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Nearby Bridges in NBI 2021: 1


X 99 over IOWA RIVER (Route: 0)
Num:34171x
Open: no restriction [A]
Built: 2014, 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): 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: 353.3 m = 1159.2 ft
Main Spans: 8 at 45.7 m = 149.9 ft
Approach Spans: 0
Skew: 10
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 15.9 m = 52.2 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 [00000]: Louisa County [115], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
73022602
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: HL93 [A]
Operating: 42.1 metric ton = 46.3 tons (Unknown [F])
Inventory: 32.4 metric ton = 35.6 tons (Unknown [F])
Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Equal to present desirable criteria [8]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 3.2 km = 2.0 mi
Traffic
ADT: 670 (2018) and Trucks: 25%
Future ADT: 670 (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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