US Bridges

Lake ST over Small Stream

Fair

Cerro Gordo County, Iowa · 096221608 · Structure no. 000000000011495

Built
1900
125 years old
Condition
Fair
inspected April 2023
Type
Culvert
Steel
Length
27 ft
1 main span
Daily traffic
1,290
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lake ST over Small Stream is a steel culvert carrying Lake ST over Small Stream in Cerro Gordo County, Iowa. It was built in 1900, so it is 125 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 1,290 vehicles a day, projected to reach 1,290 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLake ST
CrossesSmall Stream
Location096221608
RouteCity Street 0
CountyCerro Gordo County
StateIowa
Coordinates43.13131, -93.44188
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Culvert5 FairAll 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating26.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,290 (2021)
Projected traffic1,290 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lake ST over Small Stream built?

It was built in 1900, making it 125 years old in 2025.

What condition is Lake 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 April 2023.

How much traffic does Lake ST over Small Stream carry?

About 1,290 vehicles per day (2021 count).

How long is Lake ST over Small Stream?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m).

Who owns Lake ST over Small Stream?

It is owned by the City or Municipal Highway Agency.