IA 9 over ROCK RIVER (Route: 9)
Num:34645x
Open: no restriction [A]
Built: 1974, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]

Bridge Dimensions
Length: 107.6 m = 353.0 ft
Main Spans: 4 at 34.7 m = 113.9 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 17.1 m = 56.1 ft (4 Lanes) and Out-To-Out: 21.5 m = 70.5 ft for a 16.2 m = 53.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [06542]: Lyon County [119], Iowa [19]
Owned by State Highway Agency [01], DOT District: 3
0.5 mi. E of E Jct. US 75

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 61 metric ton = 67.1 tons (Load Factor(LF) [1])
Inventory: 36.6 metric ton = 40.3 tons (Load Factor(LF) [1])

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 assessed or calculated scour condition. [5]
Inspections
Date: April 1999 [499] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 4030 (2019) and Trucks: 12%
Future ADT: 4030 (In 2039 )

N 2ND AVE over SMALL STREAM (Route: 0)
Num:502520x
Posted for load [P]
Built: 0, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Culvert [19]
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: 18.3 m = 60.0 ft
Main Spans: 6 at 2.7 m = 8.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.8 m = 22.3 ft (2 Lanes) and Out-To-Out: 6.8 m = 22.3 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Unknown [06542]: Lyon County [119], Iowa [19]
Owned by City or Municipal Highway Agency [04], DOT District: 0
100453304

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design:
Operating: 9.1 metric ton = 10.0 tons ()
Inventory: 4.5 metric ton = 5.0 tons ()

Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
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 2020 [0720] and Frequency: 12

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: 430 (2000) and Trucks: 0%
Future ADT: 430 (In 2040 )