US Bridges

Elmwood DR over Granger Creek

Good

Dubuque County, Iowa · 00000 · Structure no. 000000000146495

Built
2009
16 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
770
2021 count
Owner
County
County Highway Agency

About this bridge

Elmwood DR over Granger Creek is a concrete continuous culvert carrying Elmwood DR over Granger Creek in Dubuque County, Iowa. It was built in 2009, so it is 16 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 770 vehicles a day, roughly 8% of them trucks, projected to reach 770 by 2043. The structure is 26 ft (7.8 m) long.

CarriesElmwood DR
CrossesGranger Creek
Location00000
RouteCity Street 0
StateIowa
Coordinates42.42147, -90.69074
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.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic770 (2021)
Projected traffic770 by 2043
Trucks8%
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 Elmwood DR over Granger Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Elmwood DR over Granger Creek 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 2023.

How much traffic does Elmwood DR over Granger Creek carry?

About 770 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Elmwood DR over Granger Creek?

The structure is 26 ft (7.8 m) long with a longest span of 11 ft (3.4 m).

Who owns Elmwood DR over Granger Creek?

It is owned by the County Highway Agency.