US Bridges

Fm-F Ave. over W Fork Little Sioux Rvr

PoorPosted for load

Cherokee County, Iowa · 092422402 · Structure no. 000000000109340

Built
1924
101 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

Fm-F Ave. over W Fork Little Sioux Rvr is a steel stringer/multi-beam or girder carrying Fm-F Ave. over W Fork Little Sioux Rvr in Cherokee County, Iowa. It was built in 1924, so it is 101 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 3 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 26 vehicles a day, projected to reach 26 by 2043. The structure is 35 ft (10.7 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFm-F Ave.
CrossesW Fork Little Sioux Rvr
Location092422402
RouteCounty Highway 0
StateIowa
Coordinates42.77424, -95.7606
Functional classRural Minor Collector

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating20.8 US tons
Inventory rating9.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2043
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$405,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fm-F Ave. over W Fork Little Sioux Rvr built?

It was built in 1924, making it 101 years old in 2025.

What condition is Fm-F Ave. over W Fork Little Sioux Rvr 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 August 2023.

How much traffic does Fm-F Ave. over W Fork Little Sioux Rvr carry?

About 26 vehicles per day (2022 count).

How long is Fm-F Ave. over W Fork Little Sioux Rvr?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 18 ft wide.

Who owns Fm-F Ave. over W Fork Little Sioux Rvr?

It is owned by the County Highway Agency.