US Bridges

US 30 151 & 218 over Creek

Fair

Linn County, Iowa · 0.1 Mi. W of E Jct. 218 · Structure no. 000000000604200

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
28,500
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 151 & 218 over Creek is a concrete continuous culvert carrying US 30 151 & 218 over Creek in Linn County, Iowa. It was built in 1975, so it is 50 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 28,500 vehicles a day, roughly 9% of them trucks, projected to reach 28,500 by 2043. The structure is 27 ft (8.2 m) long.

Location

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CarriesUS 30 151 & 218
CrossesCreek
Location0.1 Mi. W of E Jct. 218
RouteU.S. Route 30
CountyLinn County
StateIowa
Coordinates41.92827, -91.68014
Functional classUrban Other Principal Arterial

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length27 ft (8.2 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 traffic28,500 (2022)
Projected traffic28,500 by 2043
Trucks9%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 30 151 & 218 over Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is US 30 151 & 218 over 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 July 2023.

How much traffic does US 30 151 & 218 over Creek carry?

About 28,500 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is US 30 151 & 218 over Creek?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns US 30 151 & 218 over Creek?

It is owned by the State Highway Agency.