280th ST over Flood Creek

Good

Floyd County, Iowa · 094162001 · Structure no. 000000000153922

Built: 2011; 14 years old
Condition: Good; inspected April 2024
Type: Slab; Concrete Continuous
Length: 151 ft; 3 main spans
Daily traffic: 39; 2022 count
Owner: County; County Highway Agency

About this bridge

280th ST over Flood Creek is a concrete continuous slab carrying 280th ST over Flood Creek in Floyd County, Iowa. It was built in 2011, so it is 14 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39 vehicles a day, projected to reach 39 by 2044. The structure is 151 ft (46 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries280th ST

CrossesFlood Creek

Location094162001

RouteCounty Highway 0

CountyFloyd County

StateIowa

Coordinates42.95091, -92.77124

Functional classRural Local

Condition and inspection

Good

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

Component	Rating	Meaning
Deck	8 Very Good	No problems noted.
Superstructure	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionApril 2024

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation8: Equal to present desirable criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating59.6 US tons

Inventory rating46.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length151 ft (46 m)

Longest span59 ft (18 m)

Deck width33 ft (10.1 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)

Projected traffic39 by 2044

Trucks0%

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

OwnerCounty Highway Agency

Maintained byCounty Highway Agency

Historic statusNot eligible for the National Register of Historic Places

Work proposedOther structural work, including hydraulic replacements

Estimated improvement cost$30,000 (2024 estimate)

NavigationNo navigation control on waterway

Frequently asked questions

When was 280th ST over Flood Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is 280th ST over Flood 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 2024.

How much traffic does 280th ST over Flood Creek carry?

About 39 vehicles per day (2022 count).

How long is 280th ST over Flood Creek?

The structure is 151 ft (46 m) long with a longest span of 59 ft (18 m) and a deck 33 ft wide.

Who owns 280th ST over Flood Creek?

It is owned by the County Highway Agency.