US Bridges

US 63 over Stream

Fair

Black Hawk County, Iowa · 1.0 Mi. N of US #20 · Structure no. 000000000014720

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
6,100
2022 count
Owner
State
State Highway Agency

About this bridge

US 63 over Stream is a concrete continuous culvert carrying US 63 over Stream in Black Hawk County, Iowa. It was built in 1967, 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 6,100 vehicles a day, roughly 8% of them trucks, projected to reach 6,100 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 63
CrossesStream
Location1.0 Mi. N of US #20
RouteU.S. Route 63
CountyBlack Hawk County
StateIowa
Coordinates42.47018, -92.39359
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating23.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2022)
Projected traffic6,100 by 2042
Trucks8%
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 63 over Stream built?

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

What condition is US 63 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 September 2023.

How much traffic does US 63 over Stream carry?

About 6,100 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is US 63 over Stream?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns US 63 over Stream?

It is owned by the State Highway Agency.