US 30 over Flasher Creek

Fair

Crawford County, Iowa · 5.6 Mi. N of Ia 37 · Structure no. 000000000021240

Built: 1965; 60 years old
Condition: Fair; inspected May 2023
Type: Slab; Concrete Continuous
Length: 116 ft; 3 main spans
Daily traffic: 3,180; 2022 count
Owner: State; State Highway Agency

About this bridge

US 30 over Flasher Creek is a concrete continuous slab carrying US 30 over Flasher Creek in Crawford County, Iowa. It was built in 1965, so it is 60 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 3,180 vehicles a day, roughly 24% of them trucks, projected to reach 3,180 by 2042. The structure is 116 ft (35.4 m) long and 36 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

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CarriesUS 30

CrossesFlasher Creek

Location5.6 Mi. N of Ia 37

RouteU.S. Route 30

CountyCrawford County

StateIowa

Coordinates41.91706, -95.53283

Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMay 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation6: Equal to present minimum criteria

Deck geometry4: Meets minimum tolerable limits to be left in place as is

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating53.2 US tons

Inventory rating31.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length116 ft (35.4 m)

Longest span45 ft (13.7 m)

Deck width36 ft (11 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,180 (2022)

Projected traffic3,180 by 2042

Trucks24%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed21.1 mi (34 km)

TollOn a free road

National Highway SystemYes

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 US 30 over Flasher Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 30 over Flasher 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 May 2023.

How much traffic does US 30 over Flasher Creek carry?

About 3,180 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is US 30 over Flasher Creek?

The structure is 116 ft (35.4 m) long with a longest span of 45 ft (13.7 m) and a deck 36 ft wide.

Who owns US 30 over Flasher Creek?

It is owned by the State Highway Agency.