US Bridges

Seippel RD over Middle Fork Catfish Crk

Fair

Dubuque County, Iowa · N. of Chavenelle RD · Structure no. 000000000147310

Built
1949
76 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
30 ft
2 main spans
Daily traffic
3,632
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Seippel RD over Middle Fork Catfish Crk is a steel culvert carrying Seippel RD over Middle Fork Catfish Crk in Dubuque County, Iowa. It was built in 1949, so it is 76 years old, older 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 5 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 3,632 vehicles a day, projected to reach 3,632 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSeippel RD
CrossesMiddle Fork Catfish Crk
LocationN. of Chavenelle RD
RouteCity Street 0
CountyDubuque County
StateIowa
Coordinates42.49291, -90.77967
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,632 (2022)
Projected traffic3,632 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$350,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Seippel RD over Middle Fork Catfish Crk built?

It was built in 1949, making it 76 years old in 2025.

What condition is Seippel RD over Middle Fork Catfish Crk 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 Seippel RD over Middle Fork Catfish Crk carry?

About 3,632 vehicles per day (2022 count).

How long is Seippel RD over Middle Fork Catfish Crk?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns Seippel RD over Middle Fork Catfish Crk?

It is owned by the City or Municipal Highway Agency.