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Nearby Bridges in NBI 2021: 2


15TH ST over BUTLER CREEK (Route: 0)
Num:80x
Posted for load [P]
Built: 1907, Reconstructed: 1938
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 23.5 m = 77.1 ft
Main Spans: 3 at 5.8 m = 19.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.6 m = 24.9 ft (2 Lanes) and Out-To-Out: 8.5 m = 27.9 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00035]: Dallas County [049], Iowa [19]
Owned by City or Municipal Highway Agency [04], DOT District: 0
79273000
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design:
Operating: 21 metric ton = 23.1 tons (Load Factor(LF) [1])
Inventory: 16.1 metric ton = 17.7 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: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: September 2020 [0920] 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: 1090 (2016) and Trucks: 0%
Future ADT: 1090 (In 2040 )
US 169 over N RACCOON RIVER OVERFLOW (Route: 169)
Num:21891x
Open: no restriction [A]
Built: 1994, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 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: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 57.3 m = 188.0 ft
Main Spans: 3 at 21 m = 68.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.2 m = 43.3 ft for a 14.6 m = 47.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00035]: Dallas County [049], Iowa [19]
Owned by State Highway Agency [01], DOT District: 4
0.6 mi. N of Jct. US 6
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 81.8 metric ton = 90.0 tons (Load Factor(LF) [1])
Inventory: 49.1 metric ton = 54.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 4850 (2019) and Trucks: 8%
Future ADT: 4850 (In 2039 )

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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