (Lat: 41.994964,  Lng: -92.804328),  Route carried "on" structure: County highway ,  Year Built: 1978,  Year Reconstructed: 2001,  Status: Posted for load,  Structure Length: 1.04m (3.41ft),  Average Daily Traffic: 20 (year 2021),  Average Future Daily Traffic: 20 (year 2041),  Features Intersected: DAVISONS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.514,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Serious,  Channel: Fair,  Operating Rating: 25.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of corrective action,  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: 30.0 - 39.9% below),  Length Of Structure Improvement: 3.40m (11.15ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: November 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: 242461,  Location: 083172301 (Lat: 41.992183,  Lng: -92.802914),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 2.29m (7.51ft),  Average Daily Traffic: 30 (year 2013),  Average Future Daily Traffic: 30 (year 2038),  Design Load: HS 20,  Features Intersected: DAVISONS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.538,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  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: 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: 76.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 45.5 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: 7.50m (24.61ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 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: 24247,  Location: 083172504 (Lat: 41.970425,  Lng: -92.775594),  Route carried "on" structure: County highway ,  Year Built: 1951,  Status: Posted for load,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 20 (year 2013),  Average Future Daily Traffic: 20 (year 2041),  Design Load: H 15,  Features Intersected: DAVISONS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.795,  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: 6.4m (21.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 16.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 11.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of corrective action,  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: 4.50m (14.76ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: November 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: 242481,  Location: 083172601 (Lat: 41.978031,  Lng: -92.791867),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 2.29m (7.51ft),  Average Daily Traffic: 40 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 40 (year 2038),  Design Load: H 20,  Features Intersected: DAVISONS CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.001,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Skew: 3 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: 9.2m (30.2ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 52.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 33.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 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: 242485,  Location: 083172601 (Lat: 41.978014,  Lng: -92.799586),  Route carried "on" structure: County highway ,  Year Built: 1962,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 40 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 40 (year 2040),  Design Load: H 20,  Features Intersected: CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.363,  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: Fair,  Operating Rating: 38.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 22.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.20m (7.22ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 24325,  Location: 084172502 (Lat: 42.054606,  Lng: -92.785786),  Route carried "on" structure: County highway ,  Year Built: 1917,  Status: Posted for load-capacity,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 110 (year 2021),  Average Future Daily Traffic: 110 (year 2041),  Features Intersected: CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.516,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 5.2m (17.1ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 59.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 35.1 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $132,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 31832,  Location: 083160506 (Lat: 42.030886,  Lng: -92.728097),  Route carried "on" structure: County highway ,  Year Built: 1900,  Year Reconstructed: 1958,  Status: Posted for load-capacity,  Structure Length: 1.34m (4.40ft),  Average Daily Traffic: 90 (year 2017),  Average Future Daily Traffic: 90 (year 2040),  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 15.102,  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: 13.1m (43.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Serious,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 30.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 16.9 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: 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: 319391,  Location: 084162901 (Lat: 42.063994,  Lng: -92.743228),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 15 (year 2017),  Average Future Daily Traffic: 15 (year 2040),  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.923,  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: 3,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 7.2m (23.6ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 41.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.9 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: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 4.20m (13.78ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 319421,  Location: 084163203 (Lat: 42.049667,  Lng: -92.734372),  Route carried "on" structure: County highway ,  Year Built: 2013,  Status: Open,  Structure Length: 2.83m (9.28ft),  Average Daily Traffic: 45 (year 2017),  Average Future Daily Traffic: 45 (year 2038),  Design Load: HL 93,  Features Intersected: SUGAR CREEK,  Facility Carried by Structure: 270TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.953,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 10.7m (35.1ft),  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: 66.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.0 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: Superior to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 48 months,  Inspection Date: September 2018,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 608245,  Location: AT JUNCTION WITH IA 146 (Lat: 42.011797,  Lng: -92.785617),  Route carried "on" structure: US 30,  Year Built: 2002,  Status: Open,  Structure Length: 6.19m (20.31ft),  Average Daily Traffic: 4,200 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 4,200 (year 2041),  Design Load: HS 20,  Features Intersected: IOWA #146
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 307.645,  Lanes on structure: 2,  Lanes under 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: 32.6m (107.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 83.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 42.9 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,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 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: 60825,  Location: AT JUNCTION WITH IA 146 (Lat: 42.012056,  Lng: -92.784842),  Route carried "on" structure: US 30,  Year Built: 2002,  Status: Open,  Structure Length: 6.19m (20.31ft),  Average Daily Traffic: 4,150 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 4,150 (year 2041),  Design Load: HS 20,  Features Intersected: IOWA #146
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 224.603,  Lanes on structure: 2,  Lanes under structure: 2,  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: 32.6m (107.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 82.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.8 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,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 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: 608255,  Location: 0.5 MILE W OF JCT IA 146 (Lat: 42.010081,  Lng: -92.793614),  Route carried "on" structure: US 30,  Year Built: 2004,  Status: Open,  Structure Length: 7.86m (25.79ft),  Average Daily Traffic: 5,450 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 5,450 (year 2041),  Design Load: HS 20,  Features Intersected: UPRR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 306.950,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 34.1m (111.9ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 71.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.6 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,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 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: 608265,  Location: 0.5 MILE W OF JCT IA 146 (Lat: 42.010486,  Lng: -92.793200),  Route carried "on" structure: US 30,  Year Built: 2003,  Status: Open,  Structure Length: 7.86m (25.79ft),  Average Daily Traffic: 5,450 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 5,450 (year 2041),  Design Load: HS 20,  Features Intersected: UPRR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 225.324,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 34.1m (111.9ft),  Curb-To-Curb Width: 11.9m (39.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 79.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.9 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,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 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: 608245,  Location: AT JUNCTION WITH IA 146 (Lat: 42.011797,  Lng: -92.785617),  Route carried "under" structure: State highway 146,  Year Built: 2002,  Structure Length: 0. m,  Average Daily Traffic: 1,115 (year 2020),  Truck Traffic: 8%,  Features Intersected: IOWA #146,  Facility Carried by Structure: US 30 EB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 69.326,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.6m (107.0ft)

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Structure Number: 60825,  Location: AT JUNCTION WITH IA 146 (Lat: 42.012056,  Lng: -92.784842),  Route carried "under" structure: State highway 146,  Year Built: 2002,  Structure Length: 0. m,  Average Daily Traffic: 1,115 (year 2020),  Truck Traffic: 8%,  Features Intersected: IOWA #146,  Facility Carried by Structure: US 30 WB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 69.355,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.6m (107.0ft)

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