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Nearby Bridges in NBI 2021: 4


EB I-80 over IOWA 149 (Route: 80)
Num:29850x
Open: no restriction [A]
Built: 1963, 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): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 67.7 m = 222.1 ft
Main Spans: 4 at 19.8 m = 65.0 ft
Approach Spans: 0
Skew: 2
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [08427]: Iowa County [095], Iowa [19]
Owned by State Highway Agency [01], DOT District: 6
AT JCT. Ia. 149
Condition
Deck: Poor [4]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 74.2 metric ton = 81.6 tons (Load Factor(LF) [1])
Inventory: 30.4 metric ton = 33.4 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 2020 [1120] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 14300 (2019) and Trucks: 28%
Future ADT: 14300 (In 2040 )
IA 149 over DRAINAGE DITCH (Route: 149)
Num:29531x
Open: no restriction [A]
Built: 1962, 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): Concrete continuous [2] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 6.4 m = 21.0 ft
Main Spans: 2 at 3 m = 9.8 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 0 m = 0.0 ft (4 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 24.4 m = 80.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [08427]: Iowa County [095], Iowa [19]
Owned by State Highway Agency [01], DOT District: 6
0.1 MI. S OF JCT I-80
Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design: MS 18 / HS 20 [5]
Operating: 44.3 metric ton = 48.7 tons (Load Factor(LF) [1])
Inventory: 26.5 metric ton = 29.2 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: N/A [N]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: March 2020 [0320] and Frequency: 21
Future Work
Work Needed:
Bridge Detour: 1.6 km = 1.0 mi
Traffic
ADT: 7000 (2019) and Trucks: 4%
Future ADT: 7000 (In 2040 )
WB I-80 over IOWA 149 (Route: 80)
Num:29860x
Open: no restriction [A]
Built: 1963, 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): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 67.7 m = 222.1 ft
Main Spans: 4 at 19.8 m = 65.0 ft
Approach Spans: 0
Skew: 2
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [08427]: Iowa County [095], Iowa [19]
Owned by State Highway Agency [01], DOT District: 6
AT JCT OF I-80 & IA 149
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 75.9 metric ton = 83.5 tons (Load Factor(LF) [1])
Inventory: 45.5 metric ton = 50.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 14550 (2019) and Trucks: 28%
Future ADT: 14550 (In 2040 )
I-80 over STREAM (Route: 80)
Num:29840x
Open: no restriction [A]
Built: 1962, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 7.3 m = 24.0 ft
Main Spans: 2 at 3 m = 9.8 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 0 m = 0.0 ft (4 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 24.4 m = 80.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [08427]: Iowa County [095], Iowa [19]
Owned by State Highway Agency [01], DOT District: 6
0.4 MILES W OF JCT IA 149
Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design: MS 18 / HS 20 [5]
Operating: 90.5 metric ton = 99.6 tons (Load Factor(LF) [1])
Inventory: 55.1 metric ton = 60.6 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: N/A [N]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 29900 (2019) and Trucks: 27%
Future ADT: 29900 (In 2040 )

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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