US Bridges

Old HWY 141 over Fork of Little Sioux

Good

Woodbury County, Iowa · 086450918 · Structure no. 000000000053551

Built
2002
23 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
215 ft
3 main spans
Daily traffic
808
2022 count
Owner
County
County Highway Agency

About this bridge

Old HWY 141 over Fork of Little Sioux is a prestressed concrete stringer/multi-beam or girder carrying Old HWY 141 over Fork of Little Sioux in Woodbury 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 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 808 vehicles a day, roughly 21% of them trucks, projected to reach 808 by 2044. The structure is 215 ft (65.5 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOld HWY 141
CrossesFork of Little Sioux
Location086450918
RouteCounty Highway 0
StateIowa
Coordinates42.27072, -96.07907
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length215 ft (65.5 m)
Longest span112 ft (34.1 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic808 (2022)
Projected traffic808 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 141 over Fork of Little Sioux built?

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

What condition is Old HWY 141 over Fork of Little Sioux 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 July 2024.

How much traffic does Old HWY 141 over Fork of Little Sioux carry?

About 808 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Old HWY 141 over Fork of Little Sioux?

The structure is 215 ft (65.5 m) long with a longest span of 112 ft (34.1 m) and a deck 37 ft wide.

Who owns Old HWY 141 over Fork of Little Sioux?

It is owned by the County Highway Agency.