US Bridges

Dubuque RD over Indian Creek

Fair

Black Hawk County, Iowa · 88-11-04-03-10 · Structure no. 000000000014680

Built
1957
68 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
2,484
2022 count
Owner
County
County Highway Agency

About this bridge

Dubuque RD over Indian Creek is a concrete continuous culvert carrying Dubuque RD over Indian Creek in Black Hawk County, Iowa. It was built in 1957, so it is 68 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 2,484 vehicles a day, roughly 11% of them trucks, projected to reach 2,484 by 2043. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesDubuque RD
CrossesIndian Creek
Location88-11-04-03-10
RouteCounty Highway 0
CountyBlack Hawk County
StateIowa
Coordinates42.46832, -92.13045
Functional classRural Major Collector

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 inspectionDecember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.7 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,484 (2022)
Projected traffic2,484 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dubuque RD over Indian Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Dubuque RD over Indian Creek 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 December 2023.

How much traffic does Dubuque RD over Indian Creek carry?

About 2,484 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Dubuque RD over Indian Creek?

The structure is 29 ft (8.7 m) long with a longest span of 12 ft (3.7 m).

Who owns Dubuque RD over Indian Creek?

It is owned by the County Highway Agency.