US Bridges

US 218 over Spring Creek

Fair

Henry County, Iowa · 2.7 Mi. N of N Jct. US 34 · Structure no. 000000000028530

Built
1967
58 years old, rebuilt 2000
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
13,300
2022 count
Owner
State
State Highway Agency

About this bridge

US 218 over Spring Creek is a concrete continuous culvert carrying US 218 over Spring Creek in Henry County, Iowa. It was built in 1967 and reconstructed in 2000, so it is 58 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 13,300 vehicles a day, roughly 23% of them trucks, projected to reach 13,300 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 218
CrossesSpring Creek
Location2.7 Mi. N of N Jct. US 34
RouteU.S. Route 218
StateIowa
Coordinates41.02761, -91.54854
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99.8 US tons
Inventory rating70.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 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 traffic13,300 (2022)
Projected traffic13,300 by 2043
Trucks23%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 218 over Spring Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2000.

What condition is US 218 over Spring 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 April 2023.

How much traffic does US 218 over Spring Creek carry?

About 13,300 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is US 218 over Spring Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns US 218 over Spring Creek?

It is owned by the State Highway Agency.