Flannagan RD over Creek

Good

Dubuque County, Iowa · 090011303 · Structure no. 000000000148151

Built: 2016; 9 years old
Condition: Good; inspected September 2022
Type: Slab; Concrete Continuous
Length: 73 ft; 3 main spans
Daily traffic: 118; 2022 count
Owner: County; County Highway Agency

About this bridge

Flannagan RD over Creek is a concrete continuous slab carrying Flannagan RD over Creek in Dubuque County, Iowa. It was built in 2016, so it is 9 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 118 vehicles a day, roughly 28% of them trucks, projected to reach 118 by 2043. The structure is 73 ft (22.3 m) long and 33 ft wide.

Location

Open in Google Maps

CarriesFlannagan RD

CrossesCreek

Location090011303

RouteCounty Highway 0

CountyDubuque County

StateIowa

Coordinates42.60899, -90.91322

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	8 Very Good	No problems noted.
Superstructure	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionSeptember 2022

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations on dry land well above flood water elevations

Structural evaluation8: Equal to present desirable criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating59 US tons

Inventory rating45.3 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length73 ft (22.3 m)

Longest span28 ft (8.5 m)

Deck width33 ft (10.1 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118 (2022)

Projected traffic118 by 2043

Trucks28%

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 Flannagan RD over Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Flannagan RD over 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 September 2022.

How much traffic does Flannagan RD over Creek carry?

About 118 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Flannagan RD over Creek?

The structure is 73 ft (22.3 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns Flannagan RD over Creek?

It is owned by the County Highway Agency.