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Nearby Bridges in NBI 2021: 1


WARREN ST over MIDDLE RIVER (Route: 0)
Num:701x
Open: no restriction [A]
Built: 1993, 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): 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: 58.5 m = 191.9 ft
Main Spans: 3 at 21.6 m = 70.9 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 7.5 m = 24.6 ft (2 Lanes) and Out-To-Out: 8.3 m = 27.2 ft for a 6.4 m = 21.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Afton [00595]: Warren County [181], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
76253001
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 77.2 metric ton = 84.9 tons (Allowable Stress(AS) [2])
Inventory: 37.7 metric ton = 41.5 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: October 2020 [1020] and Frequency: 48
Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 160 (2016) and Trucks: 0%
Future ADT: 160 (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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