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


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 92ft / 27.6mTotal length
  • 470Total average daily traffic
  • 47Total average daily truck traffic
  • 470Total future (year 2039) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Ellston
  • No street view available for this location

New bridges in Ellston, IA - historical statistics
  • New bridges - historical statistics
  • 11930-1939
  • 21940-1949
  • 21950-1959
  • 21960-1969
  • 11980-1989
  • 11990-1999
  • 12000-2009
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 10.0%Very good
  • 10.0%Good
  • 50.0%Fair
  • 20.0%Poor
  • 10.0%Serious
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 20.0%Very good
  • 70.0%Fair
  • 10.0%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 20.0%Good
  • 10.0%Satisfactory
  • 30.0%Fair
  • 20.0%Poor
  • 20.0%Serious
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 20.0%Good
  • 40.0%Satisfactory
  • 40.0%Fair
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Structure Number: 29665,  Location: 069280601 (Lat: 40.811308,  Lng: -94.125267),  Route carried "on" structure: County highway ,  Year Built: 1947,  Status: Posted for load,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 10 (year 2016),  Average Future Daily Traffic: 10 (year 2040),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 15.764,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 4.8m (15.7ft),  Out-to-Out Width: 5.0m (16.4ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 11.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 7.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Equal to present desirable criteria,  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: 4.30m (14.11ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $90,000,  Roadway Improvement Cost: $4,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 29688,  Location: 069290101 (Lat: 40.811367,  Lng: -94.137797),  Route carried "on" structure: County highway ,  Year Built: 1958,  Year Reconstructed: 2012,  Status: Open,  Structure Length: 3.72m (12.20ft),  Average Daily Traffic: 10 (year 2016),  Average Future Daily Traffic: 10 (year 2040),  Features Intersected: E FK GRAND RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.708,  Lanes on structure: 1,  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: 4,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 5.0m (16.4ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 28.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 23.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 16.40m (53.81ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $341,000,  Roadway Improvement Cost: $34,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 29785,  Location: 070290101 (Lat: 40.897550,  Lng: -94.133206),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Posted for load,  Structure Length: 2.74m (8.99ft),  Average Daily Traffic: 30 (year 2016),  Average Future Daily Traffic: 30 (year 2041),  Features Intersected: E FK GRAND RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 27.459,  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: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 5.1m (16.7ft)

Condition: Deck: Serious,  Superstructure: Fair,  Substructure: Serious,  Channel: Fair,  Operating Rating: 5.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $260,000,  Roadway Improvement Cost: $26,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 29796,  Location: 070291201 (Lat: 40.883303,  Lng: -94.133564),  Route carried "on" structure: County highway ,  Year Built: 1969,  Status: Posted for load,  Structure Length: 1.49m (4.89ft),  Average Daily Traffic: 5 (year 2016),  Average Future Daily Traffic: 5 (year 2041),  Features Intersected: E FORK GRAND RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 22.252,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Poor,  Channel: Fair,  Operating Rating: 33.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 20.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  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: 10.0 - 19.9% below),  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $156,000,  Roadway Improvement Cost: $16,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Other
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Structure Number: 29797,  Location: 070291301 (Lat: 40.868917,  Lng: -94.131600),  Route carried "on" structure: County highway ,  Year Built: 1940,  Status: Posted for load-capacity,  Structure Length: 1.98m (6.50ft),  Average Daily Traffic: 5 (year 2016),  Average Future Daily Traffic: 5 (year 2041),  Features Intersected: E FK GRAND RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.042,  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: 3,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 5.0m (16.4ft),  Out-to-Out Width: 5.1m (16.7ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 43.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 36.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $204,000,  Roadway Improvement Cost: $20,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 297981,  Location: 070291302 (Lat: 40.859736,  Lng: -94.147681),  Route carried "on" structure: County highway ,  Year Built: 1994,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 15 (year 2016),  Average Future Daily Traffic: 15 (year 2039),  Design Load: HS 20,  Features Intersected: LOTTS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 23.374,  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: 11.9m (39.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 9.9m (32.5ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 63.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 37.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: December 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: 29809,  Location: 070292401 (Lat: 40.854539,  Lng: -94.136481),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 5.46m (17.91ft),  Average Daily Traffic: 340 (year 2016),  Truck Traffic: 14%,  Average Future Daily Traffic: 340 (year 2039),  Design Load: HS 20,  Features Intersected: E FORK GRAND RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.213,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 70.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 42.5 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: Equal to present desirable criteria,  Length Of Structure Improvement: 17.90m (58.73ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: December 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: 2981,  Location: 070292501 (Lat: 40.840108,  Lng: -94.137156),  Route carried "on" structure: County highway ,  Year Built: 1936,  Status: Posted for load,  Structure Length: 3.93m (12.89ft),  Average Daily Traffic: 5 (year 2016),  Average Future Daily Traffic: 5 (year 2041),  Features Intersected: E FK GRAND RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 22.219,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.1m (43.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.6m (21.7ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 28.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 15.80m (51.84ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $329,000,  Roadway Improvement Cost: $33,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 29821,  Location: 070293601 (Lat: 40.825761,  Lng: -94.136625),  Route carried "on" structure: County highway ,  Year Built: 1957,  Status: Posted for load,  Structure Length: 3.87m (12.70ft),  Average Daily Traffic: 30 (year 2016),  Average Future Daily Traffic: 30 (year 2041),  Design Load: H 15,  Features Intersected: E FORK GRAND RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 22.231,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 25.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: 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: 15.50m (50.85ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $402,000,  Roadway Improvement Cost: $40,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 298221,  Location: 070293504 (Lat: 40.820158,  Lng: -94.147636),  Route carried "on" structure: County highway ,  Year Built: 1988,  Status: Posted for load,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 20 (year 2016),  Average Future Daily Traffic: 20 (year 2041),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.956,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 13.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 10.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $83,000,  Roadway Improvement Cost: $8,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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