172nd Ave over Creek

Fair

Scott County, Iowa · 080E32506 · Structure no. 000000000303530

Built: 1958; 67 years old
Condition: Fair; inspected April 2023
Type: Culvert; Concrete Continuous
Length: 20 ft; 2 main spans
Daily traffic: 34; 2022 count
Owner: County; County Highway Agency

About this bridge

172nd Ave over Creek is a concrete continuous culvert carrying 172nd Ave over Creek in Scott County, Iowa. It was built in 1958, so it is 67 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 5 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 34 vehicles a day, projected to reach 34 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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Carries172nd Ave

CrossesCreek

Location080E32506

RouteCounty Highway 0

CountyScott County

StateIowa

Coordinates41.7059, -90.56442

Functional classRural Local

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	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.

Last inspectionApril 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is

Operating rating84.7 US tons

Inventory rating50.7 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadH 20

Structure length20 ft (6.1 m)

Longest span10 ft (3 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2022)

Projected traffic34 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed98.8 mi (159 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—

NavigationNo navigation control on waterway

Frequently asked questions

When was 172nd Ave over Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is 172nd Ave over 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 172nd Ave over Creek carry?

About 34 vehicles per day (2022 count).

How long is 172nd Ave over Creek?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns 172nd Ave over Creek?

It is owned by the County Highway Agency.