US Bridges

F Avenue over West Tarkio Creek

PoorPosted for load

Page County, Iowa · 069383002 · Structure no. 000000000267150

Built
1977
48 years old
Condition
Poor
inspected November 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
123 ft
3 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

F Avenue over West Tarkio Creek is a steel stringer/multi-beam or girder carrying F Avenue over West Tarkio Creek in Page County, Iowa. It was built in 1977, so it is 48 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2042. The structure is 123 ft (37.5 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesF Avenue
CrossesWest Tarkio Creek
Location069383002
RouteCounty Highway 0
StateIowa
Coordinates40.75408, -95.27082
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.3 US tons
Inventory rating18.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans3
Design loadUnknown
Structure length123 ft (37.5 m)
Longest span41 ft (12.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was F Avenue over West Tarkio Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is F Avenue over West Tarkio Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2022.

How much traffic does F Avenue over West Tarkio Creek carry?

About 20 vehicles per day (2022 count).

How long is F Avenue over West Tarkio Creek?

The structure is 123 ft (37.5 m) long with a longest span of 41 ft (12.5 m) and a deck 24 ft wide.

Who owns F Avenue over West Tarkio Creek?

It is owned by the County Highway Agency.