US Bridges

Graf RD over Creek

Fair

Dubuque County, Iowa · 089E13204 · Structure no. 000000000365415

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Culvert
Steel
Length
21 ft
3 main spans
Daily traffic
678
2022 count
Owner
County
County Highway Agency

About this bridge

Graf RD over Creek is a steel culvert carrying Graf RD over Creek in Dubuque County, Iowa. It was built in 1985, so it is 40 years old, younger 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 5 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 678 vehicles a day, roughly 12% of them trucks, projected to reach 678 by 2043. The structure is 21 ft (6.4 m) long.

Location

Open in Google Maps
CarriesGraf RD
CrossesCreek
Location089E13204
RouteCounty Highway 0
CountyDubuque County
StateIowa
Coordinates42.48269, -90.87547
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic678 (2022)
Projected traffic678 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Graf RD over Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Graf RD over 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 June 2023.

How much traffic does Graf RD over Creek carry?

About 678 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Graf RD over Creek?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m).

Who owns Graf RD over Creek?

It is owned by the County Highway Agency.