US Bridges

Spook Cave RD over Bloody Run

Good

Clayton County, Iowa · 095042204 · Structure no. 000000000121031

Built
2004
21 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
113
2022 count
Owner
County
County Highway Agency

About this bridge

Spook Cave RD over Bloody Run is a concrete continuous slab carrying Spook Cave RD over Bloody Run in Clayton County, Iowa. It was built in 2004, so it is 21 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.

It carries about 113 vehicles a day, roughly 15% of them trucks, projected to reach 113 by 2044. The structure is 116 ft (35.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSpook Cave RD
CrossesBloody Run
Location095042204
RouteCounty Highway 0
StateIowa
Coordinates43.0331, -91.3076
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 alignment8: Equal to present desirable criteria
Operating rating91.9 US tons
Inventory rating55.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic113 (2022)
Projected traffic113 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Spook Cave RD over Bloody Run built?

It was built in 2004, making it 21 years old in 2025.

What condition is Spook Cave RD over Bloody Run 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 October 2024.

How much traffic does Spook Cave RD over Bloody Run carry?

About 113 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Spook Cave RD over Bloody Run?

The structure is 116 ft (35.4 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns Spook Cave RD over Bloody Run?

It is owned by the County Highway Agency.