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


  • National Bridge Inventory (NBI) Statistics
  • 16Number of bridges
  • 154ft / 47.5mTotal length
  • 270,990Total average daily traffic
  • 48,624Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Saylorville
  • No street view available for this location

New bridges in Saylorville, IA - historical statistics
  • New bridges - historical statistics
  • 81950-1959
  • 11970-1979
  • 11980-1989
  • 11990-1999
  • 32000-2009
  • 22010-2019
Reconstructed bridges in Saylorville, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 31980-1989
  • 31990-1999
Average Bridge Daily Traffic in Saylorville, IA
Average Bridge Truck Traffic in Saylorville, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 25.0%Good
  • 25.0%Satisfactory
  • 50.0%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 12.5%Very good
  • 75.0%Good
  • 12.5%Satisfactory
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 12.5%Very good
  • 12.5%Good
  • 50.0%Satisfactory
  • 25.0%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 8.3%Very good
  • 75.0%Good
  • 16.7%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 16.7%Very good
  • 66.7%Good
  • 16.7%Satisfactory
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Structure Number: 4153,  Location: 0.8 MI. W OF JCT. IA 415 (Lat: 41.649383,  Lng: -93.634856),  Route carried "on" structure: Interstate 80,  Year Built: 1958,  Year Reconstructed: 1990,  Status: Open,  Structure Length: 3.41m (11.19ft),  Average Daily Traffic: 42,800 (year 2020),  Truck Traffic: 19%,  Average Future Daily Traffic: 42,800 (year 2040),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 216.325,  Lanes on structure: 3,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 21.0m (68.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 19.1m (62.7ft),  Out-to-Out Width: 20.4m (66.9ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 60.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior 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: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 4154,  Location: 0.8 mi. W of Jct. IA #415 (Lat: 41.649561,  Lng: -93.634447),  Route carried "on" structure: Interstate 80,  Year Built: 1958,  Year Reconstructed: 1990,  Status: Open,  Structure Length: 3.41m (11.19ft),  Average Daily Traffic: 42,800 (year 2020),  Truck Traffic: 19%,  Average Future Daily Traffic: 42,800 (year 2040),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 276.781,  Lanes on structure: 3,  Owner: State Highway Agency,  Approaching Roadway Width: 21.0m (68.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 19.1m (62.7ft),  Out-to-Out Width: 20.4m (66.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Fair,  Channel: Good,  Operating Rating: 66.6 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: Somewhat better than minimum adequacy,  Deck Geometry: Superior 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: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 4155,  Location: 0.5 MI. W OF JCT. 415 (Lat: 41.649389,  Lng: -93.629150),  Route carried "on" structure: Interstate 80,  Year Built: 1958,  Year Reconstructed: 1991,  Status: Open,  Structure Length: 5.18m (16.99ft),  Average Daily Traffic: 39,150 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 39,150 (year 2041),  Design Load: HS 20,  Features Intersected: SAYLOR CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 216.800,  Lanes on structure: 3,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 20.7m (67.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 19.0m (62.3ft),  Out-to-Out Width: 20.4m (66.9ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 65.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 23.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior 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: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 4156,  Location: 0.5 mi. W of Jct. IA 415 (Lat: 41.649569,  Lng: -93.628508),  Route carried "on" structure: Interstate 80,  Year Built: 1958,  Year Reconstructed: 1990,  Status: Open,  Structure Length: 5.18m (16.99ft),  Average Daily Traffic: 39,150 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 39,150 (year 2040),  Design Load: HS 20,  Features Intersected: SAYLOR CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 276.286,  Lanes on structure: 3,  Owner: State Highway Agency,  Approaching Roadway Width: 26.2m (86.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 19.0m (62.3ft),  Out-to-Out Width: 20.3m (66.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 63.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 25.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior 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: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 4157,  Location: 0.4 mi. W of Jct. IA 415 (Lat: 41.649389,  Lng: -93.628164),  Route carried "on" structure: Interstate 80,  Year Built: 1958,  Year Reconstructed: 1991,  Status: Open,  Structure Length: 4.30m (14.11ft),  Average Daily Traffic: 39,150 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 39,150 (year 2041),  Design Load: HS 20,  Features Intersected: 6TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 216.882,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 20.7m (67.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 15.9m (52.2ft),  Curb-To-Curb Width: 19.0m (62.3ft),  Out-to-Out Width: 20.3m (66.6ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Fair,  Operating Rating: 63.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 4158,  Location: 0.4 mi. W of Jct. IA 415 (Lat: 41.649569,  Lng: -93.627647),  Route carried "on" structure: Interstate 80,  Year Built: 1958,  Year Reconstructed: 1991,  Status: Open,  Structure Length: 4.30m (14.11ft),  Average Daily Traffic: 39,150 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 39,150 (year 2041),  Design Load: HS 20,  Features Intersected: 6TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 276.215,  Lanes on structure: 3,  Lanes under structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 20.7m (67.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 15.5m (50.9ft),  Curb-To-Curb Width: 19.0m (62.3ft),  Out-to-Out Width: 20.3m (66.6ft)

Condition: Deck: Fair,  Superstructure: Very good,  Substructure: Satisfactory,  Operating Rating: 65.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 281341,  Location: 079240338 (Lat: 41.673239,  Lng: -93.628744),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 1.74m (5.71ft),  Average Daily Traffic: 3,850 (year 2016),  Average Future Daily Traffic: 3,850 (year 2040),  Design Load: HS 20,  Features Intersected: SAYLOR CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.142,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  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: Good,  Operating Rating: 59.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020
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Structure Number: 281351,  Location: 079240351 (Lat: 41.680358,  Lng: -93.621108),  Route carried "on" structure: County highway ,  Year Built: 1972,  Status: Open,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 5,200 (year 2016),  Truck Traffic: 3%,  Average Future Daily Traffic: 5,200 (year 2041),  Design Load: HS 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.212,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Skew: 3 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: 48.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.30m (14.11ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $65,000,  Roadway Improvement Cost: $10,000
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Structure Number: 281361,  Location: 079240421 (Lat: 41.680342,  Lng: -93.639514),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 3,770 (year 2016),  Average Future Daily Traffic: 3,770 (year 2041),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.034,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  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: Good,  Operating Rating: 59.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than 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: March 2021
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Structure Number: 281421,  Location: 079241501 (Lat: 41.658767,  Lng: -93.629689),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 1.43m (4.69ft),  Average Daily Traffic: 960 (year 2016),  Truck Traffic: 29%,  Average Future Daily Traffic: 960 (year 2041),  Design Load: HS 20,  Features Intersected: CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.990,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  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: Good,  Operating Rating: 60.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021
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Structure Number: 282041,  Location: 080243204 (Lat: 41.700186,  Lng: -93.668386),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 5.00m (16.40ft),  Average Daily Traffic: 1,760 (year 2016),  Average Future Daily Traffic: 1,760 (year 2041),  Design Load: HS 20,  Features Intersected: ROCK CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.480,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.6m (61.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.2m (33.5ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 46.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 27.7 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: Equal to present desirable criteria,  Length Of Structure Improvement: 16.40m (53.81ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $10,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 282061,  Location: 080243409 (Lat: 41.692389,  Lng: -93.641286),  Route carried "on" structure: County highway ,  Year Built: 2015,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 40 (year 2016),  Average Future Daily Traffic: 40 (year 2042),  Design Load: HL 93,  Features Intersected: CREEK,  Facility Carried by Structure: NW 72ND PLACE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.459,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 58.6 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: 45.4 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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022
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Structure Number: 36574,  Location: 0107924 (Lat: 41.658536,  Lng: -93.634928),  Route carried "on" structure: County highway ,  Year Built: 2011,  Status: Open,  Structure Length: 1.15m (3.77ft),  Average Daily Traffic: 960 (year 2016),  Truck Traffic: 29%,  Average Future Daily Traffic: 960 (year 2040),  Design Load: HS 20,  Features Intersected: DRAINAGE DISTRICT 1,  Facility Carried by Structure: NW 54TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.548,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  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: Good,  Operating Rating: 45.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020
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Structure Number: 601295,  Location: 1.9 MILES N OF JCT IA 160 (Lat: 41.703158,  Lng: -93.657719),  Route carried "on" structure: State highway 415,  Year Built: 1993,  Status: Open,  Structure Length: 8.87m (29.10ft),  Average Daily Traffic: 8,200 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 8,200 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.454,  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: 29.0m (95.1ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.4m (47.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Good,  Operating Rating: 90.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 43.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 4157,  Location: 0.4 mi. W of Jct. IA 415 (Lat: 41.649389,  Lng: -93.628164),  Route carried "under" structure: County highway ,  Year Built: 1958,  Structure Length: 0. m,  Average Daily Traffic: 2,025 (year 2016),  Features Intersected: 6TH AVE,  Facility Carried by Structure: NB I-35,EB I-80
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.460,  Lanes on structure: 3,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 15.9m (52.2ft)

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Structure Number: 4158,  Location: 0.4 mi. W of Jct. IA 415 (Lat: 41.649569,  Lng: -93.627647),  Route carried "under" structure: County highway ,  Year Built: 1958,  Structure Length: 0. m,  Average Daily Traffic: 2,025 (year 2016),  Features Intersected: 6TH AVE,  Facility Carried by Structure: SB I-35,WB I-80
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.481,  Lanes on structure: 3,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 15.5m (50.9ft)

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