US Bridges

160th ST over Creek

Good

Audubon County, Iowa · 0.5 M. E. of Nighhawk Ave · Structure no. 000000000068001

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

160th ST over Creek is a steel stringer/multi-beam or girder carrying 160th ST over Creek in Audubon 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 15 vehicles a day, roughly 7% of them trucks, projected to reach 15 by 2043. The structure is 29 ft (8.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries160th ST
CrossesCreek
Location0.5 M. E. of Nighhawk Ave
RouteCounty Highway 0
StateIowa
Coordinates41.77686, -94.83053
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating33.1 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length29 ft (8.7 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic15 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 160th ST over Creek built?

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

What condition is 160th ST over 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 June 2023.

How much traffic does 160th ST over Creek carry?

About 15 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is 160th ST over Creek?

The structure is 29 ft (8.7 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns 160th ST over Creek?

It is owned by the County Highway Agency.