US Bridges

Cerro Gordo ST over Small Stream

Fair

Cerro Gordo County, Iowa · 0.1 MI East of I-35 · Structure no. 000000000366145

Built
1972
53 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
34
2022 count
Owner
County
County Highway Agency

About this bridge

Cerro Gordo ST over Small Stream is a concrete continuous culvert carrying Cerro Gordo ST over Small Stream in Cerro Gordo County, Iowa. It was built in 1972, so it is 53 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 2044. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCerro Gordo ST
CrossesSmall Stream
Location0.1 MI East of I-35
RouteCounty Highway 0
CountyCerro Gordo County
StateIowa
Coordinates42.90789, -93.34959
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.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2022)
Projected traffic34 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cerro Gordo ST over Small Stream built?

It was built in 1972, making it 53 years old in 2025.

What condition is Cerro Gordo ST over Small 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 July 2024.

How much traffic does Cerro Gordo ST over Small Stream carry?

About 34 vehicles per day (2022 count).

How long is Cerro Gordo ST over Small Stream?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 28 ft wide.

Who owns Cerro Gordo ST over Small Stream?

It is owned by the County Highway Agency.