S60 235th ST over Small Natural Stream

Fair

Wayne County, Iowa · 068201412 · Structure no. 000000000052010

Built: 1957; 68 years old
Condition: Fair; inspected October 2022
Type: Culvert; Concrete Continuous
Length: 22 ft; 2 main spans
Daily traffic: 980; 2022 count
Owner: County; County Highway Agency

About this bridge

S60 235th ST over Small Natural Stream is a concrete continuous culvert carrying S60 235th ST over Small Natural Stream in Wayne County, Iowa. It was built in 1957, so it is 68 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 980 vehicles a day, projected to reach 980 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesS60 235th ST

CrossesSmall Natural Stream

Location068201412

RouteCounty Highway 0

CountyWayne County

StateIowa

Coordinates40.69454, -93.12116

Functional classRural Major Collector

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	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionOctober 2022

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating36 US tons

Inventory rating27 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadH 20

Structure length22 ft (6.7 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 traffic980 (2022)

Projected traffic980 by 2042

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed24.9 mi (40 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was S60 235th ST over Small Natural Stream built?

It was built in 1957, making it 68 years old in 2025.

What condition is S60 235th ST over Small Natural Stream 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 October 2022.

How much traffic does S60 235th ST over Small Natural Stream carry?

About 980 vehicles per day (2022 count).

How long is S60 235th ST over Small Natural Stream?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns S60 235th ST over Small Natural Stream?

It is owned by the County Highway Agency.