US Bridges

US 218 over Stream

Good

Black Hawk County, Iowa · 0.6 Mi. N of Jct. SR D38 · Structure no. 000000000014851

Built
2001
24 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
6,000
2022 count
Owner
State
State Highway Agency

About this bridge

US 218 over Stream is a concrete continuous slab carrying US 218 over Stream in Black Hawk County, Iowa. It was built in 2001, so it is 24 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 6,000 vehicles a day, roughly 4% of them trucks, projected to reach 6,000 by 2042. The structure is 93 ft (28.3 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 218
CrossesStream
Location0.6 Mi. N of Jct. SR D38
RouteU.S. Route 218
StateIowa
Coordinates42.42116, -92.27643
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span35 ft (10.7 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2022)
Projected traffic6,000 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 218 over Stream built?

It was built in 2001, making it 24 years old in 2025.

What condition is US 218 over Stream 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 April 2024.

How much traffic does US 218 over Stream carry?

About 6,000 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is US 218 over Stream?

The structure is 93 ft (28.3 m) long with a longest span of 35 ft (10.7 m) and a deck 47 ft wide.

Who owns US 218 over Stream?

It is owned by the State Highway Agency.