US Bridges

350th ST over Overflow Meadow Creek

Fair

Clay County, Iowa · 096361501 · Structure no. 000000000116661

Built
1976
49 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
63 ft
3 main spans
Daily traffic
878
2022 count
Owner
County
County Highway Agency

About this bridge

350th ST over Overflow Meadow Creek is a concrete continuous slab carrying 350th ST over Overflow Meadow Creek in Clay County, Iowa. It was built in 1976, so it is 49 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 878 vehicles a day, roughly 10% of them trucks, projected to reach 878 by 2043. The structure is 63 ft (19.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries350th ST
CrossesOverflow Meadow Creek
Location096361501
RouteCounty Highway 0
StateIowa
Coordinates43.14215, -95.079
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.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length63 ft (19.2 m)
Longest span23 ft (7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic878 (2022)
Projected traffic878 by 2043
Trucks10%
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

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 350th ST over Overflow Meadow Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is 350th ST over Overflow Meadow 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 March 2023.

How much traffic does 350th ST over Overflow Meadow Creek carry?

About 878 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 350th ST over Overflow Meadow Creek?

The structure is 63 ft (19.2 m) long with a longest span of 23 ft (7 m) and a deck 32 ft wide.

Who owns 350th ST over Overflow Meadow Creek?

It is owned by the County Highway Agency.