US Bridges

Key Way over North Fork Catfish Creek

Fair

Dubuque County, Iowa · 0.04 MI N of Keystone DR · Structure no. 000000000505060

Built
2010
15 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
1,932
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Key Way over North Fork Catfish Creek is a concrete continuous culvert carrying Key Way over North Fork Catfish Creek in Dubuque County, Iowa. It was built in 2010, so it is 15 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 6 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 1,932 vehicles a day, projected to reach 1,932 by 2043. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKey Way
CrossesNorth Fork Catfish Creek
Location0.04 MI N of Keystone DR
RouteCity Street 0
CountyDubuque County
StateIowa
Coordinates42.50532, -90.72537
Functional classUrban Local

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,932 (2022)
Projected traffic1,932 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Key Way over North Fork Catfish Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Key Way over North Fork Catfish 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 August 2023.

How much traffic does Key Way over North Fork Catfish Creek carry?

About 1,932 vehicles per day (2022 count).

How long is Key Way over North Fork Catfish Creek?

The structure is 31 ft (9.6 m) long with a longest span of 10 ft (3 m).

Who owns Key Way over North Fork Catfish Creek?

It is owned by the City or Municipal Highway Agency.