US Bridges

160th Street over W Tarkio River

Fair

Page County, Iowa · 069380301 · Structure no. 000000000266901

Built
2002
23 years old
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
3 main spans
Daily traffic
29
2022 count
Owner
County
County Highway Agency

About this bridge

160th Street over W Tarkio River is a steel stringer/multi-beam or girder carrying 160th Street over W Tarkio River in Page County, Iowa. It was built in 2002, so it is 23 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 29 vehicles a day, projected to reach 29 by 2042. The structure is 74 ft (22.6 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries160th Street
CrossesW Tarkio River
Location069380301
RouteCounty Highway 0
StateIowa
Coordinates40.81422, -95.20939
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.8 US tons
Inventory rating30.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans3
Design loadUnknown
Structure length74 ft (22.6 m)
Longest span39 ft (11.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)
Projected traffic29 by 2042
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 160th Street over W Tarkio River built?

It was built in 2002, making it 23 years old in 2025.

What condition is 160th Street over W Tarkio River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2022.

How much traffic does 160th Street over W Tarkio River carry?

About 29 vehicles per day (2022 count).

How long is 160th Street over W Tarkio River?

The structure is 74 ft (22.6 m) long with a longest span of 39 ft (11.9 m) and a deck 24 ft wide.

Who owns 160th Street over W Tarkio River?

It is owned by the County Highway Agency.