US 30 over Scatter Creek

Fair

Crawford County, Iowa · 0.2 Mi. E of S.R. M14 · Structure no. 000000000021251

Built: 1925; 100 years old, rebuilt 1977
Condition: Fair; inspected January 2023
Type: Culvert; Concrete Continuous
Length: 24 ft; 2 main spans
Daily traffic: 3,020; 2022 count
Owner: State; State Highway Agency

About this bridge

US 30 over Scatter Creek is a concrete continuous culvert carrying US 30 over Scatter Creek in Crawford County, Iowa. It was built in 1925 and reconstructed in 1977, so it is 100 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 3,020 vehicles a day, roughly 25% of them trucks, projected to reach 3,020 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesUS 30

CrossesScatter Creek

Location0.2 Mi. E of S.R. M14

RouteU.S. Route 30

CountyCrawford County

StateIowa

Coordinates41.93263, -95.48885

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
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionJanuary 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating34 US tons

Inventory rating25 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadH 20

Structure length24 ft (7.3 m)

Longest span11 ft (3.4 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,020 (2022)

Projected traffic3,020 by 2042

Trucks25%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.7 mi (6 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 Scatter Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1977.

What condition is US 30 over Scatter 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 January 2023.

How much traffic does US 30 over Scatter Creek carry?

About 3,020 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is US 30 over Scatter Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns US 30 over Scatter Creek?

It is owned by the State Highway Agency.