30TH ST over NICHOLS CREEK (Route: 0)
Num:183551x
Open: no restriction [A]
Built: 2020, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 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: Gravel [8]

Bridge Dimensions
Length: 21.5 m = 70.5 ft
Main Spans: 1 at 20.9 m = 68.6 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.5 m = 24.6 ft (2 Lanes) and Out-To-Out: 7.6 m = 24.9 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Howard County [089], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
100112401

Condition
Deck: Excellent [9]
Superstructure: Excellent [9]
Substructure: Excellent [9]
Loading
Design:
Operating: 54.7 metric ton = 60.2 tons (Load Factor(LF) [1])
Inventory: 32.7 metric ton = 36.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Superior to present desirable criteria [9]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: December 2020 [1220] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 60 (2013) and Trucks: 0%
Future ADT: 60 (In 2040 )

LOCAL over BIGALK CREEK (Route: 0)
Num:349841x
Open: no restriction [A]
Built: 1987, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 31.4 m = 103.0 ft
Main Spans: 3 at 11.9 m = 39.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.6 m = 24.9 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]: Winneshiek County [191], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
100101804

Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 59 metric ton = 64.9 tons (Allowable Stress(AS) [2])
Inventory: 33.3 metric ton = 36.6 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: March 2020 [0320] and Frequency: 48

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 25 (2017) and Trucks: 0%
Future ADT: 25 (In 2040 )

30TH ST over NICHOLS CREEK (Route: 0)
Num:183541x
Open: no restriction [A]
Built: 2020, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 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: Gravel [8]

Bridge Dimensions
Length: 21.3 m = 69.9 ft
Main Spans: 1 at 20.7 m = 67.9 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 7.4 m = 24.3 ft (2 Lanes) and Out-To-Out: 7.6 m = 24.9 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Howard County [089], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
100112401

Condition
Deck: Excellent [9]
Superstructure: Excellent [9]
Substructure: Excellent [9]
Loading
Design:
Operating: 54.7 metric ton = 60.2 tons (Load Factor(LF) [1])
Inventory: 32.7 metric ton = 36.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Superior to present desirable criteria [9]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: December 2020 [1220] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 60 (2013) and Trucks: 0%
Future ADT: 60 (In 2040 )

LOCAL ROAD over UPPER IOWA RIVER (Route: 0)
Num:349850x
Posted for load [P]
Built: 1904, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface:

Bridge Dimensions
Length: 44.8 m = 147.0 ft
Main Spans: 2 at 22.3 m = 73.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.9 m = 16.1 ft (1 Lanes) and Out-To-Out: 5.3 m = 17.4 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Winneshiek County [191], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
100101803

Condition
Deck: Fair [5]
Superstructure: Serious [3]
Substructure: Serious [3]
Loading
Design:
Operating: 9.8 metric ton = 10.8 tons (Allowable Stress(AS) [2])
Inventory: 6.7 metric ton = 7.4 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Meets minimum tolerable limits to be left in place as is [4] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: March 2020 [0320] and Frequency: 12

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 20 (2017) and Trucks: 0%
Future ADT: 20 (In 2040 )