US Bridges

Manson RD over Catfish Creek

Fair

Dubuque County, Iowa · N.E. of Creekwood DR · Structure no. 000000000502731

Built
2002
23 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
340
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Manson RD over Catfish Creek is a prestressed concrete stringer/multi-beam or girder carrying Manson RD over Catfish Creek in Dubuque County, Iowa. It was built in 2002, so it is 23 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 340 vehicles a day, projected to reach 340 by 2043. The structure is 136 ft (41.5 m) long and 38 ft wide. If it were closed, the detour would be 123 mi (198 km).

Location

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CarriesManson RD
CrossesCatfish Creek
LocationN.E. of Creekwood DR
RouteCity Street 0
CountyDubuque County
StateIowa
Coordinates42.46729, -90.6829
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span52 ft (15.9 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2022)
Projected traffic340 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123 mi (198 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Manson RD over Catfish Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Manson RD over 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 Manson RD over Catfish Creek carry?

About 340 vehicles per day (2022 count).

How long is Manson RD over Catfish Creek?

The structure is 136 ft (41.5 m) long with a longest span of 52 ft (15.9 m) and a deck 38 ft wide.

Who owns Manson RD over Catfish Creek?

It is owned by the City or Municipal Highway Agency.