US Bridges

584th Ave over Small Creek

Good

Jackson County, Iowa · 084E63602 · Structure no. 000000000193061

Built
2016
9 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

584th Ave over Small Creek is a steel stringer/multi-beam or girder carrying 584th Ave over Small Creek in Jackson County, Iowa. It was built in 2016, so it is 9 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, projected to reach 30 by 2043. The structure is 34 ft (10.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries584th Ave
CrossesSmall Creek
Location084E63602
RouteCounty Highway 0
StateIowa
Coordinates42.04006, -90.21614
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating59.4 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length34 ft (10.5 m)
Longest span33 ft (10.2 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2021)
Projected traffic30 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 584th Ave over Small Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is 584th Ave over Small Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does 584th Ave over Small Creek carry?

About 30 vehicles per day (2021 count).

How long is 584th Ave over Small Creek?

The structure is 34 ft (10.5 m) long with a longest span of 33 ft (10.2 m) and a deck 26 ft wide.

Who owns 584th Ave over Small Creek?

It is owned by the County Highway Agency.