270TH AVE over MONTGOMERY CREEK (Route: 0)
Num:115851x
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: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
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: 22.9 m = 75.1 ft
Main Spans: 3 at 8.8 m = 28.9 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 9.3 m = 30.5 ft (2 Lanes) and Out-To-Out: 10.1 m = 33.1 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Clay County [041], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
94361302

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 69.2 metric ton = 76.1 tons (Allowable Stress(AS) [2])
Inventory: 41.3 metric ton = 45.4 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
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: March 1999 [399] and Frequency: 48

Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 25 (2015) and Trucks: 0%
Future ADT: 25 (In 2039 )

470TH ST over MONTGOMERY CREEK (Route: 0)
Num:115861x
Open: no restriction [A]
Built: 1998, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]

Bridge Dimensions
Length: 9.1 m = 29.9 ft
Main Spans: 1 at 9.1 m = 29.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 9.1 m = 29.9 ft for a 7.6 m = 24.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [00000]: Clay County [041], Iowa [19]
Owned by County Highway Agency [02], DOT District: 0
94361403

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 59.7 metric ton = 65.7 tons (Load Factor(LF) [1])
Inventory: 35.7 metric ton = 39.3 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Better than present minimum criteria [7]
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: March 1999 [399] and Frequency: 48

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 30 (2015) and Trucks: 0%
Future ADT: 30 (In 2039 )