US Bridges

Lac-Keo ST Park over Stream

Fair

Van Buren County, Iowa · 0.8 Mi. S of Jct. Ia 1 · Structure no. 000000000699390

Built
1920
105 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
—
2022 count
Owner
State
State Highway Agency

About this bridge

Lac-Keo ST Park over Stream is a concrete culvert carrying Lac-Keo ST Park over Stream in Van Buren County, Iowa. It was built in 1920, so it is 105 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.

No traffic count is recorded. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesLac-Keo ST Park
CrossesStream
Location0.8 Mi. S of Jct. Ia 1
RouteState Lands Road 0
CountyVan Buren County
StateIowa
Coordinates40.71696, -91.96634
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22.2 US tons
Inventory rating22.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lac-Keo ST Park over Stream built?

It was built in 1920, making it 105 years old in 2025.

What condition is Lac-Keo ST Park over 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 May 2023.

How much traffic does Lac-Keo ST Park over Stream carry?

No traffic count is recorded for this structure.

How long is Lac-Keo ST Park over Stream?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 29 ft wide.

Who owns Lac-Keo ST Park over Stream?

It is owned by the State Highway Agency.