US Bridges

Empire RD over Stream

Good

Clayton County, Iowa · 0.5 Miles S 270th ST · Structure no. 000000000119991

Built
2017
8 years old
Condition
Good
inspected October 2024
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

Empire RD over Stream is a steel culvert carrying Empire RD over Stream in Clayton County, Iowa. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, projected to reach 35 by 2044. The structure is 24 ft (7.3 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEmpire RD
CrossesStream
Location0.5 Miles S 270th ST
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.82686, -91.41488
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadOther
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Empire RD over Stream built?

It was built in 2017, making it 8 years old in 2025.

What condition is Empire RD 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 October 2024.

How much traffic does Empire RD over Stream carry?

About 35 vehicles per day (2022 count).

How long is Empire RD over Stream?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Empire RD over Stream?

It is owned by the County Highway Agency.