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Nearby Bridges in NBI 2021: 4


SE 16TH ST over SKUNK RIVER (Route: 0)
Num:314860x
Open: no restriction [A]
Built: 2007, 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: 84.4 m = 276.9 ft
Main Spans: 3 at 34.1 m = 111.9 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 15.9 m = 52.2 ft for a 19.2 m = 63.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00155]: Story County [169], Iowa [19]
Owned by City or Municipal Highway Agency [04], DOT District: 0
A11700795
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: MS 18 / HS 20 [5]
Operating: 79.1 metric ton = 87.0 tons (Load Factor(LF) [1])
Inventory: 47.3 metric ton = 52.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
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: April 2020 [0420] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 5100 (2019) and Trucks: 0%
Future ADT: 5100 (In 2040 )
WB US 30 over SOUTH SKUNK RIVER (Route: 30)
Num:48740x
Open: no restriction [A]
Built: 1963, 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] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 99.1 m = 325.1 ft
Main Spans: 3 at 38.1 m = 125.0 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 9.2 m = 30.2 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 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 [00155]: Story County [169], Iowa [19]
Owned by State Highway Agency [01], DOT District: 1
1.2 MI. W OF JCT. I-35
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 44.4 metric ton = 48.8 tons (Allowable Stress(AS) [2])
Inventory: 23.6 metric ton = 26.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 16000 (2019) and Trucks: 7%
Future ADT: 16000 (In 2040 )
EB US 30 over SOUTH SKUNK RIVER (Route: 30)
Num:48730x
Open: no restriction [A]
Built: 1963, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 99.1 m = 325.1 ft
Main Spans: 3 at 38.1 m = 125.0 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 9.2 m = 30.2 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 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 [00155]: Story County [169], Iowa [19]
Owned by State Highway Agency [01], DOT District: 1
1.2 MI. W OF JCT. I-35
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 36 metric ton = 39.6 tons (Load Factor(LF) [1])
Inventory: 21.6 metric ton = 23.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 16000 (2019) and Trucks: 7%
Future ADT: 16000 (In 2040 )
S DAYTON AVE over US 30 (Route: 0)
Num:601300x
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: 0.5 Miles (0.8 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: 62.5 m = 205.1 ft
Main Spans: 2 at 30.8 m = 101.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.4 m = 44.0 ft (2 Lanes) and Out-To-Out: 14.4 m = 47.2 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 [00155]: Story County [169], Iowa [19]
Owned by State Highway Agency [01], DOT District: 1
0.8 MILE WEST OF I-35
Condition
Deck: Excellent [9]
Superstructure: Satisfactory [6]
Substructure: Very Good [8]
Loading
Design: MS 18 / HS 20 [5]
Operating: 86.7 metric ton = 95.4 tons (Load Factor(LF) [1])
Inventory: 40.8 metric ton = 44.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 5400 (2019) and Trucks: 0%
Future ADT: 5400 (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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