Local over Buncomb Creek

Good

Dubuque County, Iowa · 087E22002 · Structure no. 000000000145801

Built: 1977; 48 years old
Condition: Good; inspected March 2023
Type: Slab; Concrete Continuous
Length: 102 ft; 3 main spans
Daily traffic: 20; 2021 count
Owner: County; County Highway Agency

About this bridge

Local over Buncomb Creek is a concrete continuous slab carrying Local over Buncomb Creek in Dubuque County, Iowa. It was built in 1977, so it is 48 years old, older 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 102 ft (31.1 m) long and 26 ft wide.

Location

Open in Google Maps

CarriesLocal

CrossesBuncomb Creek

Location087E22002

RouteCounty Highway 0

CountyDubuque County

StateIowa

Coordinates42.32792, -90.75772

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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionMarch 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

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating25.4 US tons

Inventory rating19.6 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length102 ft (31.1 m)

Longest span39 ft (11.9 m)

Deck width26 ft (7.9 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2021)

Projected traffic20 by 2043

Trucks0%

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 Local over Buncomb Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Local over Buncomb 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 March 2023.

How much traffic does Local over Buncomb Creek carry?

About 20 vehicles per day (2021 count).

How long is Local over Buncomb Creek?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Local over Buncomb Creek?

It is owned by the County Highway Agency.