US Bridges

Ia 175 over Skillet Creek

Good

Webster County, Iowa · 1.3 MI E of E JCT US 169 · Structure no. 000000000052390

Built
1966
59 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,800
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 175 over Skillet Creek is a concrete continuous culvert carrying Ia 175 over Skillet Creek in Webster County, Iowa. It was built in 1966, so it is 59 years old, older 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 1,800 vehicles a day, roughly 5% of them trucks, projected to reach 1,800 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesIa 175
CrossesSkillet Creek
Location1.3 MI E of E JCT US 169
RouteState Highway 175
StateIowa
Coordinates42.26793, -94.0805
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2022)
Projected traffic1,800 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 175 over Skillet Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is Ia 175 over Skillet Creek 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 April 2023.

How much traffic does Ia 175 over Skillet Creek carry?

About 1,800 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Ia 175 over Skillet Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 175 over Skillet Creek?

It is owned by the State Highway Agency.