US Bridges

FM 430th ST over Elk Creek

Good

Clay County, Iowa · 095353001 · Structure no. 000000000116110

Built
2004
21 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
240
2022 count
Owner
County
County Highway Agency

About this bridge

FM 430th ST over Elk Creek is a concrete culvert carrying FM 430th ST over Elk Creek in Clay County, Iowa. It was built in 2004, so it is 21 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 240 vehicles a day, projected to reach 240 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 430th ST
CrossesElk Creek
Location095353001
RouteCounty Highway 0
StateIowa
Coordinates43.02461, -95.01512
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating33.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2022)
Projected traffic240 by 2043
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 FM 430th ST over Elk Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is FM 430th ST over Elk Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does FM 430th ST over Elk Creek carry?

About 240 vehicles per day (2022 count).

How long is FM 430th ST over Elk Creek?

The structure is 31 ft (9.4 m) long with a longest span of 12 ft (3.7 m).

Who owns FM 430th ST over Elk Creek?

It is owned by the County Highway Agency.