US Bridges

US 30 over Stream

Good

Harrison County, Iowa · 2.4 Mi. E of SR F-32 · Structure no. 000000000027521

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
3,090
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 over Stream is a prestressed concrete stringer/multi-beam or girder carrying US 30 over Stream in Harrison County, Iowa. It was built in 2023, so it is 2 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 3,090 vehicles a day, roughly 24% of them trucks, projected to reach 3,090 by 2044. The structure is 73 ft (22.1 m) long and 47 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 30
CrossesStream
Location2.4 Mi. E of SR F-32
RouteU.S. Route 30
CountyHarrison County
StateIowa
Coordinates41.76417, -95.6826
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.1 m)
Longest span73 ft (22.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,090 (2022)
Projected traffic3,090 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 2023, making it 2 years old in 2025.

What condition is US 30 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 January 2024.

How much traffic does US 30 over Stream carry?

About 3,090 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is US 30 over Stream?

The structure is 73 ft (22.1 m) long with a longest span of 73 ft (22.1 m) and a deck 47 ft wide.

Who owns US 30 over Stream?

It is owned by the State Highway Agency.