US Bridges

Mines of Spain over Catfish Creek

Good

Dubuque County, Iowa · In Mines of Spain St. Pk. · Structure no. 000000000699760

Built
1993
32 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
—
2022 count
Owner
State
State Highway Agency

About this bridge

Mines of Spain over Catfish Creek is a prestressed concrete stringer/multi-beam or girder carrying Mines of Spain over Catfish Creek in Dubuque County, Iowa. It was built in 1993, so it is 32 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

No traffic count is recorded. The structure is 145 ft (44.2 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMines of Spain
CrossesCatfish Creek
LocationIn Mines of Spain St. Pk.
RouteState Lands Road 0
StateIowa
Coordinates42.46637, -90.6479
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating74.5 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span56 ft (17.1 m)
Deck width40 ft (12.1 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
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

OwnerState Highway Agency
Maintained byState Park, Forest, or Reservation 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 Mines of Spain over Catfish Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mines of Spain 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 April 2023.

How much traffic does Mines of Spain over Catfish Creek carry?

No traffic count is recorded for this structure.

How long is Mines of Spain over Catfish Creek?

The structure is 145 ft (44.2 m) long with a longest span of 56 ft (17.1 m) and a deck 40 ft wide.

Who owns Mines of Spain over Catfish Creek?

It is owned by the State Highway Agency and maintained by the State Park, Forest, or Reservation Agency.