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Nearby Bridges in NBI 2021: 2


FM over IOWA RIVER (Route: 0)
Num:358720x
Open: no restriction [A]
Built: 1965, 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 continuous [4] 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: 45.7 m = 149.9 ft
Main Spans: 3 at 17.7 m = 58.1 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.1 m = 29.9 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Wright County [197], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
93231901
Condition
Deck: Poor [4]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 18 / H 20 [4]
Operating: 39 metric ton = 42.9 tons (Allowable Stress(AS) [2])
Inventory: 26.3 metric ton = 28.9 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] 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: 0.2 km = 0.1 mi
Traffic
ADT: 980 (2019) and Trucks: 9%
Future ADT: 980 (In 2039 )
US 69 over IOWA RIVER (Route: 69)
Num:54330x
Open: no restriction [A]
Built: 1927, Reconstructed: 1956
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 33.5 m = 109.9 ft
Main Spans: 3 at 12.2 m = 40.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.2 m = 30.2 ft (2 Lanes) and Out-To-Out: 10.5 m = 34.5 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Wright County [197], Iowa [19]
Owned by State Highway Agency [01], DOT District: 2
At S Jct. of SR C20
Condition
Deck: Poor [4]
Superstructure: Satisfactory [6]
Substructure: Poor [4]
Loading
Design: M 13.5 / H 15 [2]
Operating: 33.1 metric ton = 36.4 tons (Load Factor(LF) [1])
Inventory: 20 metric ton = 22.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
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: February 2021 [0221] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 2940 (2019) and Trucks: 14%
Future ADT: 2940 (In 2041 )

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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