US Bridges

FM 350th ST over Big Meadow Creek

Fair

Clay County, Iowa · 096361501 · Structure no. 000000000116650

Built
1963
62 years old, rebuilt 2009
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
878
2022 count
Owner
County
County Highway Agency

About this bridge

FM 350th ST over Big Meadow Creek is a concrete continuous slab carrying FM 350th ST over Big Meadow Creek in Clay County, Iowa. It was built in 1963 and reconstructed in 2009, so it is 62 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 878 vehicles a day, roughly 10% of them trucks, projected to reach 878 by 2043. The structure is 128 ft (39 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM 350th ST
CrossesBig Meadow Creek
Location096361501
RouteCounty Highway 0
StateIowa
Coordinates43.14177, -95.08781
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 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 FM 350th ST over Big Meadow Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2009.

What condition is FM 350th ST over Big 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 FM 350th ST over Big Meadow Creek carry?

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

How long is FM 350th ST over Big Meadow Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.

Who owns FM 350th ST over Big Meadow Creek?

It is owned by the County Highway Agency.