Ia 140 over Clear Creek

Fair

Plymouth County, Iowa · 2.8 Mi. S of Ia 3 · Structure no. 000000000274010

Built: 1964; 61 years old
Condition: Fair; inspected April 2023
Type: Slab; Concrete
Length: 32 ft; 1 main span
Daily traffic: 1,130; 2022 count
Owner: State; State Highway Agency

About this bridge

Ia 140 over Clear Creek is a concrete slab carrying Ia 140 over Clear Creek in Plymouth County, Iowa. It was built in 1964, so it is 61 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 1,130 vehicles a day, roughly 16% of them trucks, projected to reach 1,130 by 2042. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesIa 140

CrossesClear Creek

Location2.8 Mi. S of Ia 3

RouteState Highway 140

CountyPlymouth County

StateIowa

Coordinates42.76759, -95.95794

Functional classRural Minor Arterial

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	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionApril 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourCountermeasures installed to correct a previously existing problem

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating68 US tons

Inventory rating40.8 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, cast-in-place

Main spans1

Design loadH 20

Structure length32 ft (9.8 m)

Longest span30 ft (9.1 m)

Deck width30 ft (9.1 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,130 (2022)

Projected traffic1,130 by 2042

Trucks16%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed8.1 mi (13 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 140 over Clear Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ia 140 over Clear 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 April 2023.

How much traffic does Ia 140 over Clear Creek carry?

About 1,130 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Ia 140 over Clear Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns Ia 140 over Clear Creek?

It is owned by the State Highway Agency.