FM over Catfish Creek

Good

Dubuque County, Iowa · 088E22005 · Structure no. 000000000146491

Built: 2017; 8 years old
Condition: Good; inspected May 2023
Type: Slab; Concrete Continuous
Length: 143 ft; 3 main spans
Daily traffic: 737; 2021 count
Owner: County; County Highway Agency

About this bridge

FM over Catfish Creek is a concrete continuous slab carrying FM over Catfish Creek in Dubuque County, Iowa. It was built in 2017, so it is 8 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 737 vehicles a day, projected to reach 737 by 2043. The structure is 143 ft (43.6 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFM

CrossesCatfish Creek

Location088E22005

RouteCounty Highway 0

CountyDubuque County

StateIowa

Coordinates42.42551, -90.74591

Functional classRural Major Collector

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 inspectionMay 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

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 rating46.4 US tons

Inventory rating35.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHL 93

Structure length143 ft (43.6 m)

Longest span55 ft (16.8 m)

Deck width33 ft (10.1 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic737 (2021)

Projected traffic737 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.7 mi (6 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 FM over Catfish Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is FM over Catfish 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 May 2023.

How much traffic does FM over Catfish Creek carry?

About 737 vehicles per day (2021 count).

How long is FM over Catfish Creek?

The structure is 143 ft (43.6 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns FM over Catfish Creek?

It is owned by the County Highway Agency.