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Nearby Bridges in NBI 2021: 3


IRR-LOCAL over IOWA RIVER (Route: 0)
Num:318400x
Bridge closed to all traffic [K]
Built: 1938, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 100.9 m = 331.1 ft
Main Spans: 1 at 48.8 m = 160.1 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 5.7 m = 18.7 ft (2 Lanes) and Out-To-Out: 6 m = 19.7 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 3.35 m = 11.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Tama County [171], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
83162204
Condition
Deck:
Superstructure:
Substructure:
Loading
Design: M 13.5 / H 15 [2]
Operating: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Inventory: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural:
Deck Geometry:
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: December 2014 [1214] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 220 (2017) and Trucks: 0%
Future ADT: 220 (In 2034 )
IRR-LOCAL over IOWA RIVER OVERFLOW (Route: 0)
Num:318390x
Bridge closed to all traffic [K]
Built: 1953, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 47.9 m = 157.2 ft
Main Spans: 3 at 15.9 m = 52.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.1 m = 20.0 ft (2 Lanes) and Out-To-Out: 6.7 m = 22.0 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Tama County [171], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
83162204
Condition
Deck:
Superstructure:
Substructure:
Loading
Design: M 13.5 / H 15 [2]
Operating: 0 metric ton = 0.0 tons ()
Inventory: 0 metric ton = 0.0 tons ()
Appraisal
Structural:
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: September 2015 [0915] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 220 (2017) and Trucks: 0%
Future ADT: 220 (In 2035 )
IRR LOCAL over IOWA RIVER OVERFLOW (Route: 0)
Num:318375x
Bridge closed to all traffic [K]
Built: 1947, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 51.5 m = 169.0 ft
Main Spans: 4 at 12.8 m = 42.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5.4 m = 17.7 ft (2 Lanes) and Out-To-Out: 5.9 m = 19.4 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Tama County [171], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
83161504
Condition
Deck:
Superstructure:
Substructure:
Loading
Design:
Operating: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Inventory: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural:
Deck Geometry:
Road Alignment: Better than present minimum criteria [7]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: September 2015 [0915] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 220 (2017) and Trucks: 0%
Future ADT: 220 (In 2035 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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