US Bridges

Ia 15 over Black Cat Creek

Good

Kossuth County, Iowa · 2.9 Mi. S of SR A42 · Structure no. 000000000033031

Built
2014
11 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
680
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 15 over Black Cat Creek is a concrete culvert carrying Ia 15 over Black Cat Creek in Kossuth County, Iowa. It was built in 2014, so it is 11 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 680 vehicles a day, roughly 26% of them trucks, projected to reach 680 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIa 15
CrossesBlack Cat Creek
Location2.9 Mi. S of SR A42
RouteState Highway 15
StateIowa
Coordinates43.25668, -94.42355
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating56.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
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 traffic680 (2022)
Projected traffic680 by 2043
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 15 over Black Cat Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Ia 15 over Black Cat 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 August 2023.

How much traffic does Ia 15 over Black Cat Creek carry?

About 680 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is Ia 15 over Black Cat Creek?

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

Who owns Ia 15 over Black Cat Creek?

It is owned by the State Highway Agency.