US Bridges

Ia 141 over Fork Little Sioux River

Fair

Woodbury County, Iowa · 0.3 Mi. W of S.R. K64 · Structure no. 000000000053260

Built
1952
73 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
44 ft
2 main spans
Daily traffic
1,960
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 141 over Fork Little Sioux River is a concrete continuous slab carrying Ia 141 over Fork Little Sioux River in Woodbury County, Iowa. It was built in 1952, so it is 73 years old, older 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 1,960 vehicles a day, roughly 13% of them trucks, projected to reach 1,960 by 2043. The structure is 44 ft (13.4 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesIa 141
CrossesFork Little Sioux River
Location0.3 Mi. W of S.R. K64
RouteState Highway 141
CountyWoodbury County
StateIowa
Coordinates42.22716, -96.10376
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating31.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length44 ft (13.4 m)
Longest span22 ft (6.7 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,960 (2023)
Projected traffic1,960 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 141 over Fork Little Sioux River built?

It was built in 1952, making it 73 years old in 2025.

What condition is Ia 141 over Fork Little Sioux 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 July 2024.

How much traffic does Ia 141 over Fork Little Sioux River carry?

About 1,960 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ia 141 over Fork Little Sioux River?

The structure is 44 ft (13.4 m) long with a longest span of 22 ft (6.7 m) and a deck 35 ft wide.

Who owns Ia 141 over Fork Little Sioux River?

It is owned by the State Highway Agency.