US Bridges

Ia 141 over Smokey Hollow Creek

Fair

Woodbury County, Iowa · 0.2 Mi. E of Jct. Ia 31 · Structure no. 000000000053320

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
1,810
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 141 over Smokey Hollow Creek is a concrete continuous slab carrying Ia 141 over Smokey Hollow Creek in Woodbury County, Iowa. It was built in 1959, so it is 66 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 6 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 1,810 vehicles a day, roughly 11% of them trucks, projected to reach 1,810 by 2043. The structure is 82 ft (25 m) long and 56 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesIa 141
CrossesSmokey Hollow Creek
Location0.2 Mi. E of Jct. Ia 31
RouteState Highway 141
CountyWoodbury County
StateIowa
Coordinates42.22881, -95.92784
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.8 US tons
Inventory rating34.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span31 ft (9.4 m)
Deck width56 ft (17.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,810 (2023)
Projected traffic1,810 by 2043
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Smokey Hollow Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Ia 141 over Smokey Hollow Creek 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 October 2024.

How much traffic does Ia 141 over Smokey Hollow Creek carry?

About 1,810 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ia 141 over Smokey Hollow Creek?

The structure is 82 ft (25 m) long with a longest span of 31 ft (9.4 m) and a deck 56 ft wide.

Who owns Ia 141 over Smokey Hollow Creek?

It is owned by the State Highway Agency.