US Bridges

US 30 over Stream

Fair

Crawford County, Iowa · 5.5 Mi. W of W Jct. US 59 · Structure no. 000000000021280

Built
1959
66 years old, rebuilt 1992
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
3,480
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 over Stream is a concrete culvert carrying US 30 over Stream in Crawford County, Iowa. It was built in 1959 and reconstructed in 1992, so it is 66 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 3,480 vehicles a day, roughly 22% of them trucks, projected to reach 3,480 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesUS 30
CrossesStream
Location5.5 Mi. W of W Jct. US 59
RouteU.S. Route 30
CountyCrawford County
StateIowa
Coordinates41.95037, -95.45739
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,480 (2022)
Projected traffic3,480 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 30 over Stream built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.

What condition is US 30 over Stream 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 August 2024.

How much traffic does US 30 over Stream carry?

About 3,480 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is US 30 over Stream?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m).

Who owns US 30 over Stream?

It is owned by the State Highway Agency.